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Conductors:
Solid annealed bare copper in 22 and 24 AWG. |
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Insulation:
Conductors are dual insulated with an inner layer of foamed, natural
polyolefin covered by an outer layer of solid, colored polyolefin.
The conductor insulation is color-coded in accordance with industry
standards. |
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Twisted
Pairs: Individual conductors are twisted into pairs with varying
lay lengths to minimize crosstalk and specific color combinations to
provide pair identification. |
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Core Assembly: Cables of 25 pairs and less are assembled into a
cylindrical core. Cables larger than 25 pairs are assembled into
units, which are then used to assemble the core. Units are
individually identifiable by color-coded binders. |
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Filling Compound: The core assembly is filled with an 80°C ETPR
or PIB Base Jelly compound, completely filling the interstices between the pairs
and under the core wrap. |
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Core Wrap: A non-hygroscopic, dielectric tape is applied over the
core assembly to provide protection for the core. |
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Shielding:
A corrugated, copolymer coated, 8-mil aluminum tape is
applied longitudinally with an overlap. The shield interfaces are
flooded with an adhesive compound to provide a moisture barrier and
inhibit corrosion. |
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Support Member: A ¼ inch, 7-strand Extra High Strength (EHS) galvanized
steel messenger serves as the support member and is an integral part
of the sheath. The messenger is flooded to inhibit corrosion. |
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Jacket:
A black, linear low-density polyethylene jacket is applied overall.
The jacket provides
a tough protective covering designed to withstand exposure to direct
sunlight, atmospheric temperature changes and stresses expected in
standard installations. |
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jacket Markings: Information including the manufacturer’s
identification, pair count, AWG and product identification appears
at 2-foot intervals. Sequential length markings appear at alternate
2-foot intervals. |
