Pay attention to the details of the incoming and outgoing lines of the Smart Meter Pole Top Box

The product of electric Smart Meter Pole Top Box has long been integrated into people's daily life, which is well known. Although most friends know the product of meter box, few friends really understand the product of meter box, such as "what details should be paid attention to in and out of the installation of meter box". I believe that many friends still don't understand it. Here is a brief explanation of the precautions for in and out of the installation details of meter box:

1. The insulated copper wire of each meter wiring shall not be less than 4mm2, and the RS485 circuit wire shall not be less than 0.5mm2.

2. The neutral wire of each electric energy meter in the multi meter position metering box shall be installed separately and shall not be shared.

3. Insulated and flame-retardant wires shall be used in the metering box, and the color code shall be: the phase line shall be yellow, green and red; The zero line is black; The PE line is yellow and green.

4. The creepage distance of incoming unit is greater than 12mm, the electrical interval is greater than 10mm, and the creepage distance of outgoing unit is greater than 8mm.

5. The incoming switch room shall be equipped with auxiliary terminals used by the collector.

6. Trunking wiring is also adopted in the metering box, with independent incoming and outgoing lines, reasonable wiring design and qualified technology.

7. Each meter position shall be numbered, and the "property right dividing point" sign shall be set on the incoming line at the outgoing end of the meter.

We need to remember the details of the installation of the electric box. We need to pay attention to this point. Although we don't need to operate by ourselves, it's good to understand the common sense of meter box and enrich our brain.