Indian Electricity Rules
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Indian Electricity Rules / Central Electricity Authority 1. Right of Way Clearance (As per GETCO Standard) 2. Minimum clearances between Electrical Lines crossing each other 3. Permissible Min ground Clearance of Electrical Line 4. Clearance for Telephone line Crossings Power Line 5. Vertical Clearance between Electrical Line and railway tracks 6. Clearance from Buildings to low, medium & high voltage lines 7. Clearance above ground at the lowest conductor 8. Vertical Clearance at Middle of Span 9. Safety Clearance from Live Part in Outdoor Substation 10. Lying of Telecommunication Cables with Power Cables (>33 kV) 11. Safe approach limits for people Code: Indian Electricity Rules / Central Electricity Authority Right of Way Clearance (As per GETCO Standard) KV Min ROW 66 KV 18 Meter 132 KV 27 Meter 220 KV 35 Meter 400KV 52 Meter (Single Circuit) 400 KV 48 Meter (Double Circuit) Go to Content ↑ Minimum clearances between Electrical Lines crossing each other Voltage 66 KV 132 KV 220 KV 400 KV 66 KV 2.4 Meter 3 Meter 4.5 Meter 5.4 Meter 132 KV 3 Meter 3 Meter 4.5 Meter 5.4 Meter 220 KV 4.5 Meter 4.5 Meter 4.5 Meter 5.4 Meter 400 KV 4.5 Meter 5.4 Meter 5.4 Meter 5.4 Meter
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Transcript of Indian Electricity Rules
Indian Electricity Rules / Central Electricity Authority1. Right of Way Clearance (As per GETCO Standard)
2. Minimum clearances between Electrical Lines crossing each other
3. Permissible Min ground Clearance of Electrical Line
4. Clearance for Telephone line Crossings Power Line
5. Vertical Clearance between Electrical Line and railway tracks
6. Clearance from Buildings to low, medium & high voltage lines
7. Clearance above ground at the lowest conductor
8. Vertical Clearance at Middle of Span
9. Safety Clearance from Live Part in Outdoor Substation
10. Lying of Telecommunication Cables with Power Cables (>33 kV)
11. Safe approach limits for people
Code: Indian Electricity Rules / Central Electricity Authority
Right of Way Clearance (As per GETCO Standard)
KV Min ROW
66 KV 18 Meter
132 KV 27 Meter
220 KV 35 Meter
400KV 52 Meter (Single Circuit)
400 KV 48 Meter (Double Circuit)
Go to Content ↑
Minimum clearances between Electrical Lines crossing each other
Voltage 66 KV 132 KV 220 KV 400 KV
66 KV 2.4 Meter 3 Meter 4.5 Meter 5.4 Meter
132 KV 3 Meter 3 Meter 4.5 Meter 5.4 Meter
220 KV 4.5 Meter 4.5 Meter 4.5 Meter 5.4 Meter
400 KV 4.5 Meter 5.4 Meter 5.4 Meter 5.4 Meter
Go to Content ↑
Permissible Min ground Clearance of Electrical Line
KV Ground Clearance Over National Highway
66 KV 6.1 Meter 8.0 Meter
132 KV 6.1 Meter 8.6 Meter
220 KV 7.0 Meter 9.8 Meter
400KV 8.8 Meter 10.8 Meter
Go to Content ↑
Clearance for Telephone line Crossings Power Line
KV Clearance (Min)
66 KV 2.4 Meter
132 KV 2.7 Meter
220 KV 3.0 Meter
Go to Content ↑
Vertical Clearance between Electrical Line and railway tracks
KV Clearance (Min)
66 KV 14 Meter
132 KV 14.6 Meter
220 KV 15.4 Meter
400 KV 17.9 Meter
Go to Content ↑
Clearance from Buildings to low, medium and high voltage lines
Voltage Description Distance
Low & Medium
Voltage
Flat roof, open balcony, verandah roof ,When
the line passes above the building a vertical
2.5 Meter
clearance from the highest point
Low & Medium
Voltage
Line passes adjacent to the building a
horizontal clearance from the nearest point
1.2 Meter
Low & Medium
Voltage
Line passes above the building a vertical
clearance
2.5 Meter
Low & Medium
Voltage
Line passes adjacent the building a Horizontal
clearance
1.2 Meter
11 KV to 33 KV Line passes above or adjacent to any
building or part of a building
3.7 Meter
Above 33 KV Line passes above or adjacent to any
building or part of a building
3.7+(0.3 for every
additional 33 KV )
Up to 11 KV The horizontal clearance between the nearer
conductor and any part of such building
1.2 Meter
11 KV to 33 KV The horizontal clearance between the nearer
conductor and any part of such building
2.0 Meter
Above 33 KV The horizontal clearance between the nearer
conductor and any part ofsuch building
2.0 + (0.3 for every
additional 33 KV )
Go to Content ↑
Clearance above ground at the lowest conductor
Voltage Description Distance
Low & Medium Voltage Across a street 5.8 Meter
High Voltage Across a street 6.1 Meter
Low & Medium Voltage Along a street 5.5 Meter
High Voltage Along a street 5.8 Meter
Low & Medium Voltage Elsewhere than along or across any
street
4.0 Meter
High Voltage Elsewhere than along or across any
street
5.2 Meter
33 KV & EHV Clearance above ground(Add 0.3 Meter
for every 33 KV Volts in 5.2 Meter)
Min 6.1 Meter
Go to Content ↑
Vertical Clearance at Middle of Span
Span Vertical Clearance (At Middle of Span)
200 Meter 4.0 Meter
300 Meter 5.5 Meter
400 Meter 7.0 Meter
500 Meter 8.5 Meter
Go to Content ↑
Safety Clearance from Live Part in Outdoor Substation
KV Safety Working Clearance
12 KV 2.6 Meter
36 KV 2.8 Meter
72.5 KV 3.1 Meter
145 KV 3.7 Meter
220 KV 4.3 Meter
400KV 6.4 Meter
800 KV 10.3 Meter
Go to Content ↑
Lying of Telecommunication Cables with Power Cables (>33 kV)
Cable Min. Distance
Power cable of voltage exceeding 33 kV shall be laid Min 1.2 Meter depth
Underground telecommunication cable shall be with underground power
cable of voltage exceeding 33 kV.
Min 0.6 Meter
Separate from Power
Cable
Go to Content ↑
Safe approach limits for people
Voltage 214V to
415 KV
11KV 33KV 66KV 132KV 275KV
Person using manually operated tool 1.3
Meter
2.0
Meter
3.0
Meter
4.0
Meter
5.0
Meter
6.0
Meter
Person using power operated tool 3.0
Meter
3.0
Meter
3.0
Meter
4.0
Meter
5.0
Meter
6.0
Meter
