This standard specifies the types of pin-type lampholders suitable for various incandescent lamps and gas discharge lamps and the dimensions to ensure the safety and interchangeability of the lampholders. This standard is used in conjunction with the national standard GB/T l483.3-2002 "Gauge for pin-type lamp holders" and GB 2799--2001 {type and size of pin-type lamp caps". This standard does not include G5 and G]3 lamp holders, which refer to the national standard GB l3260--1991 "Lampholders and Starter Holders for Tubular Fluorescent Lamps".
GB 19148.2-2003 history
2008GB/T 19148.2-2008 Types and dimensions of lampholders.Part 2:Pin lampholders