Inspection methods and requirements after installation of lighting Pole Top Box

How to inspect the lighting Pole Top Box after installation and what are the requirements?

1. The connection between conductor and appliance shall comply with the following provisions:

The connection shall be firm and tight without damaging the wire core, and the pressing plate shall not be loose during connection; During bolt connection, there shall be no more than two wires on the same terminal, and the anti loose washer and other accessories shall be complete.

2. The laying of protective grounding branch lines for electrical equipment, appliances and non live metal parts shall comply with the following provisions:

The connection shall be tight and firm, the section of protective grounding wire shall be selected appropriately, the parts to be protected against corrosion shall be painted evenly without omission, the line direction shall be reasonable, the color standard shall be accurate, and the equipment and buildings will not be polluted after painting.

3. Test method: observation and inspection.

4. Allowable deviation:

The height of lighting Pole Top Box is less than 50mm, and the allowable deviation is 1.5mm.

The height of lighting Pole Top Box (panel) is more than 50mm, and the allowable deviation is 3mm.

5. Inspection method: measure with hanging line and ruler.

The lighting Pole Top Box is a basic distribution device that reasonably combines and assembles the residual current action protector and air circuit breaker, so as to realize the centralized control of household power supply and the protection functions of grounding, overload and short circuit.