Ceiling fans.

CFR · 2024-01-01 · US · Title 10

(a) (1) The requirements of § 429.11 are applicable to ceiling fans; and (2) For each basic model of ceiling fan, a sample of sufficient size must be (i) Any represented value of the efficiency or airflow is less than or equal to the lower of: (A) The mean of the sample, where: And (B) The lower 90 percent confidence limit (LCL) of the true mean divided by 0.9, where: And (ii) Any represented value of the wattage is greater than or equal to the higher of: (A) The mean of the sample, where: And (B) The upper 95 percent confidence limit (UCL) of the true mean divided by 1.1, where: And (3) For each basic model of ceiling fan, (i) Any represented value of blade span, as defined in section 1.4 of appendix U to subpart B of part 430, is the mean of the blade spans measured for the sample selected as described in paragraph (a)(1) of this section, rounded to the nearest inch; (ii) Any represented value of blade revolutions per minute (RPM) is the mean of the blade RPM measurements (iii) Any represented value of blade edge thickness is the mean of the blade edge thicknesses measured for the sample selected as described in paragraph (a)(1) of this section, rounded to the nearest 0.01 inch; (iv) Any represented value of the distance between the ceiling and the lowest point on the fan blades is the mean of the distances measured for the sample selected as described in paragraph (a)(1) of this section, rounded to the nearest quarter of an inch; (v) Any represented value of tip speed is p

official document · source cfr-2024 · id 10:§ 429.32