- All dimensions are in mm
- Drawing depicts typical dimensions
- E - As supplied
- S - After free recovery
- D, d - internal diameter without adhesive coating LC - Longitudinal change
- T- Thickness
APPLICATIONS:-
Heat shrinkable Dual wall insulating tubes (With semicon layer) are used in high voltage plastic and paper insulated cable joints up to 36kv to provide insulation and insulation screen on the build up insulation over connectors the insulation layer are made from thermally stabilized cross linked with high resistance polymeric material and the semicon layer are made from thermally stabilized cross linked semi-conductive polymeric material.
| SIZE | D | B | A | LC | T | ||
|---|---|---|---|---|---|---|---|
| E | S | E | S | E | S | S | |
| min. | max. | min. | min. | min. | % | +20% | |
| GEC 001 | 12 | 4.5 | 45 | 40 | 15 | +10% | 1.2 |
| GEC 101 | 20 | 9 | 60 | 55 | 20 | +10% | 3.0 |
| GEC 101L | 20 | 9 | 110 | 100 | 35 | +10% | 3.0 |
| GEC 201 | 35 | 16 | 80 | 75 | 30 | +10% | 3.0 |
| GEC 201L | 35 | 16 | 140 | 135 | 35 | +10% | 3.0 |
| GEC 301 | 55 | 25 | 90 | 85 | 30 | +10% | 4.0 |
| GEC 301L | 55 | 25 | 150 | 140 | 50 | +10% | 4.0 |
| GEC 401 | 75 | 34 | 150 | 100 | 50 | +10% | 4.2 |
| GEC 401L | 75 | 34 | 175 | 165 | 70 | +10% | 4.2 |
| GEC 501 | 100 | 59 | 110 | 100 | 70 | +10% | 4.2 |
| GEC 501L | 100 | 59 | 190 | 180 | 70 | +10% | 4.2 |
| GEC 601 | 120 | 59 | 110 | 100 | 70 | +10% | 4.2 |
| GEC 601L | 145 | 71 | 120 | 110 | 70 | +10% | 4.6 |
| CHARACTERISTIC | TEST METHOD | |
|---|---|---|
| Specific gravity | 1.19 + 0.2 | ASTM D-1505 |
| Water Absorption | 1 %(Max.) | ASTM D-570/ISO 62 |
| Colour | Black | |
| Tensile Strength | 8N/SQMM(MIN.) | ASTM D-412/ISO 37 |
| Ultimate Elongation | 200%(Min.) | ASTM D-412/ISO 37 |
| THERMAL AGING TEST AT 120º FOR 500 HOURS | ||
| Tensile Strenght | 7 N/Sq MM(Min.) | ASTM D-412/ISO 37 |
| Ultimate ELONGATION | 100%(Min.) | ASTM D-412/ISO 37 |
| Volume resistivity | 1 × 10 ohm cm (Min.) | ASTM D 257/IEC 93 |
| DI-ELECTRICAL Strength | 10KV/MM(Min.) | ASTM D 149/IEC 243 |
| DI ELECTRICAL Constant | 5(Min.) | ASTM D 150/IEC 250 |
| CHEMIAL PROPERTIES | ||
| Fungus Resistance | <1 | ASTM G-21 |
| Salt Spray test | No pitting/No Corrosion | ASTM B-117 |
| Chemical resisant immersion in following liquids Naoh(40%)H2SO4(3%),Toluene acetone for 24 hrs.at room temp. | Good(No Visual Defects) | SCO 175 |
| Heat Shock(30.min,at 200º) | No Cracking flow | ESI-09-13 |
| Low Temp Flexbility(-40ºC) | No Cracking | ASTM D 2671 |