Section 3 Auxiliary systems
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Construction & Classification of Submersibles & Diving Systems, July 2022 - Part 8 Submersible Systems Specific Requirements - Chapter 1 Overall Design Requirement for One-man Submersible Atmospheric Diving Suit System (ADS systems) - Section 3 Auxiliary systems

Section 3 Auxiliary systems

Parent topic: Chapter 1 Overall Design Requirement for One-man Submersible Atmospheric Diving Suit System (ADS systems)

3.1 General requirements

3.1.1 Atmospheric diving suits shall, where appropriate:
  1. contain valves, gauges and such other equipment as are necessary to control the propulsion and auxiliary systems, including any fuel supply and exhaust systems;
  2. contain such valves, gauges and other equipment as are necessary to control the depth, attitude, and rate of descent and ascent without inducing resonant or unstable motions;
  3. The ADS is to be provided with an emergency surfacing system, be fitted with jettisonable weights or other means, suitably protected against inadvertent operation, to achieve positive buoyancy in an envisaged emergency. This system is to permit the ADS to ascend to the surface when disconnected from its tether/umbilical. The system is to provide positive buoyancy sufficient to ascend to the surface from any operational depth. Emergency surfacing system activation is to require at least two positive manual actions for operation and is to be independent of electrical power. Emergency ascent calculations (addressing the net positive buoyancy provided and the resultant ascent rate) are to be submitted for review and approval. The emergency surfacing system is to operate properly under all anticipated conditions of heel and trim;
  4. be fitted with valves or other fittings to enable manipulators, grasping or anchoring devices and jettisonable equipment to be released in a planned or envisaged emergency;
  5. the ADS is to be configured such that it will automatically and naturally assume a normally upright or comfortable position, when not influenced by the pilot’s body motion or thrusters;
  6. the ADS stability analysis, test procedures and test results are to be submitted for approval;
  7. be fitted with an umbilical capable of maintaining services and of sufficient strength for its intended service;
  8. be equipped with an internal release, suitably protected against inadvertent operation, for severing or releasing the umbilical cable.

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