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Topic Title: Chelmsford Sub Station Fire
Topic Summary: Another fine for UK Power Networks
Created On: 06 January 2013 12:57 PM
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 06 January 2013 12:57 PM
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505diff

Posts: 145
Joined: 20 March 2006

I'm sure in the good old days, this was very rare, it seems now most REC employees know of someone taking the company to court for injuries at work due to old knackered equipment.

This poor chap was not far off retirement too.

http://www.bbc.co.uk/news/uk-england-essex-20915663
 06 January 2013 01:54 PM
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Legh

Posts: 3489
Joined: 17 December 2004

I'm baffled by this....
Surely the DNO would have had the correct H&S procedures in place?
This introduces other questions regarding competence verses market pressures in the industry........

Legh

-------------------------
Why do we need Vernier Calipers when we have container ships?

http://www.leghrichardson.co.uk

"Science has overcome time and space. Well, Harvey has overcome not only time and space - but any objections."
 06 January 2013 02:09 PM
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alancapon

Posts: 5772
Joined: 27 December 2005

Originally posted by: Legh
. . . This introduces other questions regarding competence verses market pressures in the industry . . .

Not really. The electricity industry has a wide range of equipment installed on its sites, ranging from equipment that has been in service for a number of years, to new equipment. It is well known (within the industry and by companies offering life insurance) that being "operational" in the electricity supply industry is a high risk job. Sometimes the risks can be removed / minimised, and somethimes they cannot. A standard method of risk reduction (for example) is minimising the number of staff in the vicinity of HV switching operations - ideally to zero, by using remote switching from a Control Room / Control Centre.

Regards,

Alan.
 06 January 2013 02:48 PM
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Legh

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Originally posted by: alancapon

Originally posted by: Legh

. . . This introduces other questions regarding competence verses market pressures in the industry . . .


Not really. The electricity industry has a wide range of equipment installed on its sites, ranging from equipment that has been in service for a number of years, to new equipment. It is well known (within the industry and by companies offering life insurance) that being "operational" in the electricity supply industry is a high risk job. Sometimes the risks can be removed / minimised, and somethimes they cannot. A standard method of risk reduction (for example) is minimising the number of staff in the vicinity of HV switching operations - ideally to zero, by using remote switching from a Control Room / Control Centre.

Regards,

Alan.


I don't disagree, but LV tap changing appears to me to be a standard operational procedure where there is likely to be operational methods in place which would/should include all types of serviceable equipment in use.

Legh

-------------------------
Why do we need Vernier Calipers when we have container ships?

http://www.leghrichardson.co.uk

"Science has overcome time and space. Well, Harvey has overcome not only time and space - but any objections."
 06 January 2013 03:08 PM
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alancapon

Posts: 5772
Joined: 27 December 2005

Yes indeed, but tapchanging at 132/11kV is an automated process which under normal circumstances requires no manual input. The AP who was sent to site was investigating a problem with the tapchanger - whether it was stuck, or not receiving the correct signals from the control equipment as it was not correctly controlling the 11kV voltage. The problem is deciding roughly what is wrong with the faulty tapchanger and what precautions need to be in place before the investigation begins. In some scenarios you may want to isolate the outgoing side only, in some you may need to isolate both, and some you may not need any HV isolations at all.

Regards,

Alan.
 06 January 2013 05:03 PM
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slittle

Posts: 3523
Joined: 22 November 2007

I did see this in the local news a few days ago but out of respect for the guy and his family decided not to bring it up again.

That said, we all live with the risks every day.

Obviously those in Alan's business have at times greater risks than us the other side of the meter. unfortunately this chap paid the ultimate price and to be honest I believe the charges brought against UKPN where more to do with the fact that the HSE had to prosecute than the fact that UKPN didn't have a "safe system in place".

Stu
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