DNVGL: Technical Update 10-2014‏

Classification Societies, Containers, Technical — By on September 2, 2014 at 6:53 AM

DNV GL Logo 1 copyAPPLICATION OF LC AND RSCS NOTATIONS AND ACCEPTANCE OF CONTAINER SECURING EQUIPMENT

1 GL LEGACY NOTATIONS LC AND RSCS

The GL legacy notation LC (Lashing Computer) provides requirements related to the strength safety of the stowage and lashing of containers on container ships in worldwide service, based on more accurate accelerations than previous Rule standard accelerations.
The GL legacy notation RSCS (Route Specific Container Stowage) may be requested provided the LC notation has been assigned. Compared to the LC notation which is for worldwide service based on North Atlantic sea states, the RSCS notation provides requirements related to the strength safety of the stowage and lashing of containers in route-specific service.
Both the LC and RSCS notations require the lashing computer on board the ships to be certified by the Society.

The LC and RSCS notations are stand-alone GL legacy notations and do not require compliance with other GL legacy structural requirements regarding the hull structure of container ships.

2 APPLICATION OF LC AND RSCS TO DNV-CLASSED SHIPS

Both LC and RSCS notations are based on more accurate accelerations calculated from each ship’s specific data and the worldwide wave data. The safety of containers carried on board is therefore ensured with more optimised container stowage. The RSCS notation also provides an efficient method for optimizing the container deck stowage, giving operators an opportunity to maximize the container intake when trading on more benign routes. Following their introduction in 2013, the LC and RSCS notations have become a market standard for efficient container- stowage planning, and the merger of DNV and GL has made the methodology available to DNV-classed ships too.

3 GL LEGACY NOTATIONS LC AND RSCS

The GL legacy notation LC (Lashing Computer) provides requirements related to the strength safety of the stowage and lashing of containers on container ships in worldwide service, based on more accurate accelerations than previous Rule standard accelerations.
The GL legacy notation RSCS (Route Specific Container Stowage) may be requested provided the LC notation has been assigned. Compared to the LC notation which is for worldwide service based on North Atlantic sea states, the RSCS notation provides requirements related to the strength safety of the stowage and lashing of containers in route-specific service.
Both the LC and RSCS notations require the lashing computer on board the ships to be certified by the Society.

The LC and RSCS notations are stand-alone GL legacy notations and do not require compliance with other GL legacy structural requirements regarding the hull structure of container ships.

4 APPLICATION OF LC AND RSCS TO DNV-CLASSED SHIPS

Both LC and RSCS notations are based on more accurate accelerations calculated from each ship’s specific data and the worldwide wave data. The safety of containers carried on board is therefore ensured with more optimised container stowage. The RSCS notation also provides an efficient method for optimizing the container deck stowage, giving operators an opportunity to maximize the container intake when trading on more benign routes. Following their introduction in 2013, the LC and RSCS notations have become a market standard for efficient container- stowage planning, and the merger of DNV and GL has made the methodology available to DNV-classed ships too.

The LC and RSCS notations may be formally assigned to DNV-classed ships with the Container Ship notation as from October 2014.

5 ACCEPTANCE OF GL-LEGACY- CERTIFIED CONTAINER SECURING EQUIPMENT ON DNV-CLASSED SHIPS

Following the merger of DNV and GL, it has been decided that GL-legacy-certified container securing equipment, such as twist locks and lashing bars, may be accepted on DNV-classed ships with the Container Ship notation provided that:

 the container securing equipment is certified by GL legacy and
 the Cargo Securing Manual is approved to include the container securing equipment certified by GL legacy.

The acceptance process is initiated by the owners or operators and the following actions are required:

 an application for the acceptance of GL-legacy- certified container securing equipment on DNV- classed ships shall be submitted, specifying the types and quantities of the equipment and
 the Cargo Securing Manual shall be prepared for approval, including the container securing equipment certified by GL legacy, and
 the product certificates for the GL-legacy-certified container securing equipment shall be available for verification by the attending surveyor.

For further details, please contact: MCANO875 Tankers and Dry Cargo Ships:

CONTACT

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