| Exemption: |
A fan is considered guarded if it meets all of the following requirements: |
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– It is in a basement, tower, or room locked against unauthorized entrance. |
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– 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. |
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– The intensity of illumination must be a minimum of ten foot candles when the area is occupied. |
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– The footing is dry, firm, and level. |
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– The route followed by the oiler or authorized personnel is protected in such a manner as to prevent accident. |
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– The periphery of the fan blade is covered by a shroud. |