Glow Wire Tester, to determine the fire hazard of electrical parts and components subjected to malfunctions such as overload, short circuit, poor connection, or others that may ignite and spread the flame to the rest of the product.
The Glow-Wire Tester simulates an overloaded resistor or other ignition source and applies heat to the specimen for a short period of time, and simulates as closely as possible actual effects occurring in practice.
A temperature controller is fitted with the thermocouple supplied, accurately measuring the glow wire temperature. The electrical circuit of the control unit is fully protected by fuses and a miniature circuit breaker.
Glow wire test machine is the integrated design,coupled with test chamber part and control part, which is easy for on-site installation and commissioning. Test chamber shell and the important parts are made of stainless steel, smoke and gas corrosion, using SCR automatic control system automatically adjust the current to achieve the precise temperature. It is digital display, easy to observe and record with stable and reliable performance.
STANDARD
- GB/T5169.10 Glowing/hot-wire based test methods-Hot wire device and general test procedure
- IEC 60695-2-11 Fire hazard testing-Part 2-11:Glowing/hot-wire based test methods-Glow wire flammability test method for end-products (GWEPT)
- IEC 60695-2-12 11 Fire hazard testing-Part 2-12:Glowing/hot-wire based test methods-Glow wire flammability test method for materials.
- UL 746 Standard for polymeric materials - Short term propertyevaluations
- IEC829 Methods of test for the determination of the ignitability of solid electrical insulating materials when exposed to electrically heated wire sources
- DIN695 Grade 2 chain slings with hook or ring type terminal fittings
- VDE0471-2 Fire hazard testing; part 2: Test methods; glow-wire test and guidance
Technical parameter
1.Heating temperature: 500-1000 or less continuous tunable range, temperature measurement accuracy of plus or minus 10
2.More than burning time: 0.1 999.9 s, plus or minus 0.1 s (adjustable time range)
3.Burning time: 0.1 999.9 s, automatic recording, pause manually
4.Residual flame time: 0.1 999.9 s, automatic recording, pause manually
5.Hot wire for sample pressure. Pressure limiting depth of 7 mm
6.Glow wire: nickel chromium (80%), chromium (20%), the size is made according to the rules.
- Thermocouple: nickel chromium/nickel aluminum wire, k index
- Auto off: sample after reaching prescribed burning time, automatically be off from the hot wire
9.Overall dimensions: width,deep,high (1120, 520,520) mm
