Glow-wire Test Apparatus

The glow wire test is a physical thermal test method for plastics. The glow wire tester is used to test the flammability of plastic sheets or assemblies. The test sample is exposed to a selected high temperature load within a certain time window. With the glow wire device and common test procedures, parts of solid insulating materials are ignited by the glowing wire. The nickel/chromium wire is heated to 960°C and pushes the insulating material towards it with a force of 1N. It is checked that the insulating material does not reach a certain temperature or catch fire to prevent a fire hazard in its surroundings.

What is glow wire test?
The Glow wire tester ZRS-3H/ZRS-3HS is mainly used to test the ignition performance, ignition temperature, flammability and flammability index of lighting equipment, electronic products and household appliances. The equipment adopts high-temperature sprayed steel structure and imported instrument display, which is easy to operate and has stable test performance. This equipment is mainly used for flame retardancy testing by QC departments and related 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 

Specification:
• 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, 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: φ1 armored nickel-chromium/nickel-aluminum 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)

ZRS-3HS Glow-wire Test Apparatus (Compact Version)

What is glow wire capable?
The glow wire tester uses simulation technology to evaluate the fire hazard caused by thermal stress caused by heat sources such as hot components or overload resistors in a short period of time. It is one of the series of electrical and electronic components fire hazard test instruments. It is suitable for evaluating the flammability test and light-off temperature test of electrical equipment and its components and parts, as well as solid electrical insulating materials or other solid flammable materials. 

LISUN ZRS-3H Glow-wire Test Apparatus – After-sales Frequently Asked Questions (FAQ)
LISUN ZRS-3H Glow-wire Test Apparatus were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link. 

Taejin Choi

2020-01-12

It was an essential product for manufacturing and research. I purchased it after confirming that it is a CIE/IEC certified product. The quality of the product is excellent and the satisfaction with the price is high. Employees are also satisfied with their response to repairs and after-sales services.

Glow-wire Test Apparatus - Introduction Video

Glow-wire Test Apparatus - Operation Video