| Features | Fully enclosed, fully insulated, maintenance-free; compact size, space-saving; unaffected by condensation / pollution / small animals and other environmental factors; flexible modular combination; low annual gas leakage rate |
| Degree of Protection | Gas compartment IP67, enclosure IP4X (partially IP41) (optional) |
| Installation Method | Indoor floor-mounted (can be grouped into outdoor enclosure type); single busbar / single busbar sectionalized |
| Operation Method | Circuit breaker with spring energy-storage electric operation (electric / manual); load switch can be manually operated |
| Protection Configuration | Vacuum circuit breaker + over-current / instantaneous trip / zero-sequence and other relay protection; load switch-fuse combination with fuse protection; can be equipped with microprocessor-based integrated protection |
| Busbar Specification | Copper busbar (TMY), selected per rated current |
| Application Site | Urban distribution network, box-type substations, wind / PV step-up, underground distribution rooms, and harsh environments such as high altitude / heavy pollution / condensation |
| Corrosion Resistance Level | Gas compartment stainless steel with good corrosion resistance; enclosure aluminum-zinc coated sheet + powder coating, standard C3 (customizable C4/C5) |
| With Instrument Room | Yes (LV instrument & control room above / in front of gas compartment) |
| Applicable Standards | GB/T 3906, GB/T 11022, IEC 62271-200; load switch per GB/T 3804 |
| Certification Status | Type test report from national testing authority; CCC/CQC and other certifications subject to manufacturer |
| Packaging Method | Wooden case / pallet + moisture-proof plastic film; whole-cabinet or split packaging |
| Production Lead Time | Typically approx. 15~45 days (depending on scheme and quantity) |
| Supported Trade Terms | EXW / FOB / CIF / CFR etc. (subject to manufacturer's export capability) |
| Applicable Scenarios / Industries | Urban distribution, box-type substations, new energy, industry and harsh-environment distribution |
