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WANGYUAN 架空绝缘导线金具
ELELCTRIC TECHNOLOGY Ltd. Aerial Insulation Conductor Fitting

穿刺型外间隙避雷器

Outer-gap arresters(piercing type) A

原理与特点 /Principle and Features

穿刺型外间隙避雷器适用于配电 10kV 架空绝缘导线，其采用了专利设计的穿刺型引弧头结构，可穿透导线 配变电金具 Hotels substation fittings
绝缘层形成电气连接；引弧头下端与避雷器上端的引弧头相对，形成一个间距 60~130mm 的串联外放电间隙，
其距离通过避雷器下部的两块安装板相对移动来调节。在正常状态下，高阻性的避雷器电阻片和放电间隙不
动作；只有超过规定雷电过电压出现时，放电间隙才能被击穿，形成短路通道，接续的工频电弧便在外间隙
间燃烧，释放过电压能量，以保护导线免于烧伤。电压释放后，避雷器电阻片恢复高阻性，间隙放电停止。
Piercing the outer gap arrester suitable for distribution 10kV overhead insulated wire, which uses a
patented puncture-type arc head structure designed to penetrate the wire insulation electrical connection;
arc arc head head lower and upper ends of the arrester relative, forming a series 60 ~ 130mm pitch
outside a discharge gap, and its distance from the lower portion of the arrester by two relatively moving
the mounting plate is adjusted. Under normal conditions, the high resistance of the discharge gap arrester
varistor and no action; only exceeds the lightning overvoltage occurs, the discharge gap can break down
to form a short-circuit channel, successive frequency gap between the outer arc will burn, release over-
voltage energy, in order to protect the wire from burns. After the release voltage arrester varistor recovery
highly resistive gap discharge stop.

穿刺型外间隙避雷器参数及选型表
Piercing the outer gap arrester parameters and selection table

雷电冲击
系统标称 额定电压 直流参考 工频耐受 夹线范围
产品型号 50% 放电电
电压 kV kV 电压 kV 电压 kV (mm)
压 kV
FHY5C-10C-1 10 13 ≥ 20 ≥ 80 <160 16~22
FHY5C-10C-2 10 13 ≥ 20 ≥ 80 <160 22~28
FHY5C-10C-3 10 13 ≥ 20 ≥ 80 <160 26~30

适用 绝缘层 导体 适用
产品型号
导线规格 外径 (mm) 直径 (mm) 力矩 (Nm)
JKLY-50~120 8.5~13 16.1~21
FHY5C-10C-1 23
JKLGY-35/6~95/20 7.75~13.18 16.6~22
JKLY-120~240 14.6~18.4 22.6~26.4
FHY5C-10C-2 26
JKLGY-120"~185/45 13.718~18.62 22.6~27.4
JKLY-300 20.6 28.6
FHY5C-10C-3 28
JKLGY-240/30~240/40 20.52~20.58 29.3~29.4

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