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SOIL RESISTIVITY TESTREPORT
(JU-13-34-05)FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM SHOAIBA-3
S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00,K.S.A
Prepared for:M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Ltd.
RIYADHKingdom of Saudi Arabia
Client File # JU-13-034-05 November 2013
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Client File # JU-13-034-05 Jubail BranchSaudi Arabia.
Messrs, 21st November 2013. M/s. Saudi Electricity Company EHV Projects WOA & SOADepartmentJeddahKingdom of Saudi Arabia. Tel.: 01-462 5511 Fax. 01-462 7804 & 279 1709
Attn: Engr. Abdullah H. Al-Malki / Projects Manager OHT/LS & U/G
SUB: - SOIL RESISTIVITY REPORT FOR CONSTRUCTION OF 380KV D/C OHTL FROMSHOAIBA-3 S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
Dear Sirs,
We are pleased to hereby transmit one two (02) original and four (04) photocopies of our SoilResistivity Report for the captioned project.
Should you have any questions, please do not hesitate to contact this office.
We note that our final report is deemed acceptable to you, if we do not hear from you in writing
within 14 calendar days from the date that you received it.
It has been a pleasure being of service to you on this project. Assuring you of our continued co-operation, we remain.
Yours very truly,FOR OMAR JAZZAR CONSULTING ENGINEERS (Geotechnical & Materials Engineers)
Engr. Ikram Ahmed Maqbool,Area Manager-ER.
CC: SSEM Company (Closed Joint Stock Company) – Al Jeddah
Attn.: Mr. Aijaz Hussain / Project Manager
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EARTH RESISTIVITY TEST REPORT
SOIL RESISTIVITY REPORT FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM
SHOAIBA-3 S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
1
TABLE OF CONTENTS
CONTENTS PAGE NO.
1. INTRODUCTION 2
1.1 PURPOSE & SCOPE OF WORK 2
2. PROCEDURE OF TEST 2
2.1 INSTRUMENTATION 3
2.2 DATA ANALYSIS 3
3. RESULTS OF ELECTRICAL RESISTIVITY MEASUREMENTS 4
4. GENERAL COMMENTS 4
Table – 1 EARTH RESISTIVITY TEST RESULTS
Table - 2 TYPICAL RESISTIVITY VALUES FOR DIFFERENT
SOILS AND ROCK.
Table - 3 CORRELATION BETWEEN CORROSIVITY & SOIL
RESISTIVITY
Ref.: CALIBRATION CERTIFICATE OF ERT EQUIPMENT
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EARTH RESISTIVITY TEST REPORT
SOIL RESISTIVITY REPORT FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM
SHOAIBA-3 S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
2
1. INTRODUCTIONThis report presents the results of the Earth Resistivity Tests carried out by AL JAZZAR
(Omar Jazzar Consulting Engineers), Geotechnical & Materials Engineers , for the proposedconstruction of 380kV Over Head Transmission Line (OHTL) from Shoaiba-3 S/S to Al-LithBSP, K.S.A. The work was authorized by M/s. Saudi Services for Electro Mechanic WorksCompany (SSEM) Ltd., Riyadh, Kingdom of Saudi Arabia.
The field work was conducted at (Tower # 08 to 68) sixty one (61) locations between 27th
September and 13th November 2013.
This report describes the work done and the results obtained at the site of proposed
construction of 380kV Over Head Transmission Line (OHTL) from Shoaiba-3 S/S to Al-LithBSP, Kingdom of Saudi Arabia.
1.1 PURPOSE & SCOPE OF WORK
T he purpose of conducting earth resistivity test for the construction of construction of 380kV
Over Head Transmission Line (OHTL) from Shoaiba-3 S/S to Al-Lith BSP,, K.S.A, is toevaluate the surface condition and to determine the apparent electrical resistivity values foruse in the design of earthing and grounding system and also for the evaluation of thecorrosion potential on buried pipes as well as concrete in general.
2. PROCEDURE OF TEST
V ertical electrical sounding were conducted at each test location. The electrical resistivity
was measured by using Wenner Array Method in accordance with ASTM G57-78 and IEEE-81 Standards.
Variations in resistivity at depth were obtained by increasing the spacing of the electrodes.The increased spacing forces the current to flow deeper into the earth in order to completethe circuit, thereby increasing the depth of penetration. The depth of penetration equalsapproximately the electrode spacing ‘a’. The electrode spacing used was 0.5, 1, 2, 3, 5, 7, 9,11, 13 & 15 meter along the North-South and the East-West direction at the test location.
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EARTH RESISTIVITY TEST REPORT
SOIL RESISTIVITY REPORT FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM
SHOAIBA-3 S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
3
2.1 INSTRUMENTATION
T he instrument is battery powered with an output voltage up to 90 volts which is called
Meggar. The current output range of the transmitter is up to 150 milli amperes. The Receiverunit has a range of 1 to 4,000 milli volts. 12 volt rechargeable battery supplies initial powerfor the instrument.
The battery can be recharged by plugging to the external cord to 120 volts 50/60 cycle ACbattery condition which can be determined by the current reading on the front panel orpressing the “Battery Check “push button.
The instrument is supplied with four (4) pieces of steel electrodes and cable reel assembly.The longer cables are meant for connection to current (outer) electrodes to the transmitterunit and the short cables are meant for connection to potential (inner) electrodes to thereceiver.
When current is passed to the ground from the transmitter, through the two outer electrodes,theoretical equi-potential current flow lines are developed by induction around eachelectrode. Consequently, a potential difference is developed between the inner (potential)electrodes.
Potential difference between the potential electrodes can be read from the receiver unit whilethe value of current that give rise to the potential difference can be read from the transmitter
unit.
Figure – 1: Connection Diagram of Wenner four point method.
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EARTH RESISTIVITY TEST REPORT
SOIL RESISTIVITY REPORT FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM
SHOAIBA-3 S/S TO AL-LITH BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
4
2.2 DATA ANALYSIS
T he apparent resistivity of the ground between the inner electrodes is given by the formula.
Pa = KR = 2 π a’R
where, Pa = Apparent resistivity in ohm-meter (or V/I)
K = geometric factor, equals 2π a’
R = apparent resistance of the ground between twoinner electrodes.
a’ = electrode spacing in meter.
3. RESULTS OF ELECTRICAL RESISTIVITY MEASUREMENTS
T he test results are shown in Table 1.1 to 1.61. The Table 2 & 3 given at the end of this
report shall be used for comparing the resistivity values obtained from the different test doneas per the different test directions as well as with the changes of soil strata. The maximumand minimum values of the resistivity tests for the test location shows that the corrosivityobtained from the test results ranges from 0.3 ohm-meter to 3698.1 ohm-meter indicates
very severe to very mild corrosivity of the soil.
4. GENERAL COMMENTS
T he interpretation of resistivity values should be done carefully as the same type of soil/rock
can show different values at different moisture contents and depending on degree ofweathering. Hence, the information on local geological conditions and experience of thegeologist will lead to the conclusions during interpretations. However, the values obtained attests should not be referred directly on the figures given in the tables 2 & 3. It is a guide forcomparison only.
The measured resistivity will be dependent on the degree of compaction/relative density,
moisture content, type of soil/rock, layering of soil strata, rock fissures, cavities, presence offoreign matter, temperature and so on.Yours very truly,
OMAR JAZZAR CONSULTING ENGINEERS (Geotechnical & Material Engineers)
Engr. B. M. Jahidul Islam;B.Sc. Engg(Civil), MBA, MIEB; Engr. Asad Ali, MSc. Geology
Geotechnical & Material Engineer Senior Geologist
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TABLES
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Table - 1.1 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 8 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 0.13 0.4
1 0.08 0.5
2 0.02 0.3
3 0.09 1.7
5 0.02 0.6
7 0.02 0.9
9 0.02 1.1
11 0.02 1.4
13 0.02 1.6
15 0.02 1.9
0.5 0.14 0.4
1 0.05 0.3
2 0.03 0.4
3 0.06 1.1
5 0.02 0.6
7 0.02 0.99 0.02 1.1
11 0.02 1.4
13 0.02 1.6
15 0.02 1.9
Direction
N - S
Direction
E - W
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Table - 1.2 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 9 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 55.00 172.8
1 14.00 88.0
2 4.00 50.3
3 2.00 37.7
5 1.00 31.4
7 1.00 44.0
9 1.00 56.6
11 1.00 69.1
13 1.00 81.7
15 1.00 94.3
0.5 48.00 150.8
1 13.00 81.7
2 4.00 50.3
3 2.00 37.7
5 1.00 31.4
7 1.00 44.09 1.00 56.6
11 1.00 69.1
13 1.00 81.7
15 1.00 94.3
Direction
N - S
Direction
E - W
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Table - 1.3 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 10 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 1.32 4.1
1 0.46 2.9
2 0.11 1.4
3 0.02 0.4
5 0.02 0.6
7 0.02 0.9
9 0.02 1.1
11 0.03 2.1
13 0.02 1.6
15 0.01 0.9
0.5 1.06 3.3
1 0.45 2.8
2 0.40 5.0
3 0.03 0.6
5 0.03 0.9
7 0.03 1.39 0.02 1.1
11 0.01 0.7
13 0.01 0.8
15 0.01 0.9
Direction
N - S
Direction
E - W
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Table - 1.4 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 11 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 1.19 3.7
1 0.32 2.0
2 0.30 3.8
3 0.04 0.8
5 0.04 1.3
7 0.03 1.3
9 0.03 1.7
11 0.03 2.1
13 0.02 1.6
15 0.02 1.9
0.5 1.14 3.6
1 0.08 0.5
2 0.07 0.9
3 0.05 0.9
5 0.04 1.3
7 0.03 1.39 0.02 1.1
11 0.02 1.4
13 0.01 0.8
15 0.01 0.9
Direction
N - S
Direction
E - W
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Table - 1.5 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 12 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 11.00 34.6
1 2.16 13.6
2 2.10 26.4
3 1.00 18.9
5 0.06 1.9
7 0.03 1.3
9 0.02 1.1
11 0.02 1.4
13 0.02 1.6
15 0.20 18.9
0.5 12.28 38.6
1 3.00 18.9
2 0.54 6.8
3 0.45 8.5
5 0.06 1.9
7 0.05 2.29 0.04 2.3
11 0.03 2.1
13 0.03 2.5
15 0.03 2.8
Direction
N - S
Direction
E - W
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Table - 1.6 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 27/09/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 13 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 4.66 14.6
1 1.06 6.7
2 1.02 12.8
3 0.19 3.6
5 0.15 4.7
7 0.01 0.4
9 0.02 1.1
11 0.10 6.9
13 0.10 8.2
15 0.10 9.4
0.5 3.98 12.5
1 1.10 6.9
2 1.45 18.2
3 1.20 22.6
5 0.05 1.6
7 0.04 1.89 0.03 1.7
11 0.08 5.5
13 0.05 4.1
15 0.02 1.9
Direction
N - S
Direction
E - W
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Table - 1.7 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 14 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 25.60 80.4
1 10.25 64.4
2 7.62 95.8
3 5.15 97.1
5 3.38 106.2
7 3.10 136.4
9 1.22 69.0
11 1.15 79.5
13 0.43 35.1
15 0.40 37.7
0.5 27.00 84.8
1 11.55 72.6
2 9.25 116.3
3 6.35 119.7
5 4.80 150.8
7 3.00 132.09 2.80 158.4
11 1.00 69.1
13 1.00 81.7
15 1.00 94.3
Direction
N - S
Direction
E - W
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Table - 1.8 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 15 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 28.70 90.2
1 25.00 157.1
2 5.20 65.4
3 4.00 75.4
5 4.50 141.4
7 5.00 219.9
9 3.00 169.7
11 2.00 138.2
13 2.00 163.4
15 2.00 188.5
0.5 35.30 110.9
1 22.00 138.2
2 4.00 50.3
3 3.80 71.6
5 2.00 62.8
7 2.10 92.49 2.00 113.1
11 2.00 138.2
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
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Table - 1.9 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 16 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 38.00 119.4
1 14.00 88.0
2 10.00 125.7
3 9.00 169.7
5 6.00 188.5
7 4.00 176.0
9 4.60 260.2
11 3.00 207.4
13 3.10 253.2
15 2.00 188.5
0.5 46.00 144.5
1 10.40 65.4
2 8.20 103.1
3 7.50 141.4
5 6.00 188.5
7 4.80 211.19 3.00 169.7
11 3.00 207.4
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
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Table - 1.10 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 17 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 87.00 273.4
1 16.00 100.5
2 10.00 125.7
3 7.00 132.0
5 6.00 188.5
7 4.00 176.0
9 4.10 231.9
11 3.00 207.4
13 3.50 285.9
15 2.00 188.5
0.5 107.00 336.2
1 21.00 132.0
2 9.00 113.1
3 8.00 150.8
5 5.00 157.1
7 5.20 228.79 4.00 226.2
11 4.00 276.5
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
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Table - 1.11 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 18 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 41.00 128.8
1 14.00 88.0
2 8.00 100.5
3 5.00 94.3
5 5.20 163.4
7 5.00 219.9
9 4.00 226.2
11 2.98 206.0
13 2.10 171.6
15 2.00 188.5
0.5 24.00 75.4
1 12.00 75.4
2 8.00 100.5
3 6.00 113.1
5 4.00 125.7
7 3.60 158.49 3.00 169.7
11 2.40 165.9
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
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Table - 1.13 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 04/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 20 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 32.00 100.5
1 13.00 81.7
2 9.00 113.1
3 7.00 132.0
5 4.30 135.1
7 4.10 180.4
9 4.00 226.2
11 3.00 207.4
13 2.20 179.7
15 1.80 169.7
0.5 28.00 88.0
1 11.00 69.1
2 7.00 88.0
3 6.40 120.7
5 5.10 160.2
7 4.00 176.09 3.20 181.0
11 3.00 207.4
13 2.40 196.1
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.14 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 21 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 46.00 144.5
1 21.00 132.0
2 18.00 226.2
3 14.00 263.9
5 12.00 377.0
7 10.00 439.9
9 6.00 339.3
11 3.00 207.4
13 3.00 245.1
15 2.00 188.5
0.5 56.00 176.0
1 19.00 119.4
2 13.91 174.8
3 11.50 216.8
5 10.00 314.2
7 8.00 351.99 6.00 339.3
11 4.00 276.5
13 3.20 261.4
15 3.00 282.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.15 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 22 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 29.60 93.0
1 57.00 358.2
2 18.00 226.2
3 13.00 245.1
5 11.00 345.6
7 7.00 307.9
9 7.10 401.5
11 5.00 345.6
13 5.20 424.8
15 4.00 377.0
0.5 39.20 123.2
1 53.00 333.1
2 15.00 188.5
3 12.50 235.7
5 10.00 314.2
7 9.10 400.39 8.00 452.4
11 7.60 525.3
13 7.00 571.8
15 5.00 471.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.16 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 23 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 331.00 1040.0
1 35.00 219.9
2 8.00 100.5
3 6.00 113.1
5 5.00 157.1
7 4.00 176.0
9 3.00 169.7
11 3.00 207.4
13 3.00 245.1
15 2.00 188.5
0.5 540.00 1696.7
1 37.00 232.5
2 11.00 138.2
3 7.00 132.0
5 6.00 188.5
7 3.00 132.09 3.00 169.7
11 2.00 138.2
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.17 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 24 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 37.00 116.3
1 23.00 144.5
2 19.00 238.8
3 16.00 301.6
5 11.00 345.6
7 8.00 351.9
9 6.00 339.3
11 4.00 276.5
13 4.00 326.8
15 4.00 377.0
0.5 30.00 94.3
1 27.00 169.7
2 19.00 238.8
3 15.00 282.8
5 12.00 377.0
7 9.00 395.99 5.00 282.8
11 5.40 373.3
13 4.00 326.8
15 3.00 282.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.18 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 25 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 40.00 125.7
1 26.00 163.4
2 18.00 226.2
3 14.00 263.9
5 10.00 314.2
7 7.00 307.9
9 5.00 282.8
11 4.00 276.5
13 3.00 245.1
15 2.00 188.5
0.5 43.00 135.1
1 24.00 150.8
2 16.00 201.1
3 13.00 245.1
5 9.00 282.8
7 5.00 219.99 4.00 226.2
11 4.50 311.1
13 3.00 245.1
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.19 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 26 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 28.00 88.0
1 21.00 132.0
2 17.00 213.7
3 12.00 226.2
5 10.00 314.2
7 6.00 263.9
9 5.00 282.8
11 4.10 283.4
13 3.80 310.4
15 3.50 329.9
0.5 31.00 97.4
1 23.00 144.5
2 15.00 188.5
3 11.00 207.4
5 8.00 251.4
7 6.00 263.99 5.30 299.7
11 5.00 345.6
13 4.50 367.6
15 4.10 386.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.20 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 27 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 35.00 110.0
1 22.00 138.2
2 17.00 213.7
3 14.15 266.8
5 10.00 314.2
7 7.40 325.5
9 5.10 288.4
11 3.20 221.2
13 2.50 204.2
15 2.20 207.4
0.5 37.00 116.3
1 26.00 163.4
2 18.00 226.2
3 12.00 226.2
5 9.00 282.8
7 6.10 268.39 4.80 271.5
11 3.00 207.4
13 2.10 171.6
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.21 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 28 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 39.00 122.5
1 25.00 157.1
2 15.00 188.5
3 11.00 207.4
5 8.00 251.4
7 6.00 263.9
9 5.00 282.8
11 4.30 297.2
13 3.00 245.1
15 2.50 235.7
0.5 42.00 132.0
1 28.00 176.0
2 20.00 251.4
3 14.00 263.9
5 10.00 314.2
7 7.00 307.99 5.00 282.8
11 4.00 276.5
13 3.00 245.1
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.22 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 29 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 90.00 282.8
1 35.00 219.9
2 14.00 176.0
3 10.00 188.5
5 8.00 251.4
7 5.00 219.9
9 4.00 226.2
11 4.40 304.1
13 3.00 245.1
15 2.00 188.5
0.5 70.00 219.9
1 16.00 100.5
2 13.00 163.4
3 10.00 188.5
5 7.00 219.9
7 4.00 176.09 4.30 243.2
11 3.00 207.4
13 2.00 163.4
15 1.80 169.7
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.23 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 30 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 76.00 238.8
1 18.60 116.9
2 11.00 138.2
3 9.00 169.7
5 6.00 188.5
7 3.00 132.0
9 2.00 113.1
11 0.67 46.3
13 0.65 53.1
15 0.60 56.6
0.5 57.00 179.1
1 20.00 125.7
2 12.00 150.8
3 8.00 150.8
5 5.00 157.1
7 3.00 132.09 2.00 113.1
11 1.80 124.4
13 1.00 81.7
15 1.00 94.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.24 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 31 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 103.00 323.6
1 37.00 232.5
2 18.00 226.2
3 11.00 207.4
5 7.00 219.9
7 5.00 219.9
9 4.00 226.2
11 3.50 241.9
13 3.00 245.1
15 2.00 188.5
0.5 91.00 285.9
1 37.00 232.5
2 16.00 201.1
3 13.00 245.1
5 9.00 282.8
7 3.00 132.09 3.00 169.7
11 3.00 207.4
13 3.10 253.2
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.25 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 32 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 4.50 14.1
1 5.19 32.6
2 5.22 65.6
3 4.00 75.4
5 3.72 116.9
7 3.00 132.0
9 2.24 126.7
11 2.00 138.2
13 1.80 147.0
15 1.60 150.8
0.5 4.66 14.6
1 4.60 28.9
2 4.30 54.0
3 4.00 75.4
5 3.40 106.8
7 3.20 140.89 2.00 113.1
11 1.43 98.8
13 1.30 106.2
15 1.29 121.6
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.26 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 33 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 61.80 194.2
1 29.70 186.6
2 15.00 188.5
3 7.27 137.1
5 3.00 94.3
7 1.66 73.0
9 1.10 62.2
11 0.73 50.5
13 0.52 42.5
15 0.39 36.8
0.5 62.80 197.3
1 33.40 209.9
2 13.32 167.4
3 8.00 150.8
5 3.19 100.2
7 2.40 105.69 1.23 69.6
11 0.80 55.3
13 0.61 49.8
15 0.42 39.6
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.27 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 18/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 34 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 29.20 91.7
1 16.05 100.9
2 9.20 115.6
3 6.88 129.7
5 5.00 157.1
7 3.30 145.2
9 3.00 169.7
11 1.64 113.4
13 1.00 81.7
15 0.92 86.7
0.5 35.10 110.3
1 16.40 103.1
2 10.49 131.8
3 6.20 116.9
5 4.73 148.6
7 4.16 183.09 2.07 117.1
11 2.00 138.2
13 1.29 105.4
15 1.10 103.7
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.28 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 35 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 56.20 176.6
1 23.90 150.2
2 13.64 171.4
3 6.20 116.9
5 2.65 83.3
7 1.10 48.4
9 0.36 20.4
11 0.20 13.8
13 0.13 10.6
15 0.10 9.4
0.5 52.20 164.0
1 34.20 214.9
2 15.80 198.6
3 6.51 122.7
5 3.00 94.3
7 0.87 38.39 0.60 33.9
11 0.44 30.4
13 0.40 32.7
15 0.30 28.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.29 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 36 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 7.70 24.2
1 4.30 27.0
2 3.10 39.0
3 2.60 49.0
5 1.70 53.4
7 1.40 61.6
9 1.36 76.9
11 1.30 89.9
13 1.25 102.1
15 1.00 94.3
0.5 6.80 21.4
1 5.60 35.2
2 4.10 51.5
3 3.30 62.2
5 2.10 66.0
7 2.00 88.09 1.40 79.2
11 1.10 76.0
13 0.98 80.1
15 0.90 84.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.30 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 37 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 8.55 26.9
1 5.28 33.2
2 4.30 54.0
3 3.23 60.9
5 2.20 69.1
7 1.23 54.1
9 1.00 56.6
11 0.79 54.6
13 0.75 61.3
15 0.83 78.2
0.5 6.86 21.6
1 5.00 31.4
2 4.92 61.8
3 3.50 66.0
5 2.29 72.0
7 1.86 81.89 1.18 66.7
11 1.10 76.0
13 0.78 63.7
15 0.75 70.7
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.31 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 38 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 6.36 20.0
1 5.07 31.9
2 4.36 54.8
3 2.44 46.0
5 2.10 66.0
7 0.98 43.1
9 0.80 45.2
11 0.58 40.1
13 0.55 44.9
15 0.50 47.1
0.5 6.96 21.9
1 5.33 33.5
2 3.41 42.9
3 2.86 53.9
5 1.78 55.9
7 1.60 70.49 0.34 19.2
11 0.30 20.7
13 0.30 24.5
15 0.32 30.2
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.32 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 39 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 51.10 160.6
1 27.70 174.1
2 11.74 147.5
3 8.38 158.0
5 4.59 144.2
7 2.34 102.9
9 1.71 96.7
11 1.24 85.7
13 0.99 80.9
15 0.90 84.8
0.5 43.40 136.4
1 31.40 197.3
2 15.29 192.2
3 5.60 105.6
5 2.48 77.9
7 1.78 78.39 1.50 84.8
11 1.19 82.3
13 1.60 130.7
15 0.95 89.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.33 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 25/10/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 40 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 25.10 78.9
1 21.80 137.0
2 19.10 240.0
3 12.12 228.5
5 4.02 126.3
7 2.59 113.9
9 1.66 93.9
11 1.27 87.8
13 2.00 163.4
15 2.00 188.5
0.5 25.70 80.7
1 20.50 128.8
2 18.50 232.5
3 12.70 239.4
5 4.03 126.6
7 2.69 118.39 2.02 114.2
11 1.17 80.9
13 0.98 80.1
15 0.90 84.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.34 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 41 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 43.90 137.9
1 28.40 178.5
2 11.20 140.8
3 6.38 120.3
5 4.00 125.7
7 2.34 102.9
9 2.10 118.8
11 1.15 79.5
13 1.00 81.7
15 0.97 91.4
0.5 37.90 119.1
1 24.00 150.8
2 9.37 117.8
3 6.10 115.0
5 3.43 107.8
7 2.18 95.99 1.25 70.7
11 1.00 69.1
13 2.00 163.4
15 2.00 188.5
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.35 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 42 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 42.40 133.2
1 32.40 203.6
2 18.20 228.7
3 13.14 247.7
5 6.25 196.4
7 3.50 154.0
9 3.00 169.7
11 2.48 171.4
13 2.00 163.4
15 1.52 143.3
0.5 54.00 169.7
1 31.90 200.5
2 18.20 228.7
3 12.00 226.2
5 6.16 193.5
7 5.10 224.39 2.48 140.3
11 2.18 150.7
13 1.40 114.4
15 1.00 94.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.36 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 43 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 32.90 103.4
1 37.20 233.8
2 27.00 339.3
3 15.10 284.7
5 6.80 213.7
7 3.37 148.2
9 2.10 118.8
11 0.94 65.0
13 0.90 73.5
15 0.86 81.1
0.5 38.50 121.0
1 33.00 207.4
2 21.60 271.5
3 13.80 260.2
5 5.71 179.4
7 3.50 154.09 1.33 75.2
11 1.00 69.1
13 0.66 53.9
15 0.62 58.4
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.37 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 44 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 77.60 243.8
1 39.80 250.1
2 18.20 228.7
3 12.24 230.7
5 8.46 265.8
7 5.53 243.3
9 4.26 240.9
11 3.22 222.6
13 3.00 245.1
15 2.00 188.5
0.5 108.80 341.8
1 48.90 307.3
2 16.78 210.9
3 10.12 190.8
5 7.93 249.2
7 5.30 233.19 6.00 339.3
11 3.10 214.3
13 2.77 226.3
15 2.60 245.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.38 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 45 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 100.20 314.8
1 58.32 366.5
2 28.00 351.9
3 15.87 299.2
5 11.00 345.6
7 8.48 373.0
9 6.10 345.0
11 5.69 393.3
13 4.90 400.3
15 3.00 282.8
0.5 142.30 447.1
1 61.20 384.6
2 21.40 269.0
3 16.35 308.2
5 9.80 307.9
7 6.24 274.59 6.36 359.7
11 5.20 359.4
13 4.59 375.0
15 3.10 292.2
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.39 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 46 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 291.00 914.3
1 137.00 860.9
2 37.00 465.0
3 30.00 565.6
5 21.50 675.5
7 13.63 599.6
9 12.00 678.7
11 10.00 691.2
13 8.00 653.5
15 7.00 659.8
0.5 271.00 851.5
1 113.00 710.1
2 54.00 678.7
3 31.50 593.8
5 19.40 609.5
7 12.10 532.39 11.18 632.3
11 9.80 677.4
13 6.38 521.2
15 6.00 565.6
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.40 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 10/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 47 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 39.40 123.8
1 30.30 190.4
2 24.00 301.6
3 18.00 339.3
5 11.00 345.6
7 6.07 267.0
9 4.85 274.3
11 3.39 234.3
13 3.16 258.1
15 3.00 282.8
0.5 41.00 128.8
1 34.20 214.9
2 21.00 263.9
3 20.40 384.6
5 11.29 354.7
7 5.60 246.39 5.54 313.3
11 4.57 315.9
13 4.24 346.4
15 3.60 339.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.41 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 48 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 50.80 159.6
1 45.50 285.9
2 28.30 355.7
3 22.80 429.8
5 12.62 396.5
7 10.29 452.6
9 6.80 384.6
11 4.00 276.5
13 5.00 408.5
15 3.10 292.2
0.5 61.80 194.2
1 46.00 289.1
2 30.60 384.6
3 20.42 385.0
5 11.31 355.4
7 8.62 379.29 5.40 305.4
11 4.14 286.2
13 4.00 326.8
15 2.82 265.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.42 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 49 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 81.50 256.1
1 51.80 325.5
2 26.45 332.4
3 18.70 352.5
5 18.10 568.7
7 17.70 778.6
9 11.54 652.7
11 13.92 962.2
13 7.10 580.0
15 5.24 493.9
0.5 62.70 197.0
1 41.20 258.9
2 23.90 300.4
3 16.85 317.7
5 16.84 529.1
7 15.20 668.69 10.78 609.7
11 9.22 637.3
13 6.92 565.3
15 5.36 505.2
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.43 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 50 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 43.90 137.9
1 43.80 275.2
2 33.70 423.5
3 27.10 510.9
5 25.10 788.6
7 18.26 803.2
9 15.43 872.7
11 12.34 853.0
13 11.07 904.3
15 10.00 942.6
0.5 42.50 133.5
1 40.70 255.8
2 35.00 439.9
3 32.10 605.1
5 24.80 779.2
7 14.27 627.79 12.80 723.9
11 8.88 613.8
13 8.00 653.5
15 7.00 659.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.44 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 51 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 52.20 164.0
1 41.10 258.3
2 30.00 377.0
3 32.20 607.0
5 26.00 816.9
7 20.00 879.8
9 16.20 916.2
11 11.87 820.5
13 11.00 898.6
15 10.00 942.6
0.5 73.50 230.9
1 49.10 308.5
2 39.00 490.2
3 29.10 548.6
5 25.40 798.1
7 21.00 923.79 15.88 898.1
11 13.00 898.6
13 12.07 986.0
15 12.00 1131.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.45 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 52 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 29.10 91.4
1 17.80 111.9
2 15.77 198.2
3 17.80 335.6
5 15.26 479.5
7 13.07 574.9
9 11.00 622.1
11 9.85 680.9
13 11.00 898.6
15 10.00 942.6
0.5 27.40 86.1
1 18.83 118.3
2 18.20 228.7
3 17.50 329.9
5 16.56 520.3
7 15.39 677.09 10.00 565.6
11 11.07 765.2
13 11.00 898.6
15 12.00 1131.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.46 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 53 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 510.00 1602.4
1 121.00 760.4
2 28.00 351.9
3 22.00 414.7
5 18.00 565.6
7 16.00 703.8
9 13.00 735.2
11 11.00 760.4
13 10.00 816.9
15 8.00 754.1
0.5 563.00 1768.9
1 112.00 703.8
2 25.00 314.2
3 22.00 414.7
5 19.00 597.0
7 14.00 615.89 12.00 678.7
11 10.00 691.2
13 8.40 686.2
15 7.00 659.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.47 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 11/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 54 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 137.10 430.8
1 104.00 653.5
2 48.50 609.5
3 45.40 855.9
5 22.00 691.2
7 18.60 818.2
9 15.00 848.3
11 11.58 800.5
13 11.00 898.6
15 9.00 848.3
0.5 132.00 414.7
1 126.00 791.8
2 48.00 603.3
3 42.40 799.3
5 19.00 597.0
7 16.00 703.89 14.00 791.8
11 12.00 829.5
13 7.81 638.0
15 7.00 659.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.48 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 55 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 60.60 190.4
1 45.70 287.2
2 23.10 290.3
3 18.50 348.8
5 13.40 421.0
7 10.66 468.9
9 8.00 452.4
11 6.25 432.0
13 6.15 502.4
15 6.00 565.6
0.5 80.70 253.6
1 50.00 314.2
2 22.40 281.5
3 16.20 305.4
5 12.10 380.2
7 11.00 483.99 6.16 348.4
11 6.00 414.7
13 5.54 452.6
15 5.00 471.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
8/16/2019 A. Twr# 8 to Twr# 68
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Table - 1.49 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 56 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 516.00 1621.3
1 115.00 722.7
2 48.00 603.3
3 38.00 716.4
5 27.00 848.3
7 22.00 967.7
9 16.00 904.9
11 14.00 967.7
13 12.00 980.3
15 10.00 942.6
0.5 532.00 1671.5
1 165.00 1036.9
2 50.00 628.4
3 37.00 697.5
5 28.00 879.8
7 25.00 1099.79 15.00 848.3
11 14.00 967.7
13 12.10 988.5
15 12.00 1131.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.50 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 57 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 460.00 1445.3
1 84.00 527.9
2 31.00 389.6
3 24.00 452.4
5 21.00 659.8
7 17.00 747.8
9 14.00 791.8
11 11.00 760.4
13 10.00 816.9
15 10.00 942.6
0.5 545.00 1712.4
1 83.00 521.6
2 30.00 377.0
3 22.00 414.7
5 20.00 628.4
7 18.00 791.89 13.00 735.2
11 10.00 691.2
13 9.00 735.2
15 8.00 754.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.51 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 58 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 1177.00 3698.1
1 333.00 2092.6
2 60.00 754.1
3 34.00 641.0
5 28.00 879.8
7 21.00 923.7
9 17.00 961.5
11 13.00 898.6
13 12.00 980.3
15 9.00 848.3
0.5 118.00 370.8
1 289.00 1816.1
2 51.00 641.0
3 32.00 603.3
5 27.00 848.3
7 23.00 1011.79 16.00 904.9
11 12.00 829.5
13 11.00 898.6
15 10.00 942.6
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.52 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 59 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 282.00 886.0
1 127.00 798.1
2 30.00 377.0
3 22.00 414.7
5 16.00 502.7
7 11.00 483.9
9 9.00 509.0
11 7.00 483.9
13 5.00 408.5
15 4.00 377.0
0.5 199.00 625.3
1 75.00 471.3
2 27.00 339.3
3 23.00 433.6
5 17.00 534.1
7 13.00 571.89 9.00 509.0
11 6.00 414.7
13 5.00 408.5
15 4.00 377.0
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.53 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 60 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 627.00 1970.0
1 191.00 1200.2
2 30.00 377.0
3 19.00 358.2
5 15.00 471.3
7 12.00 527.9
9 10.00 565.6
11 8.00 553.0
13 7.00 571.8
15 6.00 565.6
0.5 695.00 2183.7
1 154.00 967.7
2 28.00 351.9
3 19.00 358.2
5 16.00 502.7
7 11.00 483.99 11.00 622.1
11 9.00 622.1
13 8.00 653.5
15 7.00 659.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.54 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 12/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 61 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 430.00 1351.1
1 150.00 942.6
2 78.00 980.3
3 47.00 886.0
5 28.00 879.8
7 12.00 527.9
9 9.00 509.0
11 6.00 414.7
13 6.00 490.2
15 4.00 377.0
0.5 565.00 1775.2
1 148.00 930.0
2 80.00 1005.4
3 37.00 697.5
5 26.00 816.9
7 13.00 571.89 11.00 622.1
11 7.00 483.9
13 6.00 490.2
15 5.00 471.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.55 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 62 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 137.40 431.7
1 60.00 377.0
2 22.00 276.5
3 15.00 282.8
5 12.00 377.0
7 9.00 395.9
9 7.50 424.2
11 6.00 414.7
13 5.00 408.5
15 4.00 377.0
0.5 124.60 391.5
1 52.90 332.4
2 23.00 289.1
3 16.00 301.6
5 10.70 336.2
7 8.00 351.99 6.00 339.3
11 5.00 345.6
13 4.00 326.8
15 4.00 377.0
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.56 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 63 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 874.00 2746.1
1 236.00 1483.0
2 40.00 502.7
3 25.00 471.3
5 21.00 659.8
7 17.00 747.8
9 16.00 904.9
11 11.00 760.4
13 9.00 735.2
15 7.00 659.8
0.5 1045.00 3283.4
1 301.00 1891.5
2 44.00 553.0
3 23.00 433.6
5 19.00 597.0
7 16.00 703.89 14.00 791.8
11 11.00 760.4
13 9.00 735.2
15 8.00 754.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.57 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 64 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 531.00 1668.4
1 161.00 1011.7
2 52.00 653.5
3 20.00 377.0
5 18.00 565.6
7 14.00 615.8
9 12.00 678.7
11 10.00 691.2
13 8.00 653.5
15 6.00 565.6
0.5 749.00 2353.4
1 217.00 1363.6
2 27.00 339.3
3 22.00 414.7
5 17.00 534.1
7 13.00 571.89 11.00 622.1
11 9.00 622.1
13 9.00 735.2
15 8.00 754.1
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.58 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 65 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 32.00 100.5
1 26.60 167.2
2 17.00 213.7
3 12.03 226.8
5 8.00 251.4
7 5.37 236.2
9 4.00 226.2
11 3.97 274.4
13 3.00 245.1
15 3.00 282.8
0.5 55.90 175.6
1 29.40 184.7
2 10.42 131.0
3 9.10 171.6
5 7.79 244.8
7 6.00 263.99 4.03 227.9
11 3.87 267.5
13 3.40 277.8
15 3.17 298.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.59 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 66 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 21.10 66.3
1 24.50 154.0
2 13.20 165.9
3 8.94 168.5
5 7.20 226.2
7 6.08 267.4
9 4.28 242.1
11 3.77 260.6
13 3.30 269.6
15 2.45 230.9
0.5 26.90 84.5
1 23.70 148.9
2 13.06 164.1
3 10.00 188.5
5 9.02 283.4
7 6.10 268.39 4.12 233.0
11 4.10 283.4
13 1.95 159.3
15 1.80 169.7
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.60 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 67 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 78.20 245.7
1 49.60 311.7
2 33.60 422.3
3 21.46 404.6
5 16.65 523.1
7 11.00 483.9
9 9.38 530.5
11 8.26 571.0
13 8.00 653.5
15 7.71 726.7
0.5 67.70 212.7
1 55.80 350.6
2 27.50 345.6
3 20.00 377.0
5 18.20 571.8
7 13.62 599.19 12.00 678.7
11 7.24 500.5
13 4.28 349.6
15 4.56 429.8
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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Table - 1.61 : Electrical Resistivity Test Results(ASTM - D - 57)
Client : M/s. Saudi Services for Electro Mechanic Works Company (SSEM) Client File # : JU-13-034-05
Project : The construction of 380kV D/C OHTL from Shoaiba-3 S/S Testing Date : 13/11/2013
: to Al-Lith BSP UNDER SEC- WOA CONTRACT # 31131150/00 Tested By : Shafi
Location : Shoaiba to Al-Lith - Kingdom of Saudi Arabia Witnessed By : SEC Representative
Coordinates:
Equipment Used:- Megger Digital - Earth Tester DET 5 /4R
Electrode Resistance Apparent
Test # 68 Spacing Resistivity
a'
meter Ohm Ohm-Meter
0.5 18.90 59.4
1 14.13 88.8
2 11.64 146.3
3 10.06 189.7
5 7.20 226.2
7 5.22 229.6
9 4.80 271.5
11 4.40 304.1
13 4.71 384.8
15 4.50 424.2
0.5 15.20 47.8
1 14.56 91.5
2 9.88 124.2
3 9.12 171.9
5 6.13 192.6
7 5.10 224.39 4.33 244.9
11 4.26 294.5
13 3.95 322.7
15 3.60 339.3
Direction
N - S
Direction
E - W
ERT rslt._8-68.xls
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EARTH RESISTIVITY TEST REPORT
FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM SHOAIBA-3 S/S TO AL-LITH
BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
TABLE – 2
TYPICAL RESISTIVITY VALUES FOR DIFFERENT SOILS AND ROCKS
Material Resistivity ohm-meter.
Clay 3 - 30
Saturated organic clay or silt 5 - 20
Sandy clay 5 - 40
Saturated inorganic clay or silt 10 - 50
Clayey sand 30 - 100
Hard, partially saturated clays and silts,saturated sand and gravel 50 - 150
Shales, dry clays, silts 100 - 500
Sand, gravel 100 - 4000
Sandstone 100 - 8000
Sandstone, dry sands and gravel 200 - 1000
Crystalline rocks 200 - 10000
Sound crystalline rocks 1000 - 10000
Rock salt, Anhydrite >10000
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EARTH RESISTIVITY TEST REPORT
FOR THE CONSTRUCTION OF 380KV D/C OHTL FROM SHOAIBA-3 S/S TO AL-LITH
BSP, UNDER SEC- WOA CONTRACT # 31131150/00, K.S.A
TABLE – 3
CORRELATION BETWEEN CORROSIVITY & SOIL RESISTIVITY
SOIL RESISTIVITY CORROSIVITY OHM METER
0 - 10 VERY SEVERE
10 - 20 SEVERE
20 - 50 MODERATE
50 - 100 MILD
100+ VERY MILD
Corrosivity is based on the correlation presented by JD Palmer in an article entitled “SoilResistivity - Measurement and Analysis” Published in Material Performance Vol.13, 1974.
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46 465.0 914.3
47 123.8 384.6
48 159.6 452.6
49 197.0 962.2
50 133.5 942.6
51 164.0 1131.1
52 86.1 1131.1
53 314.2 1768.9
54 414.7 898.6
55 190.4 565.6
56 603.3 1671.5
57 377.0 1712.4
58 370.8 3698.159 339.3 886.0
60 351.9 2183.7
61 377.0 1775.2
62 276.5 431.7
63 433.6 3283.4
64 339.3 2353.4
65 100.5 298.8
66 66.3 283.4
67 212.7 726.7
68 47.8 424.2