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Firewall® SR Instrumentation Cable Multi-Unshielded Pairs With Overall Shield (Silicone Rubber)

https://smartbim-library-production.s3.amazonaws.com/manufacturers/7dd0a216-b007-4fcf-8fdd-ea9084602d12/products/1e0061f7-b894-4068-8e06-b93343a314ad/7373c22c-3b26-452d-b109-6b45c7477ece/Firewall® SR Instrumentation Cable Multi-Shielded Pairs With Overall Shield.png

Applications

Harsh Environment Power Control Instrumentation

Description


Firewall® SR Instrumentation Cable is a silicone rubber insulated construction specifically designed for high temperature applications within nuclear generating facilities. It is intended for use in harsh and demanding environments where temperature extremes preclude the use of standard cables. It may be installed in trays, ducts, conduits or in confined spaces such as equipment housings. Designed for use on circuits where shielding from external electrostatic interference is required but shielding between pairs is not critical. (NU09_D)

Features


- Nuclear qualified with a minimum 40-year thermal life expectancy at 125°C

- Radiation resistant (up to 200 megarads)

- Extremely flame retardant

- Extremely flexible for installation ease

- Excellent circuit integrity during flame conditions

- Full traceability

- Easy strippability for termination ease

- Tin-coated copper conductors for improved terminations, corrosion resistance and temperature endurance

- All singles pass a wet dielectric (tank) test prior to braid covering to verify electrical integrity

- All cables have printed sequential footage markers for improved inventory control

PropertyValue
Volts600
Construction - Shield SystemHelically applied aluminum/polyester laminated tape shield in continuous contact with a flexible strand, tin-coated copper drain wire
Construction - Pair AssemblyTwo insulated and braided conductors twisted with a flexible strand, tin-coated copper drain wire, a helically applied aluminum/polyester laminated tape shield and an isolation tape
Construction - Overall CoveringRockhide braid* with high temperature finish
Construction - InsulationProprietary heat, moisture and radiation resistant silicone rubber
Construction - FillersAs applicable
Construction - ConductorAnnealed, tin-coated copper, Class "B" strand (ASTM B8 & B33)
Performance StandardsSilicone rubber insulation ICEA S-19-81 • Class 1E IEEE 383-1974 and IEEE 323-1974 • IEEE 383-1974 70,000 BTU flame test as modified by NRC Reg. Guide 1.131 • ICEA T-29-520 210,000 BTU flame test • IEEE 383-1974 para. 2.5.6 (ICEA S-19-81 Section 6.19.6) • 10 CFR 50 Appendix B
Construction - CoveringGlass braid with high temperature finish
Construction - Circuit IdentificationOne leg of each pair is white. Up to 5 pairs, second legs are black, red, green, orange, or blue. Over 5 pairs, legs are white and black with printed pair number on each leg of each pair.
Construction - CablingRequired number of pairs cabled together
Construction - Binder TapeHelically applied polyester
Product CategoryInstrumentation
ApplicationsHarsh Environment Power Control Instrumentation
Market ServedNuclear
Temperature125ºC

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