You are now suggesting that MCBs need to be spaced to prevent overheating.
I have indeed done that in off-peak storage heater consumer units where the MCBs will be running fully loaded for possibly more than five hours, maybe possibly even up to seven Hours.
The alternative would be to increase the rating of the MCB and omitting overload protection on the storage heate circuit, it would be a braver man than me who does that with a storage heater circuit having seen some storage heater control failures, the heaters have thermal fuses in addition to their thermostats, but I would not consider fitting anything other than close protection on the circuit, those circuit conductors and MCBs can get pretty hot after running at full tilt for seven hours before the meter removes the supply.
You are now suggesting that MCBs need to be spaced to prevent overheating.
I have indeed done that in off-peak storage heater consumer units where the MCBs will be running fully loaded for possibly more than five hours, maybe possibly even up to seven Hours.
The alternative would be to increase the rating of the MCB and omitting overload protection on the storage heate circuit, it would be a braver man than me who does that with a storage heater circuit having seen some storage heater control failures, the heaters have thermal fuses in addition to their thermostats, but I would not consider fitting anything other than close protection on the circuit, those circuit conductors and MCBs can get pretty hot after running at full tilt for seven hours before the meter removes the supply.
