How to wire an electric meterHow to wire an electric meter

1, two wiring:

(1) Shun into the type; 1 into the fire, 2 out of the fire, 3 into the zero, 4 out of the zero.

(2) Jump-in type; 1 into the fire, 2 into the zero, 3 out of the fire, 4 out of the zero.

2, household meters are generally used for single-phase meter, meter wiring should be carried out in accordance with the specification requirements. Single-phase meter junction box generally have wiring diagrams, in the junction box from left to right there are 4 holes, into the household phase line through the air switch connected to the meter 1 hole, the zero line connected to the third hole; 2 holes line, 4 holes line were the power supply phase line and the zero line should be connected to the load; the shell for the metal should be connected to the grounding terminal.

3, before installing the meter, the meter should be the appearance of the inspection; for inductive meters, the multimeter should be used to measure the 1, 3 terminals, DC resistance is generally 560-1200 ohms. Terminals to the shell of the DC resistance of more than 500 megohms, the installation should meet the height and spacing requirements specified in the specification.