which reg

[i=p/u]

working today relocating cables to accomadate building works happening .(hotel)

there was a 50A breaker feeding a single double socket with 10mm cable.

i said im gonna squeeze a fuesd spur in and was told no cause that limits me to 13A ,where its feeding two hotplate/food counters on 13A plugs

i think change the breaker too at least a 30A .. whats your views what regs is he defying..

 

[Strima]

The breaker is there to protect the cable, depending on installation method it should be OK as it is. Seems a bit excessive to run that size cable to a couple of socket outlets, are they 1363?

 

[Des 56]

Its likely that the manufacturer will state around a max 20 amp only for the loaded rating of the double socket

I knew I have seen confirmation of limited rating ( got the figure wrong though)
The following I have copied and pasted from elsewhere

All MK socket-outlets are manufactured to comply with BS1363 part 2: 1995 and are rated at 13A per unit. Double socket-outlets have been manufactured and tested to exceed this rating by margin that allows electrical safety and reduces the risk of heat and mechanical damage to components due to overloading. It should be noted that BS1363 part 2: 1995 does not allow double sockets to operate at twice the permissible maximum loading and it should be remembered that double socket-outlets are not manufactured to be able to withstand a 26A load for sustained periods of time.

Research by ourselves and third party organisations has shown that all MK double sockets can safely withstand a continuous load of 19.5A for an indefinite period. Increasing the load slightly will begin to cause heat and mechanical stresses on the components in a relatively short period. Testing showed that a load of 22.3A was sufficient to cause heat stress that would cause a browning of the faceplates and sufficient heat to cause insulation damage to cable cores. A load of 24A for 43 hours was sufficient to cause significant heat damage to the material in which the socket-outlet was situated and within 75 hours sufficient to cause significant damage that would lead to the very real potential of fire.

 

[BMelectrics]

Good Evening,

Do you know what current the hotplate/food counters pull??

If the plugs have 13A fuses in them then surely it cannot be pulling more than this.

Would be wise to put a 20A MCB if this is the case , do you think with this cable size and 50A breaker that he plans to upgrade in the very near future?

 

[i=p/u]

well it has worked fine up untill now. no its not pulling more that 26A. i just think the socket outlet is the week point here. and yes i was thinking 20A or 30A mcb would be bettrr

 

[i=p/u]

its just one of them place more power points and lights than disney land that has been added over the years with minimal inconvenience

The breaker is there to protect the cable, depending on installation method it should be OK as it is. Seems a bit excessive to run that size cable to a couple of socket outlets, are they 1363?

 

[sedgy34]

working today relocating cables to accomadate building works happening .(hotel)

there was a 50A breaker feeding a single double socket with 10mm cable.

i said im gonna squeeze a fuesd spur in and was told no cause that limits me to 13A ,where its feeding two hotplate/food counters on 13A plugs

i think change the breaker too at least a 30A .. whats your views what regs is he defying..

the cable is protected by the fuse, the appliances have 13A fused plugs no problem here

 

[i=p/u]

yh i was asking myself today whats wrong with this, and was going over loads of stuff in my head but as you say have 13A fuesd plugs and probably aint pulling that.

i just never seen a 50A breaker feeding a double socket before

 

[i=p/u]

its an old cu with old mcbs, probably bs 42793 , am i right? if i can get my hands on one il swap it for 20A

 

[Strima]

If he won't budge on the MCB what about C-Form sockets for the appliances? Make it a dedicated circuit for those appliances?

 

[i=p/u]

hel budge if push him

if i can get my hands on one il replace with 20A breaker, but everywhere i go will probably be a ,''well they are like hens teeth young man''. ahhhhh f off mr.

 

[Geoffsd]

What would you have thought or done if it had been 4mm cable and a 32A mcb?

The same?

 

[sedgy34]

If its a 10mm on a 50A mcb it's more likely it's been an oven circuit before and it's been altered to what you described but can be altered again to suit customers needs if they have an electric 10 kw oven, leave it alone IMO


Then again your Irish lol

 

[i=p/u]

not brazil were northern irelandddddddd , not brazil were northern ireland!!!!

yes i know its an old cooker circuit converted. and yes suppose so if was on 4mm and 32A would i care.. probably not

but ... buttt, butt thgats ok then case closed. ty

 

[telectrix]

after reading des's post, i would be inclined to change the double socket for 2 singles. also, having seen 1363 sockets melted when supplying cooking apparatus, it might be an idea to fit 2 16A commando sockets ( forgot the BS no.) and change the plugs on the appliances accordingly.