Section R. 408.10993 - Location and mountingRule 993.
(1) Detectors shall be located or by other means be protected from mechanical or physical impact which could render them inoperable.(2) Detectors subject to climatic or corrosive atmospheres, or contaminants shall be provided with protection to maintain operability.(3) Detectors shall be supported independently of their attachment to wires or tubing.Mich. Admin. Code R. 408.10993