The electrical appliances work well.
Contactors, relays and other electrical appliances have good effects. If the contact is burnt out, it should be removed, polished and trimmed. When the setting value is correct, the electrical component will sound like a constant peak.
Instrument indication is accurate
The instrument shell is clear and complete without cracks, the pointer is not stuck, and the return to zero is good.
The indicator light is clear and complete
The indicator light is undamaged, clear and complete.
The panel label has been completed.
The panel label is complete and clear.
The wiring is neat and firm.
Wiring should be arranged neatly, terminal bolts and washers should be complete, wiring should be firm and not loose, and the number of wiring sleeve should be clear and correct.
The fuse meets the requirements.
The fuse is blown in accordance with the regulations, and the porcelain seat is not damaged or slipped.
Flexible switch, no noise
Air switch, button switch, flexible switching action, no vibration and hum.
The whole installation is very firm.
The power distribution cabinet is firmly installed without inclination, and the grounding protection line works well.