CU MV-105 Copper Single Conductor Medium Voltage Cable

EPR/PVC or TR-XLPE/PVC Insulation with Copper Tape Shield

Product Overview

CU MV-105 Copper Single Conductor Medium Voltage Cable is designed for reliable power distribution in industrial, commercial, utility, petrochemical, and power generation applications. It features a copper conductor, semi-conducting shields, medium-voltage insulation, a copper tape metallic shield, and a protective PVC outer jacket.

Two insulation options are available: EPR (Ethylene Propylene Rubber) and TR-XLPE (Tree-Retardant Cross-Linked Polyethylene). EPR insulation is suitable for applicable 15kV, 25kV, and 35kV cable designs, while TR-XLPE insulation is available according to the specified voltage rating and cable construction.

The two options share the same general cable structure but differ in insulation material, flexibility, and electrical design characteristics. The appropriate construction is selected according to voltage rating, installation conditions, and project requirements.

Specifications

Note: Voltage ratings, insulation thicknesses, and certification vary by insulation system and cable design. Refer to the applicable technical data sheet for verified values.

APPLICATIONS

• Industrial power distribution systems

• Commercial buildings and facilities

• Utility substations

• Power generation plants

• Refineries and petrochemical facilities

• Industrial manufacturing plants

• Underground duct and conduit installations

• Cable tray installations, where permitted by applicable codes

• Medium-voltage electrical infrastructure projects

INSULATION OPTIONS

Option A – EPR/PVC Insulation

EPR (Ethylene Propylene Rubber) insulation is designed for medium-voltage power cables requiring reliable dielectric performance and flexibility. It is suitable for applicable 15kV, 25kV, and 35kV cable designs.

EPR is commonly selected where cable flexibility and ease of handling are important considerations. Insulation thickness, electrical characteristics, and temperature rating depend on the selected compound and cable design.

Key Characteristics

• Flexible rubber-based insulation

• Reliable dielectric performance

• Suitable for multiple medium-voltage ratings, subject to design

• Appropriate for industrial and utility power distribution

• Available with a protective PVC outer jacket

Option B – TR-XLPE/PVC Insulation

TR-XLPE (Tree-Retardant Cross-Linked Polyethylene) insulation is designed for medium-voltage applications requiring enhanced resistance to water-tree degradation. Its cross-linked polyethylene structure provides electrical insulation and thermal performance for appropriately designed power cables.

The specified 15kV reference construction uses 220 mil insulation at a 133% insulation level. These values apply only to that reference construction and must not be assumed for other voltage ratings.

Key Characteristics

• Cross-linked polyethylene insulation

• Enhanced resistance to water-tree degradation

• Stable electrical performance in appropriately designed cable systems

• Suitable for medium-voltage power distribution

• Available with a protective PVC outer jacket

STANDARDS

Applicable standards depend on the selected insulation system, rated voltage, cable construction, and certification scope. They may include:

• UL 1072, where applicable

• AEIC CS8, where applicable

• ICEA S-93-639 / NEMA WC74, where applicable

• ICEA S-97-682, where applicable

• ASTM B3

• ASTM B8

• ASTM B496, where applicable

• IEEE 1202 / CSA FT4, where applicable

• NFPA 70 (National Electrical Code), for installation requirements

Actual compliance and certification must be verified for the specific product construction.

CONSTRUCTION

Conductor:

Stranded copper conductor designed to provide reliable electrical conductivity and mechanical performance. Class B stranded, compact stranded, or compressed constructions are available according to the applicable specification.

Conductor Shield:

An extruded semi-conducting layer applied over the conductor to provide a uniform electrical interface between the conductor and insulation.

Insulation:

Available in two options:

• EPR: Ethylene propylene rubber insulation, designed for applicable 15kV, 25kV, and 35kV cable constructions.

• TR-XLPE: Tree-retardant cross-linked polyethylene insulation, designed for the specified voltage rating and insulation level.

Insulation thickness and electrical characteristics depend on the rated voltage and cable design.

Insulation Shield:

A semi-conducting polymeric layer applied over the insulation. The material, bonding characteristics, and stripping properties depend on the selected insulation system and applicable cable specification.

Metallic Shield:

Annealed copper tape applied helically around the insulation shield. The specified reference construction uses 5 mil copper tape with a 25% overlap.

Outer Jacket:

A protective PVC jacket designed to provide mechanical protection and resistance to moisture and environmental exposure. Black is the specified color for the reference construction. Additional jacket properties depend on the selected compound and applicable requirements.

Technical Characteristics

The table describes general material characteristics. Actual performance depends on the selected compound, cable construction, applicable standards, and installation conditions.

KEY FEATURES

• High-conductivity copper conductor

• Choice of EPR or TR-XLPE insulation

• Multiple voltage ratings, subject to cable design

• Semi-conducting conductor and insulation shields

• Copper tape metallic shielding

• Protective PVC outer jacket

• 105°C continuous conductor temperature rating for specified MV-105 constructions

• Suitable for industrial and utility power distribution

• Multiple conductor sizes according to project requirements

• Optional tinned copper conductor and water-blocking construction

• Custom cable configurations available subject to technical evaluation

FAQ

Q1: What is CU MV-105 cable?

CU MV-105 is a copper-conductor medium-voltage power cable series designed for applications requiring a 105°C maximum continuous conductor operating temperature in applicable MV-105 constructions.

Q2: What is the difference between EPR and TR-XLPE insulation?

EPR is a rubber-based insulation material generally offering greater flexibility. TR-XLPE is a cross-linked polyethylene insulation system designed for enhanced resistance to water-tree degradation. The appropriate choice depends on the electrical design, installation conditions, and project requirements.

Q3: What voltage ratings are available?

EPR-insulated cables can be designed for 15kV, 25kV, and 35kV applications. TR-XLPE voltage ratings depend on the specific cable construction and applicable standards.

Q4: Do both insulation options use a PVC jacket?

Yes. Both options can use a PVC outer jacket in the configurations described in this product series. The jacket compound and performance properties must be confirmed against the applicable specification.

Q5: What is the function of the copper tape shield?

The copper tape provides metallic shielding and may form part of the grounding or fault-current path when designed and installed for that purpose.

Q6: What is the rated operating temperature?

Specified MV-105 constructions have a maximum continuous conductor operating temperature of 105°C. Emergency and short-circuit temperature limits depend on the applicable design and standard.

Q7: Can the cable be installed underground?

The cable may be installed in underground ducts and other permitted systems. Direct burial requires a construction suitable for that installation and compliance with applicable electrical codes.

Q8: Can conductor sizes and cable specifications be customized?

Conductor sizes, insulation thicknesses, shielding configurations, and jacket requirements can be evaluated according to project specifications and manufacturing capabilities.

Q9: Which standards does the cable meet?

Applicable standards may include UL, ICEA, AEIC, NEMA, and ASTM requirements. Actual compliance and certification depend on the selected voltage rating and cable construction.

Q10: How can I choose between EPR and TR-XLPE?

EPR may be preferred when flexibility is an important design consideration. TR-XLPE may be preferred when enhanced resistance to water-tree degradation is required. Final selection should consider the applicable technical specification, installation conditions, and engineering requirements.