I need some help to understand how my Consumer Unit should react to an interruption to the electricity supply to my house...
My Distribution Board has a 100A 100mA Time-delayed RCCB Incomer feeding 80A 30mA RCCB. When the electricity supply to the house fails, the 80A 30mA RCCB trips to OFF but the 100A 100mA (main) RCCB stays made (ON). Is this correct for a healthy system? The kitchen fridge/freezers - supplied by the 30mA side- are left with no power when the supply returns. Should the 80/30/RCCB stay 'latched' in the ON position when the 100/100/RCCB is manually tripped (not using the 'TEST' button)?
Kind regards, John
Configuration as follows...
100A 100mA Time-delayed RCCB Incomer feeding 80A 30mA RCCB
Time Delayed Split Load 18way Board
100A 100mA Time-delayed RCCB Incomer feeding...
C32 MCB (Air Con unit)
B32 MCB (Garage Power)
B6 (Lightning Upstairs)
B6 (Lighting Downstairs)
B6 (Kitchen Lighting)
80A 30mA RCCB feeding...
B20 (Conservatory Floor Heat)
B20 (Utility Sockets Radial)
B32 (Kitchen Sockets)
B32 (Downstairs Sockets)
B32 (Upstairs Sockets)
B32 (Ovens)
B32 (Hob)
[net]123648/12878_52267073.jpg View media item 12878[/net]
My Distribution Board has a 100A 100mA Time-delayed RCCB Incomer feeding 80A 30mA RCCB. When the electricity supply to the house fails, the 80A 30mA RCCB trips to OFF but the 100A 100mA (main) RCCB stays made (ON). Is this correct for a healthy system? The kitchen fridge/freezers - supplied by the 30mA side- are left with no power when the supply returns. Should the 80/30/RCCB stay 'latched' in the ON position when the 100/100/RCCB is manually tripped (not using the 'TEST' button)?
Kind regards, John
Configuration as follows...
100A 100mA Time-delayed RCCB Incomer feeding 80A 30mA RCCB
Time Delayed Split Load 18way Board
100A 100mA Time-delayed RCCB Incomer feeding...
C32 MCB (Air Con unit)
B32 MCB (Garage Power)
B6 (Lightning Upstairs)
B6 (Lighting Downstairs)
B6 (Kitchen Lighting)
80A 30mA RCCB feeding...
B20 (Conservatory Floor Heat)
B20 (Utility Sockets Radial)
B32 (Kitchen Sockets)
B32 (Downstairs Sockets)
B32 (Upstairs Sockets)
B32 (Ovens)
B32 (Hob)
[net]123648/12878_52267073.jpg View media item 12878[/net]