They believe it should be a C3I'm surprised the local authority are not being more causious with this as its a potential fire hazard
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Discuss Shower EICR Code- 9.5kW- 40amp mcb!. De rate MCB to 32 or rewire cable to 10mm in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
They believe it should be a C3I'm surprised the local authority are not being more causious with this as its a potential fire hazard
The 32amp mcb will likely trip on overload as 9.5kw is 39amps at 240v or 41amps at 230v. Advise a down rate size of shower to suit cable or they need to upgrade it to 10mm2 for the 9.5kw
Is there any signs of over heating at all the terminals?
Yes but a 32 amp mcb will take that for an hour plusIf the shower is rated 9.5KW at 240V then at 230V it's 38A.
So what? It's still wrong isn't it....IMO it's simple, no code if the CCC based on design current is adequate taking installation method in to account. Code 2 if the CCC based on design current isn't adequate taking installation method in to account.Yes but a 32 amp mcb will take that for an hour plus
My own shower is a 9.5 kw on a 32 and 6.0mm , never trips no signs of damage , cable might be stressed but aren’t we all?
I total agree with you leesparkyIf the shower is rated 9.5KW at 240V then at 230V it's 38A.
well .you may has well put the shower on bell wire .and see what you get!
That only applies if clipped direct , none are always underfloor and through roof!if installed ref. method C, 6.0mm is pessimistically rated @ 47A. what's the problem? shower is only 39.5A @ 240V, and that's probably over rated. bet a clamp meter would show no more than 35A. no code.move on.
9500 / 240 = 39.58If the shower is rated 9.5KW at 240V then at 230V it's 38A.
(240x240)/9500= 6.06 Ohms9500 / 240 = 39.58
9500 / 230 = 41.3
Reply to Shower EICR Code- 9.5kW- 40amp mcb!. De rate MCB to 32 or rewire cable to 10mm in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net