S
sjm
I only ever use the Crabtree 50 amp pull switch. Perfectly thought out for use with 10mm cable and as Engineer 54 has said when you remove the cover the neon goes with it, perfect for testing.
Discuss Why fit a pull-cord switch for a shower? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
Well oracle I think you'll find that
1 Showers are not classed for 554.3 the same as kettles are not
2. 701.512.3 again as nothing to do with requirements for DP separate switches for showers, as this reg also includes the use of a pull cord switch for lights
As far as the Regulations are concerned, try Regulation 554.3.3, which covers 'Water heaters having immersed and uninsulated heating elements' (no, NOT electrode boilers, we are talking 'immersion type' heaters!).Electric showers contain a small tank with an instantaneous immersed water heater in it, and hence come into this category.
It states " The heater or boiler shall be permanently connected to the electricity supply through a double-pole linked switch which is either separate from and within easy reach of the heater or boiler or is incorporated therin".
If you then check Regulation 701.512.3, erection of switchgear, control gear etc etc, you will see it states that
"The following requirements do not apply to switches and controls which are incorporated in fixed current-using equipment suitable for use in that zone or to insulating pull cords of cord operated switches".
Those are the Regs that probably cover your question. Other factors like isolation, safety etc have been mentioned by other contributors already so I wont add any more. Hope that helps
The Oracle
On another note does anyone know of THE quick way to strip 10mm?, something i only learnt a couple of years ago
There is no risk whatsoever of damaging inner cores by using this method electromonkey
There is...........if you use the wrong kind of knife. i.e. one that's too sharp.
Don't knock it until you try it.
I do, ill try explain, far far easier to show
Hold the cable flat in hand
Using snips, snip upwards either side of the cpc, go even further possibly by cutting halfway into the conductors, then using 2 hands, pull the top layer snipped insulation and the remainder left underneath away from each other, it flies off
Might be hard to understand but if shown you would see, could strip about a metre of grey without damaging innercores in around 5 seconds
Reply to Why fit a pull-cord switch for a shower? in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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