Home / Standards / GB/T 30839.4-2014 GB/T 30839.4-2014 Active Energy consumption grading for industrial electroheat installations―Part 4: Indirect resistance furnaces 工业电热装置能耗分等 第4部分:间接电阻炉 Standard Type GBT ICS 25.180.10 CCS K61 Status 现行 Issue Date 2014-09-03 Implementation 2015-02-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A