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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Cable Capacities - Self Build Wiki
I have only just found the self build wiki as a result of a link on
laminate flooring thread and have been having a browse: http://www.sbfaq.borpin.co.uk/dokuwiki/doku.php In the electrics section, regarding cable capacities it says: The current carrying capacity of typical cables a 6242Y T&E : 1.0mm2 14A 6181Y Single: 1.0mm2 11A Why is the capacity of the single significantly less than the T&E? I would have thought it would be the other way round as there is potentially twice the current flowing in the T&E cable and hence a higher heating effect. |
#2
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Cable Capacities - Self Build Wiki
wrote:
I have only just found the self build wiki as a result of a link on laminate flooring thread and have been having a browse: http://www.sbfaq.borpin.co.uk/dokuwiki/doku.php In the electrics section, regarding cable capacities it says: The current carrying capacity of typical cables a 6242Y T&E : 1.0mm2 14A 6181Y Single: 1.0mm2 11A Why is the capacity of the single significantly less than the T&E? I would have thought it would be the other way round as there is potentially twice the current flowing in the T&E cable and hence a higher heating effect. current capacity depends on method of installation. (Earth impedance may come into it too.) NT |
#3
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Cable Capacities - Self Build Wiki
wrote: I have only just found the self build wiki as a result of a link on laminate flooring thread and have been having a browse: http://www.sbfaq.borpin.co.uk/dokuwiki/doku.php In the electrics section, regarding cable capacities it says: The current carrying capacity of typical cables a 6242Y T&E : 1.0mm2 14A 6181Y Single: 1.0mm2 11A Why is the capacity of the single significantly less than the T&E? I would have thought it would be the other way round as there is potentially twice the current flowing in the T&E cable and hence a higher heating effect. I reckon it's a mistake. Look at the other sizes of wi 6242Y T&E 6181Y Single 1.0mm2 14A 11A 1.5mm2 18A 17A 6 mm2 40A 41A 10mm2 53A 55A 16 mm2 70A 74A |
#4
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Cable Capacities - Self Build Wiki
In article ,
wrote: Why is the capacity of the single significantly less than the T&E? I would have thought it would be the other way round as there is potentially twice the current flowing in the T&E cable and hence a higher heating effect. The current flowing in line and neutral should be the same. Especially if you have an RCD. ;-) I'd say it's a typo. Unless you know what the conditions of use are they are the same according to my tables. Or even the TLC site. ;-) Of course singles are frequently bunched within conduit or trunking. -- *It sounds like English, but I can't understand a word you're saying. Dave Plowman London SW To e-mail, change noise into sound. |
#6
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Cable Capacities - Self Build Wiki
wrote in message ... I have only just found the self build wiki as a result of a link on laminate flooring thread and have been having a browse: http://www.sbfaq.borpin.co.uk/dokuwiki/doku.php In the electrics section, regarding cable capacities it says: The current carrying capacity of typical cables a 6242Y T&E : 1.0mm2 14A 6181Y Single: 1.0mm2 11A Why is the capacity of the single significantly less than the T&E? I would have thought it would be the other way round as there is potentially twice the current flowing in the T&E cable and hence a higher heating effect. It may be down to the fact the surface area of the single is less than 1/2 that of the flat twin. |
#7
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Cable Capacities - Self Build Wiki
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