The table above can be used as a guide to selecting a suitable fuse or breaker for a given power rating of appliance. The cable size shown is for the standard reference method C (assuming grey 70°C twin and earth) and the maximum length of the circuit is also shown. Other factors may affect your…
Month: June 2021
SELECTING CABLE SIZE to match FUSE SIZE
Use the table above as initial guidance in your choice of cable size for the standard reference method C (assuming grey 70°C twin and earth) Other factors may affect your choice of cable size when you factor in higher ambient temperatures, different installation conditions, grouping etc.
QUICK GUIDE TO SPURS ON SOCKETS
Begin by deciding on the type of circuit that is already installed – RING or RADIAL Now select the correct breaker size the table will tell you … A. The minimum size CSA of cable to use B. The maximum number and arrangement of spurs for that type of circuit. C. If an FCU is…