UL 482-2009 pdf download

UL 482-2009 pdf download.Portable Sun/Heat Lamps.
6.7 During the examination of an appliance in connection with the requirements in 6.5, a part of the outer enclosure that may be removed, without the use of tools, by the user of the appliance (to permit the attachment of accessories, to allow access to means for making operating adjustments, or for another reason) is to be disregarded – that is, it will not be assumed that the part in question affords protection against the risk of electric shock. 6.8 The stability of a sun/heat lamp having a stand shall be such that it will not easily overturn under conditions of expected use. 6.9 A sun/heat lamp shall be so constructed that it will not tip over when resting on an inclined plane having an angle of 8 degrees with the horizontal. 6.1 0 Except for parts needed to perform a working function, an edge, projection, or corner of an enclosure, opening, frame, guard, handle, or the like shall be smooth and well rounded and not so sharp as to constitute a risk of injury to persons in intended use or during user maintenance. 6.1 1 A guard that is not permanently secured in place is to be investigated to determine its acceptability for the application. 7 Mechanical Assembly 7.1 A sun/heat lamp shall have all parts secured in an effective manner. 7.2 A switch that is housed in the enclosure of a lamp, and a lamp- or element-holder, shall be mounted securely and prevented from turning by means other than friction between surfaces. 7.3 A lockwasher properly applied is acceptable as a means to prevent turning of a stem-mounted switch.
8 Corrosion Protection 8.1 Iron and steel parts shall be protected against corrosion by galvanizing, plating, painting, enameling, or other equivalent means if the deterioration of such parts would be likely to result in an increased risk of fire, electric shock, or injury to persons. 8.2 If the oxidation of iron or steel due to the exposure of the metal to air and moisture is not likely to be appreciable – thickness of metal and temperature also being factors – the surfaces of sheet steel and cast iron parts in an enclosure may not be required to be protected against corrosion. The requirement of 8.1 does not apply to bearings, laminations, and the like.
9 Electrical Potentials 9.1 If a sun/heat lamp employs an autotransformer, no part of the lamp shall exceed a potential of 1 50 V to ground or to either conductor of the power-supply cord, when it is connected to a supply circuit of maximum rated voltage under any condition of operation, including open-circuit winding. If such a lamp employs a 2-winding transformer, the maximum difference of potential in the secondary shall be 300 V or less under any condition of operation, including open-circuit secondary. Exception No. 1 : A sun/heat lamp need not comply with this requirement if it employs an interlock that de-energizes the appliance during removal of a screen or lens necessary for relamping. See 1 5.3 and 1 5.4. Exception No. 2: A fluorescent sun/heat lamp employing circuit interrupting lampholders need not comply with this requirement. 10 Cords and Plugs 1 0.1 If a sun/heat lamp is provided with a directly attached flexible cord, an attachment plug shall be provided on the cord for connection to the supply circuit. If a directly attached flexible cord is not provided, the lamp shall have terminals using male pins, blades, or the equivalent that will accommodate an acceptable plug. See 1 0.4, 1 0.5 and 1 9.2. 1 0.2 A sun/heat lamp employing a screw shell-type lampholder shall have an attachment plug of either the grounding or polarized type. The grounded conductor of the cord is to be connected to the screwshell of the lampholder and to the grounded blade of the attachment plug. See 33.7. 1 0.3 The ampacity of the flexible cord shall be not less than the rated current of the sun/heat lamp.UL 482-2009 pdf download.