ZONSKY Electrical Insulation Test Apparatus is designed to assess the electrical insulation properties of fire extinguisher components. It ensures safety during handling and operation near electrical sources. The equipment applies high voltage to test insulation resistance, dielectric strength, and leakage current, confirming that the materials and structure of the fire extinguisher prevent electrical conductivity.Talk To Our Team
This equipment is suitable for testing the insulation performance of water-based fire extinguishers while spraying. To perform the test, the operator should hang a metal plate with a diameter of φ120 (±0.025) mm and thickness t(±0.025) mm vertically on an insulating bracket. They then connect the metal plate to a transformer and apply an AC voltage of (3.6±0.5) kV. The operator must fix the fire extinguisher on the insulating support, maintain a 1-meter distance from the metal plate’s center to the nozzle, turn on the transformer, start spraying, and measure the current between the extinguisher and the ground. This current must not exceed 0.5 mA.
Compliance:
Section 6.7 “Electrical Insulation Test” of GA86-2009 “Simplified Fire Extinguishers”, excluding “Droplet Test of Water Mist Fire Extinguisher”.
ISO 7165:1999 “Fire fighting—Portable fire extinguishers—Performance and construction”.
ISO 11601:1999 “Wheeled fire extinguishers—Performance and construction”.
Electrical Insulation Test Machin Main technical parameters:
Parameter
Specification
Test voltage
Fixed voltage, (3.6±0.5) kV
Current
100 mA, measured with the instrument output
Leakage current range
0–10 mA, adjustable
Leakage current resolution
0.01 mA
Metal plate size
φ120 (±0.025) mm × t(±0.025) mm
Minimum laboratory space
2.5 m × 2.6 m; metal plate and frame supplied by user
Insulation bracket capacity
Withstands more than 36 kV
Leakage current alarm
Sound and light alarm triggers when leakage exceeds 0.5 mA
Injection device
Pneumatically driven
Jet gas
Compressed air (air compressor to be provided by customer)
