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Topic Title: EMMA SHAW CASE
Topic Summary: Result of the Court case
Created On: 31 March 2014 04:35 pm
Status: Read Only
Linear : Threading : Single : Branch
 EMMA SHAW CASE   - John Peckham - 31 March 2014 04:35 pm  
 EMMA SHAW CASE   - John Peckham - 31 March 2014 05:19 pm  
 EMMA SHAW CASE   - OMS - 31 March 2014 05:23 pm  
 EMMA SHAW CASE   - AJJewsbury - 31 March 2014 05:26 pm  
 EMMA SHAW CASE   - John Peckham - 31 March 2014 05:30 pm  
 EMMA SHAW CASE   - impvan - 31 March 2014 05:31 pm  
 EMMA SHAW CASE   - rocknroll - 31 March 2014 05:46 pm  
 EMMA SHAW CASE   - perspicacious - 31 March 2014 06:02 pm  
 EMMA SHAW CASE   - jcm256 - 31 March 2014 06:03 pm  
 EMMA SHAW CASE   - aligarjon - 31 March 2014 08:21 pm  
 EMMA SHAW CASE   - jcm256 - 31 March 2014 08:53 pm  
 EMMA SHAW CASE   - aligarjon - 31 March 2014 10:26 pm  
 EMMA SHAW CASE   - sparkingchip - 31 March 2014 11:54 pm  
 EMMA SHAW CASE   - antric2 - 01 April 2014 12:40 am  
 EMMA SHAW CASE   - Zoro - 01 April 2014 09:23 am  
 EMMA SHAW CASE   - davezawadi - 01 April 2014 10:57 am  
 EMMA SHAW CASE   - OMS - 01 April 2014 11:17 am  
 EMMA SHAW CASE   - mapj1 - 01 April 2014 12:41 am  
 EMMA SHAW CASE   - antric2 - 01 April 2014 12:46 am  
 EMMA SHAW CASE   - aligarjon - 01 April 2014 08:07 am  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 09:15 am  
 EMMA SHAW CASE   - weirdbeard - 01 April 2014 03:27 pm  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 11:15 am  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 11:36 am  
 EMMA SHAW CASE   - OMS - 01 April 2014 12:23 pm  
 EMMA SHAW CASE   - phantom9 - 01 April 2014 01:14 pm  
 EMMA SHAW CASE   - OMS - 01 April 2014 01:43 pm  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 01:22 pm  
 EMMA SHAW CASE   - davezawadi - 01 April 2014 02:14 pm  
 EMMA SHAW CASE   - ennel - 01 April 2014 07:07 pm  
 EMMA SHAW CASE   - Zoro - 02 April 2014 10:20 am  
 EMMA SHAW CASE   - weirdbeard - 01 April 2014 03:21 pm  
 EMMA SHAW CASE   - OMS - 01 April 2014 03:28 pm  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 03:15 pm  
 EMMA SHAW CASE   - AJJewsbury - 01 April 2014 03:27 pm  
 EMMA SHAW CASE   - John Peckham - 01 April 2014 03:36 pm  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 09:05 am  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 09:10 am  
 EMMA SHAW CASE   - OMS - 02 April 2014 10:16 am  
 EMMA SHAW CASE   - sparkingchip - 02 April 2014 12:00 pm  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 06:57 pm  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 09:15 am  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 09:21 am  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 09:38 am  
 EMMA SHAW CASE   - mapj1 - 02 April 2014 10:26 am  
 EMMA SHAW CASE   - OMS - 02 April 2014 12:06 pm  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 12:14 pm  
 EMMA SHAW CASE   - mapj1 - 02 April 2014 01:20 pm  
 EMMA SHAW CASE   - OMS - 02 April 2014 01:50 pm  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 03:04 pm  
 EMMA SHAW CASE   - OMS - 02 April 2014 04:13 pm  
 EMMA SHAW CASE   - GeoffBlackwell - 02 April 2014 04:22 pm  
 EMMA SHAW CASE   - rocknroll - 02 April 2014 04:26 pm  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 05:50 pm  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 06:36 pm  
 EMMA SHAW CASE   - Zuiko - 02 April 2014 07:02 pm  
 EMMA SHAW CASE   - geoffsd - 02 April 2014 07:33 pm  
 EMMA SHAW CASE   - OMS - 02 April 2014 08:24 pm  
 EMMA SHAW CASE   - phantom9 - 02 April 2014 11:38 pm  
 EMMA SHAW CASE   - mawry - 03 April 2014 02:39 pm  
 EMMA SHAW CASE   - briandoherty - 06 April 2014 06:09 pm  
 EMMA SHAW CASE   - Zs - 07 April 2014 07:27 pm  
 EMMA SHAW CASE   - mawry - 08 April 2014 11:13 am  
 EMMA SHAW CASE   - mikejumper - 08 April 2014 07:46 pm  
 EMMA SHAW CASE   - napitprofessional - 09 April 2014 12:06 am  
 EMMA SHAW CASE   - Zoro - 09 April 2014 10:50 am  
 EMMA SHAW CASE   - napitprofessional - 09 April 2014 02:01 pm  
 EMMA SHAW CASE   - AJJewsbury - 02 April 2014 08:23 pm  
 EMMA SHAW CASE   - Parsley - 02 April 2014 10:30 pm  
 EMMA SHAW CASE   - electricman - 02 April 2014 11:06 pm  
 EMMA SHAW CASE   - ericmark - 03 April 2014 02:37 pm  
 EMMA SHAW CASE   - Zoro - 04 April 2014 09:20 am  
 EMMA SHAW CASE   - John Peckham - 06 April 2014 03:53 pm  
 EMMA SHAW CASE   - electricman - 08 April 2014 11:19 pm  
 EMMA SHAW CASE   - AJJewsbury - 08 April 2014 11:23 pm  
 EMMA SHAW CASE   - mikejumper - 09 April 2014 04:42 pm  
 EMMA SHAW CASE   - OMS - 09 April 2014 05:14 pm  
 EMMA SHAW CASE   - psychicwarrior - 10 April 2014 08:56 am  
 EMMA SHAW CASE   - napitprofessional - 11 April 2014 05:54 pm  
 EMMA SHAW CASE   - davezawadi - 12 April 2014 11:46 am  
 EMMA SHAW CASE   - sparkingchip - 12 April 2014 12:33 pm  
 EMMA SHAW CASE   - John Peckham - 12 April 2014 01:21 pm  
 EMMA SHAW CASE   - weirdbeard - 12 April 2014 06:28 pm  
 EMMA SHAW CASE   - sparkingchip - 12 April 2014 06:51 pm  
 EMMA SHAW CASE   - weirdbeard - 12 April 2014 08:11 pm  
 EMMA SHAW CASE   - sparkingchip - 12 April 2014 10:57 pm  
 EMMA SHAW CASE   - phantom9 - 12 April 2014 04:02 pm  
 EMMA SHAW CASE   - Grobbyman - 12 April 2014 05:44 pm  
 EMMA SHAW CASE   - Zoro - 12 April 2014 06:11 pm  
 EMMA SHAW CASE   - Fm - 12 April 2014 11:26 pm  
 EMMA SHAW CASE   - sparkingchip - 12 April 2014 11:37 pm  
 EMMA SHAW CASE   - Fm - 12 April 2014 11:40 pm  
 EMMA SHAW CASE   - sparkingchip - 13 April 2014 12:04 am  
 EMMA SHAW CASE   - phantom9 - 13 April 2014 09:25 am  
 EMMA SHAW CASE   - OMS - 14 April 2014 10:13 am  
 EMMA SHAW CASE   - potential - 14 April 2014 10:32 am  
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 01 April 2014 09:15 am
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AJJewsbury

Posts: 17795
Joined: 13 August 2003

The installation had been energised without any testing and the fault current had blown away part of the screw and CPC. This was verified by forensic examination at the HSE laboratories. This left a high resistance fault from the line conductor to the metal studwork.

Interesting that it "blow away" (vaporized?) part of the c.p.c. before the MCB opened - given the requirements of section 543 would that have been expected? If the c.p.c. had remained intact in this case, it would seem that it would have been impossible to reset the MCB and the fault would have been apparent.

Perhaps we should question the idea of faults of negligible impedance?

- Andy.
 01 April 2014 03:27 pm
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weirdbeard

Posts: 3116
Joined: 26 September 2011

Originally posted by: AJJewsbury

Interesting that it "blow away" (vaporized?) part of the c.p.c. before the MCB opened - given the requirements of section 543 would that have been expected? If the c.p.c. had remained intact in this case, it would seem that it would have been impossible to reset the MCB and the fault would have been apparent.


.


Just conjecture on my part, but when they energised the installation the first time, they might not have switched on the immersion switch - then the immersion was connected and switched on by a plumber, who could have switched up the breaker a couple of times until it held, leading to the burning away of the cpc?

Easy (repeated) user resetting - one of the downsides of MCBs? Might not have happened if it was a rewirable fuse?

-------------------------
:beer)
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