K
kita
I only completed one year of a city and guilds sparky course so I'm not sure if I should be posting but.... I'm aware of part P, have a basic understanding of the wiring regs and know that work in kitchens by uncertififed installers needs to be reported to the local BC.
A friend is replacing his hob and cooker. I want to know if a new ring needs to be installed. Here are the details:
Currently there is a dedicated 32A supply for the fixed hob and cooker which only have one power cable (the 'cooker ring'). The run is about 12 meters from the consumer unit, via a single switch. I believe that the cable is currently 6mm twin and earth, but it could be 10mm (its from a 1997 install). What he wants to install is a fixed hob (6.6kw), oven (3.5kw) and warming oven (0.8kw), and he believes that they all have seperate power cables. At 230v the peak load will be just under 50A.
-Taking the units as a whole, what would a single cable and protection need to be rated at, allowing for diversity? Am I right in thinking that the proper way to split the supply into three is via a junction box? Does each 'spur' need its own protection?
-There is a nearby 13A socket, running off a seperate ring. What is the forum's opinion on removing the socket and using this ring to run a fused spur for the oven, provided that it doesn't overload the ring (leaving the 'cooker ring' for the hob and warming oven)?
In short, can the units be installed using existing wiring without running a whole new 50A supply?
Either way the work will be done by a qualified sparky and/or inspected by the BC. I just want to know so that he gets a proper quote.
Cheers
A friend is replacing his hob and cooker. I want to know if a new ring needs to be installed. Here are the details:
Currently there is a dedicated 32A supply for the fixed hob and cooker which only have one power cable (the 'cooker ring'). The run is about 12 meters from the consumer unit, via a single switch. I believe that the cable is currently 6mm twin and earth, but it could be 10mm (its from a 1997 install). What he wants to install is a fixed hob (6.6kw), oven (3.5kw) and warming oven (0.8kw), and he believes that they all have seperate power cables. At 230v the peak load will be just under 50A.
-Taking the units as a whole, what would a single cable and protection need to be rated at, allowing for diversity? Am I right in thinking that the proper way to split the supply into three is via a junction box? Does each 'spur' need its own protection?
-There is a nearby 13A socket, running off a seperate ring. What is the forum's opinion on removing the socket and using this ring to run a fused spur for the oven, provided that it doesn't overload the ring (leaving the 'cooker ring' for the hob and warming oven)?
In short, can the units be installed using existing wiring without running a whole new 50A supply?
Either way the work will be done by a qualified sparky and/or inspected by the BC. I just want to know so that he gets a proper quote.
Cheers