The electrician may be referring to earth reading taken at the incoming supply. 0.35 Ohms is the maximum permitted ze reading for a TNC-S system , Just A guess though I afraid . Just going by the mentioned of Mains ,but not sure what the sockets have to do with this
I'm pretty sure that RCD protection was only require on socket outlets to be used outdoors back in 1991 and there was no requirement for RCD protection for cables less than 50mm deep in a wall I'm sure that came much later I think it was when the 17th came out in 2008
Also check what the connection is like on the driver some come with flex or tiny connection so you may need junction boxes , with 40 it could add a bit more cost
Thanks westward . The circuits are on rcbos so I'm sure they will start tripping when the pvc breaks down . I will report my findings .
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Yes your right .I should of said the cable is not suitable for the environment
Ok just to update I carried out an "insulation resistance test " :) across all cables and the lowest reading was between line and earth 545 meg at 500 volt so ok for now . Not sure what damage the water will do to the cable over time but just looks ruff to me .Thereis no mechanical protection...
Not to bad actually just wonder what the life span of Pvc in water is . Sending the mega down it tommorow to see how it fairing .it was installed 6 months ago
Water cooled twin and earth
Found this today supplying lights in a valet bay the rest of the install it nicely done . Not sur who thought using twin and earth in underground duct was a good idea
Sounds like someone working in the commercial sector fitted the consumers unit maybe had a load of spare mcbs on the van !! I would of thought disconnect time would be achieved as the cables runs would not be that long. Although the 32 amp circuits may be close to the maximum zs permitted...
1 write down what you agreed to inspected and test with the customer For example. inspection of all identified fix wiring and 25 % of accessories within the installation
2 write down the limitations you agreed with the customer before hand. For example the customer does not want you to do any...
Yes sorry my mistake I'm thinking of the Niceic ones. Maybe then the op could sign off the testing part. As long as the installer as signed his parts. Personally though I would not want to sign of someone's work even just the testing unless i had seen it installed at all stages and had good...
There is effectively 4 signatures required for a EIC the designer the installer the tester and the supervisor. This can be the same person if they have done all the work. But in your case if you are only doing the testing you can only sign that part of the cert . The problem I see is that the...
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