UL 482 Standard For Portable Sun/Heat Lamps

29.5 If the output of the test equipment transformer is less than 500 VA, the equipment shall include a voltmeter in the output circuit that directly indicates the test potential.

29.6 If the output of the test equipment transformer is 500 VA or larger, the test potential may be indicated by (1) a voltmeter in the primary circuit or in a tertiary-winding circuit, (2) by a selector switch marked to indicate the test potential, or (3) in the case of equipment having a single test-potential output, by a marking in a readily visible location to indicate the test potential. When a marking is used without an indicating voltmeter, the equipment shall include a positive means, such as an indicator lamp, to indicate that the manual-reset switch has been reset following a dielectric breakdown.

29.7 Test equipment, other than that described in paragraphs 29.4—29.6, may be used if found to accomplish the intended factory control.

29.8 During the test a sufficient number of primary switching components shall be in the on position so that all primary circuitry will be stressed. Both sides of the primary circuit of the appliance are to be connected together and to one terminal of the test equipment, and the second test-equipment terminal is to be connected to the accessible dead metal.

30.1 Each appliance that has a power-supply cord having a grounding conductor shall be tested, as a routine production-line test, to determine grounding continuity between the grounding blade of the attachment plug and the accessible dead metal of the appliance that is likely to become energized.

30.2 Only a single test need be made if the accessible metal selected is conductively connected by construction to all other accessible metal.

30.3 Any indicating device (an ohmmeter, a battery-and-buzzer combination, or the like) may be used to determine compliance with the grounding continuity requirement in paragraph 30.1.

31.1 A sun/heat lamp shall be rated in amperes (A) or watts (W), and in volts (V). The rating shall include the frequency (Hz), if necessary, due to relay coils, transformers, or other components.