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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.
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]
The surface-supplied diver is much less likely to have an "out-of-air" emergency than a scuba diver as there are normally two alternative breathing gas sources available. Surface-supplied diving equipment usually includes communication capability with the surface, which improves the safety and efficiency of the working diver. [4]
Deep sea diving is underwater diving, usually with surface-supplied equipment, and often refers to the use of standard diving dress with the traditional copper helmet. Hard hat diving is any form of diving with a helmet, including the standard copper helmet, and other forms of free-flow and lightweight demand helmets.
Routine scuba diving procedures (order may vary slightly, and some are also relevant to surface supplied diving, though details may vary): Dive planning – The process of planning an underwater diving operation. Selection of equipment – A diver is expected to be able select appropriate equipment and check it for fit and function.
See: Surface-supplied diving#Gas panel. The control equipment for providing breathing gas to surface supplied divers via umbilicals. Primary and reserve gas is supplied to the panel through shutoff valves from low pressure compressors or high pressure storage cylinders. gas reversal point
Underwater diving is practiced as part of an occupation, or for recreation, where the practitioner submerges below the surface of the water or other liquid for a period which may range between seconds to the order of a day at a time, either exposed to the ambient pressure or isolated by a pressure resistant suit, to interact with the underwater ...
See: Surface-supplied diving#Air line. Simple low pressure hose carrying breathing air from a surface supply to a diver. airline diving. Also: "hooka", "hookah" See: Surface-supplied diving#Air line. Surface-supplied diving where the breathing air is supplied to the diver by a simple hose. The diver usually breathes through a mouth held demand ...