optical splice closures are used to distribute, splice, and store the
outdoor optical cables which enter and exit from the ends of the
closure. There are two connection ways: direct connection and splitting
connection. They are applicable to situations such as overhead, manwell
of pipeline, embedded situation etc. Comparing with terminal box,
the closure requires much stricter requirement of seal. Sealing ring and
air valve are required for closure, but that are not necessary for
terminal box.
Each cable consists of 8 colour coded polyethylene insulated conductors. These are twisted together to form 4 pairs with varying lay lengths. These pairs, together with a strong nylon rip cord are jacketed in a heat resistant PVC material.
The printing detail on the sheath, includes the cables part number, specification details and a 305-0 reverse metre marking within each box supplied, allowing for quick and easy measurement of cable installed and the amount remaining within the box.
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