Replacement Hob Question of Available KW Load
- Thread starter src1
- Start date
D'oh. I've never thought about it before.
It's quicker to multiply the full load by 0.3 and add 7.
According to the OSG you multiply the full load by 0.3 and add 10. Which is no slower.It's quicker to multiply the full load by 0.3 and add 7.
No. You have to deduct 10 first.
Yes, I know that - for explaining to people but when doing it yourself, which is quicker (shorter)
12800/230=55.7-10=45.7x0.3=13.7+10=23.7 or
12800/230=55.7x0.3=16.7+7=23.7
12800/230=55.7-10=45.7x0.3=13.7+10=23.7 or
12800/230=55.7x0.3=16.7+7=23.7
Not sure what the point is of you positing long incorrect formulae.
The OSG guidance formula is
12800/230=55.7x0.3=16.7+10=26.7
[actually it is worded 10 + (12800/230=55.7x0.3=16.7) ]
The OSG guidance formula is
12800/230=55.7x0.3=16.7+10=26.7
[actually it is worded 10 + (12800/230=55.7x0.3=16.7) ]
Well, then it is wrong. Throw it away.
No - you are wrong. Leave the forum and do not return.
FYI - the same formula appears in the IET's Electrical Installation Design Guide and in Paul Cook's Commentary on IEE Wiring Regulations.
Seems you think an awful lot of people who ought to know what they are talking about are wrong
FYI - the same formula appears in the IET's Electrical Installation Design Guide and in Paul Cook's Commentary on IEE Wiring Regulations.
Seems you think an awful lot of people who ought to know what they are talking about are wrong
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Alright, I should have known better than to assume the OSG was correct.
The formula for diversity is:
10 + (((12800/230=55.7)-10)x0.3=13.7)
The formula for diversity is:
10 + (((12800/230=55.7)-10)x0.3=13.7)
Who says it is?
Who says that so many authoritative sources are wrong? What authority to they have to declare that? How and where have their charges been upheld?
Who says that so many authoritative sources are wrong? What authority to they have to declare that? How and where have their charges been upheld?
Anyway, why are you looking in the OSG?
Don't you know it?
The standard wording is
the first 10A plus 30% of the remainder.
Don't you know it?
The standard wording is
the first 10A plus 30% of the remainder.
I'm looking in the OSG to tell you what the formula in the OSG is. And yes, I do know it. But it seems you don't.
I'm looking in the OSG to tell you what the formula in the OSG is. And yes, I do know it. But it seems you don't.
I'm looking in the IEE Electrical Installation Design Guide to tell you what the formula in there is. And yes, I do know it. But it seems you don't.
I'm looking in Paul Cook's Commentary to tell you what the formula in there is. And yes, I do know it. But it seems you don't.
Not in the OSG.
Not in the IEE Electrical Installation Design Guide.
Not in Paul Cook's Commentary on IEE Wiring Regulations.
What "standard" are you relying on?
What's going on?
I am relying on the formula which has been in existance for 60 years.
I am relying on the formula which has been in existance for 60 years.