本帖最后由 北方郎 于 2014-8-15 09:36 编辑
喷水池电击防护的“三副药”还在。
IEC60364-7-702:2010702.410.3.101.1 Zones 0 and 1 of swimming pools and in areas of natural waters,
lakes in gravel pits and coastal and similar areas
In zones 0 and 1 only protection by SELV at a nominal voltage not exceeding 12 V a.c. or
30 V d.c. is permitted, except where 702.55.104 applies. The source of supply shall be
installed external to zones 0 and 1. Where the source of supply is installed in zone 2, 702.53
applies.
702.410.3.101.2 Zones 0 and 1 of fountains
In zones 0 and 1, only the following protective measures shall be employed:
– SELV (see Clause 414 of IEC 60364-4-41:2005), the source of supply being installed
external to zones 0 and 1; or
– automatic disconnection of supply (see Clause 411 of IEC 60364-4-41:2005) using a
residual current protective device with a rated residual operating current not exceeding
30 mA; or
– electrical separation (see Clause 413 of IEC 60364-4-41:2005), the separation source
supplying a single item of equipment and being installed external to zones 0 and 1.
702.410.3.101.1 游泳池的0区和1区以及天然水区、沙砾坑湖泊、海边和类似区域 除采用702.55.104条所述之外,0区和1区只允许采用标称电压不大于交流12V或直流30 V的SELV保护方式。其供电电源应装在0区和1区之外。当供电电源装在2区时,执行702.53条的规定。
702.410.3.101.2 喷泉的0区和1区(不让人进入的喷泉) 在0区和1区内只能采用下列保护措施: - SELV(见GB16895.21—2011的414节),其供电电源装在0区和1区之外;或 - 采用额定剩余动作电流不大于30 mA的剩余电流保护器自动切断电源(见GB16895.2 —2011的411节);或 - 电气分隔(见GB 16895.21—2011的413节),分隔电源仅向一台设备供电,其供电电源装在0区和1区之外。 |