KNOWLEDGE

The busof three-phase AC circuit shall be painted with black, and color code shall be pasted in conspicuous places. Phase A shall be yellow, phase B shall be green, and phase C shall be red. Neutral line or neutral line shall be painted with light blue.Use alternating yellow and green paint for safety grounding cables. If polarity and phase sequence cannot be distinguished, apply white paint.

Copper and copper alloy grades in various countries

Copper shall be stored in clean and dry warehouses according to different composition and grades , and shall not be stored with acid, alkali and salt materials

In the choice of soft connection, people will always in entangled with copper braided wire or copper stranded wire. And both in addition to the difference in appearance, the use of the process also shows different characteristics, but fortunately, their role is the same, so the application object is basically similar.