... ,PO sheathed ,low smoke halogen-free, B class flame-retardant power cable WDZC-YJY230.6/1kVXLPE insulated, steel tape armored , ... PO sheathed ,low smoke halogen-free, C class flame-retardant power ... Products’ light transmittance ≥60% after burning in airtight container.Flame retardant:Flame retardant consistent with GB / T 19666-2005 and GA 306 ...