UL 1206-2009 pdf download – Electric Commercial Clothes- Washing Equipment.
7 Frame and Enclosure 7.1 An appliance shall be formed and assembled so that it will have the strength and rigidity necessary to resist the abuses to which it may be subjected, without increasing the risk of fire, electric shock, or injury to persons due to total or partial collapse with resulting reduction of spacings, loosening or displacement of parts, or other serious defects. 7.2 An appliance shall be provided with an enclosure of material found by investigation to be acceptable for the application that shall house all parts that may present a risk of fire, electric shock, or injury to persons under any condition of use. 7.3 Among the factors that shall be taken into consideration when judging the acceptability of an enclosure material are its: a) Mechanical strength, b) Resistance to impact, c) Moisture – absorptive properties, d) Combustibility, and e) Resistance to distortion at temperatures to which the material may be subjected under conditions of normal or abnormal use. 7.4 An enclosure constructed of polymeric material shall comply with the requirements in Polymeric Materials, Section 44. 7.5 For an unreinforced, flat surface, cast metal shall not be less than 1 /8-in (3.2-mm) thick, malleable iron shall not be less than 3/32-in (2.4-mm) thick, and die-cast metal shall not be less than 5/64-in (2.0-mm) thick.
8 Accessibility of Uninsulated Live Parts and Film-Coated Wire 8.1 To reduce the likelihood of unintentional contact that involves a risk of electric shock from an uninsulated live part or film-coated wire, an opening in an enclosure shall comply with either (a) or (b). a) For an opening that has a minor dimension (see 8.5) less than 1 in (25.4 mm), such a part or wire shall not be contacted by the probe illustrated in Figure 8.1 . b) For an opening that has a minor dimension of 1 in or more, such a part or wire shall be spaced from the opening as specified in Table 8.1 . Exception: A motor need not comply with these requirements if the integral enclosure of the motor complies with the requirements in 8.2. 8.2 With respect to an integral enclosure of a motor as mentioned in the Exception to 8.1 : a) An opening that has a minor dimension (see 8.5) less than 3/4 in (1 9.1 mm) is acceptable if: 1 ) Film-coated wire cannot be contacted by the probe illustrated in Figure 8.3; 2) In a directly accessible motor (see 8.6), an uninsulated live part cannot be contacted by the probe illustrated in Figure 8.4; and 3) In an indirectly accessible motor (see 8.6), an uninsulated live part cannot be contacted by the probe illustrated in Figure 8.2. b) An opening that has a minor dimension of 3/4 in or more is acceptable if a part or wire is spaced from the opening as specified in Table 8.1 .