Technical standards for Construction Regulations, 2022
Resolution By
CEA
Notification No. and date
CEA-TH-17/1/2021 dated 23rd December, 2022
Objectives
For specifying technical standards for construction of electric lines
Regulations called as
Central Electricity Authority (Technical Standards for Construction of Electrical Plants and Electric Lines) Regulations, 2022
Routing of Transmission Line
"1.The Owner shall arrange all required consents/approvals including civil aviation, road, river, rail, canal, power line crossings and environmental and forest clearances etc. from the concerned authorities.
[Clause 89.3]
2. The Owner in accordance with the requirements of construction shall arrange right of way and way leave clearance; Provided that compensation for right of way and way leaves shall be given as per applicable law, rules and regulations, guidelines/directives of local administrative/revenue authorities. [Clause 89.4]
3. The route of the electric line shall be as short as possible.
4. The routing of an electric line shall normally be avoided through following areas:
(a) Protected and reserved forest.
(b) National Parks and Wild Life Sanctuaries.
(c) Restricted areas such as civil and military airfields and care shall be taken to avoid aircraft landing approaches.
(d) Educational institutions, large habitations and densely populated areas.
(e) Rough and difficult country side, and natural obstructions, fruit gardens, lakes, rivers etc.
(f) The electric line shall normally not cross over cremation grounds and shall be far off from slaughterhouses and garbage dumping grounds to prevent interruptions by bird hits.
5. The electric line shall be close to a road for approach during construction and ease of maintenance.
[Clause 92]
"
[Clause 89.3]
2. The Owner in accordance with the requirements of construction shall arrange right of way and way leave clearance; Provided that compensation for right of way and way leaves shall be given as per applicable law, rules and regulations, guidelines/directives of local administrative/revenue authorities. [Clause 89.4]
3. The route of the electric line shall be as short as possible.
4. The routing of an electric line shall normally be avoided through following areas:
(a) Protected and reserved forest.
(b) National Parks and Wild Life Sanctuaries.
(c) Restricted areas such as civil and military airfields and care shall be taken to avoid aircraft landing approaches.
(d) Educational institutions, large habitations and densely populated areas.
(e) Rough and difficult country side, and natural obstructions, fruit gardens, lakes, rivers etc.
(f) The electric line shall normally not cross over cremation grounds and shall be far off from slaughterhouses and garbage dumping grounds to prevent interruptions by bird hits.
5. The electric line shall be close to a road for approach during construction and ease of maintenance.
[Clause 92]
"
Conductors
"1. The transmission line shall be designed and constructed to give a life of not less than thirty five years. [Clause 84(2)]
2. The size of the conductor shall depend upon the voltage regulation, factor of safety, power to be transmitted, length of line, line voltage and mechanical strength desired. [Clause 100]
3. Minimum two conductors per phase for 400 kV AC; four conductors per phase for ± 500 kV HVDC and 765 kV single circuit AC; six conductors per phase for 765 kV Double Circuit AC and ± 800kV HVDC; and eight conductors per phase for 1200 kV AC shall be used to meet the corona and Radio Interference requirement. [Clause 85(2)]
"
2. The size of the conductor shall depend upon the voltage regulation, factor of safety, power to be transmitted, length of line, line voltage and mechanical strength desired. [Clause 100]
3. Minimum two conductors per phase for 400 kV AC; four conductors per phase for ± 500 kV HVDC and 765 kV single circuit AC; six conductors per phase for 765 kV Double Circuit AC and ± 800kV HVDC; and eight conductors per phase for 1200 kV AC shall be used to meet the corona and Radio Interference requirement. [Clause 85(2)]
"
Transmission line construction
"1. The design and construction of the electric lines shall comply with the relevant IS.
2. The system shall be constructed so as to ensure permissible voltage levels, improvement of reliability and security of power supply and improvement in quality of supply.
3. Multi-circuit multi-voltage lines shall be adopted by the owner as per requirement.
4. Extension of existing lines shall be carried out after ensuring that the limits of voltage variations on the lines are not exceeded.
5. The reliability and security of supply shall be improved by use of sectionalizers, auto re-closers, ring main units and fault passage indicators as per techno economic considerations."
2. The system shall be constructed so as to ensure permissible voltage levels, improvement of reliability and security of power supply and improvement in quality of supply.
3. Multi-circuit multi-voltage lines shall be adopted by the owner as per requirement.
4. Extension of existing lines shall be carried out after ensuring that the limits of voltage variations on the lines are not exceeded.
5. The reliability and security of supply shall be improved by use of sectionalizers, auto re-closers, ring main units and fault passage indicators as per techno economic considerations."