This part of JT/T 939 specifies the classification and composition, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of lighting controllers. This standard applies to LED lighting control in highway tunnels and LED lighting control in sections along highways. LED lighting controls in service areas and toll stations along highways can be used as a reference.
JT/T 939.5-2014 history
2014JT/T 939.5-2014 LED lighting luminaries for highway.Part 5:Lighting controller