Have read the DIY info FWL_Engineer has hosted at the Franklin Wood site and it raised my techie interest in the subject of RCDs etc.
I'm guessing the provision of a RCD-equipped socket outlet (as suggested for an internal socket used for external equipment) on a circuit protected by an MCB at the (RCD equipped) Consumer Box is important due to different ratings of the two RCDs.
But what's the difference between using an RCD equipped socket outlet with a MCB at the CB and just using a RCBO? Doesn't the latter fulfill the services of both an RCD and MCB?
I'm guessing the provision of a RCD-equipped socket outlet (as suggested for an internal socket used for external equipment) on a circuit protected by an MCB at the (RCD equipped) Consumer Box is important due to different ratings of the two RCDs.
But what's the difference between using an RCD equipped socket outlet with a MCB at the CB and just using a RCBO? Doesn't the latter fulfill the services of both an RCD and MCB?