UL 224 Heat Shrink Tubing Flammability Test Equipment Supplier
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Whats/App: +86 156 1874 6768
Web: standard-groups.com
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Features
The electrical conduit flame retardancy tester uses a high-voltage igniter for automatic ignition, features a sophisticated design, and is resistant to smoke corrosion. Key components are imported, it features a digital time display, and the test procedure is automatically controlled, making it convenient and reliable to use.
Parameters
| Description | Details |
|---|---|
| Studio size (W×H×D) | 300×1200×450mm |
| Outer box size (W×H×D) | 320×1400×600mm |
| Gas | Liquefied petroleum gas (user's own) |
| Flame burning and extinguishing time timing | 0 - 999.9S, 0.1s (timing accuracy: 0.1S), can be continuously set, automatic record, manual pause |
| Bunsen burner tilt angle | 45°, adjustable within the 0 - 90° range |
| Standard power of burner | 1KW |
| Nozzle (Bunsen burner) inner diameter | 9mm |
| Flame height | 100mm; blue cone flame core height: 50mm |
| Working power supply | AC220V, 50Hz |
Accessoriess
High-voltage igniter
Bunsen burner (including nozzle)
Gas supply line
Timer (for recording flame burning/extinguishing time)
Sample fixing clamp
Combustion chamber (with ventilation system)
Temperature sensor, etc.
Test Procedures
1. Connect the gas pipe to the gas inlet at the rear of the cabinet, and check the gas connection to prevent leaks (using a standard liquefied petroleum gas cylinder).
2. Turn on the power switch.
3. Test parameter settings: Set the burning time TA according to the test standard.
4. Press the gas button to turn on the gas supply, then increase the gas flow rate and press the ignition button to light the Bunsen burner.
5. When applying the flame to the casing, the top of the blue conical flame of the Bunsen burner should be in contact with the surface of the casing, and the distance from this contact point to the bottom of the casing should be 100 mm (adjust the gas flow rate and the air adjustment screw at the bottom of the Bunsen burner to obtain a flame with an inner flame of 50 mm and an outer flame of 100 mm). For accessory testing, the flame should be applied to the accessory.
6. Press the start button, and the Bunsen burner will automatically tilt 45° and move to the sample position.
7. After the flame application time is reached, the Bunsen burner will automatically return to the vertical position. The flame application time varies for different types of casings.
8. After the Bunsen burner returns, the afterglow time T will automatically start timing. When the flame of the sample goes out, press the timing button to stop the afterglow time T.
9. After performing 6 consecutive tests, the system will automatically display the save interface. If you have not completed 6 tests, you can press the save button to save the data.
10. After the test is completed, all components will reset, and the gas source and power supply will be turned off.
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