What is the best (& most compact) method of joining 2 core 25mm SWA to a pair of 25mm tails? The reason for wanting to do this is the limited space for the large bending radius of SWA at the end of its run to a consumer unit. A service connection block (aka Henley) doesn't appear to have suitable entry holes for a SWA gland.
Or can the SWA be terminated in some sort of clamp & each conductor run the last 6 to 12 ins into the CU, perhaps through conduit.
Or some other way, perhaps?
many TIA
Just cut the outer back to where you need to bend it. Sleeve the conductors - use the outers from singles if you can't get sleeving.
Run a separate 16mm earth wire from the header to CU tying it to the SWA with cable ties.
I think the best way is to use one of the Lucy service connector boxes as used by the electricity supply undertakings. I don't know where you'd get them individually though, perhaps a wholesaler that deals in street lighting fittings.
Failing that, position an adaptable box adjacent to the CU where convenient and strip back the sheath and armour and terminate at the adaptable box, but have the cores running through the box into the CU.
If using a metal box, the two holes for L and N must be linked by a slot or in insulating or non-ferrous metal to prevvent eddy currents.
Owain
Many thanks for this & Owain's reply. Very helpful, it's got me off the hang up about needing to finish the run with tails. Looks like an amalgam of the suggestions is the way forward.
But please can you clarify the above suggestion - if you cut back the outer, then presumably you would terminate with a cable gland to get a neat finish? Presumably it would be OK to clamp the SWA just behind the gland onto a timber joist with a standard cable clamp? Am thinking then that the 'loose' unsheathed cable could be run (round quite a sharp curve)into the CU via a plastic switch box which butts up to the CU, (with plenty of space inside for ventilation & to avoid a 90 deg bend).
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