Introduction:
The cable horizontal and vertical burning test apparatus (VW-1) is built in accordance with UL1581 sect 1080.11080.14 and meets the VW-1 (Vertical-specimen) Flame Test requirements. It may be used to test 1060 products wire and cable FT1 and vertical burning test, 1080 VW-1 test, 1061 test, 1090 horizontal test, and 1100 horizontal specimen or FT2 test; to examine the flame spreading potential of cable or flexible wire to combustible near by when it caught fire. The entire test takes place in a sealed test chamber with a volume of 4.32 M3. Standard:
• UL1581 sect 1060~1100
• ASTM D 5025
• ASTM D 5207
Feature:
1. The test chamber is electrolytic plate electrostatic spraying, with an attractive look and a roasted black inside.
2. The tester is equipped with a powerful exhaust fume extractor; when the test is over, open the air supply system and exhaust to the outside, and the system is closed during the test.
3. There is an air throttle installed behind the test chamber.
After the test, open the ventilation system to allow air dispersion in the cabinet, but keep the air door closed during the test.
4. The front box has a glass viewing window for easy observation during the test.
5. To operate the burner inside the test chamber, a sealed glove is provided.
6. Test chamber size: available space 2.1M (l) *1M (w) *2.1M (h), capacity: 4.48m3. Dimensions 2.4m (l) *1M (w) *2.3M (h).
Temperature measurement system
1. A thermal sensor (copper tubing and thermocouples)-tube structure should be very high conductivity electrolytic copper. Length of 19.14 ± 0.02mm.
2. K-thermocouple, 0.5mm diameter of stainless steel tubes as a sleeve.
3. The digital temperature meter with match with imports K-type thermocouple, which readings greater than 1000 degrees centigrade.
4. Equipped with electronic stopwatch: accurate to 0.1s.
Apparatus and Fixture
1. The main fixtures include test stand and burner fixture.
2. The burner inner-diameter is 9.5 ± 0.5mm, fire mouth diameter is 0.90 ± 0.03mm; burner pipe is 102mm. Air supply is adjustable.
3. The height of flame is adjustable; Standard requests are: total height of flame is 125 ± 10MM, blue inner flame height is 40 ± 2mm ; flame test angle is adjustable from 0 to 45°.
4. Imported gas special flowmeter and precise needle valve controlling gas flow.
5. Imported brands of pressure gauges and control valve working gas pressure.
6. Test stand is made of stainless steel, and include horizontal bracket, vertical support an independent type, also as FT1, FT2, VW-1, three kinds of specifications. The plant of vertical support and blowtorch is parallel to the observation window plane, easy for viewing and operation.
7. The burner is imported from USA, it fit to ASTM D 5025-99 request.
8. High voltage electronic ignition system, and automatic cut off of gas supply for security control system.
9. Wedge-shaped frame: Add wedges, the burner is installed in the wedge, and can be easily moved and moved back to the defined position very accurately.