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    • 8. 发明授权
    • Leakage current detection interrupter extension cord with cord diagnostics
    • 泄漏电流检测断路器延长线与电线诊断
    • US07136266B2
    • 2006-11-14
    • US10664851
    • 2003-09-22
    • Bernard J. GershenSteve CampoloJames RichterLester RiveraDavid HerzfeldRoger M. Bradley
    • Bernard J. GershenSteve CampoloJames RichterLester RiveraDavid HerzfeldRoger M. Bradley
    • H02H3/00
    • H02H3/331H02H3/16
    • In the present invention the basic detection and interruption components of an Immersion Detection Circuit Interrupter (IDCI), in combination with the line, neutral and shield conductors of an extension or appliance cord provides a new improved type of detector, a Leakage Current Detector Interrupter (LCDI) which interrupts current to a load when current leakage is detected between the line or neutral conductors of the cord and the shield conductor. The new improved LCDI detector provides, either singularly or in combination, the following advantages: Prevents the LCDI from being reset should the device become inoperative (reset lockout); Provides an indication of the integrity of the shield in the extension or appliance cord; Tests the integrity of the shield within the extension or appliance cord, in addition to testing the functionality of the LCDI; Interrupts current to the load if an electrical connection is detected between the shield and neutral, or the shield and ground, in addition to the existing detection of leakage current from the phase conductor; Allows the LCDI to trip during an open neutral condition by utilizing the ground connection as a return wire for the trip coil; and/or Provides immersion detection at the receptacle end of the extension cord in addition to protection from leakage faults.
    • 在本发明中,浸入式检测电路断路器(IDCI)的基本检测和中断部件与延长线或器具线的线,中性线和屏蔽导体组合提供了一种新的改进型的检测器,漏电流检测器断路器 LCDI),其在电缆的线或中性导体与屏蔽导体之间检测到电流泄漏时中断到负载的电流。 新的改进的LCDI检测器单独或组合提供以下优点:如果设备不工作(复位锁定),则防止LCDI复位; 提供扩展或电源线中屏蔽层完整性的指示; 除了测试LCDI的功能外,还可以测试扩展或电源线中屏蔽层的完整性; 除了检测到来自相导体的漏电流之外,如果在屏蔽和中性线或屏蔽和接地之间检测到电气连接,中断电流到负载; 通过使用接地连接作为跳闸线圈的返回线,允许LCDI在打开的中性点状态下跳闸; 和/或在延长线的插座端提供浸没检测,以及防止泄漏故障。