
复合半导管是外层半导、内层绝缘的复合管,主要用于提高电缆连接的可靠性,并能简化安装工艺。
试验性能
主要性能 |
外绝缘管 |
内绝缘管 |
应力管 |
复合导电管 |
护套管 |
户外 |
户内 |
硬度 |
80 |
85 |
90.0 |
84 |
90 |
90 |
拉伸强度 |
8.0 |
10.0 |
15.0 |
13.0 |
12.0 |
14.0 |
断裂伸长率% |
300 |
350 |
400 |
350 |
400 |
400 |
热老化 120℃,168h |
0.9 |
0.8 |
0.95 |
0.85 |
0.85 |
0.85 |
氧指数 |
--- |
28 |
--- |
--- |
--- |
--- |
吸水率% |
--- |
--- |
<0.1 |
--- |
--- |
<0.1 |
耐油性 |
--- |
--- |
0.93 |
--- |
--- |
--- |
体积导电率Ω.cm |
1014 |
1014 |
1016 |
1010-12 |
5×102 |
1014 |
击穿强度KV/mm |
30 |
25 |
30.0 |
--- |
--- |
--- |
耐漏电痕电压KV |
4.5 |
--- |
--- |
--- |
--- |
--- |
介电常数 |
--- |
--- |
--- |
12-25 |
--- |
--- |
产品规格:
型号规格 |
收缩前尺寸(mm) |
自由收缩后尺寸(mm) |
适用电缆截面积(mm) |
外径 (±1vmm) |
内径 (±1vmm) |
总壁厚(±1vmm) |
半导层壁厚 (±1vmm) |
外径 (±1vmm) |
内径 (±1vmm) |
总壁厚 (±1vmm) |
30/12 |
39.0 |
33.6 |
2.8 |
0.9 |
23 |
12 |
5.5 |
25~50 |
40/15 |
48.4 |
43.0 |
2.8 |
1.2 |
27 |
15 |
5.8 |
70~120 |
45/21 |
55.2 |
47.4 |
4.0 |
1.2 |
35 |
21 |
6.6 |
150~240 |
50/26 |
59.0 |
50.6 |
4.3 |
1.5 |
40 |
26 |
6.8 |
300 | [1] |