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PowerGuard® AL 35kV 100% TR-XLPE CN XLPE UL Type MV-105 - Physical Properties (Compressed)

APPLICATIONS
PowerGuard®-XL 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.

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®-XL tree-retardant cross-linked polyethylene (TR-XLPE) insulation, thermosetting semiconducting insulation shield, copper concentric neutral wires, water blocking agents, black encapsulating cross-linked polyethylene (XLPE) jacket.
Conductor:
Compressed 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) - 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:
Solid bare annealed copper wires helically applied and uniformly spaced.
Water-blocking agents:
Applied over the insulation shield and around the concentric neutral wires to resist longitudinal water penetration. Longitudinal water penetration shall be tested in accordance with the latest edition of ICEA T-34-664 except that the minimum requirement is 15 psig for 1 hour.
Outer jacket:
An extruded-to-fill black non-conducting cross-linked polyethylene (XLPE) jacket, meeting the physical requirements of Table 1, below, when tested by the methods specified in ANSI/ICEA S-94-649. The jacket shall be free-stripping and not interfere with an intimate contact between the neutral wires 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.

Physical Properties of Extruded-to-Fill LLDPE Jacket
Unaged Tensile Strength, minimum (PSI)1500
Aged* Tensile Strength, minimum retention (%)70
Unaged Elongated, minimum (%)150
Aged* Elongated, minimum retention (%)70
Heat Distortion 1 hr at 100ºC, maximum (%)30
*Aged for 48 hrs at 100ºC

 

TEMPERATURE RATING 
Insulated Conductor and Shield Wire Temperature Ratings
Normal105ºC
Emergency**140ºC
Short-Circuit – Insulated Conductor250ºC
Short-Circuit – Shield Wires350ºC
**Operation at the emergency overload temperature shall not exceed 1500 hours cumulative during the lifetime of the cable.


STANDARDS

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

• ASTM B231 – Concentric-Lay-Stranded Aluminum 1350 Conductors
• ASTM B3 – Soft or Annealed Copper Wire
• ICEA S-94-649 – Concentric Neutral 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 ANSI/ICEA S-94-649 for concentric neutral cables rated 5-46 kV and the latest revision of AEIC CS8.
3. The concentric neutral size is calculated based on the equivalent short-circuit capabilities for LLDPE jacketed cable (ICEA P-45-482).
4. 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.
5. 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.




Updated 03/06/2022

Specifications

Conductor
Size
(AWG
or
kcmil)

N/A 250

Neutral
Size

N/A 1/2

Neutral
Wires

N/A 14

Neutral
Size
AWG

N/A 14

Diameter
Conductor
(in)

N/A 0.558

Diameter
Insulation
(in)

N/A 1.296

Diameter
Insulation
Shield
(in)

N/A 1.386

Diameter
Jacket
(in)

N/A 1.614

Weight
Aluminum
(lb/1000 ft)

N/A 235

Weight
Copper
(lb/1000 ft)

N/A 177

Weight
Net
(lb/1000 ft)

N/A 1140