Is being visable,part P regs?

[jacko57]

Looking at the thread double ovens,it is stated in a few replies,as to the visibility of the isolating CU (above worktop and not in cupboard/underneath.

Is this Regs/part P, or is it a guidance????

Many thanks
Jack'o

 

[JohnD]

In the case of a cooking appliance, which can get hot, and can have e.g. a chip pan fire or a fire in the oven, I am sure that the Emergency Switching rules (not "guidance") apply

My notes say (I paraphrase for brevity) that an emergency switch must be provided for anything you might need to turn off to prevent or avoid danger; you mustn't rely on a plug and socket; it must be readily accessible from the place where the emergency may occur; it must be marked.

there are additional rules regarding isolation for maintenance (e.g. where they may be a risk of injury from burns or movement), and functional switching, but an ordinary DP cooker switch will generally meet all the requirements. the switching off for maintenance would require a means of locking the switch "off" if it was not visible from the appliance. Ordinary domestic switches are not usually provided with holes for padlocks to do this.

The switch must be marked with a permanent label unless its purpose is obvious. a cooker switch next to a cooker is I think obvious; a switch hidden or in a cupboard isn't

 

[Lectrician]

There is no emergency switching rules in domestic dwellings, and there isn't in commercial kitchens either.

The only one in commercial kitchens (which is new) is for gas installs. A gas valve must be located the origin to the room, and this valve will only open once the intake and extract fan are running (using air-pressure sensors in the duct). We also include emerency stops at final exit doors. Chef must turn on the fans, let them run, then press the "start" button to activate the gas. Turning the fans off will kill the gas.

If the fire authority request, the system is also interfaced to the fire alarm, so sounding the alarm will kill the fans, which in turn kills the gas. (not a good idea having a fresh air fan feeding oxygen to a fire!).

Bit off topic.

The switch is an isolator for maintenance.

 

[JohnD]

I looked at the "Isolation & Switching" section of my OSG to refresh my memory.

What's my mistake?