EXEMPTION: | A fan is considered guarded if it meets all of the following requirements: |
1. It is in a basement, tower, or room locked against unauthorized entrance. | |
2. The vertical clearance in passageways between the floor and power transmission beams, ceiling, or any other objects, is not less than five feet six inches. | |
3. The intensity of illumination must be a minimum of ten foot candles when the area is occupied. | |
4. The footing is dry, firm, and level. | |
5. The route followed by the oiler or authorized personnel is protected in such a manner as to prevent accident. | |
6. The periphery of the fan blade is covered by a shroud. |
Reference: | For guard opening requirements, see Table 200-1, Largest Allowable Guard Opening in, Make sure guards meet these requirements, WAC 296-806-20042. |