The frequent damage of power transformer's low-voltage connection pole is studied in detail and a solution to improve its structure is proposed.

对电力配电变压器低压接线柱频繁烧损原因作了具体分析，由此提出了对低压接线柱结构进行改进的具体方案，设计出一种两段式新型导电杆。

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The design and type of switching CARDS used in an IR test system depend on several factors, including the test voltage, magnitude of resistance, accuracy, com mon connection, etc.

IR测试系统中采用的开关卡的设计和类型取决于多个因素，包括测试电压、电阻数量级、准确度、共用连接，等等。

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Uses 4-wire connection with 2 wires to line voltage and 2 wires to SPST control switch.

采用4线，2线连接到线电压，2线连接到单刀单掷控制开关。

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Like scoreboards, they also rely on modules, consisting of rows of LEDs illuminated at a lower voltage than most scoreboards and controlled over a secured Internet connection.

FORBES: Bright, Very Bright