Cixi Jinhao Communication Equipment Co., Ltd.
1. The protective grounding must be marked clearly.
2. The grounding device is connected with the metal reinforcement core, the metal tide barrier layer and the armor layer in the cable. The cross-sectional area of the grounding wire must be no less than 6 mm.
3. Voltage withstand level: the withstand voltage between grounding device and box and frame is not less than 3000V (DC), no breakdown and no arc in 1 minute.
4. Insulation Resistance: The insulation resistance between the grounding device and the box metal work piece must be no less than 2 x 10 ^ 4M, and the test voltage is 500V DC.
Cixi Jinhao Communication Equipment Co., Ltd. is a professional manufacturer of optical cable divider box.
