Thank for replying,I am not sure rating of the equipment,
They have various Coffee machiines, Meat slicers, hand dryers, Air con system,
Many thanks for your help,
naz
Well this IS what you need to know to work out max demand with ref to diversity where applicable!!!
It is rather like asking how many miles can I travel in my car on a full tank of fuel
And only using the manufactures handbook recommended 'X' miles per gallon....
(empty @ 55mph!!)
The "real" miles per gallon is only relevant when you take into account other factors such as....
The speed you are traveling at
How much weight is in the car
Has it got a roof-box & a bicycle on the roof
Is it towing a caravan....
etc...
etc..
etc..
A circuit with a 32A breaker may only be taking 8Amps for 3 hours per day!!!!
When you are seriously getting concerned about the Max demand of an installation..
you have to go into more in depth analysis of ALL related circuits...
ALSO consider there may be two circuits that each take 10Amps...
but if they are never on simultaneously the real max demand of these circuits will NEVER exceed 10 amps!!!
Had a job a few years ago where both the cooker and shower shared the same 30Amp fuse....
Single 6.0mm leaving fuse box.. J-box under bathroom floor splits to cooker & shower!!
Fortunately this property was occupied by a single person.. So the probability of both cooker & shower been on simultaneous was negligible!
(p.s. while changing the CU I did split the cooker & shower onto more appropriate circuits! :Salute )
I always find that Diversity is one of those areas that trips up the less experienced electrician..
they think they can just read some tables out of a book, do a bit of addition and/or multiplication and there's your figure!!!
Re-read paragraph 2 of page 95 of On Site Guide..
where it says, with ref to the guidance and tables given...
It is impossible to specify appropriate allowances for diversity for every installation !
