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CABLE STRUCTURE
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CONDUCTOR
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0.4,0.5,0.65 or 0.9 mm annealed copper, solid
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INSULATION
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Polyethylene or Polypropylene
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PAIRS
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Two insulated conductors twisted
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LAY-UP
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Unit construction for cables more than 25 pairs. Concentric for cables up to 25 pairs
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CORE – COVERING
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Non-hygroscopic tape with a high dielectric strength
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SHIELD
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Plastic coated Aluminum tape, thickness 0.2 mm laid on with overlap.
The aluminum tape is corrugated for every size of cables
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Armor
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Galvanized steel wires
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Outer
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Polyethylene (Black)
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For exchange area telephone distribution lines, in areas of low security such as across bridges or directly burial in ground where mechanical conditions are not severe.
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Standards / Testing Specifications
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Marking
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PDTL Year of manufacture AP-SWA Size x No. of pair P Length of cable.
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Installation
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AP-SWA cable can be installed in areas of low security location. It is recommended that the installation instructions indicated by the Local Electric Code, or any equivalent, be followed, so that the safeguarding of persons and the integrity of the product will not be affected by deficiencies in the installation.
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