Christie Vive Audio CDA2, User Manual, Page: 10 / 28

2 Christie Vive Audio CDA2/CDA3 Amplifiers User Manual
020-100355-02 Rev. 1 (03-2014)
• The power switch does not break both sides of the primary mains. Hazardous energy can be present
inside the chassis when the power switch is in the off position. The mains plug or appliance coupler is
used as the disconnect device. The disconnect device shall remain readily operable.
• Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary
considerably in their susceptibility to noise-induced hearing loss, but nearly everyone will lose some
hearing if exposed to sufficiently intense noise for a sufficient time. These are the permissible noise
level exposures specified by the United States Occupational Safety and Health Administration (OSHA):
Duration (Consecutive) Sound Level (dBA), Slow Response
8 hrs
90
6 hrs 92
4 hrs 95
3 hrs 97
2 hrs 100
1.5 hrs 102
1 hr 105
30 min 110
≤ 15 min 115
According to the OSHA, any exposure in excess of the above permissible limits could result in some
hearing loss. Earplugs or protectors to the ear canals or over the ears must be worn when operating
this amplification system to prevent permanent hearing loss, if exposure is in excess of the described
limits.
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