IEC60950-1 Hot Wire Ignition Tester Annealing Time 8s-12s Power 0.26W/Mm±4%

IEC60950-1 Hot Wire Ignition Tester, Annealing Time 8s-12s, Power 0.26W/mm±4%

M.1 Hot wire ignition test
M.1.1
Five samples of each material shall be tested. The samples shall be 1 50 mm long by 1 3 mm wide, and of uniform thickness stated by the material manufacturer.
Edges shall be free from burrs, fins, etc.
M.1.2
A (250 ± 5) mm length of nichrome wire (80 % nickel, 20 % chromium, iron free) approximately 0,5 mm diameter and having a cold resistance of approximately 5,28 Ω /m shall be used. The wire shall be connected in a straight length to a variable source of power which is adjusted to cause a power dissipation of 0,26 W/mm in the wire for a period of 8 s to 1 2 s.
After cooling, the wire shall be wrapped around a sample to form five complete turns spaced 6 mm apart.
M.1.3
The wrapped sample shall be supported in a horizontal position and the ends of the wire connected to the variable power source, which is again adjusted to dissipate 0,26 W/mm in the wire (see Figure M.1 ).

M.1.4
Start the test by energizing the circuit so that a current is passed through the heater wire yielding a linear power density of 0,26 W/mm.
M.1.5
Continue heating until the test specimen ignites. When ignition occurs, shut off power and record time to ignite.
Discontinue the test if ignition does not occur within 1 20 s. For specimens that melt through the wire without ignition, discontinue the test when the specimen is no longer in intimate contact with all five turns of the heater wire.
M.1.6
The test shall be repeated on the remaining samples.
M.1.7
The average ignition time and the thickness of each set of specimens shall be recorded.

Standard:IEC60950-1 ,IEC60947-1:2011,IEC60695-2-20. Flammability Testing Equipment

Application:It is suitable for electric and electronic products, household appliance materials to do ignition dangerous test. It simulates the heat source or ignition source of simulates glow component and overload resistance which may cause thermal stress in a short time.

Test sample:Information technology equipment, low voltage switch and control equipment parts. Flammability Testing Equipment

Feature:Hot-wire coil ignition test adopts the specific size (ф0.5mm length:250mm) and specific material (Ni80/Cr20) of heater strip which is pre-annealed with required heating power(0.26W/mm) and time (8s～12s). Then coil heater strip on the specimen for 5 cycles according to certain wire wrapping tension (5.4N) and certain wire wrapping distance (6.35mm). Next, take the specimen with wrapping heater strip to test until 120s under the stipulate heating power (0.26W/mm) the users can judge the fire risk according to whether the specimen ignite and the ignite time. Flammability Testing Equipment

Parameters:

Picture for reference:

Guangzhou HongCe Equipment Co., Ltd (hereinafter referred to as HongCe) is located in Guangzhou, China, since 2003, engaged in developing and providing test equipment and detection system for electronic & electrical products, house appliances and other products. HongCe is professionally dedicated in providing laboratory testing equipment and production line testing system, we are now the high-tech enterprises with technical superiority and R & D capabilities in test instruments industry.

Our core technologies encompass vacuum, leak testing & automatic control, laboratory test equipment & solution. Our technical leader is an expert in leak detection, his more than 2 decades of experience are a great asset to our firm. Our technical team is comprised of wellexperienced engineers and technicians.

HongCe laboratory testing equipment are designed and manufactured as per the requirements of GB, IEC, EN, UL, VDE, BS, AS, ISO standards and etc. Our main products are: switch, plug, socket and coupler test equipment; mechanical strength impact test equipment; material fire hazard test equipment, enclosure protection test probes; waterproof and dustproof environmental testing equipment; household appliances testing equipment; wire and cable testing equipment; luminaires test equipment; electric tools test equipment; information technology and audio & video test equipment. Our products are widely used in domestic and worldwide measurement & certification institutions, inspecting mechanism, laboratories, export & import inspection and quarantine bureau, various production companies and etc. Our customer includes Bureau Veritas, CSA, ITS, UL, TUV Rheinland, TUV SUD, SGS and etc.

HongCe production line testing equipment are mainly customized according to client's workpieces, such as automatic leak testing system, gas recovery system, other tailor-made system based on vacuum & leak testing technology.