I need to replace a shower of unknown wattage, the cable is 6mm T&E and has the following approximate run
2m behind plaster
3-4m loose between ceiling and upstairs floorboards
1.5m behind plaster to switch
1.5m behind plaster to loft space
2-3m clipped to upper surface of roof joists (passes over insulation not under)
1m behind plaster down to shower
The question is what should this cable run be treated as and (if someone wants to save me finding the formulae to work it out) what limit do I have on the shower rating without replacing the cable with 10mm.
2m behind plaster
3-4m loose between ceiling and upstairs floorboards
1.5m behind plaster to switch
1.5m behind plaster to loft space
2-3m clipped to upper surface of roof joists (passes over insulation not under)
1m behind plaster down to shower
The question is what should this cable run be treated as and (if someone wants to save me finding the formulae to work it out) what limit do I have on the shower rating without replacing the cable with 10mm.