The new SF6 gas-insulated medium voltage switchgear, the SJRM8-24 series of fully insulated, fully enclosed inflatable ring network cabinets, developed using computer simulation technology and combined with many years of experience in product design and manufacture, is a perfect unification of fixed unit combination type and flexible expansion type, suitable for the requirements of network nodes or user terminals, while meeting the needs of various secondary substations for the flexible use of compact switchgear.

The SJRM6-24 series fully insulated, fully enclosed inflatable ring network cabinet is a completely sealed, with all its energised components and switches enclosed in a stainless steel housing. The entire switchgear is unaffected by the external environment, thus ensuring operational reliability and personal safety, and is maintenance-free. The choice of extendable busbars allows any combination to be made, resulting in full modularity. The extension busbar is fully insulated and shielded, ensuring high reliability and safety, and the SJRM6-24 series can also be supplied with a factory automation solution, resulting in an intelligent switching concept with minimal installation and commissioning work on site. The SJRM6-24 series is available in 2, 3, 4 or 5 way configurations as standard, with additional equipment available on request, and offers exceptional flexibility due to the combination of full and half modules and its own expandability.

The SJRM6-24 series has been developed in accordance with IEC298 and GB3906 standards. The design life of the switches exceeds 30 years in indoor operation (2Q°C) (IEC298 Appendix GG).