overhead line cover silicone rubber coated for protecting conductor
Description
RUBNS-OLC Overhead Line Insulation Split Rubber Tube The innovative product design, ease of installation. Use silicon rubber material, anti-aging, corrosion resistance, with good resistance to corona resistance, high temperature performance, especially suitable for the protection of the bare wire. Widely used in substation protection works and railway catenary system, a significant effect in the cross-lines.
Technical Performance
| Serial No. |
Properties |
Unit |
Standard Data |
Test Results |
Test Methods |
| 1 |
Electrical Strength Test |
kV/mm |
≥20 |
22 |
GB/T 1408.1-2006 |
| 2 |
Volume Resistivity |
Ω·cm |
≥1×1014 |
2×1014 |
GB/T 1410-2006 |
| 3 |
Dielectric Constant |
|
2~3 |
2.3 |
GB/T 1409-2006 |
| 4 |
Shore Hardness |
A |
70±5 |
71 |
GB/T 531 |
| 5 |
Mechanical Properties |
|
|
|
GB/T 528 |
| 5.1 |
Before heat ageing |
|
|
|
| |
Tensile Strength |
MPa |
≥4.0 |
5.5 |
| |
Elongation at break |
% |
≥200 |
243 |
| 5.2 |
After Heat ageing(180ºC, 7d) |
% |
±30 |
13 |
| |
Tensile Strength Change
Elongation Change |
% |
±30 |
-22 |
| 6 |
Low Temperature Elongation(-15ºC, 2h) |
% |
≥20 |
190 |
GB/T 2951.4-1997 |
| 7 |
Low Temperature Flexibility(-50ºC, 4h) |
- |
No cracks |
No cracks |
UL224-2004 |
| 8 |
High Temperature Crack Resistance(155ºC, 2h) |
- |
No cracks |
No cracks |
GB/T2951.6-1997 |
Product dimensions
| LJ Stranded Wire Cross-sectional Area(Nominal) |
O.D. Of LJ Stranded Wire(mm) |
Silicone Rubber Sleeving Covers Models(mm) |
| 50 |
9.00 |
12 |
| 70 |
10.80 |
12 |
| 95 |
12.48 |
17 |
| 120 |
14.25 |
17 |
| 150 |
15.75 |
20 |
| 185 |
17.50 |
20 |
| 210 |
18.75 |
24.2 |
| 240 |
20.00 |
24.2 |
| 300 |
22.40 |
24.2 |
| 400 |
25.90 |
30 |
| 500 |
29.12 |
32 |
| 630 |
32.67 |
35 |
| 800 |
36.90 |
39.8 |
| LGJ Stranded Wire& LGJF Stranded Wire Cross-sectional Area(Nominal) |
O.D. Of LJ Stranded Wire(mm) |
Silicone Rubber Sleeving Covers Models(mm) |
| 35 |
-- |
12 |
| 50 |
-- |
15.6 |
| 70/10 |
11.4 |
17 |
| 70/40 |
13.6 |
17 |
| 95/15 |
13.61 |
17 |
| 95/20 |
13.87 |
17 |
| 95/55 |
16 |
17 |
| 120/7 |
14.5 |
20 |
| 120/20 |
15.07 |
20 |
| 120/25 |
15.74 |
20 |
| 120/70 |
18 |
20 |
| 150/8 |
16 |
20 |
| 150/20 |
16.67 |
20 |
| 150/25 |
17.1 |
20 |
| 150/35 |
17.5 |
20 |
| LGJJ-120 |
15.5 |
20 |
| LGJJ-150 |
17.5 |
20 |
| LGJQ-150 |
16 |
20 |
| 185/10 |
18 |
24.2 |
| 185/25 |
18.9 |
24.2 |
| 185/30 |
18.88 |
24.2 |
| 185/45 |
19.6 |
24.2 |
| 210/10 |
19 |
24.2 |
| 210/25 |
19.98 |
24.2 |
| 210/35 |
20.38 |
24.2 |
| 210/50 |
20.86 |
24.2 |
| 240/30 |
21.6 |
24.2 |
| 240/40 |
21.66 |
24.2 |
| 240/55 |
22.4 |
24.2 |
| LGJJ-185 |
19.6 |
24.2 |
| LGJJ-240 |
22.4 |
24.2 |
| LGJQ-185 |
18.4 |
24.2 |
| LGJQ-240 |
21.6 |
24.2 |
| 400/20 |
26.91 |
32 |
| 400/25 |
26.64 |
32 |
| 400/35 |
26.82 |
32 |
| 400/50 |
27.63 |
32 |
| 400/65 |
28 |
32 |
| 400/95 |
29.14 |
32 |
| 500/35 |
30 |
32 |
| 500/45 |
30 |
32 |
| 500/65 |
30.96 |
32 |
| 800/55 |
38.4 |
39.8 |
| 800/70 |
38.58 |
39.8 |
| 800/100 |
38.58 |
39.8 |
Voltage Ratings/Wall Thickness
| Voltage(KV) |
≤10KV |
≤35KV |
≤110KV |
≤220KV |
| Thickness |
2.0±0.3mm |
2.6±0.4mm |
4.0±0.5mm |
6.0±1.0mm |
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