Maximum demand calculation

[yarcyk]

I 'd rather learn from people with a lot of experience. I know there is a lot information in books, but applying them in life is a matter of experience. That's why forum like this one exists.

 

[Knobhead]

Forums weren’t set up to do your work. As I recall they are for genuine tradesmen to help each other.

If you’re not competent to do the work, don’t take it on.

Looking back through your previous questions I stand by what I said, go back to college.

 

[yarcyk]

I agree with you Tony. I know I've a lot to learn. I don't feel confident enough yet to undertake electrical work myself. As I mentioned earlier I am interested in fitting new kitchen and would get electrician to do electrical work. But I wanted to know if this can be done and at the same time learn something rather than just take a yes or no for an answer.

 

[shanky887614]

I agree with you Tony. I know I've a lot to learn. I don't feel confident enough yet to undertake electrical work myself. As I mentioned earlier I am interested in fitting new kitchen and would get electrician to do electrical work. But I wanted to know if this can be done and at the same time learn something rather than just take a yes or no for an answer.

a kitchen is notifiable under part p mate so no

 

[telectrix]

i think what he meant was ... can this be done without upgrading the supplier's fuse.

 

[Simonslimline]

a kitchen is notifiable under part p mate so no

Please correct me if i am wrong but a kitchen is no longer classed as a special location?

 

[shanky887614]

Please correct me if i am wrong but a kitchen is no longer classed as a special location?

its notifiable work under part p and as opening post isnt part p registered or signed upto a scam he wont comply unless he pays labc

 

[Simonslimline]

its notifiable work under part p and as opening post isnt part p registered or signed upto a scam he wont comply unless he pays labc

Surely its only notifiable if new circuits are installed.

Also is it not the responsibility of the person ordering the works to notify LABC? Obviously they would need to be made aware of this by the electrician.

Again happy to be corrected on this

 

[Richard Burns]

Surely its only notifiable if new circuits are installed.

Also is it not the responsibility of the person ordering the works to notify LABC? Obviously they would need to be made aware of this by the electrician.

Again happy to be corrected on this

You are correct on the notification.
For electrical work, in England, in a kitchen, where that work is modifying circuits only, this is not notifiable.
Changing consumer units and adding any new circuits (as identified in the OP) would be notifiable.

 

[cprfenom]

What do colleges teach these days?

How to **** off grumpy men :6:

 

[Tony Johnson]

The BS7671 (wiring regulations) has information in the guidance notes 1 (Selection & Erection)

Appendix H has the following information for a maximum demand calculation

Lighting :- 66% of total lighting load
heating :- 100% up to first 10 amps plus 50% of remaining heating load.
water heaters (instantaneous) :- 100%of largest and 2 largest appliance plus 5% of remaining
Water heaters (Thermostatically controlled) :- No diversity allowed

Cooker :- 10amp plus 30% of cooking appliances in excess of 10amps plus 5 amps if a socket is
incorporated into the cooker control unit.

Floor warming :- No diversity allowed
Thermal storage heaters :- No diversity allowed
Socket circuits - 100% of largest load (13 amps) plus 40% of all other sockets connected
Radial circuits :- 100% of largest load (13 amps) plus 40% of current demand of every other circuit


Work through each circuit using the actual connected load not the MCB or fuse size.

 

[GMES]

Tony this thread is over a year old so I'm closing it.