UL790 Roof Covering Combustion Performance Fire Resistance Testing Machine

Introduction:

The photovoltaic cell module combustion tester UL790 is an instrument that simulates real conditions to evaluate the fire resistance of roofs and modules. It evaluates the sample's grade AC under the conditions of A1.82m, B 2.4m and C 3.9m.

Standards:

ASTM E 108 Fire Tests for Roof Covering Materials;

UL790 roof covering material fire test;

NFPA 256 roof covering fire test;

IEC 61730-2 Photovoltaic Modules Appendix A Fire Test Flame propagation.

Features:

The cylinder can easily control the slope of the deck;

The fire board is attached with a test deck;

Use automatic control valve to adjust temperature in grades;

Technical Parameters:

1. Plywood roof covering material size: 1,300(W) × 1,000(D) × 120(H);

2.in Stainless steel fan-shaped adjustg plate size: 1,440(L) x 940(H) mm;

3. The size of the non-combustible board assembly is: 330(W) x 2,130(D) x 584(H) mm;

4. The air flow rate of the test bench panel is: 19±8 km/h (5.5m/sec), and is equipped with anemometer monitoring;

5. The size of the air duct is: 2,130(W) x 762(H) x 3,000(L) mm, the material is made of stainless steel, corrosion-resistant and high-temperature resistant;

6. Fan: 220V, 50HZ, three-phase electricity, equipped with reverse system, can automatically adjust the wind speed;

7. Flow rate: 300m3/min;

8. Gas burner: used for intermittent fire, flame propagation and flying fire tests, 1.12m long, 60.3mm in diameter, with a 12.7mm (width)*0.91m (length) slit on the side facing the test board ；

9. The gas burner can provide 22,000Btu/min (387kWh), and can control the gas flow rate according to the three combustion levels of A, B and C, and the high-precision gas control valve;

10. A thermocouple is installed at the top 58.7mm of the burner, and the testable temperature is 888±28℃;

11. Ignition system: automatic ignition system to ensure the safety performance of the test,

12. Ignition electrode high voltage: 1.8kVp mass flow controller according to different standards;

13. Power supply voltage: 220v-60hz

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