Permanent means of access_tcm36-191954

SOLAS Chapter II-1 Regulation 3-6 Oct.2004Summary Technical Details : 

Slide No. 1 SOLAS Chapter II-1 Regulation 3-6 Oct.2004Summary Technical Details

General : 

Slide No. 2 References: MSC.151(78) SOLAS II-1/3-6 MSC.158(78) Technical Provisions Unified Interpretation UI SC191 General Applicable to: Tankers for Oil* > 500 gross tonnage (ESP) Bulk Carriers* > 20,000 gross tonnage * With keel laying on or after January 1, 2005

Approval : 

Slide No. 3 Approval Main Drawings : - Initial evaluation – access not approved ( See standard approval comment at the end ) Access Manual : - All documentation relevant to SOLAS II-1/3-6 to be included and approved. - DNV plan to prepare an access manual template for guidance (See standard approval comment at the end ) (Note : Until otherwise noted MTPNO864 shall be consulted prior to approval of the access manual)

Safe Entry into Tanks (SOLAS II-1/3-6 Para. 3.1 & UI) : 

Slide No. 4 Safe Entry into Tanks (SOLAS II-1/3-6 Para. 3.1 & UI) Cargo holds/tanks and Ballast tanks in cargo area (not fore peak tank) and Cofferdams and other spaces in the cargo area Access for entry shall be direct from deck Double bottom spaces or Forward ballast tank Access for entry may be from pump room/deep cofferdam/pipe tunnel/cargo hold/double hull spaces or similar not intended for carriage of oil. Other tanks and spaces outside of cargo area Not covered by requirements to safe entry

Safe Entry into Tanks (SOLAS II-1/3-6 Para. 3.2 & UI) : 

Slide No. 5 Safe Entry into Tanks (SOLAS II-1/3-6 Para. 3.2 & UI) Tanks l>35m or Tanks subdivided by swash bulkhead or similar (double side tanks) Two Access hatchways Tanks l<35m: One Access hatchways Bulk cargo holds: Two Access hatchways

Safe Entry into Tanks (T.P. 3.13 & UI) : 

Slide No. 6 Safe Entry into Tanks (T.P. 3.13 & UI) Inclined ladders: Inclined ladders shall generally be used for entry into tanks Vertical ladders may be used in lieu of inclined ladders for : - Narrow ballast tanks b<2.5m As second access in bulk carrier cargo holds As second access to cargo tanks provided vertical distance to deep stringer/bottom h<6m

Access to (TP & UI Ch. 3.5) … : 

Slide No. 7 Access to (TP & UI Ch. 3.5) …

Access to (TP & UI Ch. 3.5 and Ch. 3.10) … : 

Slide No. 8 Access to (TP & UI Ch. 3.5 and Ch. 3.10) …

Slide 9: 

Slide No. 9 Standard Inclined Ladder (TP Ch. 3.6 & UI)

Standard Vertical Ladders (TP Ch. 3.4 and Ch. 3.6 & UI) : 

Slide No. 10 Standard Vertical Ladders (TP Ch. 3.4 and Ch. 3.6 & UI)

Access within (SOLAS II-1/3-6 Para. 5 & UI) : 

Slide No. 11 Access within (SOLAS II-1/3-6 Para. 5 & UI) Access trough vertical and horizontal openings: - Requirement apply to “spaces in, and forward of, the cargo area” Access to every bay formed by floor and girders Access within openings in double bottom

Access within (SOLAS II-1/3-6 Para. 5 & UI) : 

Slide No. 12 Access within (SOLAS II-1/3-6 Para. 5 & UI)

Access within (SOLAS II-1/3-6 Para. 5 & UI) : 

Slide No. 13 Access within (SOLAS II-1/3-6 Para. 5 & UI)

Access for Inspection : 

Slide No. 14 Access for Inspection PMA (Permanent Means of Access) for inspection is required for : - Ballast tanks in and forward of cargo area - Cargo tanks - Spaces having the shape of a ballast tank (e.g. double side space) (TP Table 1 and 2 & UI) Alternative means: To be used for access to areas and spaces in and forward of cargo area, not accessible from permanent means. General requirements: - As far as practicable, PMA to be built-in as an integral part of the structural elements. (TP 1.4 and 3.2)

Access for Inspection : 

Slide No. 15 Access for Inspection Access platforms : Min clear width of 600mm Min width 450mm going around vertical structure Guard rail (solid bar) 1000m ab. platform Intermediate bar 500mm ab. platform Stanchions not more than 3.0m apart Sloping structure (> 5 degrees) to be non-skid-type (TP Ch. 3.3) Resting platforms for access ladders follow the same standard

PMA for Bulk Carriers (TP & UI Table 2) : 

Slide No. 16 PMA for Bulk Carriers (TP & UI Table 2)

PMA for Cargo Hold : 

Slide No. 17 PMA for Cargo Hold TP Table 2, item 1.1 Access to be provided to overhead structure at both sides of cross deck and in vicinity of CL. PMA to be accessible from cargo hold access or directly from main deck. Alternative means may be used if underdeck structure is within 17m above the tank top. TP Table 2, item 1.6 PMA to be provided for at least 25% of the vertical frames in the hold. As a min, PMA should be arranged forward, middle, and aft ends of the hold, at either sides. Alternative means may be used for the remaining frames.

PMA for Bilge Hopper Tanks : 

Slide No. 18 PMA for Bilge Hopper Tanks TP Table 2, item 2.5 Access to the continuous longitudinal PMA to be provided in the vicinity of the tank access. TP Table 2, item 2.5 For bilge hopper tanks with height greater than 6m, PMA to be provided along the side shell webs at a min. distance 1.2m below the top of the clear opening of the web ring. Access to tank bottom to be provided at each end of the tank.

PMA for Top Side Tanks : 

Slide No. 19 PMA for Top Side Tanks TP Table 2, item 2.3 PMA fitted at the end bays, and at the middle bay of the tank, spanning from the the tank base to the inboard top of tank. PMA may utilize existing longitudinal structure arranged inside the tank. TP Table 2, item 2.1 For top side tanks with height greater than 6m, continuous longitudinal PMA to be provided along the side shell webs at a distance between 1.6m and 3.0m below the deck. Access to the continuous longitudinal PMA to be provided in the vicinity of the tank access.

PMA for Inspection Ore Carriers : 

Slide No. 20 PMA for Inspection Ore Carriers TP Table 2, item 2.8 PMA shall be provided in accordance with the applicable sections of table 1. For cargo holds ref. Table 1, item 1.1.2 (access platform at each side) and Table 2, item 1.1/1.2 (access to cross deck) Wing tanks ref. Table 1, item 1.1 (as for oil cargo tanks)

PMA in narrow Ballast tanks : 

Slide No. 21 PMA in narrow Ballast tanks < 6.0m < 6.0m < 6.0m < 6.0m TP Table 1, item 2.1.2 Max. spacing between PMA 6m. PMA to be integrated in hull structure. Stringers as far as possible to be aligned with stringers on transverse bulkhead. TP Table 1, item 2.1.1 Where the upper side stringer is situated more than 6m below the deck head, additional continuous longitudinal PMA should be arranged between min. 1.6m and max. 3m below deck.

PMA in narrow Hopper tank : 

Slide No. 22 PMA in narrow Hopper tank TP Table 1, item 2.2.1 Longitudinal continuous PMA arranged 1.6m to 3m below top of hopper section with platform at web giving access to upper hopper knuckle. OR Longitudinal continuous PMA arranged min. 1.2m below top of hopper web opening allowing for use of portable means of access to reach critical areas. > 6.0m TP Table 1, item 2.2 Where the vertical distance between the tank bottom and the upper hopper knuckle is above 6m, PMA should be arranged. 1.6 – 3m 1.2m

PMA in large tanks : 

Slide No. 23 PMA in large tanks TP Table 1, Item 1.1.2 Longitudinal access at each side of the tank at a min. distance of 1.6m from the deck. At least one being within 6m from deck. The other being within 3m from deck. TP Table 1, Item 1.1.4 Integrated longitudinal access at stiffened surface of the longitudinal bulkhead aligned with stringers on the transverse bulkhead. May be replaced by alternative means of access provided permanent fittings (for wire platform or similar) are arranged at upper platform. (This is considered as a future option when efficient alternative means are available. Such alternative means should be available onboard and readily accessible for survey without filling of water in the cargo tank) Cargo tanks and wide ballast tanks of height greater than 6m:

PMA in large tanks : 

Slide No. 24 PMA in large tanks TP Table 1, item 1.1.1 Permanent access platform at Deck/bulkhead connections arranged between 1.6m and 3.0m below deck at the stiffened side of the bulkhead. TP Table 1, item 1.1.3 Arrangements for access between longitudinal PMA and PMA on transverse bulkhead to be provided. TP Para. 3.5 Access to PMA from open deck/ between PMA provided by ladders with resting platforms spaced not more than 6.0m apart.

PMA in large tanks : 

Slide No. 25 PMA in large tanks TP Table 1, item 1.1.5 Transverse access giving access to tie flaring brackets on each side of the tank should be arranged. For cross ties in centre tank longitudinal access with transverse extension to tie flaring bracket should be satisfactory

Tankers with External Deck Structure : 

Slide No. 26 Tankers with External Deck Structure Transverse bulkheads

Access for Inspection (TP Table 1 Item 1.1.2) : 

Slide No. 27 Access for Inspection (TP Table 1 Item 1.1.2)

Slide 28: 

Slide No. 28

Standard Comments to Approval : 

Slide No. 29 Standard Comments to Approval General comment Main Drawings: Keel laying 1.Jan.2005 and 1.Jan.2006: With reference to MSC Circular 1107 DNV will, unless otherwise instructed, approve for compliance with SOLAS II-1/3-6 applying early implementation of MSC.151(78) and MSC.158(78) in lieu of MSC.133(76. Keel laying after 1.Jan.2006: No general comments necessary. Specific comments to the structural arrangement shown in the main drawings: The drawing is considered with respect to permanent means of access as specified in MSC.158(78) and the following observations were made: -.......... -...... Final evaluation of compliance with SOLAS II-1/3.6 will be carried out when Ship Structure Access Manual is received for approval.

Standard Comments to Approval : 

Slide No. 30 Standard Comments to Approval Approval comments to the Ship Structure Access Manual : Keel laying 1.Jan.2005 and 1.Jan.2006: The Ship Structure Access Manual is approved for compliance with SOLAS II-1/3-6 applying early implementation of MSC.151(78) and MSC.158(78) in lieu of MSC.133(76) and MSC.134(76). Keel laying after 1.Jan.2006: No general comment on application of SOLAS II-1/3-6 is considered necessary.