Nominal Strength (Or Catalog Strength); Design Factor (Or Safety Factor) - Beta Max Beta Lite Manual Del Usuario

Nominal Strength (or Catalog Strength)

• This number, supplied by the wire rope manufacturer, refers to a controlled
environment, straight-line pull test on a new, unused wire rope. The rope is
actually pulled until it breaks and this value is called nominal strength. Since
nominal strength is the point of failure, never use this value as an indicator
of the maximum working load capacity of the rope. This is not the
maximum working load capacity. Maximum working load capacity must
be calculated before work is started!

Design Factor (or Safety Factor)

• The working load of a wire rope must be calculated by a using a design factor.
This number will be much less than the given nominal strength to provide a
margin of safe operation. The design factor will vary depending upon the type
of machine, work load, and installation. The end user/operator must determine
the applicable design factor before operating the hoist for safe operation.
NOTE: Beta Max hoists require a 5:1 safety factor with regard to wire rope.
WARNING
No wire rope or wire rope sling should ever be installed or used without full knowledge,
consideration, and application of the design factor for the intended use. Failure to comply may
result in equipment damage, bodily injury, or possible death.
• Design factors have been established by the Occupational Safety and Health
Administration (OSHA), the American National Standards Institute (ANSI),
the American Society of Mechanical Engineers (ASME), and similar
government and industrial organizations. Please consult one of these sources to
determine the correct design factor for the work being performed.
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