polar
polar, Total:9 items.
The international standard classification for "polar" includes: Lightning protection .
The Chinese standard classification for "polar" includes: Electrotechnical material and universal parts in general .
Professional Standard - Energy and Power Planning
- DL/T 437-1991 Technical guidelines for high voltage direct current buried electrode
- DL/T 437-2012 Technical guide of HVDC earth electrode system
- DL/T 253-2012 Measurement Method for Earth Resistance,Ground Potential Distribution,Step Voltage and Current Dividing on Earth Electrodes
- DL/T 5275-2012 Code for Construction Quality Checkout and Evaluation of Earth Electrode in DC Transmission System at ± 800 kV and Below
- DL/T 2026-2019 General technical specification for monitoring system of HVDC earth electrode
Professional Standard - Energy
- DL/T 437-2024 High Voltage Direct Current Grounding Electrode Code
- DL/T 1679-2024 Technical requirements for calcined petroleum coke for high voltage DC grounding electrodes
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 33588.5-2020 Lightning protection system components(LPSC)—Part 5:Requirements for earth electrode inspection housings and earth electrode seals
- GB/T 33588.2-2020 Lightning protection system components (LPSC)—Part 2:Requirements for air-termination systems,down-conductors and earth electrodes
polar,Grounding,HVDC ground electrode,DC ground electrode,Technical conditions for high-voltage DC ground electrode feed components
