DL/T 664-2008 (English Version) PDF

Scope: This standard provides methods for using infrared thermal imaging cameras to detect live equipment, instrument requirements, instrument application scope, defect judgment basis and infrared data management regulations, etc. The use of infrared thermometers (spot thermometers) can be implemented with reference to this specification . This standard applies to equipment of all voltage levels with current, voltage heating effects or other heating effects, including motors, transformers, reactors, circuit breakers, isolating switches, transformers, bushings, power capacitors, lightning arresters, power cables, busbars, Wires, insulators, combination electrical appliances, low-voltage electrical appliances and secondary circuits, etc.

DL/T 664-2008 Referenced Document

DL 408 Rules of safe operation in power industry (power plants and electrical parts of transformer substations)
DL 409 Rules of safe operation in power industry (electric power line part)
GB/T 11022 Common specifications for high-voltage alternating-current switchgear and controlgear standards*， 2020-12-14 Update
GB/T 6592 Electrical and electronic measurement equipment.Expression of performance*， 2010-12-01 Update
IEC 60068 Basic climatic and mechanical robustness testing procedure for components
IEC 61000 Electromagnetic compatibility (EMC) - Part 6-8: Generic standards - Emission standard for professional equipment in commercial and light-industrial locations*， 2020-07-30 Update

2017 DL/T 664-2016 Application specification for infrared diagnosis of live equipment
2008 DL/T 664-2008 Application rules of infrated diagnosis for live electrical equipment
1999 DL/T 664-1999 Technical guide for infrared diagnosis of alive equipment