This standard specifies the terms and definitions for ground insulation resistance testing of electrical lines of port gantry cranes, the selection and requirements of insulation resistance testing instruments, insulation resistance testing and insulation resistance judgment values. This standard is applicable to the testing of the ground insulation resistance of electrical circuits of port gantry cranes.
T/ZJBX 02-2019 history
2019T/ZJBX 02-2019 Group standard for testing the electric wiring insulation resistance of harbour portal crane