PowerGuard® AL 35 kV 133% TR-XLPE CTS PVC UL Type MV-105 AEIC CS8

APPLICATIONS
PowerGuard® cables are intended for use in wet or dry locations for distribution of single or three phase medium-voltage power. These cables may be installed in ducts, exposed to sunlight or direct buried. Sizes 1/0 AWG and larger are approved for use in cable tray, marked “FOR CT USE”.

CONSTRUCTION
Single conductor cable with filled strand aluminum conductors, true-triple extrusion, dry cured insulation system consisting of a thermosetting semiconducting conductor shield, high dielectric strength PowerGuard® tree-retardant cross-linked polyethylene (TR-XLPE) insulation, thermosetting semiconducting insulation shield, flat copper tape, black polyvinyl chloride (PVC) jacket.

Conductor: Compact concentric stranded aluminum alloy 1350. Stranded conductors are water-blocked with conductor filling compound.
Conductor Shield: Extruded thermosetting semiconducting cross-linked polyethylene (XLPE) shield which is free stripping from the conductor and bonded to the insulation.
Insulation: Extruded, Tree-Retardant Cross-linked Polyethylene (TR-XLPE) - 133% insulation level.
Insulation Shield: Extruded thermosetting semiconducting cross-linked polyethylene (XLPE) shield with controlled adhesion to the insulation providing the required balance between electrical integrity and ease of stripping.
Metallic Shield: Flat, uncoated 5 mil thick copper tape helically applied with a minimum 25% overlap.
Outer jacket: A polyvinyl chloride (PVC) jacket is extruded over the copper tape shield, meeting the physical requirements of Table 1, below, when tested by the methods specified in ICEA S-97-682. The jacket shall be free-stripping and not interfere with the contact between the flat copper tape and the underlying extruded insulation shield. The jacket is sunlight resistant and marked. The jacket shall contain a print legend marking, sequential length (meter or feet) marking and three longitudinal extruded red stripes.

STANDARDS
These cables are manufactured and tested to meet or exceed the following standards:

• ASTM B8 – Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
• ASTM B3 – Soft or Annealed Copper Wire
• ICEA S-97-682 – Utility Shielded Power Cables Rated 5 Through 46 kV
• ICEA T-31-610 – Test Method for Conducting Longitudinal Water Penetration Resistance Tests on Blocked Conductors
• ICEA T-34-664 – Test Method for Conducting Longitudinal Water Penetration Resistance Tests on Longitudinal Water Blocked Cables
• ICEA P-45-482 – Short Circuit Performance of Metallic Shields and Sheaths on Insulated Cable
• AEIC CS8 – Extruded Dielectric, Shielded Power Cables Rated 5 Through 46 kV
• UL 1072 – Medium-Voltage Power Cables

LISTINGS AND CERTIFICATIONS

• UL listed as Type MV-105 – File E476447

 

NOTES

1. Dimensions and weights are subject to standard manufacturing tolerances and are subject to change without notice.

2. Cables are manufactured, tested and marked to meet or exceed the requirements in ICEA S-97-682 for copper tape shielded cables rated 5-46 kV and the latest revision of AEIC CS8.

3. Utilizing a 105ºC normal operating conductor temperature will increase cable ampacity rating but will reduce the cable fault capability. If the user plans on operating these cables at 105ºC conductor temperature for normal operation and 140ºC for emergency overload, please contact American Wire Group for the applicable cable ampacity and shield fault capability ratings.

4. Migration of soil moisture away from the cable is more likely at the higher operating conductor temperature and can result in an increase in soil thermal resistivity, resulting in an increase in conductor and soil temperature.

Conductor ampacities are based on the following:

• Load factor of 100%
• Earth thermal resistivity of 0.900ºC-m/W
• Ambient earth temperature of 20ºC
• Ambient air temperature of 40ºC
• Maximum conductor operating temperature of 105ºC
• Copper tape shield grounded at both ends (shield circulating currents flowing)
• Minimum separation of 3 m or 9.8 ft from any other underground electrical system or heat source
• Maximum load variation between phases of 10%
• Maximum 910 mm or 36 in depth of burial
• The ampacity values calculated may be limited by the maximum earth interface temperature due to soil moisture migration or dry out, and has not been considered here.

UPDATED 06/21/2022