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You could probably knock that infill concrete out with a tooth pick then get it refilled with tarmac.
Discuss SWA in drain permissable? in the Electrical Forum area at ElectriciansForums.net
You could probably knock that infill concrete out with a tooth pick then get it refilled with tarmac.
It looks like that drain is starting to break up anyway. The cement is cracking around it. Not a good future for the cable. Maybe use it and dig deeper than. But regs say 450mm don't they?
If their budget only allows for a bodge job, then don't do it.that would be outside their budget. It's a bowling club, they want to add a 2nd floodlight to the far end of the car park so the oldies can see their way to their cars in the evening. In their minds it's a case of, "can you just add an extra light...."
without getting the big book out it says something along lines of sufficient to prevent damage or such like, which will vary according to each job and location.There are no stated depths for SWA in bs7671
without getting the big book out it says something along lines of sufficient to prevent damage or such like, which will vary according to each job and location.
The BYB/BBB aren't step by step guides. If they had to cover every detail and scenario they would be a lot bigger and cost a lot more.Quite
One big glaring issue not resolved .... AGAIN
The BYB/BBB aren't step by step guides. If they had to cover every detail and scenario they would be a lot bigger and cost a lot more.
Installation of SWA in Aqua Channel/Drainage Channel? Hmmm not something I'd consider doing at all.
The BYB/BBB aren't step by step guides. If they had to cover every detail and scenario they would be a lot bigger and cost a lot more..
708.521.1.1 0.6mThere are no stated depths for SWA in bs7671
708.521.1.1 0.6m
522.8.10 sufficient depth to avoid reasonably foreseeable..
Of course that is not for SWA specifically but it does say the cable should be armoured and that armour capable of acting as protective earth. And yes it is a special location.
I wonder where I got the 450mm from. Used to be 18 inches when I started up? It has stuck in my head.
I suppose the issue is,that either there is no warning or expectation of such a cable being in there,and the labourer hacks away at it,with his graft,whilst cleaning it out...or... you put clear and visible warning notices,nearby,and inform the world,you bypassed good practice.
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