Power Fittings Are Used In Such An Environment
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1.aerial electrical fitting The altitude shall not exceed 1000m.
2.power line hardware The temperature of the surrounding medium shall not be higher than +40℃ and not lower than -30℃ Note: When the height and temperature of the surrounding medium cannot meet the above conditions, an isolating switch may be used according to the requirements of the on-site environment. National standard GB311-64.
