2. In terms of the appearance of
US gauge terminal , the contact surface should be clean and free from cracks, obvious scars, burrs, corrosion spots, concave and convex defects and other defects affecting electrical contact and mechanical strength. In addition, there shall be no defects such as air holes, sand holes and cracks in the contact surface and connection holes of the cast-molded US gauge terminal. In addition, the connection surface of the terminal of the US gauge shall be flat, and the connection hole shall not have burrs.
Precautions: Burrs on the surface of the terminal and the connection port are common problems of inferior US gauge terminals. When purchasing
US gauge terminal , it should be carefully checked to avoid affecting the operation of the equipment after use.
3. When testing at an ambient temperature of 10 ℃ to 40 ℃, the temperature rise of
US gauge terminal shall not exceed the provisions of the corresponding equipment standard. Due to the different operating environment of each high-voltage equipment, the temperature appreciation allowed by the US gauge terminals is also different. When the equipment leaves the factory, the terminal of the US gauge shall be equipped with matching fasteners for boundary, such as nuts, bolts and washers. And should have anti-loose design. It is recommended to use a large wrench to tighten the connection terminals of the equipment or when the connection terminals of the equipment are electronically connected to the high-voltage power system.
