UL507

UL 507 Figure 9.2 Articulate Probe with Web Stop PA100A UL

9.3 Stationary fans and permanently connected fans up in UL 507 9.3.1 In accordance with 9.1.1, the design and intended use of a stationary fan or of a fan intended to be permanently connected electrically is to be considered when evaluating an enclosure or guard. 9.3.2 The impeller of a stationary or permanently connected fan shall be constructed so that it cannot be contacted by the probe illust...