2, into the line: WDZ-BYJ-3 * 16-MT32/CC, halogen-free low-smoke flame-retardant wire, specifications 3 * 16, wearing 32 thin-walled wire steel pipe, CC (floor within the floor dark laying) should be WC (wall dark laying) or CC, WC.
3, into the line circuit breaker: C50A/2P, C-type characteristics (distribution type, short-time overcurrent 7~10In), 2-pole.
4, zero grounding row: this box is set to zero row N and grounding row PE.
5, outgoing: (W3 as an example) C16A/2P, circuit breaker C type 16A 2-pole, with leakage release, leakage action current of 30mA; ZRBV-3*2.5-PC25-WC/FC, indicating that flame-retardant wires 3 2.5 specifications, wearing 25PVC pipe. It can be installed in the wall/under the ground.