Document ID: chunk:federal_register_of_legislation:F2023L01526:body:0:p65
Version: federal_register_of_legislation:F2023L01526
Segment Type: other
Provision Reference: 
Character Range: 180492–183369

seconds pre-heating, the pan shall be placed under the Tested-Device. If the size of the pan is too large to be moved without risking liquid spills etc. then the Tested-Device and test rig can be moved over the pan instead.

       Figure 1

       Phase A: Pre-heating

       3.3.4.2. Phase B: Direct exposure to flame (Figure 2)

       The Tested-Device shall be exposed to the flame from the freely burning fuel for 70 seconds.

       Figure 2

       Phase B: Direct exposure to flame

       3.3.4.3. Phase C: Indirect exposure to flame (Figure 3)

       As soon as phase B has been completed, the screen shall be placed between the burning pan and the Tested-Device. The Tested-Device shall be exposed to this reduced flame for a further 60 seconds.

       Instead of conducting phase C of the test, phase B may at the manufacturer's discretion be continued for an additional 60 seconds.

       Figure 3

       Phase C: Indirect exposure to flame

       3.3.4.4. Phase D: End of test (Figure 4)

       The burning pan covered with the screen shall be moved back to the position described in phase A. No extinguishing of the Tested-Device shall be done. After removal of the pan the Tested-Device shall be observed until such time as the surface temperature of the Tested-Device has decreased to ambient temperature or has been decreasing for a minimum of 3 hours.

       Figure 4

       Phase D: End of test

       3.4. LPG burner fire test set up for component based test

       3.4.1. The Tested-Device shall be placed on a test equipment, in the position that the manufacturer's design intends.

       3.4.2. LPG burner shall be used to produce flame to which the Tested-Device is exposed. The height of the flame shall be about 60 cm or more, without the Tested-Device.

       3.4.3. The flame temperature shall be measured continuously by temperature sensors. An average temperature shall be calculated, at least every second for the duration of the whole fire exposure, as the arithmetic average of temperatures measured by all temperature sensors fulfilling the location requirements described in paragraph 3.4.4.

       3.4.4. All temperature sensors shall be installed at a height of 5 ± 1 cm below the lowest point of the Tested-Device's external surface when oriented as described in paragraph 3.4.1. At least one temperature sensor shall be located at the centre of Tested-Device, and at least four temperature sensors shall be located within 10 cm from the edge of the Tested-Device towards its centre with nearly equal distance between the sensors.

       3.4.5. The bottom of Tested-Device shall be exposed to the even flame directly and entirely by fuel combustion. LPG burner flame shall exceed the horizontal projection of the Tested-Device by at least 20 cm.

       3.4.6. An average temperature of 800 °C shall be reached