Construction
Conductors
- Annealed bare copper compact class B strand.
- Extruded strand shield.
Insulation
- Ethylene propylene rubber (EPR).
- Insulation colored to contrast with black conducting shield layers.
Composite Insulation Shield & Jacket
- Six corrugated copper drain wires embedded in an extruded black conducting chlorinated polyethylene (CPE-130) composite insulation shield and jacket.
- Meets or exceeds the requirements of:
- ICEA S-68-516 and AEIC CS6 standard for EPR Insulated wire and cable.
- UL 1072 for medium voltage solid dielectric cable.
Application
- Commercial, industrial and utility projects such as pulp and paper mills, petrochemical plants, steel mills, textile mills, water and sewage treatment facilities, environmental protection systems, ailroads, mines and both fossil fuel and nuclear powered generating stations.
Features
- Acceptable for use in OSHA regulated installations.
- UL listed as type MV-90 for use in accordance with the NEC.
- Sizes 250 MCM and larger are also listed "for CT use" in accordance with the NEC.
- Compact conductor and simultaneous extrusion of strand shield. Insulation and insulation shield combine to form a virtually perfect cable core.
EPR Insulation Advantages
- Excellent heat and moisture resistance.
- Outstanding corona resistance.
- Flexibility for easy handling.
- High dielectric strength.
- Low moisture absorption.
- Electrical stability under stress.
- Low dielectric loss.
- Chemicals and radiation resistance.
- EPR insulation is colored for contrast with black conducting layers to simplify cable preparation for more reliable splices and terminations.
- Combination drain wire shield and jacket provides high short circuit capability and uniform shield impedance. Embedded drain wires will not bunch up and will resist corroding.
- Chlorinated polyethylene (CPE) jackets have excellent moisture, chemical and flame resistance. CPE is a tough jacketing material easily surviving severe installation procedures, including the north slope in alaska.
