Opinions on the load of this cooker circuit???

[MDJ]

whatever the actual way is Joe your fine with that load on a 6mm2 cable buddy, no worries at all, unless it is 2 miles away from the Dist board of course haha.

 

[telectrix]

that's spot on. but i ( for some reason known only to my psychiatrist ) use 33%, not 30%. ah. i've remembered. it's because we now use 230V instead of what it actulally is, 240. just to err on the cautious side.

 

[telectrix]

whatever the actual way is Joe your fine with that load on a 6mm2 cable buddy, no worries at all, unless it is 2 miles away from the Dist board of course haha.

but it'd be OK at 1 mile 7 furlongs and a chain. just be a bit longer to cook stuff.

 

[MDJ]

Hahaha

 

[Joe S]

25a just seems low to me. Just means that all my circuits have been super safe, lol!!

 

[telectrix]

better safe than up before the man in the funny wig.

i once had to go to court . magistrate said " have you been up before me before? i said " don't know, your worship. what time do you get up?"

 

[MDJ]

You could work out the load by dividing it by 0.4, some do, if you do it will be about 16 amps haha

 

[Joe S]

I nearly spat my tea out at that!!!:laugh3:

 

[telectrix]

divide by 0.4? that would be 40/0.4 = 100A better get the 25mm out. sorry mike. couldn't resist that one.

 

[MDJ]

sorry x (times) lmao, that was a blooper haha

 

[Guest55]

25a just seems low to me. Just means that all my circuits have been super safe, lol!!

i've managed to squeeze all 25 circuits on the entire first floor of a retail installation design down to a tiny , winey , measily 48amps per phase

i used a man's man's diversity ;-)

 

[Rampantchilli]

Is that how the calc should be done?? My old boss taught me the other way which is how I came up with 31A

not sure if thats the way to do it, but i just follow whats taken into account in the order its mentioned.

another thing that is so rarely taken into account is reference method, by the regs almost none of the reference methods allow 32a on 6.0mm except perhaps ref c,
i think 101 or 102 would still be ok for the load but not sure off the top of my head

 

[telectrix]

worst is 103 at 23.5A.

 

[IanHug]

Excuse this question if it's stupid but isn't diversity used to get a rough estimate where not all outlets will be used at the same time? Isn't it quite likely that the oven and all hob rings will be on at the same time and cause a maximum load?

 

[telectrix]

not exactly, cookers are a one off, inasmuch as 1. not everything will be switched on at the same time. and 2. the rings and oven elements are thermostatically controlled, so that, even when all are on, they will not all be pulling full load at the same time.