What kind of cable is the WDZBNYJV?! Does the conductor use a mica tape?
Because the cable is fire-resistant, the conductor needs to be wrapped with a mica tape.
WDZBNYJV are copper conductor XLPE insulated PVC sheathed (V) halogen free (W) low smoke (D) flame retardant B (ZB) refractory (N) power cables. But the requirement is halogen-free and low smoke, then the model finally cannot be V, because the polyvinyl chloride PVC or polyolefin sheath material base material during the combustion of the former will release, the latter is low halogen halide, so only the cable sheath material by using polyethylene as the polyolefin material base material, is no halogen, so in accordance with the combustion characteristics of the model should be: WDZBNYJY.
Not only that, because of the burning characteristics is B, so the outer sheath is also wrapped with high flame retardant non-woven, such as alkali free glass fiber tape (preferably with fireproof mica tape), the sheath material should be used LSZH (with polyethylene as base material of polyolefin, WD-ST7, or DWPJ generation sheath material). Otherwise, it does not conform to the cable type and can not meet the requirements of combustion characteristics.
