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Pressurized Cables
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If you have a question regarding coaxial, telephone, and building wire, power cable, insulation, extrusion, bunching, stranding, braiding, etc. post it here.
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TOPIC: Pressurized Cables

Pressurized Cables 2 years, 3 months ago #571

We are making a Cable Sample of Dry Core Copper Telecom cable which is required to pneumatically tested to a pressure of 800 millibars and shall sustain a constant pressure of 630 ± 50 millibars. The cable is required to be despatched under this pressure. The cable is made up of units of 25 twisted pairs, wrapped with polyester tape,Screened with Aluminium Foil and sheathed with Polyethylene.

Please suggest necessary precautions or any special care to be taken care during manufacturing w.r.t. the requirement of supply of such cables under air pressure. Please forward any technical paper available for the above.

Re: Pressurized Cables 2 years, 3 months ago #572

800 millibars equals 11.6 psi gage. Never ever allow the aluminum screening tape to protrude into the sheath.

Kindest regards,
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com
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