PVCLSF Building Wires Cables

8/10/2019 PVCLSF Building Wires Cables

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OMAN CABLES INDUSTRY (SAOG)

PVC & LSF BUILDING WIRES / CABLES

Truly Omani....

Trusted Globally...

www.omancables.com



1

OCI/PB BW/REV.001/010909

Oman Cables Industry (SAOG) was established in 1984 and started commercial production

of Single Core Wires in 1987. Setting a 10 year target period to manufacture LV Power

Cables, Control Cables, Low Smoke Flame Retarding (LSF/FRLS) Cables, Over Head Line

Conductors and Flexible Cables for both, domestic and export markets.

In a journey spanning over two decades, Oman Cables Industry (SAOG) has always strived

towards excellence and quality in all its activities. The various awards won by OCI bear

testimony to this, be it being the five-time winner of His Majesty’s trophies for the best

industry and the various Flame of Excellence and Exporter of the Year awards. OCI exports

its products across the globe to Europe, UK, Far East, Asia, Middle East and the Pacific Rim.

OCI is humbly proud of its efforts and success and believes success is not a destination but

a journey. It will strive further to achieve even higher pinnacles of success and continue tooffer better service and satisfaction to its distributors and end-users.



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3


Index

Description Page No

Notes on the use of PVC Insulated Wires/Cables 4

Notes on the use of LSF Insulated Wires/Cables 5

Materials, construction and identification 6

Copper Conductor Construction – Table 1 7

Copper / PVC Single Core , non-sheathed cables –dimensions & weights – Table 2 & 2 A 8

Copper / LSF Single Core non-sheathed cables –dimensions & weights – Table 3 & 3 A 9

Single Core – CU / PVC / PVC 300/500 Volts – Table 4 10

Single Core – CU / XLPE / LSF or CU / LSF / LSF 450/750 Volts – Table 5 10

Current rating & voltage drop –For 700 C PVC Insulated Cables – Table 6 & 6A 11/12

Current rating & voltage drop – for 900 CThermosetting insulated (XLPE or LSF) Cables – Table 7 & 7A 13/14

Installation methods for wires/cables – Table 8 15

Rating Factors – Table 9 16

Group rating factors – Table 10 16

General Installation Guidelines 17

Special Guidelines for LSF Insulated / Sheathed Cables 18

Oman Cables Quality Assurance 19



4


Notes on the use of PVC Insulated

Wires/Cables as per BS 6004Polyvinyl Chloride (PVC)Compounds

PVC compounds used in wires and cablesas per BS 6004, are described in BSEN50363-3 / BS 7655-4.2

Several grades of compounds are detailedin these standards for both insulation andsheathing requirements. PVC compoundsare thermoplastic by nature andconsequently are designed to operatewithin a prescribed temperature range.

Grades of PVC can therefore be selected tosuit particular environment temperatures,with the maximum conductor temperaturefor heat resisting grade PVC being 900 C

and the lowest operating temperaturegrade PVC below minus 300 C. OmanCables also offer LSF and FRLS cables,

suitable for use in fire hazards areas orwhere safety of human life against toxicgases is of prime importance.

The majority of wiring installations,however, use a general purpose grade of PVC which has a minimum operating

temperature of 700 C; this grade of PVCwires should not be installed or flexedwhen the air temperature is nearing 00 C.A wide range of bright colours can beformulated with PVC compounds.

Sheath colours are normally grey, black orwhite. Other colours can be provided onspecial order but experience has shownthat for outdoor use, black colour has the

highest resistance to direct sunlight, withother colour tending to fade in the timeunder these conditions.

PVC Compounding Plant

Fine Wire



5


Note on the use of LSF Insulated Wires/Cables

as per BS 7211LSF Compound

LSF Compound used in wires as per BS 7211 is Thermosetting Insulation suitable foroperating temperature of 900 C, Type EI5 to BSEN 50363-5.

PVC when burnt emits large quantities of dense black smoke and acid gas, and in additionto the debilitating effect of smoke and toxic fume inhalation, obscuration of fire safety exitsdelays or prevents escape. Improved PVC formulations producing less smoke and acid gashave been developed but still do not satisfy required emission levels. The demand thereforehas been for materials to replace PVC which do not give off smoke and toxic fumes and do

not contain halogens. The materials need to have the following characteristics:-

a) Fire retardant and zero halogen b) Low emission of smoke, toxic fumes and acid gases during combustionc) Similar mechanical and electrical properties to PVCd) Acceptable proccess-abilitye) Low additional cost

Detailed properties of the above material are• Halogen Content – Max 0.5%

• pH value –Minimum 4.3• Conductivity – maximum 10 micro Siemens/mm

Properties PVC LSFOxidation Resistance E EHeat Resistance G-E GOil Resistance F PLow-Temperature Flexibility P-G F-GWeather, Sun Resistance G-E POzone Resistance E EAbration Resistance F-G FElectrical Properties F-G FFlame Resistance G ENuclear Radiation Resistance F GWater Resistance F-G FAcid Resistance G-E GAlkali Resistance G-E GAliphatic Hydrocarbons Resistance P PAromatic Hydrocarbons Resistance P-F PHalogenated Hydrocarbons Resistance P-F P

Alcohol Resistance P-F GUnderground Burial P-G F-G

Legend : E = Excellent, G = Good, P = Poor, F = Fair

Comparison of Chemical Resistance Properties of LSF and PVC



6


Materials, construction and identification

Conductor Insulation Sheath

Plain Copper PVC or LSF or XLPE PVC or LSF

(Solid or Stranded) (Coloured) (Coloured)

OCI can provide all colours as mentioned in applicable standards for Insulation & forSheath.

Note: LSF means Low Smoke & Fumes. It is also known as LSOH or LSZH. Thereforeword ‘LSF’ wherever appeared in this catalogue can be considered as LSOH orLSZH.

CU/PVC or CU/LSF Wire

CU/PVC/PVC or CU/LSF/LSF or CU/XLPE/LSF Cables



7


Copper Conductor ConstructionTable 1

Nominal Minimum Nominal Maximum conductor resistance (d.c.) at 200 CConductor Area number diameter of per km for Plain Annealed copper conductor

(mm2) of wires conductor (mm) (in ohm / km)

1.0 1* 1.13 18.1

1.5 7 1.59 12.1

1.5 1* 1.38 12.1

2.5 1* 1.78 7.41

2.5 7 2.01 7.41

4 7 2.52 4.61

6 7 3.10 3.08

10 7 4.00 1.83

16 6 4.80 1.15

25 6 5.90 0.727

35 6 6.90 0.524

50 6 8.10 0.387

70 12 9.70 0.268

95 15 11.40 0.193

120 18 12.90 0.153

150 18 14.30 0.124

185 30 16.00 0.0991

240 34 18.40 0.0754

300 34 20.60 0.0601

400 53 23.30 0.047

500 53 26.30 0.0366

630 53 30.00 0.0283

* Solid Conductor

NOTE:Plain annealed copper conductor class 1 solid or class 2 stranded circular compacted or

non-compacted as per BSEN 60228.



8


Single Core Cables (CU/PVC)Table 2

PVC insulated, non-sheathed general purpose cables 450/750V single core(rigid conductor) as per BS 6004.Harmonized standard designationSolid conductor H07V-UStranded conductor H07V-R

Nominal conductor Class of Nominal Radial Maximum Overall Approximatearea conductor Thickness of diameter weight

insulationmm2 mm mm kg/km

1.5 1 0.7 3.2 211.5 2 0.7 3.3 21

2.5 1 0.8 3.9 322.5 2 0.8 4.0 324 2 0.8 4.6 476 2 0.8 5.2 6610 2 1.0 6.7 11016 2 1.0 7.8 170

25 2 1.2 9.7 26035 2 1.2 10.9 35050 2 1.4 12.8 48070 2 1.4 14.6 68095 2 1.6 17.1 930120 2 1.6 18.8 1160

150 2 1.8 20.9 1430185 2 2.0 23.3 1740240 2 2.2 26.6 2270300 2 2.4 29.6 2840400 2 2.6 33.2 3640500 2 2.8 36.9 4650630 2 2.8 41.1 5940

Table 2 - A

PVC Insulated non-sheathed cable for internal wiring 300/500 V single core as per BS 6004.Harmonized standard designation H05V-U



0.5 1 0.6 2.3 8.60.75 1 0.6 2.5 11.001.00 1 0.6 2.7 14.00

Construction (Table 2 & 2-A) : Plain annealed copper conductor, class 1 solid conductor, or class 2

stranded conductor, as per Table 1, PVC Insulation (Type TI -1 for 700

C operating temperature)**** We can also provide HRPVC, Type TI -3 insulated non-sheathed cables (suitable for 90 0 C operatingtemperature)



9


Single Core Cables (CU/LSF)Table 3

Thermosetting (LSF) insulated, non-sheathed cables 450/750 V Single core(rigid conductors) as per BS 7211.Harmonized standard designationSolid conductor H07Z-UStranded conductor H07Z-R



1.5 1 0.7 3.3 21

1.5 2 0.7 3.4 21

2.5 1 0.8 4.0 32

2.5 2 0.8 4.1 32

4 2 0.8 4.7 47

6 2 0.8 5.4 66

10 2 1.0 7.0 110

16 2 1.0 8.0 170

25 2 1.2 10.1 260

35 2 1.2 11.3 350

50 2 1.4 13.2 480

70 2 1.4 15.1 680

95 2 1.6 17.6 930

120 2 1.6 19.4 1160

150 2 1.8 21.6 1430

185 2 2.0 24.1 1740

240 2 2.2 27.5 2270

300 2 2.4 30.6 2840

400 2 2.6 34.3 3640

500 2 2.8 38.2 4650630 2 2.8 42.5 5940

Table 3 - AThermosetting (LSF) Insulated non-sheathed cable for internal wiring 300/500 Voltssingle core as per BS 7211. Harmonized standard designation H05Z-U



0.50 1 0.6 2.4 8.60

0.75 1 0.6 2.6 11.00

1.00 1 0.6 2.8 14.00

Construction (Table 3 & 3-A) : Plain annealed copper conductor - Class 1 solid conductor or class 2 strandedconductor, as per Table 1, Thermosetting (LSF) insulation (Type EI5 for 900C operating temperature)



10


Single Core Cables (CU/PVC/PVC)

Table 4Plain annealed copper conductor as per Table 1 , PVC insulated, PVC sheathedcable 300/500 V single core as per BS 6004

Nominal conductor Nominal Radial Nominal Radial Overall diameter Approximatearea Thickness of Thickness of maximum weight

insulation sheathmm2 mm mm mm kg/km

1.0*# 0.6 0.8 4.5 28

1.5* 0.7 0.8 4.9 36

2.5* 0.8 0.8 5.8 51

4 0.8 0.9 6.8 756 0.8 0.9 7.4 98

10 1.0 0.9 8.8 150

16 1.0 1.0 10.5 220

25 1.2 1.1 12.5 300

35 1.2 1.1 13.5 400

* Solid Conductor#Exclude BASEC Approval

Single Core Cables (CU/XLPE/LSF or CU/LSF/LSF)Table 5

Plain annealed Copper Conductor as per Table 1, Thermosetting insulated(XLPE or LSF), LSF sheathed cables 450/750V single core as per BS7211

Nominal conductor Nominal Radial Nominal Radial Overall diameter Approximatearea Thickness of Thickness of maximum weight

insulation sheathmm2 mm mm mm kg/km

1* 0.7 0.8 4.8 28

1.5 0.7 0.8 5.2 36

2.5 0.7 0.8 5.6 51

4 0.7 0.9 6.4 75

6 0.7 0.9 7.1 98

10 0.7 0.9 8.1 150

16 0.7 0.9 9.2 220

25 0.9 1.0 11.4 300

35 0.9 1.1 12.8 400

* Solid Conductor



1

2

3

4

5

6

7

8

9

1 0

1 1

1 2

( m m 2 )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

1

1 1

1 0 . 5

1 3 . 5

1 2

1 5 . 5

1 4

-

-

-

-

-

1 . 5

1 4 . 5

1 3 . 5

1 7 . 5

1 5 . 5

2 0

1 8

-

-

-

-

-

2 . 5

2 0

1 8

2 4

2 1

2 7

2 5

-

-

-

-

-

4

2 6

2 4

3 2

2 8

3 7

3 3

-

-

-

-

-

6

3 4

3 1

4 1

3 6

4 7

4 3

-

-

-

-

-

1 0

4 6

4 2

5 7

5 0

6 5

5 9

-

-

-

-

-

1 6

6 1

5 6

7 6

6 8

8 7

7 9

-

-

-

-

-

2 5

8 0

7 3

1 0 1

8 9

1 1 4

1 0 4

1 3 1

1 1 4

1 1 0

1 4 6

1 3 0

3 5

9 9

8 9

1 2 5

1 1 0

1 4 1

1 2 9

1 6 2

1 4 3

1 3 7

1 8 1

1 6 2

5 0

1 1 9

1 0 8

1 5 1

1 3 4

1 8 2

1 6 7

1 9 6

1 7 4

1 6 7

2 1 9

1 9 7

7 0

1 5 1

1 3 6

1 9 2

1 7 1

2 3 4

2 1 4

2 5 1

2 2 5

2 1 6

2 8 1

2 5 4

9 5

1 8 2

1 6 4

2 3 2

2 0 7

2 8 4

2 6 1

3 0 4

2 7 5

2 6 4

3 4 1

3 1 1

1 2 0

2 1 0

1 8 8

2 6 9

2 3 9

3 3 0

3 0 3

3 5 2

3 2 1

3 0 8

3 9 6

3 6 2

1 5 0

2 4 0

2 1 6

3 0 0

2 6 2

3 8 1

3 4 9

4 0 6

3 7 2

3 5 6

4 5 6

4 1 9

1 8 5

2 7 3

2 4 5

3 4 1

2 9 6

4 3 6

4 0 0

4 6 3

4 2 7

4 0 9

5 2 1

4 8 0

2 4 0

3 2 1

2 8 6

4 0 0

3 4 6

5 1 5

4 7 2

5 4 6

5 0 7

4 8 5

6 1 5

5 6 9

3 0 0

3 6 7

3 2 8

4 5 8

3 9 4

5 9 4

5 4 5

6 2 9

5 8 7

5 6 1

7 0 9

6 5 9

4 0 0

-

-

5 4 6

4 6 7

6 9 4

6 3 4

7 5 4

6 8 9

6 5 6

8 5 2

7 9 5

5 0 0

-

-

6 2 6

5 3 3

7 9 2

7 2 3

8 6 8

7 8 9

7 4 9

9 8 2

9 2 0

6 3 0

-

-

7 2 0

6 1 1

9 0 4

8 2 6

1 0 0 5

9 0 5

8 5 5

1 1 3 8

1 0 7 0

A m b i e n t t e m p e r a t u r e : 3 0 ° C

C o n d u c t o r o p e r a t i n g t e m p e r a t u r e : 7 0 ° C

C o n d u c -

t o r

c r o s s -

s e c t i o n a l

a r e a

R e f e r e n c e m e t h o d A

( e n c l o s e d i n c o n d u i t

i n t h e r m a l l y

i n s u l a t i n g w a l l e t c . )

R e f e r e n c e M e t h o d B

( e n c l o

s e d i n c o n d u i t

o n

a w a l l o r i n

t r u

n k i n g e t c . )

R e f e r e n c e M

e t h o d C

( c l i p p e d

d i r e c t )

R e f e r e n c e M e t h o d F ( i n f r e e a i r o r o n a p e r f o r a

t e d

c a b l e t r a y h o r i z o n t a l o r v e r t i c a l )

T o u c

h i n g

S p a c e d b y o n e

d i a m e t e r

2 c a b l e s ,

s i n g l e -

p h a s e a . c .

o r d . c .

3 o r 4

c a b l e s ,

t h r e e

p h a s e a . c .

2 c a b l e s ,

s i n g l e -

p h a s e

a . c . o r d

. c .

3 o r 4

c a b l e s ,

t h r e e

p h a s e a . c .

2 c a b l e s ,

s i n g l e -

p h a s e

a . c . o r d . c .

f l a t a n d

t o u c h i n g

3 o r 4

c a b l e s , t h r e e

p h a s e a . c .

f l a t a n d

t o u c h i n g o r

t r e f o i l

2 c a b l e s ,

s i n g l e -

p h a s e

a . c . o r d . c .

f l a t

3 c a

b l e s ,

t h r e e - p h a s e

a . c . f l a t

3 c a b l e s ,

t h r e e -

p h a s e

a . c . t r e f o i l

2 c a b l e s , s i n

g l e - p h a s e

a . c . o r d . c . o

r 3 c a b l e s

t h r e e - p h a s e a . c . f l a t

H o r i z o n t a l

V e r t i c a l

T a b l e

6

S i n g l e - c o r e 7 0 ° C t h e r m o p l a s t i c ( P V C ) i n s u l a t e d c a b l e s , n o n - a r m o u r e d ,

w i t h o r w i t h o u t s h e a t h

( C O P P E R C O N D U C T O R S )

C U R R E N

T - C A R R Y I N G C A P A C I T Y ( a m p e

r e s ) :

11




12


T a b l e - 6 A

1

2

3

4

5

6

7

8

9

( m m 2 )

( m V / A / m )

( m V /

A / m )

( m V / A / m )

( m V

/ A / m )

( m V / A / m )

( m V / A / m )

( m V / A / m )

( m

V / A / m )

1

4 4

4

4

4 4

4 4

3 8

3 8

3 8

3 8

1 . 5

2 9

2

9

2 9

2 9

2 5

2 5

2 5

2 5

2 . 5

1 8

1

8

1 8

1 8

1 5

1 5

1 5

1 5

4

1 1

1

1

1 1

1 1

9 . 5

9 . 5

9 . 5

9 . 5

6

7 . 3

7

. 3

7 . 3

7 . 3

6 . 4

6 . 4

6 . 4

6 . 4

1 0

4 . 4

4

. 4

4 . 4

4 . 4

3 . 8

3 . 8

3 . 8

3 . 8

1 6

2 . 8

2

. 8

2 . 8

2 . 8

2 . 4

2 . 4

2 . 4

2 . 4

2 5

1 . 7 5

1 . 8 0

1 . 7 5

1 . 8 0

1 . 5 5

1 . 5 0

1 . 5 5

1 . 5 5

3 5

1 . 2 5

1 . 3 0

1 . 2 5

1 . 3 0

1 . 1 0

1 . 1 0

1 . 1 0

1 . 1 5

5 0

0 . 9 3

1 . 0 0

0 . 9 5

0 . 9 7

0 . 8 5

0 . 8 2

0 . 8 4

0 . 8 6

7 0

0 . 6 3

0 . 7 2

0 . 6 6

0 . 6 9

0 . 6 1

0 . 5 7

0 . 6 0

0 . 6 3

9 5

0 . 4 6

0 . 5 6

0 . 5 0

0 . 5 4

0 . 4 8

0 . 4 3

0 . 4 7

0 . 5 1

1 2 0

0 . 3 6

0 . 4 7

0 . 4 1

0 . 4 5

0 . 4 1

0 . 3 6

0 . 4 0

0 . 4 4

1 5 0

0 . 2 9

0 . 4 1

0 . 3 4

0 . 3 9

0 . 3 6

0 . 3 0

0 . 3 4

0 . 4 0

1 8 5

0 . 2 3

0 . 3 7

0 . 2 9

0 . 3 5

0 . 3 2

0 . 2 6

0 . 3 1

0 . 3 6

2 4 0

0 . 1 8 0

0 . 3 3

0 . 2 5

0 . 3 1

0 . 2 9

0 . 2 2

0 . 2 7

0 . 3 4

3 0 0

0 . 1 4 5

0 . 3 1

0 . 2 2

0 . 2 9

0 . 2 7

0 . 1 9 0

0 . 2 5

0 . 3 2

4 0 0

0 . 1 0 5

0 . 2 9

0 . 2 0

0 . 2 7

0 . 2 5

0 . 1 7 5

0 . 2 4

0 . 3 1

5 0 0

0 . 0 8 6

0 . 2 8

0 . 1 8 5

0 . 2 6

0 . 2 5

0 . 1 6 0

0 . 2 3

0 . 3 0

6 3 0

0 . 0 6 8

0 . 2 7

0 . 1 7 5

0 . 2 5

0 . 2 4

0 . 1 5 0

0 . 2 2

0 . 2 9

2 c a b l e s , s i n g l e - p h a s e a . c .

3 o r 4 c a b l e s , t h r e e - p h a s e a . c .

C o n d u c t o r

c r o

s s - s e c -

t i o n a l a r e a

2 c a b l e s d . c .

R e f e r e n c e

M e t h o d s

A & B

( e n c l o s

e d i n

c o n d u

i t o r

t r u n k

i n g )

R e f e r e n c e M e t h o d s C & F ( c

l i p p e d

d i r e c t , o n t r a y o r i n f r e e

a i r )

R e f e r e n c e

M e t h o d s A & B

( e n c l o s e d i n

c o n d u i t o r

t r u n k i n g )

C a b l e s t o u c h i n g

C a b l e s

s p a c e d *

" R e f e r e n c e m e t h o d s C & F

( c l i p p e d d i r e c t , o n t r y o r i n f r e e a i r ) , "

C a b l e

s t o u c h i n g ,

T r e f o i l

C a b l e s t o u c h i n g ,

F l a t

C a b

l e s s p a c e d * ,

F l a t

V O L T

A G E D R O P ( p e r a m p e r e p e r m e t r e ) : f o r W i r e s / C a b l e s

a s m e

n t i o n e d i n T a b l e 6


* N o t e :

S p a c i n g l a r g e r t h a n o n e c a b l e d i a m e t e r w i l l r e s u l t i n a l a r g e r v o l t a g e d r o p



13


1

2

3

4

5

6

7

8

9

1 0

( m

m 2 )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

( A )

1

1 4

1 3

1 7

1 5

1 9

1 7 . 5

-

-

-

1

. 5

1 9

1 7

2 3

2 0

2 5

2 3

-

-

-

2

. 5

2 6

2 3

3 1

2 8

3 4

3 1

-

-

-

4

3 5

3 1

4 2

3 7

4 6

4 1

-

-

-

6

4 5

4 0

5 4

4 8

5 9

5 4

-

-

-

1

0

6 1

5 4

7 5

6 6

8 1

7 4

-

-

-

1

6

8 1

7 3

1 0 0

8 8

1 0 9

9 9

-

-

-

2

5

1 0 6

9 5

1 3 3

1 1 7

1 4 3

1 3 0

1 6 1

1 4 1

1 3 5

3

5

1 3 1

1 1 7

1 6 4

1 4 4

1 7 6

1 6 1

2 0 0

1 7 6

1 6 9

5

0

1 5 8

1 4 1

1 9 8

1 7 5

2 2 8

2 0 9

2 4 2

2 1 6

2 0 7

7

0

2 0 0

1 7 9

2 5 3

2 2 2

2 9 3

2 6 8

3 1 0

2 7 9

2 6 8

9

5

2 4 1

2 1 6

3 0 6

2 6 9

3 5 5

3 2 6

3 7 7

3 4 2

3 2 8

1 2 0

2 7 8

2 4 9

3 5 4

3 1 2

4 1 3

3 7 9

4 3 7

4 0 0

3 8 3

1 5 0

3 1 8

2 8 5

3 9 3

3 4 2

4 7 6

4 3 6

5 0 4

4 6 4

4 4 4

1 8 5

3 6 2

3 2 4

4 4 9

3 8 4

5 4 5

5 0 0

5 7 5

5 3 3

5 1 0

2 4 0

4 2 4

3 8 0

5 2 8

4 5 0

6 4 4

5 9 0

6 7 9

6 3 4

6 0 7

3 0 0

4 8 6

4 3 5

6 0 3

5 1 4

7 4 3

6 8 1

7 8 3

7 3 6

7 0 3

4 0 0

-

-

6 8 3

5 8 4

8 6 8

7 9 3

9 4 0

8 6 8

8 2 3

5 0 0

-

-

7 8 3

6 6 6

9 9 0

9 0 4

1 0 8 3

9 9 8

9 4 6

6 3 0

-

-

9 0 0

7 6 4

1 1 3 0

1 0 3 3

1 2 5 4

1 1 5 1

1 0 8 8

T a b l e

7

S i n g l e - c o r e 9 0 ° C t h e r m o s e t t i n g i n s u l a t e d ( X L P E o r L S F ) c a b l e s , n o n - a r m o u r e d ,

w i t h o r w i t h o u

t s h e a t h

( C O P P E R C O N D

U C T O R S )

C U R

R E N T - C A R R Y I N G C A P A C I T Y ( a m p e r e s ) :

A m b i e n t t e m p e r a t u r e : 3 0 ° C


C o n

d u c -

t o r c

r o s s -

s e c t i o n a l

a r e a

R e f e r e n c e m e t h o d A

( e n c l o s e d i n c o n d u i t i n

t h e r m a l l y i n s u l a t i n g

w a l l e t c . )

R e f e r e n c e M e t h o d B

( e n c l o s e d i n c o n d u i t o n a

w a l l o r i n t r u n k i n g e t c . )

R e f e r e n c e M e t h o d F ( i n f r e e a i r o r o n a

p e r f o r a t e d c a b l e t r a y h o r i z o n t a l o r v e r t i c a l )

T o u c h i n g

2 c a b l e s ,

s i n g l e -

p h a s e

a . c . o r

d . c .

3 o r 4 c a b l e s ,


a . c .

2 c a b l e s ,

s i n g l e - p h a s e

a . c . o r d . c

3 o r 4 c a b l e s ,


a . c .

2 c a b l e s ,

s

i n g l e - p h a s e

a . c . o r d . c . f l a t

a

n d t o u c h i n g

3 o r 4 c a b l e s ,


a . c . f l a t a n d

t o u c h i n g o r

t r e f o i l

2 c a b l e s ,

s i n g l e - p h a s e

a . c . o r d . c . f l a t

3 c a b l e s ,


a . c . f l a t

3

c a b l e s ,

t h r

e e - p h a s e

a . c t r e f o i l

R e f e r e n c e M e t h o d C

( c l i p p e d d i r e c t )



14


1

2

3

4

5

6

7

8

9

( m

m 2 )

( m V / A / m )

( m V / A /

m )

( m V / A / m )

( m V / A

/ m )

( m V / A / m )

( m V / A / m )

( m V / A / m )

( m V / A / m )

1

4 6

4 6

4 6

4 6

4 0

4

0

4 0

4 0

1 . 5

3 1

3 1

3 1

3 1

2 7

2

7

2 7

2 7

2 . 5

1 9

1 9

1 9

1 9

1 6

1

6

1 6

1 6

4

1 2

1 2

1 2

1 2

1 0

1

0

1 0

1 0

6

7 . 9

7 . 9

7 . 9

7 . 9

6 . 8

6 . 8

6 . 8

6 . 8

1 0

4 . 7

4 . 7

4 . 7

4 . 7

4 . 0

4 . 0

4 . 0

4 . 0

1 6

2 . 9

2 . 9

2 . 9

2 . 9

2 . 5

2 . 5

2 . 5

2 . 5

2 5

1 . 8 5

1 . 9 0

1 . 8 5

1 . 8 5

1 . 6 5

1 . 6 0

1 . 6 0

1

. 6 5

3 5

1 . 3 5

1 . 3 5

1 . 3 5

1 . 3 5

1 . 1 5

1 . 1 5

1 . 1 5

1

. 2 0

5 0

0 . 9 9

1 . 0 5

1 . 0 0

1 . 0 0

0 . 9 0

0 . 8 7

0 . 8 7

0

. 8 9

7 0

0 . 6 8

0 . 7 5

0 . 7 1

0 . 7 3

0 . 6 5

0 . 6 1

0 . 6 2

0

. 6 5

9 5

0 . 4 9

0 . 5 8

0 . 5 2

0 . 5 6

0 . 5 0

0 . 4 5

0 . 4 6

0

. 4 9

1 2 0

0 . 3 9

0 . 4 8

0 . 4 3

0 . 4 7

0 . 4 2

0 . 3 7

0 . 3 8

0

. 4 2

1 5 0

0 . 3 2

0 . 4 3

0 . 3 6

0 . 4 1

0 . 3 7

0 . 3 1

0 . 3 2

0

. 3 7

1 8 5

0 . 2 5

0 . 3 7

0 . 3 0

0 . 3 6

0 . 3 2

0 . 2 6

0 . 2 8

0

. 3 3

2 4 0

0 . 1 9 0

0 . 3 3

0 . 2 5

0 . 3 1

0 . 2 9

0 . 2 2

0 . 2 4

0

. 2 9

3 0 0

0 . 1 5 5

0 . 3 1

0 . 2 2

0 . 2 9

0 . 2 7

0 . 1

9 5

0 . 2 1

0

. 2 7

4 0 0

0 . 1 2 0

0 . 2 9

0 . 2 0

0 . 2 7

0 . 2 5

0 . 1

7 5

0 . 1 9 5

0

. 2 6

5 0 0

0 . 0 9 3

0 . 2 8

0 . 1 8 5

0 . 2 6

0 . 2 4

0 . 1

6 0

0 . 1 8 0

0

. 2 5

6 3 0

0 . 0 7 2

0 . 2 7

0 . 1 7 5

0 . 2 5

0 . 2 3

0 . 1

5 0

0 . 1 7 0

0

. 2 4

T a b

l e - 7 A

F o r W i r e s / c a b l e s

a s m e n t i o n e d i n T a b l e 7

2 c a b l e s , s i n g l e - p h a s e a . c .

V O L T A G E D R O P ( p e r a m p e r e p e r m e t r e ) :

3 o r 4 c a b l e s , t h r e e - p h a s e a . c .

C o n d u c t o r

c r o s s - s e c -

t i o n a l

a r e a

2 c a b l e s d . c .

R e f e r e n c

e

M e t h o d s A

& B

( e n c l o s e d

i n

c o n d u i t o r

t r u n k i n g

)

R e f e r e n c e M e t h o d s C & F ( c l i p

p e d

d i r e c t , o n t r a y o r i n f r e e a i r )

R e f e r e n c e

M e t h o d s A & B

( e n c l o s e d i n

c o n d u i t o r

t r u n k i n g )

C a b l e s t o u c h i n g

C a b l e s s p

a c e d *

" R e f e r e n c e m e t h o d s C & F

( c l i p p e d d i r e c t , o n t r a y o r i n f r e e a i r ) , "


T r e

f o i l


F l a t

C a b l e s

s p a c e d * ,

F l a t


* N o t e : S p

a c i n g l a r g e r t h a n o n e c a b l e d i a m e t e r w i l l

r e s u l t i n a l a r g e r v o l t a g e d r o p


http://slidepdf.com/reader/full/pvclsf-building-wires-cables 16/22OCI/PB BW/REV.001/010909

Table - 8

Examples Description Reference Method tobe used to determinecurrent carrying capacity

Non-sheathed cables in conduit Ain a thermally insulated wall

with an inner skin having athermal conductance of not lessthan 10 W/m2K

Non-sheathed cables in a Bconduit on a wooden ormasonry wall or spaced lessthan 0.3 x conduit diameterfrom it c

Single-core or multicore cables: C- Fixed on (clipped

direct), or spaced lessthan 0.3x cablediameter fromwooden or masonrywall c

Single-core or multicore cables: E or F- On perforated tray run

horizontally or vertically c,h

Installation Methods for Wires/Cables

c Care is needed where the cable runs vertically and ventilation is restricted. The ambienttemperature at the top of the vertical section can be much higher.

h De = the external diameter of a multicore cable:- 2.2 x the cable diameter when three single core cables are bound in trefoil, or- 3 x the cable diameter when three single core cables are laid in flat formation.

15



16


Table 9Rating FactorsThe tabulated ratings must be reduced for ambient air temperatures higher than 30 0 C; appropriate

temperature ratings factors are as follows: -

AmbientTemperature 250 C 300 C 350 C 400 C 450 C 500 C 550 C 600 C

PVC 700 C 1.03 1 0.94 0.87 0.79 0.71 0.61 0.5

Thermosetting900 C (XLPE or LSF) 1.02 1 0.96 0.91 0.87 0.82 0.76 0.71

Table 10

Group Rating Factors

Rating factors for one circuit or one multicore cable or for a group of circuits, or a group of multicore cables,to be used with current carrying capacities of Table 6 & 7

Arrangement(cables touching) 1 2 3 4 5 6 7 8 9 12 16 20

Bunched in air,on a surface,embedded orenclosed 1.00 0.80 0.70 0.65 0.60 0.57 0.54 0.52 0.50 0.45 0.41 0.38 Methods A to F

Single layeron wallor floor 1.00 0.85 0.79 0.75 0.73 0.72 0.72 0.71 0.70 0.70 0.70 0.70 Method C

To be used withcurrent carrying

capacities,Reference

Number of circuits or multicore cables

NOTE 1: These factors are applicable to uniform groups of cables, equally loaded.NOTE 2: Where horizontal clearances between adjacent cables exceeds twice their overall diameter, norating factor need be applied.NOTE 3: If a group consists of n single-core cables it may either be considered as n/ 2 circuits of two loadedconductors or n/ 3 circuits of three loaded conductors.



17


General Installation Guidelines

At temperatures of about 00 C plastic cables begin to stiffen and should not be bent sharplyor struck at these, or lower temperatures. Prior to installation, cables should be stores for atleast 24 hours in a warm place. Low temperatures have no harmful effect; cables regaintheir normal flexibility at higher temperatures.

Cables should be installed in accordance with the appropriate installation authorityregulations.

Bending radius (minimum internal radius of bend) six times the diameter.



18


Special Guidelines for LSF insulated /

sheathed cablesLSF (low smoke & fume) insulation / sheath does not have the same mechanical strength as other insulation/ sheath material, particularly at higher temperatures.

It is therefore recommended that LSF insulated/sheathed cables should be used mainly indoors, and onlywhere cables have been specified to have low smoke and toxic gas emission property.

InstallationWe recommend the following special guidelines, inconjunction with the standard installation instructions.

• The cables should be stored in proper packed condition, in shade and direct exposure to sun should beavoided.

• As LSF has lower tear strength property as compared to PVC/PE sheath, special care should be takenduring installation to avoid any damage. Even a small cut on the LSF insulation/sheath will result insheath cracking, as it will run in longitudinal direction due to lower tear strength property of LSFinsulation/sheath.

• Use pay in rollers and corner rollers of non-metallic material (Nylon or Teflon) at least every 3 to 4 meterswhile laying the cable.

• As far as possible installation should be undercover or indoors. For outdoor installation, direct exposureto sunlight should be avoided by using a suitable cable tray.

• The cables should not be in contact with any hot surface.

• The requirement of minimum bending radius should be followed as per data sheet.

• Any clamping device should not be applied directly on the outer sheath. There should be some cushion(for instance a rubber pad of approx. 3 mm thickness) between the cable’s outer surface and clamps.

• Maximum distance of unsupported length of cable for horizontal and vertical run should be as below:

Overall diameter of Max. spacing between the Max. spacing between the

cable (mm) supports for horizontal run (mm) supports for vertical run (mm)

0-14.9 350 450

15-19.9 400 550

20-39.9 450 600

40-59.9 700 900

60 & above 1100 1300

Re-windingIn case re-winding should be necessary, extreme caution should be taken during the process to avoid damage.The following should be adhered to:

• The winding should be done equally and uniformly with no over-riding of the coils or pinching on the

sides of the drum.• The pay-off drum should have an adequate braking system to prevent the cable from coming loose on the

drum.



19


Oman Cables Quality Assurance

In order to ensure the best quality assurance system, it is extremely desirable to test andinspect the product at each stage of manufacturing including raw materials and finishedproduct.

Oman Cables have the following Quality Assurance System:-

A. Raw Materials InspectionB. In-process inspectionC. Finished product inspection

Raw Materials Inspection:All the raw materials are procured only from internationally approved companies knownfor their quality products and once the material is received with their product certification,Oman Cables quality team tests and inspects the same again. Only those materials whichmeet Oman Cables internal standards are released for production.

In-Process Inspection:A team of well experienced and qualified personnel, dedicated to quality, inspects and testall the In-Process materials at every stage and materials complies to the specifiedrequirements are only released for next process.

Finished Product Inspection:Oman Cables products before leaving ware house undergo the entire applicable testaccording to the standard to which it is manufactured.

Routine tests are carried out for conformity to the specifications on 100% cable drums.Sample tests and type tests are carried out at regular intervals as per the applicablestandards to conform the product quality.

Testing Laboratory



20


Notes



UAE OFFICE

P.O. Box 25864

Sharjah (U.A.E.)

Tel. : +971 6-5743558

Fax : +971 6-5731039

Email : [email protected]

QATAR OFFICE

P.O. Box 24410, Salwa Road

Doha (Qatar)

Tel. : +974 4688384

SAUDI ARABIA OFFICE

P.O. Box 69806

Riyadh 11557

Office # 305 (Sada-1)

Kingdom of Saudi Arabia

GSM. : +966 559722500

Direct : +966 1 4163351

Tel : +966 1 462 8000 Ext 305

Fax : +966 1 462 8543

FACTORY & HEAD OFFICE

P.O. Box 25, Postal Code 124,

Rusayl, Sultanate of Oman

Tel. +968 2444 6464

Fax +968 2444 6096

e.mail: [email protected]

PVCLSF Building Wires Cables

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