Inspection of Man Made and Natural Fibre ropes



Resplice
(if localised)
Retire
1.All ropes
- Bulk of surface yarns or strands reduced by 50% or more for a linear distance equal to the rope diameter X X
- Rope suspected of being shock loaded
X
- Exposures to excess temperature as specified for type of fibre
X
- Burns or melting visible for a length of over 4 rope diameters X X
- Abrasion on inside radius of eye, with bulk of surface yarns or strands reduced by 50% or more X X
- Rust on nylon (may indicate chemical damage) X X
- Oil and grease Wash in mild detergent
- Oil and grease X X
- Heavy surface fuzz-progressive Remove source of abrasion
- UV degredation, splinters on yarn surface
X
2.Braided cover and core ropes
- More than four consecutive pulled cover strands (wich cannot be reincorperated into cover braid). X X
- More than 3 cut cover strands X X
- Multiple cut yarns or filaments within distance of one pitch length X X
- Core visible through cover, because of cover damage
X
- Core damage-pulled, cut, abraded, powdered or melted strands
X
- Herniation-core pokes through cover
X
3.3-strand and 8-strand ropes
- 5% of yarns cut or badly dalaged in score between strands X X
- Cover yarns cut or abraded more than 50% on one or more crons of rope X X
- Strand cut to 5% of diameter within one lay length X X
- Powdering between adjacent strand contact surfaces X X
- Hockle or backturn X X
- 10% abrasion of one strand within lay length X X
4.Thermal damage
- The rope may show up as hard, melted, flattened area which can seriously damage the rope X X
- Melting or fusing affecting 20% or more of rope yarns, if in one lay length, if over more than one lay length X X
- Short term exposure to temperatures above fibre working temperature
   (For values please follow properties link in the navigation menu)
X

Data recorded from European Committee for Standardization (General specification for Fibre Ropes)