Type 4 enclosures are intended for use indoors to protect the enclosed equipment against splashing water, seepage of water, falling or hose directed water,severe external condensation.
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- 类型4外壳适用于室内,用来保护壳内设备不受喷洒水的侵蚀,渗水,水瀑或软管道流出的水,以及严重的外部凝结水的页面。