(IV-7-3) General Safety

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Rules IV Industrial Services Part 7 Offshore Substations Chapter 3 General Safety Section 5 Access and Transfer B.1.1 Design • The boat landings shall be designed to the expected loads from the largest expected size of service vessel. The maximum vessel size and approach speed shall be clearly marked on the boatlanding. • Two boatlandings should be considered, appropriately positioned to accommodate for prevailing wind, wave and tidal conditions. B.1.2 Operation • As a minimum, all personnel shall be provided with appropriate personal protection equipment including safety harness, head protection and a high visibility life jacket. A survival suit shall always be available for use. • Cargo, tools and baggage shall not be carried by persons. B.2 Boatlanding with gangway docking systems When a vessel mounted gangway which is connected directly or indirectly to the installation will be used, the following criteria should be applied: B.2.1 Design • All parts (structure of the installation, the landing platform, the gangway and the docking arrangement) shall be designed to withstand loads and impacts from the largest expected size of service vessel. • The vessel shall have a dynamic positioning system. • The maximum vessel size and approach speed shall be clearly marked on the structure. Maximum safe working load and maximum number of people allowed on the gangway at any one time shall be clearly marked. • The docking system shall be certified by an independent certification body. B.2.2 Operation • As a minimum, all personnel shall be provided with head protection and a high visibility life jacket. A survival suit shall always be available for use. • Cargo, tools and baggage shall not be carried by persons. C Personal Transfer by Crane C.1 Crane The crane shall be equipped with a special mode for personnel transfer. Range and operational loads are subject to the service requirements, mentioned in the specification and operations manual. C.2 Type of personnel transfer system The selection of transfer system depends on Company’s knowledge and experiences. Various transfer system are available in the offshore market. C.3 Location of boarding Several restrictions and requirements on board of the installation and on board the vessel shall apply for an easy boarding of personnel: • Size of area for both boarding and inspection for riggers as well as a free hoisting and lowering has to be safe and adequate. • Service range of lifting appliance during operation has to be considered. • Location of embarkation is to be marked. • Barriers to be installed to limit access only for authorized personal. • Area to be free of obstacles, e.g. each kind of piping, air vents, clamps, bollards etc. Edition 2013 Germanischer Lloyd Page 5–2
Rules IV Industrial Services Part 7 Offshore Substations Chapter 3 General Safety Section 5 Access and Transfer • Adequate illumination is to be provided. • Area to be wind-sheltered and spray protected. • Good visibility for both the crane operator and banksman. • Non-skid surface to be provided. • During transfer operation the required staff has to attend the operation permanently and without other duties. • In case of emergency safe exits for attending personnel is required. C.4 Approval, tests and surveys All equipment required for personal transfer, such as cranes, personal transfer systems, wire and loose gear etc. shall be approved, surveyed and tested. Type approval of sophisticated transfer carriers is preferable. Generally it is not part of the Certificate or Classification procedure for ships or offshore structures, but lifting appliances and personnel transfer systems may be included in the general survey scheme upon Owner’s request. C.5 Marking and identification C.5.1 Lifting appliances The following items shall be permanently marked on the appliance: • manufacturer • year of construction • type • order or manufacturing number • characteristics like rated load etc. • certificate number of Certifying Body • testing date: Month/year • any other necessary details C.5.2 Lifting equipment (personnel transfer system) The following items shall be permanently marked on the equipment: • manufacturer/ supplier • type • serial number • year of construction • weight of equipment in kilograms/tons • SWL/WLL in tons/kilograms • capacity of persons • minimum SWL for lifting appliance in tons • Certficate number of Certifying Body C.5.3 Interchangeable components The following items shall be permanently marked on the equipment: • certificate number • stamp of Certifying Body • testing date : Month/year • WLL in tons Edition 2013 Germanischer Lloyd Page 5–3
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(IV-7-3) General Safety

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