在爆炸性粉尘环境内，下列关于插座安装的论述哪一项是错误的（）。-查字典考试网

在爆炸性粉尘环境内，下列关于插座安装的论述哪一项是错误的（）。

A、不应安装插座
B、应尽量减少插座的安装数量
C、插座开口一面应朝下，且与垂直面的角度不应大于
D、宜布置在爆炸性粉尘不易积聚的地点

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