Hello all
Just trying to increase my knowledge!
In a house that i own there are a few circuits ending back at the Consumer unit.
There are
3 Ring mains, protected by 32Amp MCB
3 Lighting radial circuit Protected by 6 AMP MCB
1 cooker Radial curcuit protected by 32 amp MCB
1 Garage supply Protected by 32 Amp MCB (4mm swa cable)
There is no RCD protection...The instalation is 15 years old!!
My question for an explanation is that on the odd occasion i will turn a light on, and the lamp "blows" this causes a 6 amp MCB to trip
As i understand a MCB is Amp rated so that if this rating is exeeded it will trip
An example may be running 14 no 100 watt lamps on a 240 volt supply on a 6amp protected radial curcuit would be ok, but running 15 no would draw 6.25 Amps causing the MCB to trip (hope this is a correct assessment)
so my question is, What exactly happens when i turn on that single light and the 6 AMP breaker trips, ???
Probably basic stuff!!
Russell
Just trying to increase my knowledge!
In a house that i own there are a few circuits ending back at the Consumer unit.
There are
3 Ring mains, protected by 32Amp MCB
3 Lighting radial circuit Protected by 6 AMP MCB
1 cooker Radial curcuit protected by 32 amp MCB
1 Garage supply Protected by 32 Amp MCB (4mm swa cable)
There is no RCD protection...The instalation is 15 years old!!
My question for an explanation is that on the odd occasion i will turn a light on, and the lamp "blows" this causes a 6 amp MCB to trip
As i understand a MCB is Amp rated so that if this rating is exeeded it will trip
An example may be running 14 no 100 watt lamps on a 240 volt supply on a 6amp protected radial curcuit would be ok, but running 15 no would draw 6.25 Amps causing the MCB to trip (hope this is a correct assessment)
so my question is, What exactly happens when i turn on that single light and the 6 AMP breaker trips, ???
Probably basic stuff!!
Russell