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Surface-supplied diver at the Monterey Bay Aquarium, Monterey, California US Navy Diver using Kirby Morgan Superlight 37 diving helmet [1]. Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either from the shore or from a diving support vessel, sometimes indirectly via a diving bell. [2]
Some surface supplied diving equipment is heavy and cumbersome, and the diver is usually assisted with dressing in by a diver's attendant, who is often also a diver, so the skills of assisting a diver to dress in are necessary for the diver. [1] The equipment involved includes: Exposure suit – Wetsuit, dry suit or hot water suit.
The definitive equipment for surface-supplied diving is the breathing apparatus which is supplied with primary breathing gas from the surface via a hose, which is usually part of a diver's umbilical connecting the surface supply systems with the diver, sometimes directly, otherwise via a bell umbilical and bell panel.
Routine Surface-supplied diving procedures: Preparing the surface supplied diving equipment. Dressing in the diver – Dressing into the diving suit, harness, bailout set, helmet or full-face mask and accessories. Pre-dive checks – Checks that all necessary equipment is correctly fitted and functioning.
Closed diving bell used to transfer saturation divers between the accommodation chamber and the underwater workplace. Saturation divers are lowered to the working depth and raised back to the surface in closed diving bells, which are pressurized to the same pressure as the dive depth. The diver is transferred to and from the hyperbaric ...
Professional divers diving with surface-supplied equipment may use a flow of cooling water analogous to a hot water suit. Tropical water is the natural temperature of bodies of water in tropical regions, due to heating by the sun and cooling by wind.
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