Attn: House Sparkies...
22-06-2005, 07:11 PM
#3
Team HOTHOT!
4mm twin and earth, on its own circuit breaker in the consumer unit - need to have a 16ms trip time so the breaker is a catagory B one i think - was years ago when i did all this at college 
22-06-2005, 07:22 PM
#5
PassionFord Post Whore!!
It needs to be AT LEAST 10mm twin and earth, depends how long the cable is going to be. (earth loop impedance) or you better get an insurance claim form ready.
Disclaimer:
Since 1st January 2005 electrical installations in domestic properties come under building regs part P.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
Disclaimer:
Since 1st January 2005 electrical installations in domestic properties come under building regs part P.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
22-06-2005, 07:24 PM
#6
Team HOTHOT!
10mm twin and earth 
- thats way to heavy - we never used to even fit anything above 4mm armoured for 12kw machinery when i was a maintenance bod 
- thats way to heavy - we never used to even fit anything above 4mm armoured for 12kw machinery when i was a maintenance bod
22-06-2005, 07:28 PM
#7
Professional Waffler
i havent got my cablee tables at home with me (anyone got the 16th edition iee?) but im sure you on the edge of 10mm, but it should be fine
of cause it all depends on the cable run
of cause it all depends on the cable run
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22-06-2005, 07:29 PM
#8
Professional Waffler
Originally Posted by Graceland
10mm twin and earth - thats way to heavy - we never used to even fit anything above 4mm armoured for 12kw machinery when i was a maintenance bod
- thats way to heavy - we never used to even fit anything above 4mm armoured for 12kw machinery when i was a maintenance bod 
22-06-2005, 07:32 PM
#11
Team HOTHOT!
voltage drop, ambient temperature, resistence of the cable and heat generation are more of a factor in single phase from what i remember - its ages since i studdied it, might have to dig my 16th edition regs book out
22-06-2005, 07:36 PM
#13
Team HOTHOT!
never did the 16th edition course - i walked out of my job, they were going to put me thru it tho - kinda wish i stayed now and got 16th edition qualified - altho i left with onc and hnc in electrical engineering - but i've forgotten nearly all of it
22-06-2005, 07:54 PM
#15
Originally Posted by focusv8
Disclaimer:
Since 1st January 2005 electrical installations in domestic properties come under building regs part P.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
Since 1st January 2005 electrical installations in domestic properties come under building regs part P.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
I'll ask a sparkie at work tomorrow.
22-06-2005, 08:01 PM
#17
Professional Waffler
focusv8,
the mad thing is,, my boss is charman of the south wales IEE, he bought a house for his girl, the morgage company wanted a certificate to say the electrics of the house was up too spec,,,,, he wasnt alowed to write one as he wasnt approved
Since 1st January 2005 electrical installations in domestic properties come under building regs part P.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
This restricts installation of new wiring to approved contractors, or subject to building regs approval amd inspection, for a fee of course.
the mad thing is,, my boss is charman of the south wales IEE, he bought a house for his girl, the morgage company wanted a certificate to say the electrics of the house was up too spec,,,,, he wasnt alowed to write one as he wasnt approved
22-06-2005, 08:13 PM
#22
Team HOTHOT!
45.41 amps
i'd install 60 amp cable minimum to take into account the ambient temperature, voltage drop and starting current for the heater in the shower
i'd install 60 amp cable minimum to take into account the ambient temperature, voltage drop and starting current for the heater in the shower
22-06-2005, 08:18 PM
#24
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47 amps at 230v. You need 10mm twin and earth minimum. You'll never run it at full chat tho. Make sure its wired through a shower isolator/pull cord.
Part P is a pain in the fookin ass. More money scamming.
Part P is a pain in the fookin ass. More money scamming.
23-06-2005, 08:58 AM
#29
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Originally Posted by *Anna*
WOW all this to wire up a shower.
all this to wire up a shower. 
Sometimes you have no idea
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