The Siemens 8DJH medium‑voltage gas‑insulated switchgear manual provides application, safety, technical parameters, installation and operation guidelines.
The 8DJH series is a gas‑insulated, indoor medium‑voltage switchgear designed for secondary distribution systems up to 24 kV. It is factory‑assembled, type‑tested and suitable for harsh environments such as substations, wind farms, tunnels and industrial plants.
The manual covers application requirements, safety classifications, detailed technical specifications, installation layout, unit and combination cabinet options, component descriptions (load switches, vacuum circuit breakers, current transformers, cable connections, interlocks, indicators, transformer monitoring, low‑voltage equipment), dimensions, transport data and the relevant IEC/VDE standards. This manual is written in Chinese.
| Maximum rated voltage | 24 kV |
|---|---|
| Rated gas pressure | 150 kPa |
| Service life | 35–50 years |
| Rated short‑circuit current (50 Hz) | 63 kA |
It is rated for up to 24 kV.
The service life is at least 35 years and can reach 40–50 years.
The rated gas pressure is 150 kPa.