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Topic Title: Disconnection Times
Topic Summary: Special Locations
Created On: 06 October 2010 08:27 PM
Status: Post and Reply
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06 October 2010 08:27 PM
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12216

Posts: 45
Joined: 22 August 2010

Hi can anyone confirm if there is a reg that exists for the disconnection of a circuit fed by an MCB in a special location with a disconnection time of 0.2s looked in the regs book 17th 2008 & GN7 and cant find it anywhere if it exist please would give us the reg ref.

(the above query is for a MCB, fully aware of the use of RCD)

Regards
Martin
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06 October 2010 09:57 PM
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Avatar for kj scott.
kj scott

Posts: 2050
Joined: 02 April 2006

There is no requirement for 0.2 sec disconnection; except table 41.1 for TT installations. Final circuits up to and including 32A. This is not specific to bathrooms though.

-------------------------
 http://www.niceic.biz
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06 October 2010 10:20 PM
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12216

Posts: 45
Joined: 22 August 2010

Thats cleared that on up.

many thanks KJ

regards
martin
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07 October 2010 02:24 PM
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AJJewsbury

Posts: 9806
Joined: 13 August 2003

There used to be 0.2s disconnection for some special locations in previous editions of the regs.
- Andy.
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IET » Wiring and the regulations » Disconnection Times

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