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Options for compliance
Option 3
Incoming switch disconnector with RCBO ways, plus two RCD protected
busbars
Option 3 is a new configuration that allows safety circuits such as smoke
alarms to be individually protected. In addition other circuits are protected
by one of two RCCB’s.
Option 2
Split load consumer unit, using RCBO’s
Option 2 shows how a split load consumer unit can be used. Safety
circuits such as smoke alarms, and other circuits such as sockets can be
individually protected by RCBOs.
Option 1
Incoming switch disconnector and outgoing RCBO’s
Option 1 is the safest option, providing each outgoing way with individual
over current, and residual current protection.
Option 4
Incoming switch disconnector feeding two RCD protected busbars
Option 4 provides two busbars each fed by an RCCB.