Thanks, but was thinking don't really need a battery (which is relatively large) as I have a permanent supply supplying the RCD spur!
My thinking was to have the RCD'd supply energising a relay, if supply lost, relay changes over and permenant supply powers a sounder!
Customer feeds an outhouse via a RCD fused spur. Tripped a couple of times in the last 6 months and because there is a freezer out there potential to not know supply has tripped and lose all thats in the freezer.
Anybody had cause to use some sort of alarm in the event of the RCD tripping...
Try not to do PA Testing but had to do it today!
Was doing the above today after a cottage got flooded. Lead didn't appear to be wet, but failed the insulation test @ 0.7Mohms, this was at a test voltage of 250V.
Re-tried it with my installation tester at 100V and 50V and got the same...
This thread went off at a tangent so I stayed clear! In the meantime have reviewed the situation with regard to the pull cord isolator option
Can't put it in the bathroom as BYB says any cable going through a bathroom needs RCD protection!
551.6.1 has 5 options, not all will have a 3 position changeover switch. Item (iii) specifically mentions break before make but the other 4 seem to imply other means of ensuring that both supplies cannot be connected at the same time.
From what I can see of the mechanism in the examples shown...
What EN numbers you looking for? These are just main switches that are configured to provide a changeover function. I've used one myself in the past.
Can always label it yourself with regard to mains/generator.
Contrary to wide opinion it doesn't need to have a 3 position switch 551.6.1
Did I say the tenant was paying for it? Seemed logical that tenant organises it, tells landlord costs and if agreeable organises work being done at a convenient time!
davesparks:
The reason for the fan isolator was to turn it off at night, to reduce noise etc. (kids in house)
Flanders:
The regs say cables running THROUGH a special location need RCD protection (not over)
Some numpty has put in a ceiling fan with a pull cord above a bath - ceiling is getting very damp and apparently water keeps dripping out, I guess due to condensation in the duct.
Customer (tenant) wants me to put in an in-line fan, and as it doesn't have a fan isolator switch, add an...
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