This standard specifies the testing methods for JG series and winching equipment. This standard applies to JG series pipe twisting equipment. This standard is used together with JB/T 6756.1 "Testing Methods for Special Equipment for Wires and Cables - Part 1 Rules".
JB/T 6756.4-1993 history
2008JB/T 6756.4-2008 Equipments for electric wires and cables.Testing methods.Part4:JG Series tubular stranding machines
1993JB/T 6756.4-1993 Test methods for special equipment for wire and cable Part 4: JG series pipe stranding equipment