Glow-wire Test Apparatus

The glow wire test is a physical thermal testing test method for plastics.Glow wire testing is used to test plastic sheets or components for their flammability. The test sample is exposed to a selected high temperature load in a defined time window. Glow-wire apparatus and common test procedure), parts of solid insulating materials are ignited by glowing wires. A nickel/chromium wire is heated to 960°C and the insulating material is pushed against it with a force of 1 Newton. It is checked that the insulating material does not attain a certain temperature or catches fire so as to prevent fire hazard in their vicinity.

What is glow wire test?
The Glow wire tester ZRS-3H/ZRS-3HS is suitable for resistance to abnormal heat and fire test on lighting lamps, electronic products and household appliances. It uses high-temperature coating spraying on steel structure and imported instrument display, with easy operation and stable performance. The glow wire testing equipment is applicable to flame resistance test of all levels of QC departments and corresponding enterprises.

Standard:
IEC60695-2-1(VDE0471) “Fire hazard testing – Part 2: Test methods – Section 1/sheet 1: Glow-wire end-product test and guidance”
IEC60695-2-11(GB/T5169.10)”Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end products (GWEPT)”
IEC60695-2-10 “Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test procedure”
IEC60695-2-12 “Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-wire flammability index (GWFI) test method for materials”
IEC60695-2-13 “Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition temperature (GWIT) test method for materials”
IEC335 “Household and similar electrical appliances – Safety – Part 1: General requirements”
UL 746A “Standard for Polymeric Materials – Short Term Property Evaluations”
IEC829 

Specifications:
• Heating temperature: adjustable continuously within the range of 25~1100°C, the accuracy of temperature is 1°C, the resolution of temperature is ±3°C
• Glow-wire time: 0.1-999.9s，±0.1s(time range is adjustable)
• Ignition time: 0.1-999.9s, auto record, manual pause
• Flame-out time: 0.1-999.9s (auto record and manual pause)
• Glow wire pressure on test specimen: 1±0.2N. Limiting pressure depth is 7mm
• Glow wire: φ4 nickel (80％) and chromium (20％) Made in specific dimensions.
• Thermocouple: φ0.5 armored nickel & chromium/nickel-chromium wire, K Type.
• Automatic departure: While reaching specified glowing time, test specimen will depart from glow wire automatically.

To save the delivery cost for the oversea market, LISUN designed a compact version glow-wire tester weighing less than 50kg. (Customer need to prepare additional ventilation system for ZRS-3HS)