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In order to promote the traditional virtues of the Chinese nation of respecting, honoring and loving the elderly, during the 2021 Spring Festival, Zhu Waihui, general manager of Shanghai Zikai Electric Co., Ltd., and his party visited the elderly living in the nursing home in Shangshan Township, Jiujiang, Jiangxi, and sent condolences and gifts to the elderly, and gave sincere greetings.

Drop-out fuses are a common short-circuit protection switch. They are economical, easy to operate, and highly adaptable to outdoor environments.

High-voltage isolating switch, load switch and circuit breaker are all high-voltage electrical equipment used to close and open circuits.

The structural characteristics and functions of the load switch: The high-voltage load switch is a high-voltage electrical appliance between the high-voltage isolating switch and the high voltage. It is similar to the circuit breaker in performance and similar to the high-voltage isolating switch in structure, with a clear disconnection point.