potacabins supplies

[cliffed]

Morn chaps,i know there been a lot of discussion on temp/permanent supplies 2 portacabins,jus done a pir test on a couple,they r supplied wiv 6mm 3c swa,of tncs supply,each cabin as its own rcd db.My problem is the main bonding conductor sizes, the main intake is a biggy,1600 amps & the main bonding is a 50mm cable.Now if they r using the tncs supply do they need 2 comply wiv a 50mm earth bond, & so does not comply wots your thinking.Why on earth,didnt they tt it,seen lots of instances like these,cheers.Jus another quickie,regarding above,when installing a new sub main wud this also apply,ie main bonding conductor size.So if installing a sub main from the same intake,a 16mm 3c protected wiv a 63 amp mcb would this also not comply.unless a 50mm main earth bond was also instaled wiv cable.Bye 4 now

 

[Knobhead]

c%d U repEt dat n eng pls

 

[QSGAZ]

Do me a favour and put your questions in bullet points or something like that, its just i dont quite know what your asking. If its portacabins just look at section 717 in the regs.

 

[ian.settle1]

Seems like the posting about using text speak has not been read by the OP of this posting:death:

 

[Guest123]

Need more info TBH.

Lots of possible scenarios here, such as type of building & use, location of buildings, construction of buildings etc etc.