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diwan jafar khan husain
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Join Date: Feb 2009
Location: Doha Qatar
Posts: 9

For 11kV Dist Network, Earth Rod Required for Grounding Manholes Rebar and Metal

10/05/2011 8:56 AM

We used 120 sqmm bare embeded copper earth conductor parallel to 11kv cable duct banks for grounding the cable supports and Manhole accessories this conductor grounded at main substation and secondary substations. Is it required the earth rod at each manholes to ground the cable supports and metal accessories at each manholes.
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TonyS
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United Kingdom - Member - New Member

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Location: Resting under the Major Oak
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#1

Re: for 11kv Dist network, earth rod required for grounding Manholes rebar and metal

10/05/2011 5:56 PM

UK practise is earth at each joint. Check your local codes.

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KJK/USA
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United States - Member - Member Engineering Fields - Electrical Engineering - Electrical Construction

Join Date: Apr 2010
Location: Mid Western USA - The Corn Belt
Posts: 1439
Good Answers: 58
#2

Re: for 11kv Dist network, earth rod required for grounding Manholes rebar and metal

10/06/2011 12:21 PM

Try this

and this

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