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How did the alarm send out a signal when the power was turned off if the battery did not take over ?

On a new build i am currently at the local building inspector has insisted smoke and heat detectors are fitted to all habital rooms. The ridiculous thing is the utility room housing a boiler, washing machine and drier, lots of electric valves and pumps for water salvage does not need any, along...

I dont agree with all of this. The SWA should be earthed at the supply end. This means it does not need 'RCD protection in line with the new regs if less than 50mm deep in wall or ground' Putting that aside my views are an RCD in this type of situation should be at the garage/shed/outbuilding end.

http://www.tlc-direct.co.uk/Main_Index/Fire_and_Smoke/Housesafe/index.html

Unfortunately you shouldn't if any metal lights/ switches are present. I know it would make it safer but you would be working on and certifying a circuit that does not meet BS7671. To save replacing all metal backboxs you can get plastic 3.5mm screws such as these...

Is it correct on a TT supply any rcd's at the main distribution should be in a plastic enclosure and is there a reg for this ?

Quite right. That was not asked in the OP

Wrong

Because that what it is. 60A fuse holder is only size availible

Shurley you mean to stop the stroboscopic effect ?

Try some clove oil

That would be a 'Lucy' cut out with a 60A BS1361 Type 2 fuse

I mark mine with blue sleeving. The earth lead should also be marked accordingly. What happened to cream for functional earth ?

I think this guy http://cgi.ebay.co.uk/60-amp-fuse-mains-fusebox-holder-consumer-unit_W0QQitemZ200325913744QQcmdZViewItemQQptZUK_BOI_Electrical_Components_Supplies_ET?hash=item200325913744&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A2%7C240%3A1318 Is trying to...

http://www.videojug.com/film/how-to-change-a-fuse-in-a-traditional-fuse-box :o :^O:_| Also availible in that set, How to get out of a car without showing your knickers Pray

Dont know , as i said i was taught it as being good workmanship and i guess its the OP answer. Edit, Also, most connector blocks now are rubbish, they have skimmed so much metal away they either split along the bottom or the thread strips. This doesnt seem to happen to the hard types

Why ? BS pvc cable has a higher rated temp than non marked nylon connector blocks

Hi, i was taught to use Bakelite type connectors at switches. These are nowadays replaced with the harder plastic types, not the cheap nylon ones. The reason was, the householder may swap the switch for a dimmer which will get hot. This in turn could melt the connector. Yep i agree its unlikly...

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