CN2044352U - 高压线漏电带电报警器 - Google Patents

高压线漏电带电报警器 Download PDF

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Publication number
CN2044352U
CN2044352U CN 89210794 CN89210794U CN2044352U CN 2044352 U CN2044352 U CN 2044352U CN 89210794 CN89210794 CN 89210794 CN 89210794 U CN89210794 U CN 89210794U CN 2044352 U CN2044352 U CN 2044352U
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China
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alarm
leakage
high voltage
voltage cable
line
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CN 89210794
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English (en)
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李玉泉
李萍
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Individual
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Priority to CN 89210794 priority Critical patent/CN2044352U/zh
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Abstract

高压线漏电带电报警器,由集成块JEC-2和互补高频振荡器电路等组成,使该报警器体积小,灵敏度高、功能齐全。该报警器可置入电工人员的安全帽中,使操作人员工作更方便和安全。

Description

本实用新型涉及一种高压线漏电带电报警器。
目前市场上出售的高压线漏电带电报警器,均为单一功能的。由于线路采用的是半导体管分离件式,使该报警器体积大,携带不方便,灵敏度低。
本实用新型的目的是设计一种功能齐全、体积小、灵敏度高的高压线漏电带电报警器。
本实用新型是这样实现的:高压线漏电带电报警器,由互补音频振荡器和感应线等组成,其特征是:互补音频振荡器的输入端并联集成块JEC-2。
本实用新型的优点是:功能齐全、体积小、灵敏度高。
下面结合附图对本实用新型做进一步说明:
附图中:
L感应线,JEC-2集成块,R3电阻,R4可变电阻,R7电阻,C8电容,BG1,BG2三极管,RL蜂鸣器。
当感应线L接近高压线在0.8~1米范围内时,只要在集成块JEC-2输入端产生10μA以上的电流,就使集成块JEC-2的输出端由低电位变为高电位,触发由BG1,BG2组成的互补音频振荡器推动蜂鸣器RL发出声响达到报警。
电阻R3和可变电阻R4组成偏置电路,可变电阻R4又起到调节音量作用;电阻R7和电容C8组成正反馈电路,改变电容C8的容量可以改变音调。

Claims (1)

1.高压线漏电带电报警器,由互补音频振荡器和感应线等组成;其特征是:互补音频振荡器的输入端并联集成块JEC-2。
CN 89210794 1989-02-03 1989-02-03 高压线漏电带电报警器 Pending CN2044352U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89210794 CN2044352U (zh) 1989-02-03 1989-02-03 高压线漏电带电报警器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89210794 CN2044352U (zh) 1989-02-03 1989-02-03 高压线漏电带电报警器

Publications (1)

Publication Number Publication Date
CN2044352U true CN2044352U (zh) 1989-09-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89210794 Pending CN2044352U (zh) 1989-02-03 1989-02-03 高压线漏电带电报警器

Country Status (1)

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CN (1) CN2044352U (zh)

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