[1: Category, use] [2: Conductor] [3: Insulation] [4: Inner sheath] [5: Structural features] [6: Outer sheath or derivative] [7: [使Mn卣]

　　Items 1-5 and 7 are represented by pinyin letters, and polymer materials are represented by the first letter of the English name, and each item can be 1-2 letters; item 6 is 1-3 numbers.

　　The principle of omission in the model: Copper is the main conductor material used in wire and cable products, so the copper core code T is omitted, except for bare wires and bare conductor products. Bare wires and bare conductor products, power cables, and electromagnetic wire products do not indicate major category codes, and electrical equipment wires and cables and communication cables are also not listed, but subcategory or series codes are listed. Item 7 is a mark for various special use occasions or additional special use requirements, marked with a pinyin letter after "-". Sometimes in order to highlight this item, write this item to the top. Such as ZR- (flame retardant), NH- (fire-resistant), WDZ- (low smoke and halogen-free, corporate standard), -TH (for hot and humid areas), FY- (termite-proof, corporate standard), etc.

　　Power cable armor and outer sheath numbers

　　Digital marking armor layer outer layer or outer sheath

　　1 Interlocking armored fiber outer quilt

　　2 Double-layer steel belt PVC jacket

　　3 thin round steel wire polyethylene jacket

　　4 thick round steel wire

　　5 wrinkle (corrugated) steel strip

　　6 double aluminum (or aluminum alloy) tape

　　7 copper wire braiding

　　8 steel wire braiding