Isolation switch for boiler supply?

[cadspark]

Been asked to look at a house on a small development completed about 5 years ago. Really messy situation involving builders and houses having no completion certificates or even planning permission in one case. Gas central heating is installed but the boiler is wired up straight to a 6 amp circuit breaker with no means of isolating seperately. As the boiler and cu are both in the kitchen would you deem the circuit breaker as adequate as a means of isolation if not ideal as installing a switch would involve messy chasing and retiling work.?

 

[telectrix]

the reson we don't fit switched sockets is so that numpty customer can't inadvertently switch it off and then get a £120 bill from BG to switch it back on. why then is a switched FCU acceptale ?

 

[DPG]

No, but the DP main switch will.




The use of an MCB and/or main switch and/or RCD is a perfectly acceptable means of switching off an appliance for mechanical maintainence. Nowhere does it state in BS 7671 that switching off/isolation for mechanical maintainence must be provided locally. As stated above, isolation can be achieved via the DP main switch.


In response to the OP, if the CU is readily accessible then the install complies with Reg 132.15.2 so no need to fit any other switches.

Surely going by this, fan isolators aren't necessary then? Daz

 

[Silly Sausage]

the reson we don't fit switched sockets is so that numpty customer can't inadvertently switch it off and then get a £120 bill from BG to switch it back on. why then is a switched FCU acceptale ?

Did the world go mad when I was in a drunken stupor!
Hahahaha! Love it!



Only 62 to go...I'll see you there GS

 

[telectrix]

61....

 

[Geordie Spark]

Did the world go mad when I was in a drunken stupor!
Hahahaha! Love it!



Only 62 to go...I'll see you there GS

Champion bonny lad!!

It's bloody lonely - and cold - in there this time of year. Maybe we can have a game of Tumbleweed Football to keep ourselves warm?

 

[Silly Sausage]

Champion bonny lad!!

It's bloody lonely - and cold - in there this time of year. Maybe we can have a game of Tumbleweed Football to keep ourselves warm?

I'm all toasty and warm sat next to my recently installed multi fuel burner stove thingy, fitted by myself complete with totally dodgy flue work! Probably contravened Part Fknowswhat and unnotified. Let me burn in Hell!

 

[ayjay]

just move the cu nearer the boiler?


i,ll get my coat--------

 

[JulianC]

Surely going by this, fan isolators aren't necessary then? Daz

They aren't. Unless your khazi has no windows and the fan runs off the lighting circuit, in which case the Electrician's Guide to the Building Regs. suggests the fan should have it's own means of isolation so you don't carry out maintenance in the dark. Alternatively, wear a headtorch.

 

[Geordie Spark]

I'm all toasty and warm sat next to my recently installed multi fuel burner stove thingy, fitted by myself complete with totally dodgy flue work! Probably contravened Part Fknowswhat and unnotified. Let me burn in Hell!

You got a piccie of it???

 

[decolad69]

How about an engraved label on the front of the boiler identifying the circuit at the consumer unit and if required a FCU next too the consumer unit marked 'boiler'

 

[sedgy34]

I'm all toasty and warm sat next to my recently installed multi fuel burner stove thingy, fitted by myself complete with totally dodgy flue work! Probably contravened Part Fknowswhat and unnotified. Let me burn in Hell!

Burn? More like poisoning yourself

 

[D Skelton]

Surely going by this, fan isolators aren't necessary then? Daz

You're right, they're not.

 

[Octopus]

You're right, they're not.

They aren't necessary but good practice.

I'll put my wooden spoon away now

PLUS the last two calls I've been to with nuisance tripping were both caused by boilers. Luckily both had DP switches!

 

[D Skelton]

They aren't necessary but good practice.

Of course, I'll never dispute that.

 

[kingeri]

The world seems to have gone isolator mad these days!