Periodic check the breaker, switchgear, operation unit, protection device, transformer, capacitor, UPS, lighting fixture working status;

定期检查各开关，操作机构，保护装置，变压器，电容器，UPS照明设施等设备的工作状况；

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These products are used in telecommunications networks, computer-controlled systems, security systems, emergency lighting, electric utilities and switchgear, medical equipment, rail signaling, renewable energy, and military and aviation equipment.

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