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Topic Title: EIC completion
Topic Summary: Supply parameters
Created On: 25 November 2012 12:38 PM
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 25 November 2012 12:38 PM
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IanLloyd

Posts: 63
Joined: 17 April 2002

When completing the 'Supply Characteristics and Earthing Arrangements' section of the EIC, for an industrial site with transformers supplying distribution and sub-distribution, what supply characteristics should be enetered? e.g. for a transformer supplying a switchboard #1 which then supplies a sub-distribution switchboard, #2, which in turn supplies a local distribution board, which supply characteristics should be entered for the local distribution board - those for the transformer/switchboard #1, switchboard #2 or the switch details supplying the DB (with whatever protective device parameters are fitted such as a fuse, MCCB or mcb etc.)?
 25 November 2012 12:56 PM
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MrP

Posts: 843
Joined: 24 March 2006

The supply characteristics at the origin must be recorded whether or not your coming off a board down stream
A photo copy of previous cert which contains supply characteristics stating where information obtained
On your cert it will say see attached sheet job done

MrP home in 24days but not counting
 25 November 2012 01:11 PM
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Robotman

Posts: 2
Joined: 07 November 2012

Thats how we do it. The protective device for the downstreem boards is recorded on the test sheet later along with the ZE for that board.
 25 November 2012 02:00 PM
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IanLloyd

Posts: 63
Joined: 17 April 2002

Thought so, thanks both.
 26 November 2012 04:48 PM
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Delbot321

Posts: 77
Joined: 06 November 2012

Method of eaerthing directly off transformer will be TNCS (PNB) assuming they are the only customer off it. However the bonding requirements don't need to meet PME standard, just the same as all other earthing arrangements in the regs.
 26 November 2012 05:15 PM
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Parsley

Posts: 1032
Joined: 04 November 2004

UKPN's earthing manual states the customer's electrical installation requirements are exactly the same as for PME where PNB is present.

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