UL 482 Standard For Portable Sun/Heat Lamps

B. Switch S1 is then to be closed, energizing the sun/heat lamp, and within a period of 5 seconds, the leakage current is to be measured using both positions of switch S2 and with the sun/heat lamp switching devices in all their operating positions.

C. Leakage current is to be monitored until thermal stabilization. Both positions of switch S2 are to be used in determining this measurement. Thermal stabilization is considered to be obtained by operation as in the normal temperature test.

21.1 The current or power input to a sun/heat lamp shall not be more than 110 percent of the marked rating when the lamp is operated from a circuit of rated voltage.

21.2 To determine compliance with the requirement of paragraph 21.1, the input is to be measured with the lamp at normal operating temperature. For the input test, the rated voltage of a lamp having a marked voltage range (such as 110—120 V) is considered to be the mean of the range.

22.1 For each sunlamp, the ratio of the irradiance within the wavelength range of greater than 200 nm through 260 nm to the irradiance within the wavelength range of greater than 260 nm through 320 nm shall not exceed 0.003 at any distance and direction from the product or lamp.

22.2 The measurement shall be made under those operational conditions and procedures as recommended by the manufacturers that maximize the emission of radiation. The measuring instrument shall be so positioned and so oriented as to result in the maximum detection of the radiation by the instrument. The lamp voltage, current and position recommended by the manufacturers shall be used.