| C57.12.35-2024 - IEEE Std C57.12.35-2024 (Revision of IEEE Std C57.12.35-2013)           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        nan           | 
                                                                                        2024-12-04           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.36-2007 - IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2008-03-07           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.36-2017 - IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Communication, Networking and Broadcast Technologies           | 
                                                                                        2017-08-25           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.37-2006 - IEEE Standard for the Electronic Reporting of Distribution Transformer Test Data           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2006-07-31           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.37-2015 - IEEE Standard for the Electronic Reporting of Distribution Transformer Test Data           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2015-11-02           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.37-2015 - IEEE Standard for the Electronic Reporting of Distribution Transformer Test Data - Redline           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2015-12-01           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.38-2009 - IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 V and Below, Low Voltage, 240/120 V; 167 kVA and Smaller           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2009-12-04           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.38-2014 - IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2014-09-05           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.38-2014/Cor 1-2016 - IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below - Corrigendum 1: Figure 1A           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2017-03-22           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.39-2017 - IEEE Standard for Requirements for Distribution Transformer Tank Pressure Coordination           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Components, Circuits, Devices and Systems           | 
                                                                                        2018-05-03           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2000 - American National Standard for Secondary Network Transformers Subway and Vault Types (Liquid Immersed)-Requirements           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2005-02-07           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2006 - IEEE Standard for Requirements for Secondary Network Transformers, Subway and Vault Types (Liquid-Immersed)           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2006-10-09           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2011 - IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2012-01-23           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2011 - IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed) - Redline           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2012-03-22           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2017 - IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Components, Circuits, Devices and Systems           | 
                                                                                        2017-09-01           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2024 - IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2024-08-08           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.40-2024 - IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed) - Redline           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2025-04-23           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.44-1994 - IEEE Standard Requirements for Secondary Network Protectors           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        1988-01-01           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.44-2000 - Standard Requirements for Secondary Network Protectors           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        1988-01-01           | 
                                                                                                   | 
              
          
                                                                                        | C57.12.44-2005 - IEEE Standard Requirements for Secondary Network Protectors           | 
                                                                                        IEL Online           | 
                                                                                        IEEE           | 
                                                                                        Power, Energy and Industry Applications           | 
                                                                                        2006-06-19           | 
                                                                                                   |