Ask The Trades - Print Page

Ask The Trades
https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> Boiler Isolation https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1231154111 Message started by wozzy on Jan 5^th, 2009, 11:15am

Title: Boiler Isolation
Post by wozzy on Jan 5^th, 2009, 11:15am

Just after suggestions of how people have gone about local isolation for a external boiler. Its not in a outhouse of anything just in its own weatherproof casing

Any ideas would be welcome, cheers

Title: Re: Boiler Isolation
Post by Zambezi on Jan 5^th, 2009, 11:31am

You could try one of these...
http://www.screwfix.com/prods/15054/Electrical-Supplies/Industrial/Site-Distribution/IP65-Isolator-Switch-25A;jsessionid=LTSJBCOEQDKBICSTHZOCFFA?ts=55076&destination=/prods/15054/Electrical-Supplies/Industrial/Site-Distribution/IP65-Isolator-Switch-25A

Title: Re: Boiler Isolation
Post by wozzy on Jan 5^th, 2009, 6:16pm

yeh i had a similar thought but its a 450 year old grade two listed farm house so i wanted it a bit low key, the only thing i can think of is a MK materseal spur, and just hope no one turns it off for a laugh.

Title: Re: Boiler Isolation
Post by Lectrician on Jan 5^th, 2009, 7:43pm

A boiler is not exactly 'low key' either ;)

If it is the main iso for the cent heat control then two pole is fine, but if you are isolating the L N and Sw L you would need a TP iso. I prefer to place th FCU for the entire heating system adjacent the boiler......two birds, one stone and all that.

Of course, if it is a combi, you are likely to only have a feed anyway.

Title: Re: Boiler Isolation
Post by wozzy on Jan 5^th, 2009, 7:50pm

yeh its a big worcester bosch jobby.

i dont really want to leave a switch outside but what can u do?

I think it going to have to be a SF spur outside, as it is a combi i believe.

Title: Re: Boiler Isolation
Post by Lectrician on Jan 5^th, 2009, 7:53pm

You can have the iso elsewhere (as far as lecky regs goes, not sure on corgi) as long as the iso is capable of being locked off.

Title: Re: Boiler Isolation
Post by wozzy on Jan 5^th, 2009, 8:01pm

i have found the reg i believe you are refering to 537.2.1.5

So a MK spur can be used internally as the fuse holder can be padlocked in the out position?

this could save some hassle!

Title: Re: Boiler Isolation
Post by Lectrician on Jan 6^th, 2009, 6:46am

Not sure on that, A pad lockable rotary is definitely OK, not sure on the spur, is it designed to be padlocked?

Title: Re: Boiler Isolation
Post by LSpark on Jan 6^th, 2009, 9:36am

Lectrician wrote on Jan 5^th, 2009, 7:53pm:

You can have the iso elsewhere (as far as lecky regs goes, not sure on corgi)

Who cares about corgi they're going in april, a contract has been awared to another body to carry out gas registrations!

Lectrician wrote on Jan 6^th, 2009, 6:46am:

Not sure on that, A pad lockable rotary is definitely OK, not sure on the spur, is it designed to be padlocked?

Yea most of the logic-plus range of FCU's can be locked with a K2000 fuse carrier padlock (overpriced padlock with an MK logo engraved on it) when the fuse carrier is pulled out.