The document outlines practical considerations for underwater welding, highlighting relevant international standards such as ISO 15609-1, ISO 15618-1, and ISO 17637. It discusses various factors influencing wet welding, including water conditions and welder experience, as well as the importance of job preparation and equipment. The document emphasizes the necessity of clear communication and proper inspection protocols to ensure effective underwater welding practices.

1. PRACTICAL CONSIDERATIONS FOR UNDERWATER WELDING
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2. WHICH STANDARDS
ARE INVOLVED
 INTERNATIONAL STANDARD ISO 15609-1
Specification and qualification of welding procedures for
metallic materials
 INTERNATIONAL STANDARD ISO 15618-1
Qualification testing of welders for underwater welding
Part 1: Hyperbaric wet welding
 INTERNATIONAL STANDARD ISO 17637
Non-destructive testing of welds
Visual testing of fusion-welded joints
 Wet welding repair methods are recognized by various
classification societies
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3. o Velocity of water current
o Underwater visibility
o Water depth
o Material group
o Welding position
o Joint type and preparation
o Welder experience
o Salt or fresh water
o And much more…
WHICH VARIABLES
ARE INVOLVED
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4. o Inventory of joint configuration
o Inventory of structural design
o Recognize limited wet welding strength
In relation to design and weld position
o Develop and qualify welding procedure
specification
o Qualify diver welders for the job
JOB PREPARATION
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5. o Anodes
o Reinforcement plates and sleeves
o Crack repair
o Stiffeners, bracings , girders
o Cofferdams
o Sheet pile repair
o Rudder repair
o Rope quard installation
o Conductor frames
o And much more
WET WELDING APPLICATIONS
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6. o Clear, concise, correct, coherent and
well organized
o It comes with video footage and close
up pictures which are logged and time
stamped for easy navigating
o Weld inspections according ISO 17637
INSPECTION AND
REPORTING OF
UNDERWATER WELDING
If one cannot measure it, one cannot manage it.
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