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Divers Alert Network (DAN) is a group of not-for-profit organizations dedicated to improving diving safety for all divers. It was founded in Durham, North Carolina, United States, in 1980 at Duke University providing 24/7 telephonic hot-line diving medical assistance.
Surface supplied commercial diving equipment on display at a trade show. Commercial diving may be considered an application of professional diving where the diver engages in underwater work for industrial, construction, engineering, maintenance or other commercial purposes which are similar to work done out of the water, and where the diving is usually secondary to the work.
A diving operation is a professional dive and the activity in preparation for, and in support of, the specific dive. The diving operation is controlled by the diving supervisor, is expected to follow the dive plan, is conducted by the diving team, and is recorded in the diving operations record (though the terms may have regional variations).
Commercial diving is industry related and includes civil engineering tasks such as in oil exploration, offshore construction, dam maintenance and harbour works. Commercial divers may also be employed to perform tasks related to marine activities, such as naval diving, ships husbandry, marine salvage or aquaculture.
Underwater inspection of underwater structures, installations, and sites is a common diving activity, applicable to planning, installation, and maintenance phases, but the required skills are often specific to the application. Much use is made of video and still photographic evidence, and live video to allow direction of the inspection work by ...
The diving depth record for offshore diving was achieved in 1988 by a team of professional divers (Th. Arnold, S. Icart, J.G. Marcel Auda, R. Peilho, P. Raude, L. Schneider) of the Comex S.A. industrial deep-sea diving company performing pipe line connection exercises at a depth of 534 meters of sea water (msw) (1752 fsw) in the Mediterranean ...
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Blue-water diving – Diving in mid-water where the bottom is out of sight; Cave – Natural void under the Earth's surface. See also Cave diving. Sump (cave) – Passage in a cave that is submerged under water; Culvert – Structure to channel water past an obstacle; Dam – Barrier that stops or restricts the flow of surface or underground ...