1. Purpose code-not marked as power cable, K is control cable, P is 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 is aluminum;

　　Fourth, the code of the inner sheath-Q lead package, L aluminum package, H rubber sheath, V polyvinyl chloride sheath

　　5. Derived code-D does not trickle, P dry insulation;

　　Six, outer protective layer code

　　7. Special product code-TH wet tropics, TA dry tropics;

　　8. Rated voltage-unit KV Questions about cable type

　　1. SYV: solid polyethylene insulated radio frequency coaxial cable

　　2. SYWV(Y): Physically foamed polyethylene insulated cable television system cable, video (RF) coaxial cable (SYV, SYWV, SYFV) is suitable for closed-circuit monitoring and cable television engineering SYWV(Y), SYKV cable television, broadband Net special cable structure: (coaxial cable) single oxygen-free round copper wire physically foamed polyethylene (insulation) (tin wire aluminum) polyvinyl chloride (polyethylene)

　　3. Signal control cable (RVV sheathed wire, RVVP shielded wire) is suitable for building intercom, anti-theft alarm, fire protection, automatic meter reading and other projects. RVVP: copper core PVC insulated shielded PVC sheathed flexible cable voltage 300V/ 300V2-24 core use: instrument, meter, intercom, monitoring, control installation

　　4. RG: Physically foamed polyethylene insulated access network cable is used to transmit data and analog signals in the coaxial optical fiber hybrid network (HFC)

　　5. KVVP: PVC sheathed braided shielded cable Use: signal transmission, control, and measurement of electrical appliances, meters, and power distribution devices

　　6. RVV (227IEC52/53) PVC insulated flexible cable use: household appliances, small electric tools, instruments and power lighting

　　7. AVVR PVC sheathed flexible cable for installation

　　8. SBVV HYA data communication cable (indoor and outdoor) is used for the connection of telephone communication and radio equipment and the wiring of the junction box of the telephone wiring network

　　9. RV, RVP polyvinyl chloride insulated cables

　　10. RVS, RVB are suitable for connecting cables for household appliances, small electric tools, instruments, meters and power lighting

　　11. BV, BVR polyvinyl chloride insulated cables. Uses: suitable for fixed wiring of electrical appliances, instrumentation and power lighting

　　12. RIB speaker cable (fever cable)

　　13. KVV PVC insulated control cable use: signal transmission, control, and measurement of electrical appliances, meters, and power distribution devices

　　14. SFTP twisted pair transmission telephone, data and information network

　　15. UL2464 computer cable

　　16. VGA monitor cable

　　17. SYV coaxial cable transmits radio frequency signals in wireless communication, broadcasting, monitoring system engineering and related electronic equipment (including comprehensive coaxial cables)

　　18. SDFAVP, SDFAVVP, SYFPY coaxial cable, dedicated for elevator

　　19. JVPV, JVPVP, JVVP copper core PVC insulated and sheathed copper wire braided electronic computer control cable