Method and an arrangement in rope condition monitoring of an elevator

• Main Authors: MIKKO PURANEN, RIKU LAMPINEN, ANTTI SAARELAINEN
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2014
• Subjects: CABLES OTHER THAN ELECTRIC; ELEVATORS; ESCALATORS OR MOVING WALKWAYS; HAULING; HOISTING; LIFTING; PERFORMING OPERATIONS; ROPES; ROPES OR CABLES IN GENERAL; TEXTILES; TRANSPORTING

The invention relates to a method in rope condition monitoring of an elevator, in which method at least the following steps are performed: electrical resistance between a first point (R') and a second point (R") of elevator suspension and/or transmission ropes (R) is measured first time, a threshold value is determined based on the measurement, the elevator is used for transporting passengers and/or goods, electrical resistance between the first point (R') and the second point (R") of said suspension and/or transmission ropes (R) is measured second time, and results of said second time measurement are compared with said threshold value, and if said second time measurement meets said threshold value, predetermined actions are carried out. The first point (R') and the second point (R") are points of the non-metallic load bearing parts of said suspension and/or transmission ropes (R), or electrically connected points of the non-metallic load bearing parts of said suspension and/or transmission ropes (R). The inv