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Topic Title: Undersized cables
Topic Summary: Atlas Kablo
Created On: 03 October 2017 01:21 PM
Status: Read Only
Linear : Threading : Single : Branch
 Undersized cables   - rogerbryant - 03 October 2017 01:21 PM  
 Undersized cables   - KFH - 03 October 2017 02:29 PM  
 Undersized cables   - AJJewsbury - 03 October 2017 02:30 PM  
 Undersized cables   - broadgage - 03 October 2017 04:03 PM  
 Undersized cables   - Zoomup - 08 October 2017 09:14 AM  
 Undersized cables   - broadgage - 08 October 2017 09:33 AM  
 Undersized cables   - sparkingchip - 03 October 2017 03:55 PM  
 Undersized cables   - sparkingchip - 03 October 2017 04:04 PM  
 Undersized cables   - davezawadi - 04 October 2017 10:49 AM  
 Undersized cables   - mikejumper - 04 October 2017 02:06 PM  
 Undersized cables   - Zoomup - 08 October 2017 09:18 AM  
 Undersized cables   - davidwalker2 - 04 October 2017 04:26 PM  
 Undersized cables   - Zoomup - 08 October 2017 09:19 AM  
 Undersized cables   - davidwalker2 - 04 October 2017 04:30 PM  
 Undersized cables   - AJJewsbury - 04 October 2017 04:46 PM  
 Undersized cables   - rogerbryant - 05 October 2017 06:55 AM  
 Undersized cables   - broadgage - 05 October 2017 09:40 AM  
 Undersized cables   - broadgage - 05 October 2017 11:06 AM  
 Undersized cables   - Zoomup - 08 October 2017 09:21 AM  
 Undersized cables   - Zoomup - 08 October 2017 09:25 AM  
 Undersized cables   - AJJewsbury - 08 October 2017 09:42 AM  
 Undersized cables   - Zoomup - 08 October 2017 09:58 AM  
 Undersized cables   - Zoomup - 08 October 2017 09:48 AM  
 Undersized cables   - AJJewsbury - 08 October 2017 10:14 AM  
 Undersized cables   - sparkingchip - 08 October 2017 10:45 AM  
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 04 October 2017 10:49 AM
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davezawadi

Posts: 3958
Joined: 26 June 2002

It is scaremongering in my opinion too. Whilst there is a risk of higher conductor temperatures, the difference will not be very large, and suggesting this is a serious fire risk is ridiculous. A 20% reduction in conductor area does not lead to 20% greater temperature rise, and even if it did then 84 degrees C maximum will not cause any kind of problem except accelerated degradation of the PVC, which happens anyway.

If BASEC does not realise this too, they should not be in business!
However the BBC should be sanctioned for poor reporting, exaggeration and political bias now seem to be the order of the day!

-------------------------
David
BSc CEng MIET
david@ZawadiSoundAndLighting.co.uk
 04 October 2017 02:06 PM
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mikejumper

Posts: 2466
Joined: 14 December 2006

I'm not convinced the fire risk is as great as the 'experts' make out.
 08 October 2017 09:18 AM
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Zoomup

Posts: 3435
Joined: 20 February 2014

Originally posted by: davezawadi

It is scaremongering in my opinion too. Whilst there is a risk of higher conductor temperatures, the difference will not be very large, and suggesting this is a serious fire risk is ridiculous. A 20% reduction in conductor area does not lead to 20% greater temperature rise, and even if it did then 84 degrees C maximum will not cause any kind of problem except accelerated degradation of the PVC, which happens anyway.



If BASEC does not realise this too, they should not be in business!

However the BBC should be sanctioned for poor reporting, exaggeration and political bias now seem to be the order of the day!


I disagree, if a cable is sold as a certain size then it should legally be that physical size. It is not up to the cable maker to assume a certain "diversity". 1.0mm2 cable should be in fact 1.0mm2 C.S.A.

Would you like to get short changed at the petrol pumps and only get 0.8 litres instead of the declared 1.0 litre for which you pay? Or get a water filled fire extinguisher only half filled with water?

Z.
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