◆ 结构
FS系列放电球隙测压器(水平式)由活动动底座、绝缘支管、铜球、调节轴(标尺)、微调轮、水电阻等部件组成。
◆ 球隙器的使用
在作试验时将球隙器和试品并联，将球隙调整在60%试验电压。测定球隙放电时试验电压值(取3~4次平均值)，然后按同样方法测定70%和80%试验电压表读数。以此三点线值作一曲线(大多为一直线)，再延长此曲线(大多按正比例推算)至所需的试验电压高10~15%位置作为耐压验过程可能发生过电压的放电保护电压值。
◆ 一球接地的球隙适用于交流电压、负极性的雷电冲击电压和长波尾冲击及两种极性的直流电压 kV（峰值）
|
球隙距离(cm) |
球直径(cm) |
|
5 |
6.25 |
10 |
12.5 |
15 |
25 |
|
0.20 |
8.0 |
|
|
|
|
|
|
0.25 |
9.6 |
|
|
|
|
|
|
0.30 |
11.2 |
|
|
|
|
|
|
0.40 |
14.3 |
14.2 |
|
|
|
|
|
0.50 |
17.4 |
17.2 |
16.8 |
16.8 |
16.8 |
|
|
0.60 |
20.4 |
20.2 |
19.9 |
19.9 |
19.9 |
|
|
0.70 |
23.4 |
23.7 |
23.0 |
23.0 |
23.0 |
|
|
0.80 |
26.3 |
26.2 |
26.0 |
26.0 |
26.0 |
|
|
0.90 |
29.2 |
29.1 |
28.9 |
28.9 |
28.9 |
|
|
1.0 |
32.0 |
31.9 |
31.7 |
31.7 |
31.7 |
31.7 |
|
1.2 |
37.6 |
37.5 |
37.4 |
37.4 |
37.4 |
37.4 |
|
1.4 |
42.9 |
42.9 |
42.9 |
42.9 |
42.9 |
42.9 |
|
1.5 |
45.5 |
45.5 |
45.5 |
45.5 |
45.5 |
45.5 |
|
1.6 |
48.1 |
48.1 |
48.1 |
48.1 |
48.1 |
48.1 |
|
1.8 |
53.0 |
53.5 |
53.5 |
53.5 |
53.5 |
53.5 |
|
2.0 |
57.5 |
56.5 |
59.0 |
59.0 |
59.0 |
59.0 |
|
2.2 |
61.5 |
63.0 |
64.5 |
64.5 |
64.5 |
64.5 |
|
2.4 |
65.5 |
67.5 |
69.5 |
70.0 |
70.0 |
70.0 |
|
2.6 |
(69.0) |
72.0 |
74.5 |
75.0 |
75.5 |
75.5 |
|
2.8 |
(72.5) |
76.0 |
79.5 |
80.0 |
80.5 |
81.0 |
|
3.0 |
(32.5) |
79.5 |
84.5 |
85.0 |
85.5 |
86.5 |
|
3.5 |
(88.5) |
(87.5) |
95.5 |
97.0 |
98.0 |
99.0 |
|
4.0 |
|
(95.0) |
10.5 |
108 |
110 |
112 |
|
4.5 |
|
(101) |
150 |
119 |
122 |
125 |
|
5.0 |
|
(107) |
123 |
129 |
133 |
137 |
|
5.5 |
|
|
(131) |
138 |
143 |
149 |
|
6.0 |
|
|
(138) |
146 |
152 |
161 |
|
6.5 |
|
|
(144) |
(154) |
161 |
173 |
|
7.0 |
|
|
(150) |
(161) |
169 |
184 |
|
7.5 |
|
|
(155) |
(168) |
177 |
195 |
|
8.0 |
|
|
|
(174) |
(185) |
206 |
|
9.0 |
|
|
|
(185) |
(198) |
226 |
|
10 |
|
|
|
(195) |
(209) |
244 |
|
11 |
|
|
|
|
(219) |
261 |
|
12 |
|
|
|
|
(229) |
273 |
|
