Cable insulated cores should be identified according to the following rules:
——Cables with 5 cores and below are identified by color, see 5.2.5.2.2 in JB/T8734.1-2016. --Cables with more than 5 cores are preferably identified by numbers, and color identification is also allowed. See 5.2.5.3 in JB/T8734.1-2016. The supply and demand parties can also negotiate to determine other suitable methods for identifying insulated wire cores. Except for the yellow/green color combination, the outer layer of each core of the cable should be of only one color
T/LWB 019-2020 history
2020T/LWB 019-2020 Rated voltage 300/500V PVC insulated PVC sheathed flexible cable for connection