Non Tracking Tube
Heat Shrinkable Non Tracking Tubings provide environmental protection against chemical pollution and UV rays to the cable cores of Plastic and Paper insulated cable terminations rated up to 36kV. These tubes provide tracking resistance to the terminations. the Non Tracking Tubings are made from thermally stabilised cross linked non tracking and weather resistant polymeric material.
Low Voltage Insulating Tubes
Heat Shrinkable LV Insulating Tubes provide environmental protection to the cable cores of Plastic and Paper insulated cable terminations and insulation over the connector area in straight through joints rated up to 1.1kV. The Insulating Tubes are made from thermally stabilised cross linked polyolefin based and weather resistant polymeric material. The Tubes can be supplied internally coated with Hot Melt Adhesive.
High Voltage Insulating Tubes
Heat Shrinkable HV Insulating Tubes are used to build up insulation over the connector area in High Voltage Plastic and Paper insulated cable straight through joints rated up to 36kV. The Insulating Tubes are made from thermally stabilised cross linked high resistance polymeric material.
Corrosion Protection Tubes
Heat Shrinkable Corrosion Protection Tubes provide environmental sealing to the cable straight through joints for Plastic and Paper insulated cables up to 36kV. The Tubes are made from thermally stabilised cross linked polyolefin based and weather resistant polymeric material. The Tubes are internally coated with Hot Melt Adhesive.
| Technical Specifications | ||
|---|---|---|
| Characteristics | Value | Test Method |
| Physical Properties | ||
| Specific gravity | 1.25 0.2 | ASTM D-1505 |
| Tensile strength | 10 N/sqmm (min) | ASTM D-412 / ISO-37 |
| Ultimate elongation | 350 % (min) | ASTM D-412 / ISO-37 |
| Water absorption | 0.2 % (max) | ASTM D-570 / ISO-62 |
| Shrink ratio | 2 : 1 ( min ) | ASTM D 2671 |
| Longitudinal Change | 10 % | ESI 09 - 13 |
| Hardness | 45 3 shore D | ASTM D-2240 |
| Thermal Tests | ||
| Thermal Ageing 120C X 500 hrs | ||
| Tensile Strength | 8 N/sqmm (min) | |
| Ultimate Elongation | 300% (min) | |
| Low temp. flexibility (- 40 C) | No cracking | ASTM D-2671 |
| Flammability | Routine Self extinguishing | ASTM D-2671-B |
| Electrical Properties | ||
| Volume resistivity | 1 x 1012 ohm-cm (min) | ASTM D-257/ IEC-93 |
| Dielectric Strength | 8 KV / mm (min) | ASTM D-149/ IEC-243 |
| Dielectric Constant | 3.5 (max) | ASTM D-150/ IEC-250 |
| Chemical Properties | ||
| Fungus resistance | < 1 | ASTM G-21 |
| Chemical Resistance immersion in following liquids. NaOH(40%), H2So4(3%), Toluene, Acetone for 24 hrs at room temp. | Good (No change in appearance) |
ISO -175 |
| Salt Spay Test | No pitting / No Corrosion | ASTM B-117 |