Surface Supplied Diving
Surface Supplied Diving is a form of Diving in which the air is supplied from a source above the water, unlike in Scuba Diving in which the air supply is carried by the diver on a tank.
This form of Diving is usually used in Saturation Diving wherein divers work underwater for extended periods of time. Thus, a steady supply of oxygen is needed. Know more about Surface Supplied Diving in this section:
As the name suggests, surface supplied divers take their oxygen supply from a source on the surface of the water. The air usually comes from a Diving support vessel although it is also possible to come indirectly from a Diving chamber. If the source of air is a Diving support vessel, the air is supplied to the diver through what is called an umbilical cord. It is a hose through which air and, when needed, heat, is supplied.
Surface Supplied Diving is usually employed in situations where a person is required to dive for an extended period of time and at great depths. Usually, the depths where this is needed are beyond 50 meters or 165 feet.
Since Surface Supplied Diving involves great depths, it is usually accompanied by great risks. Because of this, there are guidelines to be followed to ensure the welfare of divers engaged in this risky business. One of which is the Occupational Safety and Health Standards for Commercial Diving Operations set by the United States Department of Labor.
The guidelines include the limit of the depths that surface supplied divers can go. The limit is set to 190 fsw (feet of sea water), although depths of up to 220 fsw are allowed if the dive lasts for only 30 minutes or less.
Surface Supplied Diving is an activity that is both exciting and risky. That is why if you need to do this form of Diving, make sure to take the necessary precautions and follow the guidelines to ensure a safe and hassle-free dive.
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