开关避雷器

序号Number

名称Designation

材料Material

电镀Electroplating

1

螺套Swivel nut

黄铜棒Br* rods

Ni

2

外壳Hull

黄铜棒Br* rods

Ni

3

插孔Plughole

锡青铜棒Bronze Bar

Au

      4

插针Contact pin

黄铜棒Br* rods

Au

5

内导体Inner conductor

黄铜棒Br* rods

Au

6

密封件Sealing element

硅橡胶Silicon rubber

7

*缘介质Dielectric

聚四氟乙烯PTEE

8

标准件 SC

不锈钢Stainless

测试项目Testitem

标准要求Standard request

起始放电电压(V)

Initial discharge voltage

75/90/150/230V

峰值放电电压(V)

Peak discharge voltage

1000V

峰值放电电流(KA)

Peak discharge current

20

耐压AC(Vmin) Pressure

2500V  1min无击穿、无飞弧现象

2500V  1min No breakdown and no

arcing phenomenon

频率范围(MHz)Frequency Range

0-3000

额定功率(w)Peak Power

200

*损耗(dB)Insertion Loss

≤0.5

驻波比(dB)V.S.W.R.

≤1.20

特性阻*（Ω）Impedance

50

接触电阻(常 态)(MΩ)

Contact resistance

内导体(MΩ)

Inner conductor

≤1

外导体(MΩ)

Outer conductor

≤1

*缘电阻(常态)(MΩ)

Insulation Resistance

  ≥5000

重 量（g）Weight

125