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Topic Title: Time delay rcd
Topic Summary:
Created On: 26 March 2019 10:19 AM
Status: Read Only
Linear : Threading : Single : Branch
 Time delay rcd   - Baldyhugh - 26 March 2019 10:19 AM  
 Time delay rcd   - mapj1 - 26 March 2019 11:52 AM  
 Time delay rcd   - Baldyhugh - 26 March 2019 12:54 PM  
 Time delay rcd   - Weirdbeard2 - 26 March 2019 05:42 PM  
 Time delay rcd   - Alcomax - 26 March 2019 07:19 PM  
 Time delay rcd   - Baldyhugh - 26 March 2019 08:12 PM  
 Time delay rcd   - chrispearson - 26 March 2019 08:19 PM  
 Time delay rcd   - mapj1 - 26 March 2019 08:52 PM  
 Time delay rcd   - AJJewsbury - 28 March 2019 10:01 AM  
 Time delay rcd   - mapj1 - 28 March 2019 10:06 AM  
 Time delay rcd   - Weirdbeard2 - 28 March 2019 05:23 PM  
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 26 March 2019 10:19 AM
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Baldyhugh

Posts: 413
Joined: 01 June 2007

Hi all

I have a customer with a TP&N supply to a farm and have an rcd query that I would like some advice on. At the incomer is a TP&N distribution board with a 100mA rcd main switch. There is a single phase distribution circuit from this board to an outbuilding containing two consumer units with 100mA main switch in each. As you can guess, an earth fault in the outbuilding takes out both the rcd in the outbuilding and at the incomer position. To rectify this would it be acceptable to replace the 100mA TP&N rcd at the incoming position with a time delay version? Would this still provide adequate fault protection to the other circuits on the TP dist board?

Thanks
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