Local isolation is not required by the regulations for any appliance and the law has nothing to do with it.
What makes you think there is no need for the isolation when the manufacturer thinks there is?
My Mira Sport instruction booklet says that the isolator is required by the regs. and the electrician who fitted it was equally adamant that it is a legal requirement.
There is no need for local isolation in the regs. The manufacturer is ignorant and wrong.
So how do YOU know that in any specific situation that YOU know more about a product and its requirements than the company that has spent a considerable amount of time and money to research, designed and manufacture a product with a specification for a safe installation?Once again the manufacturer is ignorant and wrong. Same goes for your so called electrician.
If a product needs to be isolated when not being used, then it is not fit for purpose.
Are all your appliances isolated?
There you go.No BUT most of the MI's do not state it needs an isolator.
I disagree. Why might that be the case?So my belief is when MI does not state it requires an isolator, I accept it does not need one.And surprise surprise, when MI states it needs an isolator, I accept it needs one.
Yes, unless you can think of a reason.Oh how foolish of me to read and accept instructions from a supplier of kit.
Yet they are not required by the regulations. Why would that be?In the case of a shower unit, it would not occur to me to NOT install an isolator and I'd use it on a regular basis.
Such is life, but that is the correct use of the word 'isolator' and its purpose, other than that they are switches which you can fit if you want.Several years back I was asked to replace a sink water heater, it had neither electrical or water local isolator.
The dist board was in a secure locked room and,
The only water isolation was the main stopcock which was immovable.
I think this is very important as they are notoriously prone to failure and leaving a stalled motor (even one this small) is a bad idea and replacing a failed fan in a room without a light will usually beg the question: why didn't they fit an isolatorThe prime example is, of course, extractor fans needing an 'isolator'. They do not.
No. Why? Should I?You must have a lot of trouble fitting ovens to 16A circuits.
Many manufacturers think they are quoting the regulations but they are not.
I suspect most manufacturers include the instruction to have an isolator in case someone doesn't manage to isolate a faulty shower quickly and tries to sue the manufacturer when their house burns down.
It should get a pass obviously as there is no requirement for local isolation.
If it failed ask the tester why and if he says no local isolation ask him/her to quote the relevant reg AND THE RELEVANT MI.
My Mira booklet says .... '.must be provided with means for local disconnection incorporated into the fixed wiring in accordance with the relevant local wiring regulations.
This must be a double pole switch which has at least 3mm contact separation at each pole. The switch can be a ceiling mounted pull-cord type or a wall-mounted switch fitted in the applicable zone area.'
Seems pretty clear that they think it's needed.
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