GWFI and GWIT Glow-Wire Tester (PLC Type)

GWFI and GWIT Glow-Wire Tester (PLC Type)

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  • Parameters

GWFI and GWIT Glow-Wire Test Apparatus

1. Introduction

The glow wire tester is designed according to IEC60695-2-10 to IEC60695-2-13, UL746A, IEC829, DIN695 and VDE0471. The specific material and sharp heating wire is heated to specific temperature (550 ℃~960 ℃) for 1 min by max current, then vertical burns the EUT with certain pressure (0.95N) for 30s, then check if the test specimen and bedding material are burning, and count the burning time to judge the dangerousness of the specimen. Generally it is applied to test flammability, GWIT and GWFI of lighting lamps, electronic products and household appliances The equipment is applicable to flame resistance test of all levels of QC departments and corresponding enterprises.

The glow-wire test apparatus is controlled by controlled by 7-inch color touch screen and PLC.The shell is made of painted coating metal sheet and built-in air exhaust, and the front panel is transparent for easy observation of the experimental process.

Glow wire testing is an electrical safety test designed to evaluate the flame resistant properties of plastic materials used in electrical devices. Its purpose is to protect against the risk of fire from overheated or electrically energised parts which may cause the plastic material to ignite. This may occur in normal use, under reasonable abnormal use, malfunction or failure of the product. The glow wire simulates an over-heated part which then comes into contact with plastic materials.


2. Parameters

Control system

7-inch color touch screen+PLC

Glow-wire Loop

Diameter: 4mm ± 0.04mm

Material:   Ni/Cr(80/20)   

Sharp: 500W standardized loop, horizontally placed

Thermocouple

Diameter: Φ1mm K type

Material: K type (The insulating sleeve heat resist to 1250 ℃)

Timer

Integrated in PLC

Accuracy: ±0.1s

Glow-Wire Heating Temperature

500 ℃ ~1000℃ (presettable)

temperature fluctuation < 3 ℃

Flame Height

Measuring with a steel ruler

Pressure on test specimen

0.95N±0.1N

Maximum penetration depth

7mm ± 0.5mm   (adjustable)

Specimen moving speed

10mm /s ~25mm /s

Test period

PLC auto control, with remote-controller

Standard Silver Foil

Thickness:0.06mm

Purity:≥99.8%

Area: 2mm2

Ignition mat

White pine board with thickness of 10mm is covered with a layer of 12~30g/m2 wrapping tissue, 200±5mm below the sample.

Accessories

Wrapping tissue, flat smooth wooden board, height gauge, silver foil, remote-controller.

Chamber volume

≥ 0.5m3 , matte black background, illuminance ≤ 20Lux, built in exhaust fan, exhaust hole: Φ70mm

Dimension

1100mm * 630mm *1300mm (W*D*H)

Power

220V/50Hz, 1KW


Description
The glow-wire test apparatus is controlled by controlled by 7-inch color touch screen and PLC
Model
GW-1H