Installing a 3 phase cooker with 6kw on one phase, 6kw on the second and 3.5kw on the third. The instructions recommend using flex. In BS7671 I'm using Table 4F1A, page 292 and therefore need 6mm flex. This sounds a lot for 26.1 amps on each phase. Am I being dumb?
Also can anyone recommend...
Jon Bridges
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Hi all,
Just wondering if ifs ok to use 1.5mm SWA armoured cable on a wendy house with a 25m run from the board to the wendy house on a 20 amp breaker, its only gooing to feed 3 double sockets and a couple of outside lights, nothing extravagent is going to be used on the sockets, just...
Hi all, can anyone tell me what cable size I should use for 2 x 6kw fryer's which has a run of 20 meters, it's been a while since I had to work these out and have got a little rusty so I used an online cable size calculator which gives me 4mm- is this correct? Any help would greatly appreciated!
I have a 25m run with the cable being clipped to a wall. it will be an swa. the md is 83.04A. i'm having a brain meltdown day and in need of a little reminder of how to do this. my brain is telling me 16mm 3c swa would be fine.
Is there a tool or way or determing the size of a cable if you have no information? (eg. 25mm earth)
Sometimes it can be tricky to know the size of a cable by looking at it.
can anyone explain why if you spur off the ring to a f/c/u the spur must be 2.5 to supply a 1.5? when would the rating exceed that of the 1.5? is if f/c/u potential change to socket the only reason?
Hi
I'm a diyer planning to run SWA to an outbuilding and just wanted to get some advice on what size I need.
This is what I am planning.
The cable length is 65m. the load will be no more than 32A at any one time, a few sockets, maybe a 3KW heater and a couple of lights.
At the house end it...
Hi
Has anyone got a ready made chart that has the right cable size for the the load of a certain appliance ie Cooker etc
For example 2.5mmsq will do up to 21amps and the equivalent kw's etc etc
Its not for myself I want to give it to my apprentice
I can't find my regs book and I just...
Hi all,
Dad is planning a chalet type building at the end of the garden and is putting in the services soon (water, waste, electric)
He wants to get the armoured in ready and wants to know what size cable but dosent know exactly what will be going in there yet cable run will be 50m from the...
Hello all,
Is there a general "rule of thumb" for the size of cable needed for an electric shower or is the answer as always "it depends"?
In short can I use 6mm cable (already installed) to supply a 8.5Kw shower.
thanks in advance
Gerry
Hi there.
I have been asked to design and install a small brewery in the basement of a pub. In total there is going to be 2x 12KW elements and 3x 18KW elements. This adds up to 78KW. There is a couple of small pumps to be installed aswell.
In total I would like to allow for 80KW for the entire...
Is there a reliable way of estimating cable size when doing a visual inspection?
Sometimes cables can look the same, is it just a case of experience or is there a definite way of measuring and saying that is 6mm or 10mm?
Marc
Can anybody advice on cable size for 250Kw star delta motor, star delta starter supplied with 240mm 4 core SWA protected by 500a fuses. Would like to keep cables at 240mm but terminal box looks a bit small for 2 x 240mm SWA cables motor is rated at 400v 430Amp
Regard
ps this is my first time...
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