Jeff Davies
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What do you guys put on an eicr for imperial cables (stranded)and is there a table for sizes .cpc,s etc.
Imperial cable
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Its a good question because there isn't room to write the imperial sizes in the boxes. I've had a few crop up and I filled in as the equivalent metric size TBH.
1.00 mm sq was 1/.044 but is always rubber insulated , never seen that size in PVC .
1.5 mm sq. was 3/.029 I think the earth was 1.044.
2.5 mm sq. was 7/.029 Earthwire was 3/.029 (1.5)
4.00 mm sq was 7/044 Earth was probably 3/.029 (1.5)
6.00 mm sq. was 7/.052 ( I think) Earth probably 7/.029 ( 2.5)
10.00 mm sq was 7/.064 (I think) Earth no idea.
Larger sizes I can't remember . Anyway , speaking for myself , use the metric equivalent , no one will understand the imperials now ...only old pharts like Stepps & The Doc.
Not me of course.
1.00 mm sq was 1/.044 but is always rubber insulated , never seen that size in PVC .
1.5 mm sq. was 3/.029 I think the earth was 1.044.
2.5 mm sq. was 7/.029 Earthwire was 3/.029 (1.5)
4.00 mm sq was 7/044 Earth was probably 3/.029 (1.5)
6.00 mm sq. was 7/.052 ( I think) Earth probably 7/.029 ( 2.5)
10.00 mm sq was 7/.064 (I think) Earth no idea.
Larger sizes I can't remember . Anyway , speaking for myself , use the metric equivalent , no one will understand the imperials now ...only old pharts like Stepps & The Doc.
Not me of course.
I usually write the metric equivalent and in notes put down that its imperial equivalent size cable.
I can only ever remember the 1.5 and 2.5 sizes,
as for the earth sizes,
no idea,
The only one I'm sure about is 7/.029 which had a 3/.029 earth wire. It was great to work with , very flexible being stranded, didn't need three men to push a socket back against a box . I believe you can buy stranded 2.5 but not round here.
Jeff Davies
New member
Welcome to the forum Jeff, please hang around.
The attached is from the 13th I think it is the table you need.
View attachment From the 13th.pdf
The attached is from the 13th I think it is the table you need.
View attachment From the 13th.pdf
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That brought back some memories, trying to get 0.2” (37/.103) in to 185mm² lugs (nothing a hammer couldn’t cure).
I’d ripped an old Reyrolle HH board out and replaced it with a GE MiniForm board and reused the original PILC-SWA cables.
And that brought back memories of me and an apprentice in a cupboard the size of an airing cupboard with a 95mm² shaped 4 core, a 2 part hydraulic crimper (that leaked), a busbar and an MG DB. It was pretty cosy.
Jeff Davies
New member
I thought Stepps might have done a link to the 13th edition Regs ...after all he's still working to them :innocent
bloody cheek, :yellowcard
I am but a whippersnapper compared to thee Mr Dekeington
Yes I know Sorry mate ...couldn't resist it. :coat We all used to buy the "Guide to the 13th / 14th editions back then , never knew a sparks who had the "official" one. Heres one from the Evans Electric archive dept. Complete with coffee mug stain .
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