1. By the way, many people in design institutes these days don't understand cables, yet they're still designing them. If it's low-smoke and halogen-free, it can only be WDZA-YJY. If the YJV model is flame-retardant, it can only be ZRA-YJV.
2. When the GB/T12706.1-2008 standard was announced, Professor Wu Changshun addressed this issue. WDZA-YJV and WDZA-YJY are the same thing: halogen-free, low-smoke, flame-retardant, Class A copper-core, cross-linked polyethylene insulated, polyolefin sheathed power cable.
