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60 amp multistrand 3 core mains cable??


Chris Wilson

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Another question re my TIG welder. I have, thanks to kind folk on here,

sorted out a proper 60 amp single phase supply in my workshop. I have also

bought, from Farnells, some proper industrial 60 amp 3 pin 240 volt single

pahse plugs and sockets. One is a wall socket, plus 2 plugs, and one

trailing socket, the idea being to make up an extension lead if I need the

welder more than the supplied 15 foot lead length away from the wall

socket. The welder has a black rubber sheather 3 core cable on it, with an

ouytside diameter of about 16mm. the conductors, over the insulations are

about 6mm each. hefty stuff.... Where can I buy about another 20 foot of

this stuff please? Thanks. The cable sections of the likes of Farnells and

RS Components are bewilderingly complex and huge for the likes of myself!

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armoured cable like SWA cable is no good for an extension lead, sounds to me like you need something like...

 

3core SY armoured 10mm.sq cable, 6mm.sq seems a bit low for a 60amp single phase welder. you could find it in rs but from my experience they are overpriced for cable. you'd be much better looking in the yellow pages for a local electrical wholesalers, they always tend to stock SY cable as its very popular in industry installation.

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Thanks Bob, it's not armoured, just ordinary electric fire type 3 core flex, but of rather larger diameter! It's probably quite specialised, i can get (have got) hefty armoured cable for doing the underground installation, this is just for an extension lead. Cheers for the links though, appreciated.

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That'd be great, thanks. I can take a digi pic of the existing flex with something as size comparator if it helps?

 

im a electrical engineer, it'll b SY cable (its armoured with stranded wire) so its still flexible. go for 3core with10mm.sq conductors, that should be ok for 60amps

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im a electrical engineer, it'll b SY cable (its armoured with stranded wire) so its still flexible. go for 3core with10mm.sq conductors, that should be ok for 60amps

 

The stuff coming out of the welder itself, terminating in the 3 pin mains plug is most definitely NOT armoured, it's just rubber sheathed 3 core, I can easily tie a neat knot in it. It's about 15 foot long, I just want another length of the same or similar, as an extension. Armoured will surely be heavy, stiff and need special termination, won't it? Thanks.

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The stuff coming out of the welder itself, terminating in the 3 pin mains plug is most definitely NOT armoured, it's just rubber sheathed 3 core, I can easily tie a neat knot in it. It's about 15 foot long, I just want another length of the same or similar, as an extension. Armoured will surely be heavy, stiff and need special termination, won't it? Thanks.

 

thick rubber is it?

its kind of common practice (for me anyway)to make extension leads, especially 3phase, out of this SY stuff, makes it a bit more robust to damage, unlike rubber cable which can be easily damaged and cores exposed. its not heavy or difficult to terminate no, its just as flexible as normal cable and just as easy to terminate, the armour is only steel braiding. You'll prob find its cheaper than simiar rubber cable too. Do a search on the net for more info on it if your unsure.

thats what id use anyway.

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Sorry Chris - been off the board for a couple of days.

 

The leccy guy said this:

 

Depends what you're using it for, and how long the cable's going to be.

 

If you want exactly that (for a very chunky extension lead) you'll need a supplier to the entertainments industry -

best prices at http://www.10outof10.co.uk/acatalog/index.html?http%3A//www.10outof10.co.uk/acatalog/10_out_of_10_On_Line_Mains_Cable_25.html&CatalogBody - 10mm 3 core is £3.15 per metre

 

However if you're actually installing it somewhere armoured cable e.g. http://www.tlc-direct.co.uk/Products/SW6slash2.html knocks in around £1.50 per metre (however you'd need to get it terminated a junction box before you could use it .......)

 

Does that help?

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  • 15 years later...
On 12/20/2005 at 10:30 PM, Chris Wilson said:

 

The stuff coming out of the welder itself, terminating in the 3 pin mains plug is most definitely NOT armoured, it's just rubber sheathed 3 core, I can easily tie a neat knot in it. It's about 15 foot long, I just want another length of the same or similar, as an extension. Armoured will surely be heavy, stiff and need special termination, won't it? Thanks.

CW is still stood with his neat knot, in hand 😂.

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