GENERAL ROPE GUIDELINES: A few common sense rules will assist you in getting the best performance from your rope. Remember a rope under tension stores a great deal of energy. It’s the duty of the end user to know the proper techniques for their particular applications. The synthetic fibers used in rope construction all share the same three enemies:sunlight, chemicals and abuse.
SUNLIGHT:Avoid storing ropes in direct sunlight.
CHEMICALS:Chemical exposure can damage a rope. Avoid chemical contact.
ABUSE:Know and log the history of your ropes from purchase to retirement. Downgrade or retire any rope that has been cut or is heavily abraided.
TENSILE STRENGTHS: These strengths are the tension at which a rope can be expected to break. To estimaate the minimal tensile strength of a new rope, reduce the approximate average by 15%. Remember, these strengths are for new rope tested under laboratory conditions. Age, use and the type of determination used can lower this figure significantly.
WORKING LOADS: The working load is a guideline for use of a rope in good condition for non-critical applications and should be reduced where life, limb or valuable property are involved, or for exceptional service such as shock, sustained loading, severe vibration, etc. The working load is normally expressed as a percentage of the minimum tensile strength and is a rule of thumb, placed at between 11% and 20% of the new rope tensile strength.
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