一、 Cable model code

1. Usage code - not marked as power cable, K for control cable, and P for signal cable; 2. Insulation code - Z oil impregnated paper, X rubber, V polyvinyl chloride, YJ cross-linked polyethylene; 3. Conductor material code - not marked as copper, L as aluminum; 4. Internal protective layer code - Q lead wrapped, L aluminum wrapped, H rubber sleeve, V polyvinyl chloride sheath; 5. Derivative code - D non drip, P dry insulation; 6. Outer protective layer code; 7. Special product code - TH wet tropical zone, TA dry tropical zone; 8. Rated voltage - in KV.

二、 Power Cable Armor and Outer Sheath Numbers

0 None; 1 Interlocking armored fiber outer cover; 2. Double layer steel belt PVC jacket; 3. Thin round steel wire polyethylene jacket; 4. Coarse round steel wire; 5 Wrinkled (rolled) steel strip; 6 Double aluminum (or aluminum alloy) tape; 7. Copper wire weaving; 8 Wire braiding.