Backpack-mounted wind-powered fire extinguisher

▲1. Effective fire extinguishing distance ≥2.3m ▲2. Airflow at outlet ≥0.5m³/s ▲3. Continuous operation reliability: Operates continuously for 5 hours at rated speed without failure, with speed drop less than 5% of rated speed. Functions normally after restart. ▲4. Unit tilt reliability: Operates normally after tilting 90° up, down, left, or right from horizontal position at rated speed. ▲5. Safety protection (oil/electricity leakage prevention): Complies with GB/T10280-2008 ▲6. Continuous operation time per oiling ≥30 min ▲7. Cold start time ≤3 s ▲8. Starting Methods: Hand-crank, electric start 9. Overspeed Test: Complies with GB/T10280-2008 ▲10. Impeller Static Balance Test: Complies with GB/T10280-2008 11. Assembly Quality: Assembly must be correct and complete. Moving parts must operate smoothly without interference or binding. 12. Ear-level noise ≤105dB(A) ▲13. Hand-held vibration ≤20m/s² ▲14. Engine power ≥4kW 15. Heat shield: Complies with GB/T10280-2008 ▲16. Engine operating speed ≥7000r/min 17. Fuel tank capacity ≥3L 18. Appearance Quality: Plastic parts shall have smooth surfaces free of cracks, shrinkage cavities, or other defects. Stamped parts shall be intact without cracks or burrs. Castings shall be free of shrinkage cavities, porosity, deformation, or other defects. Welded parts shall be flat without burn-through, cracks, or incomplete welds. Plated parts shall have uniform coating with secure adhesion and a smooth surface. 19. Marking: Compliant with GB/T10280-2008 20. Packaging: Complies with GB/T10280-2008 21. Includes a portable fuel dispenser with capacity ≥20L and weight ≤3kg 21. Products must be accompanied by copies of inspection reports issued by third-party testing institutions bearing CMA and CNAS certifications. Items marked with ▲ must be explicitly documented in the inspection reports.