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TELEPHONE CABLES
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-YY Single-wired conductor of plain copper wire, PVC-based core insulation, fur cores twisted to star quad, core colours according to VDE 0815, PVC-based outer scheath, RAL 7032
J-Y (ST) Y Like J-YY...BD but cores are twisted in pairs, cable core covered by a static screen of aluminium-clad plastic wire with copper conductor, PVC-based outer sheaath RAL 7032.
BMD brandmeldekabel is the same cable but with red PVC sheath, request for alarm system.
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