How much earthing require for h.t.22 k.v. cable in coming side
& out going & 22 lighting arrest or,22 k.v.D.o. &
A.B. switch.
Answer / tejeswara rao paidi
The earthing requirements for a high tension (HT) 22 kV cable, lighting arrestor, disconnecting switch (D.O.), and air break (A.B.) switch are governed by specific standards and guidelines.
In India, the **IS: 3043 - 1987** standard provides the **Code of Practice for Earthing**¹. This standard outlines the general principles and detailed methodologies for designing and implementing earthing systems for electrical installations. It includes factors such as the resistance of the electrode, contact resistance between the electrode and the soil, and the resistance of the soil from the electrode surface outward¹.
For specific equipment like a 22 kV cable, the guidelines for use of underground cable systems and overhead conductor systems by the Central Electricity Authority could be referred².
However, the exact earthing requirements can vary based on factors such as the type of installation, soil resistivity, fault current levels, and safety considerations. Therefore, it's recommended to consult with a qualified electrical engineer or the relevant electrical authority for the specific earthing requirements for your installation.
Please note that this information is based on general guidelines and standards, and may not be applicable in all situations or jurisdictions. Always consult with a qualified professional or the relevant authorities for specific advice.
Source: Conversation with Bing, 28/1/2024
(1) Indian Standard: CODE OF PRACTICE FOR EARTHING - Law.Resource.Org. https://law.resource.org/pub/in/bis/S05/is.3043.1987.html.
(2) GUIDELINES FOR USE OF UNDER GROUND CABLE SYSTEM AND OVERHEAD CONDUCTOR .... https://cea.nic.in/wp-content/uploads/2020/04/b.pdf.
(3) MATERIAL SPECIFICATIONS CELL - महावितरण. https://www.mahadiscom.in/supplier/wp-content/uploads/2020/01/Metering-Cubicle-1122-kV33kV-29.08.2019-FINAL.pdf.
(4) TECHNICAL SPECIFICATION FOR XLPE POWER CABLE - महावितरण. https://www.mahadiscom.in/supplier/wp-content/uploads/2018/08/HTXLPESPEC2006.pdf.
(5) TECHNICAL SPECIFICATION FOR 33/132/220 KV H.T. XLPE POWER CABLE - OPTCL. https://optcl.co.in/writereaddata/Tender/150619110614E31-33-132-220KV_XLPE_CABLE_SPEC_12042019.pdf.
if any doubts regarding technicality refer the url mentioned
Is This Answer Correct ? | 0 Yes | 0 No |
What do you mean by creepage distance?
why capacitor is not discharged phase to body
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
What is the required bending radius requied at the time of cable laying?
what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv
If there is unit power factor in a power house and a capacitor bank used in a factory at resistive load . In this case, will there leading power factor in power house across that factory.
what is V0/V rating of cable
what are types of servo motors
in india why the generating voltage is like 11kv,22kv etc
For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?
As Electricity Generates in MW I w'd like to know What are the factors we have to consider regarding the transmission of electricity from generation station to Public uses(230 V)
Is it necessary to install Lighting Arrester on both side side (i.e HT and LT) of Transformer in a transmission substation? if yes Why on both side?