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UL Standard Test Probe Illustrated Impeller of UL 507 Figure 9.2
06 Nov, 2023 461

UL Standard Test Probe Illustrated Impeller of UL 507 Figure 9.2

Stationary fans and permanently connected fans 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. The impeller of a stationary or permanently connected fan shall be constructed so that it cannot be contacted by the probe illustrated in Figure 9.2. Exceptio...

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