Sept. 2009 Steel Wire Ropes for Traction

SPECIAL NOTICE: Please check each course for verification of approval before purchasing.

This test is based on the article, Steel Wire Ropes for Traction Elevators: Part 3, published in the September 2009 issue and counts as 1 Contact Hour (0.1 CEU) towards recertification. Most courses are approved by NAEC for CET/CATand NAESAI for QEI and in the following states: Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Kentucky, Maryland, Mississippi, Missouri, Montana, Oklahoma, Pennsylvania, Vermont, Virginia, Washington, West Virginia, Wisconsin.

Learning Objectives - After reading this article, you should:

• Realize that ropes should be store dry, frost free, dust free and protected against condensate
• Understand that opposite bending, horizontally running, lateral deflection and uneven tension levels reduce the service life of elevator ropes
• Learn that wire ropes settle after installation and, in so doing, do not have a constant elasticity modulus
• Realize that elevator ropes should be re-lubricated after a certain number of journeys
• Understand that elevator ropes are discarded due to wire breakage, wear, diameter reduction or corrosion
• Learn that when changing the elevator ropes, the groove profiles of unhardened traction sheaves should always be remeasured

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