46 C.F.R. § 62.25-30 Environmental design standards.
Title 46 - Shipping
(a) All automation must be suitable for the marine environment and must be designed and constructed to operate indefinitely under the following conditions: (1) Ship motion and vibration described in section 41.37 of the American Bureau of Shipping's “Rules for Building and Classing Steel Vessels.” Note: Inclination requirements for fire and flooding safety systems are described in §112.05–5(c) of this chapter. (2) Ambient air temperatures described in section 41.29.1 and 41.29.2 of the American Bureau of Shipping's “Rules for Building and Classing Steel Vessels.” (3) Electrical voltage and frequency tolerances described in section 41.29.3 of the American Bureau of Shipping's “Rules for Building and Classing Steel Vessels.” (4) Relative humidity of 0 to 95% at 45 °C. (5) Hydraulic and pneumatic pressure variations described in section 41.39.3e of the American Bureau of Shipping's “Rules for Building and Classing Steel Vessels.” Note: Considerations should include normal dynamic conditions that might exceed these values, such as switching, valve closure, power supply transfer, starting, and shutdown. (b) Low voltage electronics must be designed with due consideration for static discharge, electromagnetic interference, voltage transients, fungal growth, and contact corrosion.
Title 46: Shipping
PART 62—VITAL SYSTEM AUTOMATION
Subpart 62.25—General Requirements for All Automated Vital Systems
§ 62.25-30 Environmental design standards.
