Next HIMAWARI company will give you a detailed explanation:

Troubleshoot: Whether the power supply meets the standards,

FireWire (flag letter "L" Live Wire)

Zero line (flag letter "N" Naught wire)

Ground wire (flag letter "E" Earth Wire)

The difference between the live and neutral lines is that they have different voltages to ground: the ground voltage of the live line is equal to 220V; the voltage of the neutral line to ground is equal to zero (it is itself connected to the ground)

distinguish:

1. Distinguish by color: In the power cable, yellow green red represents A phase B phase C phase (three phase fire wire) blue represents zero line, yellow and green two colors represent ground wire.

2. Use the electric pen to distinguish: the fire wire will emit light when tested with the electric pen, but the zero line will not.

3. Use voltage meter to distinguish: the voltage between different phase lines (ie, the hot line) is 380V, the voltage between phase line (hot line) and zero line (or good grounding body) is phase voltage 220V, zero line and A good grounding body has a voltage of 0V.

The above is the information that HIMAWARI has compiled for you. The company's main clean light, LED lights, LED high bay lights, LED flat lights, LED lights, explosion-proof fluorescent lights welcome everyone to consult