GB/T 31840.1-2025 Aluminum alloys power cables with extruded insulation for rated voltages from 1 kV(Um=1.2 kV) up to 35 kV(Um=40.5 kV)—Part 1:Cables for rated voltages of 1 kV(Um=1.2 kV) and 3 kV(Um=3.6 kV)
GB/T 31840.1-2025 Aluminum alloys power cables with extruded insulation for rated voltages from 1 kV(Um=1.2 kV) up to 35 kV(Um=40.5 kV)—Part 1:Cables for rated voltages of 1 kV(Um=1.2 kV) and 3 kV(Um=3.6 kV)
Basic Information
Scope
This document specifies the voltage marking and materials, product naming, conductors, insulation, cable cores, inner sheaths and fillers, metal layers, outer sheaths, inspection rules, markings, labels and accompanying documents, packaging, transportation, and storage requirements for aluminum alloy core extruded insulated power cables with a rated voltage of 1 kV (Um=1.2 kV) and 3 kV (Um=3.6 kV), and describes the corresponding test methods.
This document applies to fixed-installation rated voltage 1 kV (Um=1.2 kV) and 3 kV (Um=3.6 kV) aluminum alloy core extruded insulated power cables in power distribution networks or industrial installations.
This document does not apply to cables with special installation and operating conditions, such as overhead cables, mining industries, nuclear power plants (inside and near the safety shell), and underwater or shipboard cables.