Comparison Analysis of General Specifications GJB 774A—2020 and GJB 1916A—2022 for Shipboard Cables

By reviewing technical requirements, scope of application, and evolution of the two important standards General Specification for Electrical Wires and Cables of Naval Ships (GJB 774A—2020) and General Specification for Low Smoke Wires and Cables used in Shipboard (GJB 1916A—2022) in the field of shipboard cables in China, their impact on design, manufacturing, and application is explored. GJB 774A—2020 is a general specification that replaces General Specifications of Electrical Cable and Cord for Military Shipboard Use (GJB 774—1989), providing specific material performance requirements and adding specific indicators for low smoke and halogen-free cables, while GJB 1916A—2022 is a revision of General Specification for Low Smoke Naval Ship Cable and Cord (GJB 1916—1994), but the revised content is relatively broad and still requires corresponding detailed and standardized support. GJB 774A—2020 is applicable to wires and cables for power, lighting, control, communication, instrumentation, and electronic equipment of various types of ships, while GJB 1916A—2022 mainly targets low smoke power cables, equipment cables, communication cables, and comprehensive cables for ships. GJB 774A—2020 places more emphasis on clarifying material properties and refining indicators. These differences enable GJB 774A—2020 to provide more specific technical guidance in cable design and manufacturing, promoting the development of shipboard cables towards high performance and environmental protection; GJB 1916A—2022 has a certain regulatory role in the field of low smoke cables, but its operability still needs to be improved. In general, GJB 774A—2020 is more universal and progressive, while GJB 1916A—2022 has its unique value in specific fields, the two standards together promote the development of China's shipboard cable technology.