One Systems PT-10 - Manual (Page 29)

One Systems, Inc. 6204 Gardendale Dr., Nashville, TN 37215 www.onesystems.com 29
APPENDIX 1
(Projected Area Values)
The values below should be supplied to the specific pole manufacturer for safety
calculations. These values were determined by adding the projected areas of the high
frequency horns, the woofer cones and ports to the cross sectional area of the front of
each enclosure listed below. Each enclosure will present a different EPA based on wind
direction. The values listed below are for wind loads directly into the front of the
enclosure and represent maximum values.
103IM …………………………… 67 in^2 (43,000mm^2)
106IM…………………………… 136 in^2 (88,000mm^2)
108IM………………………….... 250 in^2 (161,290mm^2)
(60x40 HF horn)
208CIM………………………..… 207 in^2 (133,550mm^2)
108CIM………………………….. 169.4in^2 (109,278mm^2)
112IM …………………………… 600 in^2 (387,096 mm^2)
(60x40 HF horn)
212CIM…………………………… 600 in^2 (387,096mm^2)
212IM …………………………….. 804 in^2 (550,000 mm^2)
312CIM…………………………… 804 in^2 (550,000mm^2)
Cross Field Array……………….. 2,708in^2 (1,750,000mm^2)
CFA-2……………………………. 855 in^2 (552,100mm^2)
118IM Sub……………………….. 531 in^2 (342,516mm^2)
The products referenced in this manual are in conformity with the following
standards or other normative documents: Machinery Directive 2006/42/EC