C
Chris14
For 11kw shower what cable size is required for 15m run?
O
Outspoken
11kW @ 230V = 47.8A
11kW @ 240V = 45.8A
Whichever way you look at it 6mm² will not be sufficient because the CPD will need to be a 50A MCB as Tel has already stated.
You need to state how the cable is run however, because the environment the cable is installed in dictates how much it is de-rated by, and you could end up with 16mm² if your running it in fully insulated spaces or in an environment subjected to external heating.
11kW @ 240V = 45.8A
Whichever way you look at it 6mm² will not be sufficient because the CPD will need to be a 50A MCB as Tel has already stated.
You need to state how the cable is run however, because the environment the cable is installed in dictates how much it is de-rated by, and you could end up with 16mm² if your running it in fully insulated spaces or in an environment subjected to external heating.
O
Outspoken
Guys, what about this kiddy...
Redwing 12kW Shower
Personally I say 16mm² will be sufficient on a 286m run, but the Regs work it out to be a 120mm²...anyone any thoughts...Muhahahahahaha
Redwing 12kW Shower
Personally I say 16mm² will be sufficient on a 286m run, but the Regs work it out to be a 120mm²...anyone any thoughts...Muhahahahahaha
M
monkeyelectric
I got asked to install one of those once and his "mate" who was an electrician but out of the country at the time said it could be spurred off the ringGuys, what about this kiddy...
Redwing 12kW Shower
Personally I say 16mm² will be sufficient on a 286m run, but the Regs work it out to be a 120mm²...anyone any thoughts...Muhahahahahaha
i couldn't see a problem and i only had 1.5 with me at the time so i used that, do you think it'll be ok? I did change the mcb to a 50A too cos it kept tripping that poxy 32A
G
Guest55
anything above 10.5kw is a complete waste of time......
why ?
cos its unlikely that you'll have water pressure high enough in an upstairs bathroom to match the flow rate available from the heating element.
thats todays technical insight out the way , its downhill from here on.
;-)
why ?
cos its unlikely that you'll have water pressure high enough in an upstairs bathroom to match the flow rate available from the heating element.
thats todays technical insight out the way , its downhill from here on.
;-)
O
oldtimer
Na in prison they get the full christmas lunch but the Warders have to make do with the sannies they bring in as told to me by a warden friend
G
Geordie Spark
Judging by some of his posts on this board he damn' well should be !!!
D
Darkwood
The OP occupation is stated as Gas so at a guess he's either got bad wind or he's a plumber and with all due respect to the kind nature of this forum he really needs to get a competent electrician on site as oppose to taking a few tips off here and doing it himself, any missed info could be vital to the safety of this install and he clearly hasn't any electrical experience with the basic form of his question...... do the OP a favour boys and recommend a sparkie to weigh it up you haven't spent years training and learning all this to do all the calcs for a DIYer /plumber working outside his trade.
M
MDJ
depends on the cable type, not very big if MICC is run in :rolleyes2:
G
Geordie Spark
He'll probably find his sarnies are better than the "full Christmas lunch".
Praps he's potting some Micc as we speak!
O
Outspoken
I have a 43.9kW shower...well actually it's a 150,000 BTU Potterton Boiler...That is only wired on a 1.5mm² flex from a 13A spur, works fine!! (I think the gas connection helps though!)
G
Geordie Spark
It will do more than work fine ... It'll knock the spots off any domestic electric shower any day of the week, any time of the year.
E
Engineer54
2, 4mm in parallel
What, ....and then have people telling you, that you need to apply a grouping factor!! lol!!
The same loony who surprises you with an 11 kw range oven with induction hob, warming draw twin oven and grill after saying its a double oven and gas hob......
M
monkeyelectric
A 9kw is just as good at getting the grease out of a monkeys fur and i would know
K
Knobhead
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