Cooker isolator

[James]

Right, I try to stay away from anything domestic but was asked to do a favour for a friend.

Freestanding electric cooker
Hob, grill, oven
All a single supply 32A max

Previous spark has put in supply, nice isolator with built in socket and even brought a cable down to a connection unit behind the cooker.

All is looking great from my point of view, put cable between cooker and connection plate, pick up tool box and out of there?

Now there is some serious black marks on the wall. I asked what happened to the last cooker.

FIRE, old lady that lives there is a bit dotty and is looked after by her daughter who visits to Cook and help etc.
One day she decided to cook some chips and the kitchen was in flames.
So, 8 months after that event I am connecting new cooker to new supply and thinking what is being done to prevent this happening again.

The daughter has asked me what can be done to lock off the cooker when she is not there.
Is there a nice domestic style isolator that can be locked off?
I can fit one of many industrial type switches but would prefer something that fits a standard double patress
Any ideas guys and girls??

 

[westward10]

I have done something like this but through a timer and contactor. You can run the circuit through a contactor by the consumer unit with the control circuit controlled by a key switch to which Mrs Dotty has no key.

 

[Deleted account]

Nothing comes to mind, but how about a rotary isolator next to consumer unit that daughter can turn on and off at will.

 

[James]

I have done something like this but through a timer and contactor. You can run the circuit through a contactor by the consumer unit with the control circuit controlled by a key switch to which Mrs Dotty has no key.

I have considered doing that, my background is industrial control.
Just wondered if there was a nice neat, pre packaged solution.

 

[buzzlightyear]

Would be better to turn off the mcb on the consumer unit instead.or a metal clad isolator switch like the wylex wy921e

 

[James]

Would be better to turn off the mcb on the consumer unit instead.

Thought of that, suggested it as a stop gap.
They are not really designed to be switched 4 times a day?
Can’t be locked off
Easy to forget

Was really hoping someone knew of a cooker isolator that could be locked off but it’s not looking hopefull.

 

[westward10]

Locking off will be tedious, simple key switch and contactor. I doubt there are any smart products on the market.

 

[buzzlightyear]

https://encrypted-tbn0.gstatic.com/...TMCproKvh1l5hJ1ZQxoM54ApTHgeu14TKCKgA2o8WFsMw. Ten words

 

[James]

Buzz, that is the closest thing I have seen to what I am after.
Not perfect but it’s not a common requirement so it looks like I will have to go with what is available.

 

[buzzlightyear]

You better puting on of them then puting a red nob one on the wall ,lol.

 

[Dave OCD]

I wonder if this could be achieved with a contactor adjacent to the DB controlled by a Hive or Nest type unit which the daughter could operate via her phone if necessary ? Not the cheapest solution but it could work well I think.

 

[ashrow]

You can buy a sonoff wifi smart switch of ebay for less then £5 which can operate a contactor via an app and internet connection
The only issue i can see is that if the oven has a timer that may need to be set to auto/manual mode after every so called switch on and off for the oven to work ?

 

[Dave OCD]

Good point but I'd imagine the daughter could do that easily enough. Better than another fire !

 

[littlespark]

I worked on an RAF base where all the cookers in the accommodation blocks were supplied through a contactor, controlled by the fire alarm system... ie fire alarm sounds, all cookers go off.

This came around because there had been a fire started on an electric cooker... not in one of the accommodation blocks... it actually started in the on base fire station!

I've got an electric hob to fit for one of my neighbours soon, because dotty old lady that lives there set HERSELF on fire by the gas hob!


On the matter at hand, I'd use a contactor at the db, using a lockable rotary isolator, panel key switch, or a simple emergency light test key switch.

 

[gazdkw82]

Within the student accommodation at my works there is a cooker monitoring device. It looks like a webcam and basically if there is no movement near the cooker whilst it is on for a set period of time it will trip the circuit as a safety measure.

It only works on a fully electric oven/hob of course and I think the time is set for 1 hour, but this may be adjustable

 

[Midwest]

Found this;

ClearSTOP Locking Cooker and Electric switch cover ideal for Alzheimers and Dementia Care Applications

This popular Controller Cover (12749) is one of thousands of products held in stock. Call our Manchester based office on 0161 4137939 for more information

www.securitysafetyproducts.co.uk

OR

Socketsafe Lockable Electric Socket Protector : Amazon.co.uk: Baby Products

Shop for Socketsafe PC products at the Amazon.co.uk Baby Products store.

www.amazon.co.uk

Wandsworth Electrical manufacture some lockable boxes for their wiring accessories.