Surface-supplied diving is diving using equipment supplied with breathing gas using a diver's umbilical from the surface, either from the shore or from a diving support vessel, sometimes indirectly via a diving bell.
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19 Facts About Surface-supplied diving
2.
The primary advantages of conventional surface supplied Surface-supplied diving are lower risk of drowning and considerably larger breathing gas supply than scuba, allowing longer working periods and safer decompression.
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3.
Saturation Surface-supplied diving is a mode of surface supplied Surface-supplied diving in which the divers live under pressure in a saturation system or underwater habitat and are decompressed only at the end of a tour of duty.
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4.
Essential aspect of surface-supplied diving is that breathing gas is supplied from the surface, either from a specialized diving compressor, high-pressure cylinders, or both.
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5.
Equipment needed for surface supplied Surface-supplied diving can be broadly grouped as Surface-supplied diving and support equipment, but the distinction is not always clear.
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6.
Surface-supplied diving equipment is required for a large proportion of the commercial diving operations conducted in many countries, either by direct legislation, or by authorised codes of practice, as in the case of IMCA operations.
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7.
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.
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8.
Sasuba and hookah Surface-supplied diving equipment is used for yacht or boat maintenance and hull cleaning, swimming pool maintenance, shallow underwater inspections.
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9.
Until the South African abalone fishery was closed, hookah was the only mode of Surface-supplied diving permitted for harvesting wild abalone, and several aspects of this practice were in direct contravention of the Surface-supplied diving regulations at the time.
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10.
The Surface-supplied diving suit is usually buoyant, so added weight is usually necessary.
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11.
Weight belts for surface supplied Surface-supplied diving are usually provided with buckles which can not accidentally be released, and the weight belt is often worn under the jacket harness.
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12.
When Surface-supplied diving in contaminated water, a drysuit with integral boots, sealed dry gloves and a helmet sealed directly to the suit provides the best environmental isolation.
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13.
Many Surface-supplied diving fatalities are the result of a cascade of incidents overwhelming the diver, who should be able to manage any single reasonably foreseeable incident.
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14.
Professional Surface-supplied diving operations tend to be less tolerant of risk than recreational, particularly technical divers, who are less constrained by occupational health and safety legislation and codes of practice.
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15.
Long term Surface-supplied diving disorders include dysbaric osteonecrosis, which is associated with decompression sickness.
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16.
Compressor diving is a method of surface-supplied diving used in some tropical sea areas including the Philippines and the Caribbean.
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18.
Compressor Surface-supplied diving was shown, and so called, used for pa-aling fishing, in episode 1 of the BBC television series Human Planet.
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19.
Almost all surface-supplied diving is done by professional divers, and consequently the training is done by schools which specialise in the training of professional divers.
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