Product Description of 3M Scotch Electrical Semi-Conducting Tape 13
3M Scotch Electrical Semi-Conducting Tape 13 is an EPR-based (Ethylene Propylene Rubber) semiconductor material designed to connect high-voltage terminals. The tape remains stable without plasticizing and maintains consistent conductivity over a wide temperature range. Its conductivity is unaffected except by low-viscosity oils, and it does not alter the conductivity of the semi-conductive cable sheath.
Key Features of 3M Scotch Electrical Semi-Conducting Tape 13
- Semiconducting (Low Resistivity): Provides durable electrical conductivity.
- Sustained Conductivity: Maintains stable performance over time.
- Flexibility: Easily elongates to accommodate irregular shapes.
- High-Temperature Stability: Remains effective at temperatures up to 130°C (266°F).
- Compatibility: Works with most insulating materials and conductors; suitable for high-voltage connectors and terminations.
- Durability: Resistant to tearing and passes tests under UV exposure, humidity, and solvents.
- Versatile Use: Suitable for both outdoor and indoor applications.
- Standards Compliance: Meets ASTM-D-4388, Type IV.
Key Applications
- Replacement of Semi-Conductive Layers: Used to replace the semi-conductive layer beneath the metallic shield in junction boxes and for repairing medium-voltage cables.
- Electric Field Management: Creates a uniform electric field around high-voltage splices by bonding with the insulating material, thereby reducing electric field stress.
- Voltage Equalization: Balances the electric field around the bolted joints of insulator bars.
- Shielding: Forms a protective shield for splices in solid-insulated cables.
- Important Note: This product is not intended for insulation purposes.
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Physical Properties
| Property | Test Method | Value | Unit |
|---|---|---|---|
| Temperature Rating | – | Normal: 194°F (90°C) Field Repair: 266°F (130°C) | – |
| Thickness | ASTM D-4325 | 30 | mils |
| Tensile Strength | ASTM D-4325 | 6 | lbs/in |
| Elongation | ASTM D-4325 | 800 | % |
| Melt Test | ASTM D-4388 | Passed | – |
Electrical Properties
| Property | Test Method | Value | Unit |
|---|---|---|---|
| Resistivity | ASTM D-4325 | 103 | ohm-cm |
