Whether a Circuit Will Actually Disconnect in Time ZS
A Type C breaker tolerates half the loop impedance a Type B does. Swapping one in to stop nuisance tripping can leave a circuit that no longer disconnects.
The circuit
The cable
The resistance per metre is yours, from your copy of the tables. The list here is a convenience and is meant to be checked: a figure invented by a web page could size a cable that burns.