![]() Low-Voltage Electrical Installations Part 7-701: Requirements for Special Installations or Locations Locations with Tubs or showers 低压电气装置 第7-701部分:特殊装置或场所的要求 装有浴盆或淋浴的场所 |
![]() Safety of laser products—Part 3:Guidance for laser display and shows 激光产品的安全 第3部分:激光显示与表演指南 |
![]() Electrical installations of buildings-Part 7-711:Requirements for special installations or locations-Exhibitions,shows and stands 建筑物电气装置 第7-711部分:特殊装置或场所的要求-展览馆、陈列室和展位 |
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