LR_PMA固定通道布置讲义

Min 1.6m to max 3.0m below overhead structure (measured from main deck plating to top of platform)
Lloyd‟s Register Asia
SOLAS Regulation II-1/3-6 and •• A letter goes to all Flags from IACS, stating that
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Means of Access (MA) 通行装置
MA/ MSC 78
Revised SOLAS Regulation II-1 / 3-6 (Resolution MSC 151(78))
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Means of Access (MA)
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SOLAS Regulation II-1/3-6 and Technical Provisions for means of access for inspection” (TP) Keel Lay
MA/ MSC 78
SOLAS Regulation II-1/3-6 “Access to and within spaces in the cargo area of oil tankers and bulk carriers”
RESOLUTION MSC.151(78)
(adopted on 20 May 2004)
ADOPTION OF AMENDMENTS TO THE INTERNATIONAL CONVENTION FOR THE SAFETY OF LIFE AT SEA, 1974, AS AMENDED
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
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How structures are surveyed during their service life
How the crew will be able to monitor the condition of the ship.
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
>5m
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Double Hull Oil Tankers
Table 1 of Technical Provision Cargo Oil Tanks and Ballast Tanks other than Double Hull
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Lloyd‟s Register Asia
Means of Access (MA) 通行装置
SOLAS Regulation II-1 / 3-6
MA/ MSC 78
An Overall Survey is a survey intended to report on the overall condition of the hull structure and to determine the extent of additional Close-up Surveys. A Close-up Survey is a survey where the details of structural components are within the close visual inspection range of the Surveyor, i.e. normally within reach of hand. Thickness measurement is to be carried out where considered necessary by the Surveyor.
Means of Access (MA) 通行装置
MA/ MSC 78
© 2004 Lloyd‟s Register
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Means of Access / MSC 78 in association with IACS Draft Unified Interpretations SC [191] 通行装置
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Double Hull Oil Tankers (Table 1) Transverse Bhd in Cargo Oil Tank
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Continuous athwartship PMA arranged at the transverse bulkhead on stiffened surface (1.1.1)
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Concept
Access for Inspection
1. Permanent Means of Access (PMA) will be used for the regular inspection of representative area. 2. A free-standing portable ladder (5 m max) may be used for the less frequent inspection. 3. Remaining structures may be inspected where necessary basis using a raft in a cargo tank and hydraulic arm in a cargo hold.
MA/ MSC 78
SOLAS Regulation II-1 / 3-6 Overview
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Access for Inspection - Means of access for each space within cargo area for overall and close-up inspections and thickness measurements of the ship‟s structure
SOLAS Amended Regulation II-1 / 3-6 (Resolution MSC 151(78)) and
Amended Technical Provisions (TP) (Resolution MSC 158(78)) IACS Draft Unified Interpretations SC [191]
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
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Today it is notRegulation II-1/3-6 “MA” SOLAS known which countries will accept the early application of these resolutions. IACS Members will apply the amended • regulation and revised TP unless aof access for Technical Provisions for means reply to the inspection” otherwise. letter indicates(TP) Keel Lay MSC. 133(76) and 134 (76) - 1 Jan 2005 MSC 78 (May 2004) adopted the amendments:MSC. 151(78) and 158 (78) - 1 Jan 2006 Amendments may apply in advance subject to Flag Administration acceptance.
Changes with MSC 78
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Lloyd‟s Register Asia
Means of Access (MA) 通行装置
What is Means of Access (MA) in MSC 78 ?
MA/ MSC 78
Ships should be designed and built, considering
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置
MA/ MSC 78
Technical Provisions (TP)
RESOLUTION MSC.158(78) (adopted on 20 May 2004)
ADOPTION OF AMENDMENTS TO THE TECHNICAL PROVISIONS FOR MEANS OF ACCESS FOR INSPECTIONS
Y Sakamoto Yokohama Plan Approval Services Lloyd’s Register Asia August 2004
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Lloyd‟s Register Asia
Means of Access (MA) 通行装置
Objectives
MA/ MSC 78
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To provide with knowledge of:-
Access to Space - Safe access to cargo holds, cargo tanks, ballast tanks and other spaces Ship structure access manual Technical Provisions provide details
MSC. 133 (76) and 134 (76) - 1 Jan 2005 MSC 78 (May 2004) adopted the amendments:MSC. 151(78) and 158 (78) - 1 Jan 2006 Amendments may apply in advance subject to Flag Administration acceptance.
Each space, shall be provided with a permanent means of access to enable overall and close-up survey inspections and thickness measurements.. (Para. 2.1) Forward ballast tanks included. Void spaces in the fore peak are excluded.
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Lloyd‟s Register Asia
Means of Access (MA) 通行装置
MA/ MSC 78
ቤተ መጻሕፍቲ ባይዱ
Free standing portable ladder Max. 5 m (TP 3.8)
Max. 5 m
Platfor m
Lloyd‟s Register Asia
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Means of Access (MA) 通行装置 Portable ladders more than 5 m with a mechanical device to secure the upper end of the ladder (TP 3.9) IACS: Hooks are considered as an alternative to remotely controlled mechanical device if movement fore/aft and sideway can be prevented at the upper end. Innovative design is to be accepted if fits for the functional requirement with due consideration for safe use.