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DNVGL-CP-0255

Wire ropes

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Organization: DNVGL
Publication Date: 1 May 2016
Status: active
Page Count: 11
scope:

Scope and application

This programme is applicable for the approval of material manufacturers of:

Wire ropes,

as referred in the Society's rules and standards. For a description of general requirements, conditions and procedures related to the approval, please refer to DNVGL CP 0346 which shall be applied in combination with this programme.

The product(s) used for approval testing (see Sec.3) will place limitations on the range of approval. The approval will be limited to:

wire rope type

wire rope construction

maximum wire rope diameter

core construction (i.e. fibre, steel etc.)

lay type

lay direction

breaking load of the wire rope

tensile strength grade of the wires of the wire rope

However, test data supplied for one construction may cover wire ropes of other constructions in the same wire rope class (for definition of classes, see API 9A), provided tested and covered constructions have:

same type of core

same type of lay type and direction

same wire shape, grade and finish

same number of strands

same construction type (see ISO 17893 Table 2), defined as follows:

single lay types

parallel lay types, divided as follows:

seale

warrington

filler

combined parallel lay (WS) types

multiple operation lay types, divided as follows:

cross lay

compound lay.

Approval will be given for the manufacture of products and materials in accordance with the Society's rule requirements. However, in case of absence of relevant rules and subject to prior agreement, approval may be given for the manufacture of products and materials specified in recognised standards.

Starting material/semi-finished steel products shall be produced at works approved by the Society.

when wire rope manufacturer operates their own steel making and/or rolling facilities to produce their own pre-material (wires/billets/ingots etc.), the manufacturer shall also use separate approval programmes DNVGL CP 0242 or DNVGL CP 0243 to approve these facilities, as appropriate.

when pre-materials for wire rope making are not produced by the wire rope manufacturer, these shall be procured from steelmaker/rolling mill correspondingly approved by the Society.

 

Document History

DNVGL-CP-0255
May 1, 2016
Wire ropes
Scope and application This programme is applicable for the approval of material manufacturers of: Wire ropes, as referred in the Society's rules and standards. For a description of general...

References

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