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PowerGuard® Al 25 kV 100% EPR CTS PVC UL Type MV-105_Test1111

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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”.

Single conductor cable true-triple extrusion, dry cured insulation system consisting of a thermosetting semiconducting conductor shield, high dielectric strength ethylene propylene rubber (EPR) insulation, thermosetting semiconducting insulation shield, flat copper tape, black polyvinyl chloride (PVC) jacket.
Conductor:
Compressed concentric stranded aluminum alloy 1350.
Conductor Shield:
Extruded thermosetting semiconducting cross-linked polyethylene (XLPE) shield which is free stripping from the conductor and bonded to the insulation.
Insulation:
Extruded, Ethylene Propylene Rubber (EPR) – 25 kV 100% 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, when tested by the methods specified in ICEA S-93-639. 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, and sequential length (meter or feet) marking.

Table 1
Physical Properties of PVC Jacket
Unaged Tensile Strength, minimum (PSI) 1500
Aged* Tensile Strength, minimum retention (%) 85
Unaged Elongated, minimum (%) 100
Aged* Elongated, minimum retention (%) 60
Heat Distortion 1 hr at 121 ºC, maximum (%) 50

*Aged for 120 hrs at 100 ºC

Temperature Rating
Insulated Conductor and Copper Tape Shield Temperature Ratings
Normal:	105 ºC
Emergency*:	140 ºC
Short-Circuit – Insulated Conductor:	250 ºC
Short-Circuit – Copper Tape Shield:	200 ºC

*Operation at the emergency overload temperature shall not exceed 1500 hours cumulative during the lifetime of the cable.

Standards
ASTM B230 – Aluminum 1350–H19 Wire for Electrical Purposes
ASTM B231 – Concentric-Lay-Stranded Aluminum 1350 Conductors
ICEA S-93-639 – 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy
UL 1072 – Medium-Voltage Power Cables

UL listed as Type MV-105 – File E476447

Country
USA

12 July 2021

Image
MV AL EPR CTS

Notes:

Dimensions and weights are subject to standard manufacturing tolerances and are subject to change without notice.
Cables are manufactured, tested and marked to meet or exceed the requirements in ICEA S-93-639 for copper tape shielded cables rated 5-46 kV and the latest revision of UL 1072.
Utilizing a 105 ºC 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 105 ºC 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.
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.