Scuba Diving and Snorkelling

Scuba and snorkelling advice and equipment

Technical Diving

Within a decade, technical diving has moved from being the preserve of extremists to become a mainstream, but specialized on the ground. The rationale behind technical diving has been reached only after passing through a series of challenges and control in the past. In late 1980, the Partnership Nitrox Technical Divers International became the first specialized technical training center, marking a revolution in diving. For the recreational diver, limit the diving depth to 40 m. and divers must surface directly into a course without restrictions. However, technical divers enjoy unlimited depth scuba diving and you may need to re-emerge along a narrower path, as in the technical cave diving. wreck diving also questions the ability the diver to deal with unstable conditions and labyrinthine corridors in an accident. After a deep dive, the diver's body has absorbed a large amount inert gas (mainly nitrogen). There is a life-threatening danger in the area without following a proper process of decompression during ascent.

Technical Diving is a relatively risky, therefore, follow the training course when students stricter admission standards. The instructor has the right reject unsuitable candidates in courses such as cave diving and technical diving re-breather. Generally, students participating in basic technical diving courses must have at least two to three years of diving experience, perhaps even as certified instructors recreational diving.

The main technical difference between divers and recreational divers is not his experience or value, but their mentality. Recreational divers are happy to swim over coral and fish, while technical divers are eager to test their limits. At a depth of 300 feet, the personality of the diver, a clear mind and technique are under massive stress. Even a small error can lead to results without control in this environment. So psychological fitness is even more important than physical fitness for a technical diver.

How to choose an agent of technical diving training? There are about five international training centers in Hong Kong, including the agent and IANTD Foundation PADI. Several points should be considered when selecting a training center: the availability of equipment and level, the insistence on reasonable and correct procedures training, experience in technical diving instructors, and the opinions of alumni. Although the costs could be another point to consider, the difference between a hundred a thousand dollars is meaningless compared to the value of your life.

The structure of the course of a technical diving course is similar to a break in the whole world of a basic level, even if you are a qualified instructor or experienced diver. The course of deep diving techniques consists of three different levels in the PADI and IANTD framework of systems. The basic course is called Advanced Nitrox Diver (IANTD) or in-depth Tech Apprentice Diver (PADI). It teaches the student the benefits, risks and proper procedures for diving to a depth of 45m high oxygen for decompression. This is deeper than recreational diving limit is. It is important to strictly follow the time and procedures for covering safety stops, otherwise decompression sickness (the Bends) could result. If a diver spends 30 minutes at a depth of 45m, will need about 40 extra minutes to decompress. After completing the basic course, students can proceed to the Diver Technical Nitrox (IANTD) Diver-Tec or depth (PADI). In this course, students dive as deep as 55 meters with two tanks of oxygen-rich (one is oxygen pure) to decompress. The diving depth of 30 minutes to 55 other 50 minutes are required for decompression. Apart from diving deep While the student is studying the impact of high pressure on the diver and the psychological changes and work on improving posture and buoyancy control technique.

The final course is Trimix Diver. The diver uses a combination of low oxygen, high and low nitrogen gas mixtures of helium to a dive of 80 meters. This mixture gas is essential for a deep dive and air pressure negative ordinary places in the body of diving to depths of over 55m. 21% in the air after 55m depth the diver will conrulse and even lose consciousness – this is Toxcity oxygen. Improper use of trimix gases, however, also cause problems, therefore, specialized training is a necessity.

All technical diving courses include lectures, pool work and the practice deep water. The ratio of instructor to students is well below the recreational diving courses where an instructor handles 3-4 students and the relationship is still stronger in certain courses, to account for the more complicated nature of the course.

Technical Diving is still a risky business, technology and experience acquired technical diving can feed back into recreational diving to improve the security level for the whole diving industry.

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