The JN22‑40.5/31.5 indoor high‑voltage earthing switch (hereinafter referred to as earthing switch) is a newly‑developed product of our company. It complies with GB 1985‑2004 《Alternating‑current high‑voltage disconnectors and earthing switches》 and IEC 62271‑102:2002.

It is applied to 3‑phase power systems with rated voltage 40.5 kV and AC 50 Hz. It can be matched with KYN61‑40.5 and other high‑voltage switchgears, providing earthing protection during maintenance of high‑voltage electrical equipment.