View the thread, titled "Old Twin and earth conductors and cpc?" which is posted in Australia on Electricians Forums.

E

elecypwn

Hello, This is the first time iv came across anything like this and i went to quote this fuseboard for a upgrade yesterday and had a look inside and did all the required testing and inspecting and said id get back to them with a date when i can do the installation but came across one slight snag, the current cable that has been used is Twin&earth but with one difference it has a very shiney but soft AL conductor and CPC, is this installation suitable to be terminated to Brass termination bars/protective devices? if not will there be any 17th edition units that support this type of wiring or will it be sufficient to use a board that has AL termination bars/screws? or is it a rewire job/walk away.

You can slightly see the colour of the cable on the neutral side and also on the second picture of the earth bar, any advice would be appreciated cheers.


IMG_0170.jpgIMG_0171.jpg
 
Anybody remember 'copper clad' (copper clad alluminium) in the 70's. Bulky stuff. Came in for a short time because of the copper shortage. Came across it a few times but wouldn't use it. Never seem to find it in old installations these days.
 
Remember too, that ali conductors have about 75% the ccc of copper for the same size (notice you won't find ccc for ali listed in regs!). You'll need to take this into account.
 

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