|
|
Flameproof mine power transformers. General specifications
|
Non-resonant spark gaps. Main parameters
|
Unified system for design documentation. Graphic identifications in schemes. Yaps, arresters and vases
|
Unit transformer substations from 25 to 2500 kV·A for voltage to 10 kV. Test methods
|
Low-voltage surge protective devices. Part 11. Surge protective devices connected to low-voltage power systems. Requirements and test methods
|
Low-voltage surge protectors. Part 12. Surge voltage protective devices for low-voltage power distribution systems. Principles of selection and use
|
Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods
|
Low-voltage surge protectors. Part 22. Surge voltage protective devices connected to telecommunications and signalling networks. Principles of selection and use
|
Low-voltage surge protective devices. Part 1. Surge protective devices connected to low-voltage power distribution systems. Technical requirements and test methods
|
Surge arresters for a.c. electrical installations for voltage from 3 kV to 750kV. General specifications
|
Surge arresters without gaps and non-linear resistor type gapped surge arresters for a.c. electrical installations for voltages from 3 to 750 kV. Part 5. Selection and application recommendations
|
