Advice on swa as tails

[BES]

Hello people
Got job to replace/move cu going to be using 25mm 3 core swa as tails as ive never used swa as tails before im after a bit of advice. Do i earth armour of cable at supply end using a 16mm fly lead to gland. As im using the 3 core 25mm how do you terminate the earth in the cu earth terminal as all domestic cu ive seen only accept max of 16mm. One more question the customer has asked me to quote to install two showers one in main bathroom one in en-suite i thought two electric showers in one property was not good practice as could lead to over load problems if used at same time, with going down the route of installing equipment to allow only one to run at a time, time just wondered what others opinion on this was. Dont want to lose work, as i know some will fit without a care , advice please.
Ta
neil

 

[GLENNSPARK]

Bes...i`v had to do this before....when i had to take a feed from the meterbox to a C/U in a kitchen using an armoured clipped direct to an outside wall...and into the kitchen that way....
if its gettin it into the meterbox....you could cut a bit of the wall away at the edge of the meterbox.....to allow the SWA to get into the meterbox.....kind of fly it in like...

 

[Spazz]

I would use 2 core SWA (25mm) and use the Steal armor as the Main Earth at each end terminate into a metal clad box and come from there with a 16mm earth to the CU (one end) and DNO supply (on other end). If using 3 core SWA (25mm) then run the 3rd wire as the earth and terminate that into the box as well as an additional earth to the Steal Armour. Either way the Steal Armour needs to be earthed.

 

[BES]

Thanks glen
Yeh thought that just wondered how others do it , now i know ta.

 

[BES]

Im terminating swa into a wiska box then from box to isolator already fitted by dno in flexible conduit to get around the double insulated part.