Rope and rope products

ROPE LENGTH AND BREAKING LOAD ACCORDING TO ROSR


ROSR
is the Dutch abbreviation for the Inspection Regulations for Ships on the Rhine, 1995 and the regulations are generally known under this abbreviation.
The regulations stipulate the technical requirements for inland and seagoing vessels to be allowed to sail in the Rhine catchment.
The regulations are issued by the Central Commission for Rhineshipping (CCR). The CCR has its headquarters in Strasbourg.

ROSR Artikel 10.02, Clause 2a - Miscellaneous equipment


2. In addition the following must at least be present:
a. Steel ropes for mooring:
An inspection certificate for the prescribed steel ropes in accordance with the European standard EN 10 204: 1991, model 3.1 must be on board.
These ropes may be replaced by other cables with the same length and the same breaking strength.

The breaking strength of these cables must be indicated in an inspection certificate.

ROPE LENGHT ACCORDING ROSR


Each ship must be equipped with a minimum of 3 hawsers (if the ship has a length of less than 20 metres the shortest hawser can be disregarded), the minimum length must be:

1st hawser: shiplength + 20 metres, however not more than 100 metres
2nd hawser: 2/3 of the first hawser
3rd hawser: 1/3 of the first hawser

ROPE BREAKING LOAD ACCORDING ROSR


These hawsers must be rated with a minimum breaking strength (Rs) that is determined with the aid of the following formula:

Length x beam x depth = LxBxD


For LxBxD up to 1000 m³:

Rs= 60 + LxBxD = kilo Newtons
-----------------------------------------------
10


For LxBxD greater than 1000 m³:

Rs= 150 + LxBxD = kilo Newtons
-------------------------------------------------
100


1 kilo Newton x 102 = kilogrammes
1 kilogramme / 102 = kilo Newtons

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