JWG/PMA
Unified Interpretations
Final Draft, v2.2
21 Nov 2003
Technical Background Elevated passageways in particular for access to deck transverses and upper part of transverse bulkheads and longitudinal bulkheads are subject to structural damages due to sloshing of liquid in the tank, corrosion and fatigue. Such damages would render the effective use of the permanent means of access when needed for survey and inspection of under deck structure. Innovative approaches in particular a development of robot in place of elevated passageways are encouraged and it is considered worthwhile to provide the functional requirement for the innovative approach. Ref. 5
JWG/PMA
Unified Interpretations
Final Draft, v2.2
21 Nov 2003
SOLAS Reg.II-1/3-6 2.3 The construction and materials of all means of access and their attachment to the ship?s structure shall be to the satisfaction of the Administration. The means of access shall be subject to survey prior to, or in conjunction with, its use in carrying out surveys in accordance with regulation I/10. Interpretation: Inspection The PMA arrangements, including portable equipment and attachments, are to be periodically inspected by the crew or competent inspectors as and when it is going to be used to 4confirm that the PMAs remain in serviceable condition. Procedures 1. Any authorised person using the PMA shall assume the role of inspector and check for obvious damage prior to using the access arrangements. Whilst using the PMA the inspector is to verify the condition of the sections used by close up examination of those sections and note any deterioration in the provisions. Should any damage or deterioration be found, the effect of such deterioration is to be assessed as to whether the damage or deterioration affects the safety for continued use of the access. Deterioration found that is considered to affect safe use is to be determined as “substantial damage” and measures are to be put in place to ensure that the affected section(s) are not to be further used prior effective repair. 2. Statutory survey of any space that contains PMA shall include verification of the continued effectiveness of the PMA in that space. Survey requirements of the PMA shall not be expected to exceed the scope and extent of the survey being undertaken. If the PMA is found deficient the scope of survey should be extended as found appropriate.. 3. Records of all inspections are to be established with specific requirements detailed in the ships Safety Management System. The record is to be readily available to persons using the PMAs and it is recommended that a copy be attached to the PMA Manual. The original records should include as a minimum the date of the inspection, the name and title of the inspector, a confirmation signature, the sections of PMA inspected, verification of continued serviceable condition or details of any deterioration or substantial damage found. A file of permits issued should be maintained for verification. Technical Background It is recognised that PMA is subject to deterioration in a long term due to corrosive environment and external forces from ship motions and sloshing of liquid contained in the tank. PMA therefore should be inspected at every opportunity of tank/space entry. The above interpretation is to be contained in a section of the PMA Manual. 6
JWG/PMA
Unified Interpretations
Final Draft, v2.2
21 Nov 2003
Ref. 7
JWG/PMA
Unified Interpretations
Final Draft, v2.2
21 Nov 2003
SOLAS Reg.II-1/3-6 3 Safe access to cargo holds, cargo tanks, ballast tanks and other spaces 3.1 Safe access* to cargo holds, cofferdams, ballast tanks, cargo tanks and other spaces in the cargo area shall be direct from the open deck and such as to ensure their complete inspection. Safe access to double bottom spaces may be from a pump-room, deep cofferdam, pipe tunnel, cargo hold, double hull space or similar compartment not intended for the carriage of oil or hazardous cargoes. * Refer to the Recommendations for entering enclosed spaces aboard ships, adopted by the Organization by resolution A.864(20). Interpretation Access to a double side skin space of bulk carriers may be either from a topside tank or double bottom tank or from both. Technical Background Unless used other purposes, the double side skin space is to be designed as a part of a large U-shaped ballast tank and such space is to be accessed through the adjacent part of the tank, i.e. topside tank or double bottom/bilge hopper tank. Access to the double side skin space from the adjacent part rather than direct from the open deck is justified. Ref.
8
JWG/PMA
Unified Interpretations
Final Draft, v2.2
21 Nov 2003
SOLAS Reg.II-1/3-6 3.2 Tanks, and subdivisions of tanks, having a length of 35 m or more shall be fitted with at least two access hatchways and ladders, as far apart as practicable. Tanks less than 35 m in length shall be served by at least one access hatchway and ladder. When a tank is subdivided by one or more swash bulkheads or similar obstructions which do not allow ready means of access to the other parts of the tank, at least two hatchways and ladders shall be fitted. Interpretation A cargo oil tank of less than 35 m length without a swash bulkhead requires only one access hatch. Technical Background Ref.
9
百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说教育文库永久检验通道PMA - MSC.133(76) - 图文(2)在线全文阅读。
相关推荐：