This standard specifies the methods for factory testing, type testing and special testing of pressure relief valves for transformers. This standard applies to factory testing, type testing and special testing of release valves.
JB/T 7069-1993 history
2015JB/T 7065-2015 Pressure relief device for transformers
2004JB/T 7069-2004 Test guide for pressure relief devices for transformers
1993JB/T 7069-1993 Guidelines for testing pressure relief valves for transformers