求翻译：现场照明必须使用安全电压；行灯电压不得36伏，行灯必须带有金属保护罩，在潮湿场所或金属容器内作业时，行灯安全电压不得超过12伏。是什么意思？

On-site lighting must be safe voltage; not 36 volt line voltage lamp, daytime running lights must be protected with a metal cover, metal container in damp areas or when operating, the line voltage security lights shall not exceed 12 volts.

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The scene illumination must use the safe voltage; The portable lamp voltage does not have 36 volts, the portable lamp to have to have the metal to guarantee the guard shield, when moist place or metal container work, the portable lamp safe voltage does not have to surpass 12 volts.

Scene lighting must use a safe voltage; line lamp voltage shall not 36 Volt, light must include a metal mask, in a damp place or in a metal container operations, light safety voltage must not exceed 12 volts.

Scene lighting must use a safe voltage; line lamp voltage shall not 36 Volt, light must include a metal mask, in a damp place or in a metal container operations, light safety voltage must not exceed 12 volts.