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Try finding a copy!I’m quite happy with that table, though it might be better to use a copy that’s been updated for Cmin.
Discuss Can I use the sheath of the SWA as the CPC in this example? in the UK Electrical Forum area at ElectriciansForums.net
Try finding a copy!I’m quite happy with that table, though it might be better to use a copy that’s been updated for Cmin.
It’s about 95mm2Apologies if I’m hijacking @happyhippydad, isn’t there a certain swa cable size that most all cables under that size would comply for use of swa armour as cpc?....
Two core, 120mm starts to become the size where Table 54G may not be complied with. The three and four cores are larger than that but without looking can't remember.Apologies if I’m hijacking @happyhippydad, isn’t there a certain swa cable size that most all cables under that size would comply for use of swa armour as cpc?....
YepApologies if I’m hijacking @happyhippydad, isn’t there a certain swa cable size that most all cables under that size would comply for use of swa armour as cpc?....
With regards that table... How can he just give a fixed 'yes' or 'no' dependant solely on the CSA of the cable (and the amount of cores)?
The table he bases it on 54G is now table 54.7 on page 198 of the BBB. That table uses the value of K1, K2 and S (assuming the CSA of the line conductor is <16mm as in my example). All of these are variables not constants so you cant give fixed values based solely on CSA of the conductors of the SWA.
For example... K1 and K2 vary depending on the cable being thermoplastic or theromosetting and even more of a variable is S as this depends on I and t??
Edit... I've read the tables a little more now and see there are different tables for thermoplastic/thermosetting etc so that just leaves S?
Reply to Can I use the sheath of the SWA as the CPC in this example? in the UK Electrical Forum area at ElectriciansForums.net
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