Working principle:
Due to fault conditions in the product, such as fault current
flowing through the leakage path, overheating of components or
parts, poor contact, etc., flames may be caused, which may then
shoot onto nearby parts. The needle flame test simulates the small
flames generated inside the product under fault conditions and
evaluates the fire hazard using simulation technology.
Test standards:
Complies with the test standards of GB/T5169.5 and IEC60695-2-2
"Fire hazard testing for electrical and electronic products - Part
2: Test methods - Part 2: Needle flame test".
Applicable scope:
The flame tester is mainly suitable for components, parts, and
assemblies of electrical and electronic products, household
appliances, such as wiring boards, centrifugal switches, rice
cooker sockets, etc
Technical parameters:
Burner: 35mm long, inner diameter: 0.5mm
Standard for igniting flames: flame height 12mm
Temperature measuring device:
Thermocouples are armored Ф 0.5mm K-type filament, measurement
temperature: 1050 ℃
Heat transfer copper block: Ф 4.0x6.0mm
Heating speed: 23.5S at 100-700 ℃
Test chamber volume: 0.5M³, d×w×h: 60×95×90cm
External dimensions: d×w×h: 61×120×105cm
Outer box material: mirror stainless steel.
Why use a needle flame testing machine:
Fire protection (fire prevention, flame retardancy) has always been
a social safety proposition. With the improvement of China's
economic level, the awareness of fire protection (fire prevention
and flame retardancy) has also reached a high point. Therefore,
fire prevention and flame retardancy has become a top priority for
the country! So when we use electrical and electronic products,
components, and components of household appliances, we also require
a needle flame experiment.
Under what circumstances are household appliances, electrical and
electronic products suitable for needle flame combustion testing
machines
When the hot wire test or horizontal vertical combustion test
method is not suitable for small parts (or components), the needle
flame test method can be used. If the test sample ignites during
the hot wire test, the combustion hazard generated also needs to be
tested with a needle flame. needle
Note: This needle flame testing machine is one of the recommended
equipment for household and similar electrical testing centers in
GB/T4706 and IEC60335-1
Reference standards: IEC884-1, GB2099.1, VDE, IEC335, GB4706.1,
GB5169.5, UL1694.
Technical description:
This product is base on the use of the electronic and electrical
products. Due to fault conditions such as fault current flowing
through leakage paths, overheating of components or parts, poor
contact, etc., it may cause flames. It may also shoot on nearby
parts. This test simulates the small flames generated inside the
product under fault conditions and uses simulation technology to
evaluate the fire hazard. When the hot wire test or horizontal
vertical combustion test method is not suitable for small parts (or
components), the needle flame test method can be used. If the
sample ignites during the hot wire test, the combustion hazard
generated also needs to be tested with a needle flame. Suitable for
components and parts of electronic and electrical products,
household appliances, such as wiring boards, centrifugal switches,
and rice cooker sockets.
Basic specifications:
1) Volume inside the box: ≥ 0.5 cubic meters, with glass
observation door
2) Fuel: Butane gas Butane
3) Burner specifications: over 35mm long, inner diameter Ø 0.5mm ±
0.1mm, outer diameter not exceeding Ø 0.9mm
4) Flame height: 12mm ± 1mm adjustable
5) Flame temperature: Within 23.5 ± 1 S, the time to rise from 100
℃ to 700 ℃
6) Timer: adjustable within the range of 0~99 minutes and 99
seconds, with adjustable combustion time and recorded combustion
duration
7) Safety device: This machine is equipped with a gas leakage alarm
device. When the gas concentration exceeds the normal value, the
alarm device will sound and light an alarm, cut off the gas supply,
and start the exhaust system to exhaust the gas inside the test box
until the air quality inside the box returns to normal value
8) Product features: The combustion chamber of this tester adopts
electrostatic spray painting, which has a beautiful appearance and
is resistant to smoke and gas corrosion. Time digital display,
three-dimensional adjustable fixture, automated control system,
independent ventilation, convenient observation and recording,
stable and reliable.
9) Power supply: AC220V/50Hz
