gas hob

[desrob]

when installing a gas hob is it your duty to install a means of isolation that is accessable at all times

 

[sparra1100]

yes ,think its in the regs

 

[desrob]

it is ,but can it be left un accessable as gas hobs often are

 

[sparra1100]

it is ,but can it be left un accessable as gas hobs often are

dont think there a lot you can do mate i usually try to put the iso behind the kickboards or if theres a way of cutting the back out in the next cuboard think as long as its got one your covered its one of them grey areas again

 

[heliotrope]

when installing a gas hob is it your duty to install a means of isolation that is accessable at all times

A means of isolation and disconnection shall be provided. This could mean a gas cock on rigid pipework or a
bayonet connection if you are using a flexible hose. This should of course be accessable.

I don't understand the bit about 'all times'

 

[Billy Bob Bob]

it does not have to be accessible at all times on appliances its just there for servicing purposes the main iso is the meter ecv

 

[mikgee]

Hang about, thought hob had to be rigid pipework only..

A means of isolation and disconnection shall be provided. This could mean a gas cock on rigid pipework or a
bayonet connection if you are using a flexible hose. This should of course be accessable.

I don't understand the bit about 'all times'

 

[stevetheplumber]

evidentally there are some hobs out there that allow some sort of flexi connection not seen it myself but it has been covered here previously

 

[warrington]

An appliance isolation tap should be provided with suitable means of disconnection in a readily accessible position.

 

[sparra1100]

evidentally there are some hobs out there that allow some sort of flexi connection not seen it myself but it has been covered here previously

yep kirkgas went into in detail in another post its all to do with the mi,s

 

[Nas]

I thought the regs said a means of isolation is needed wherever "PRACTICABLE" ( capable of being used as well as being installed, If it cant be accessed then its not practicable)

 

[johnnyplumb]

If I remember right regs says something like - an isolation valve should be installed in an accessible place wherever practicable.

 

[tamz]

This is what it says in BS6172 (cookers)

11.1.6 Where rigid pipework is used, an isolation valve with means of disconnection shall be provided.
and then also
11.2.1 The gas installation pipe to the termination point shall conform to BS 6891 or IGE/UP/2 [17], as
appropriate.

so you have to cross reference to BS6891 and UP/2. (UP/2 is pipework in I&C premises so doesn't apply here)

From BS6891 (pipework) the only reference of anything to do with that is
7.3 Compression fittings
Compression fittings shall conform to BS EN 1254-2 or/and BS EN 1254-4 (copper) or BS EN 1254-3
(polyethylene), as appropriate, and BS 864-2, and shall only be used where they will be readily accessible
and allow the nut to be tightened to make a gas tight joint

So. If it was a compression cock it has to be accessible. A soldered one ?? Strictly speaking no if you can get in to disconnect the appliance although good practice would be to make it accessible.
Accessible does not mean open the door and it is there. It may require the use of tools eg behind an oven or panel

 

[AWheating]

if its behind the oven for example its fine as you can get to it. if its behind a fixed cupboard with no hole in the back then no.

as for cooker hoses, if the manufactures instructions say it can be done and are followed then you can use them, normally if the oven is underneath this is not possible anyway because the heat from the oven exposes the hose to temps above what is allowable so it would need to be ridged pipework.

cooker hoses to BS 669 - 1 : 1989. max ambient temperatures up to 70 ° ( 95 °C touch temperature)