1) It happens all the time inside CUs.My biggest concern would be your plan to run live cores from the SWA to a switch inside the cabinet without any secondary sheathing.
2)
1) It happens all the time inside CUs.My biggest concern would be your plan to run live cores from the SWA to a switch inside the cabinet without any secondary sheathing.
Is that installation using the SWA as the main Earthing Conductor? If so, is that OK?Gland your SWA straight into a metalclad swichfuse like this.
I asumed that, but it seems that one of the cores of the SWA is being used as the Earthing Conductor for the installation - which is what I was commenting/asking about.No it's 3 core SWA with the armour earhted for mechanical protection.
I think you can probably deduce RF's answer to that from the picture he posted - in which the 'earth wire' is not only 'broken', but changes from being a G/Y single to being a core of the SWA.The 16mm earth wire from the cut out does it have to remain uncut right through to the consumer unit? Or is it permissible to have a earth block in the meter box?
Have you got it in writing that the DNO will permit your isolator for your sub-main to be fitted in the meter box. I ask based on my experience of a new supply to my cottage. There is a sub main to an out building and it would be convenient if this could be isolated at the meter box. The DNO said only their equipment could be fitted in the meter box and that included one isolator for the entire supply. The sub mains would have to be isolated elsewhere.Ok then I just don't want any hitches
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