Gents
Our electrican has installed a 6 sq.mm cable direct from the consumer unit to power our induction hob. A 40A MCB has been fitted.
The hob has 5 hot plates and is listed as having a total loading of 10.8kW.
I understand the logic behind diversity, but would like piece of mind that we could run all the hot plates ( if we wanted / needed to ) without worrying about tripping the MCB.
The cable is run in a timber frame through rockwool insulation.
I have been reading through the 2001 Amendment 1 - Table 4D5A - Installation Method 15.
Leaving aside the other factors that derate the current carrying capacity of the cable, the maximum current which a 6 sq.mm can support is 35A.
At 240Vac drawing 35A the maximum power is 8.4kW.
So based on this we will never be able to run all 5 hot plates at the same time ? Am I correct ?
I just wish that he had installed a 10 sq.mm cable. Was it a mistake not to as the 10 sq.mm can handle 47A ?
Further more I am concerned about the 40A MCB ?
Any help / advice would be much appreciated.
Our electrican has installed a 6 sq.mm cable direct from the consumer unit to power our induction hob. A 40A MCB has been fitted.
The hob has 5 hot plates and is listed as having a total loading of 10.8kW.
I understand the logic behind diversity, but would like piece of mind that we could run all the hot plates ( if we wanted / needed to ) without worrying about tripping the MCB.
The cable is run in a timber frame through rockwool insulation.
I have been reading through the 2001 Amendment 1 - Table 4D5A - Installation Method 15.
Leaving aside the other factors that derate the current carrying capacity of the cable, the maximum current which a 6 sq.mm can support is 35A.
At 240Vac drawing 35A the maximum power is 8.4kW.
So based on this we will never be able to run all 5 hot plates at the same time ? Am I correct ?
I just wish that he had installed a 10 sq.mm cable. Was it a mistake not to as the 10 sq.mm can handle 47A ?
Further more I am concerned about the 40A MCB ?
Any help / advice would be much appreciated.