Which Electrical Equipment Requires Protective Grounding
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1. Transformers, motors, electrical appliances, handheld and mobile electrical appliances.
2. Arrester transmission devices of power equipment.
3. Metal frames of distribution devices, distribution cabinets and frames of protection control panels.
4. Metal protection tubes for distribution lines, metal junction boxes for switches, etc.
5. Cable sheaths and power cable junction boxes, terminal box shells.
6. Pole towers of power lines equipped with lightning arresters.
7. Casings and brackets of power devices such as switches and capacitors installed on power line towers.
