24kV Earthing Switch, JN15-24/31.5

1. General description
    JN15-24/31.5 indoor high voltage earthing switch is the latest earthing switch developed by our company. This product has the characteristics of advanced design, simple and compact structure, reliable technical performance, etc. It meets the requirements of GB1985-2004 《AC high voltage isolating switch and earthing switch》 and IEC62271-102:2002, and is suitable for indoor 24KV three-phase AC 50(60)Hz power system; it has the ability of short-circuit closing to protect other electrical equipment in the switchgear from damage, and can be used with various high-voltage switchgear as a earthing protection during maintenance of high-voltage electrical equipment.

2. Environmental conditions

• The altitude shall not exceed 1000 meters;

• Ambient air temperature: upper limit + 40 ℃, lower limit - 25 ℃;

• The earthquake intensity shall not exceed 8 degrees;

• The daily average value of relative temperature shall not be greater than 95%, and the monthly average value shall not be greater than 90%;

• Pollution level: ll.

3. Main technical parameters