The Universal Power Alert (UPA) device from Marsh Bellofram Europe Ltd provides a highly visual external indication of live power or stored energy conditions existing within an electrical enclosure.rnThe company says that this device helps prevent arc flash and possible electrocution for operating and maintenance personnel, by pre-verifying that full electrical isolation conditions exist before the access door or cover is opened to any enclosure containing electrical power devices.
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机译：Marsh Bellofram Europe Ltd.的通用电源警报（UPA）设备提供了电气外壳内存在的有电功率或存储的能量状况的高度可视化外部指示。rn该公司表示，该设备有助于防止电弧闪光以及对操作和维护人员的触电伤害，通过在将检修门或盖子打开到任何包含电源设备的机壳之前预先验证是否存在完全的电气隔离条件。
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