This document specifies the classification, technical requirements, inspection methods, inspection rules and requirements for marking, packaging, transportation and storage of terminal blocks. This document is applicable to protective screen cabinets with rated voltage AC not exceeding 1000V or DC not exceeding 1500V, ordinary terminal blocks for terminal boxes/control cabinets, isolation terminal blocks for testing, fuse terminal blocks, and protective conductor terminal blocks.
T/CEC 486-2021 history
2021T/CEC 486-2021 Technical specification for protective screen cabinet and terminal box terminal block