Switchboard Cables
Generally are used for signalling purposes between switch-boards.
These cables have overall screen (with al.foil tape + drain wire and/or with tinned
copper wire braid as shield ) for protection against internal electrical charges and
external electrical fields.
These cables are manufactured in the form of multi-core , multi-pair and multi-pair
with each pair in individual metallic foil (PiMF).
They are manufactured Generally in acc. with VDE 0813 or Simens standards
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Construction : |
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Conductor |
Solid or stranded tinned(or plain) annealed copper |
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Insulation |
PVC type YI 3 (BS 6746 type 2) or PE |
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Twinning |
Two insulated conductor twisted together (for Multi-pair cables) , and each pair has aluminium-polyester screen with drain wire (for Multi-pair PiMF) |
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Lay-up |
We have two kind of Pair (or Cores) stranding : Unit-type stranding (BD) or stranding in layers (LG) |
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Static screen |
A Polyester tape and aluminium-polester tape with drain wire to form overall screen . |
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Shield |
Tinned Copper Wire Braid (if required) |
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Sheath |
PVC type YM 1 (Black or Gray) |
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Color Code: As VDE 0813 or Siemens specs |
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Some most common used switch-board cables :PVC insulated cables : S-YCY 64x2x0.5/0.9 mm Bd8 IMF vzn S-Y(St)Y 16x2x0.6/1.0 mm Bd8 vzn S-Y(St)CY 16x2x0.5/0.9 mm Bd8 vzn S-YY 10x2x0.6 mm PiMF LG PE insulated cables : S-2YY 2x(3x2x0.6) mm Bd IMF vzn S-2YYCY 2x(3x2x0.6) mm Bd IMF vzn S-2Y(St)CY 10x2x0.6 mm Bd S-2Y(St)Y 10x2x0.6 mm Bd |
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