Michigan Administrative Code › Department - Labor and Economic Opportunity › MIOSHA › General Industry and Construction Safety and Occupational Health Standards › General Industry Safety Standards › Part 5 - POWERED PLATFORMS FOR BUILDING MAINTENANCE › POWERED PLATFORMS › Section R. 408.10562 - Intermittent stabilization systems

Current through Vol. 24-12, July 15, 2024
Rule 562.
(1)
						An intermittent stabilization system shall keep equipment in continuous contact
						with the building facade and shall prevent sudden horizontal movement of the
						platform. The system may be used together with continuous positive building
						guide systems that use tie-in guides on the same building if the requirements
						for each system are met.
(2) The
						maximum vertical interval between building anchors shall be 3 floors or 50 feet
						(15.3 m), whichever is less.
(3)
						Building anchors shall be located vertically so that attachments of the
						stabilizer ties will not cause the platform suspension ropes to angulate the
						platform horizontally across the face of the building. The anchors shall be
						positioned horizontally on the building face so as to be symmetrical about the
						platform suspension ropes.
(4)
						Building anchors shall be visible to employees and shall allow a stabilizer tie
						attachment for each of the platform suspension ropes at each vertical interval.
						If more than 2 suspension ropes are used on a platform, only the 2
						building-side suspension ropes at the platform ends shall require a stabilizer
						attachment.
(5) Building anchors
						that extend beyond the face of the building shall be free of sharp edges or
						points. Where cables, suspension wire ropes, and lifelines may be in contact
						with the building face, external building anchors shall not interfere with
						their handling or operation.
(6)
						The intermittent stabilization system building anchors and components shall be
						capable of sustaining, without failure, not less than 4 times the maximum
						anticipated load applied or transmitted to the components and anchors. If 2
						anchors share the wind load, the minimum design wind load for each anchor shall
						be 300 pounds (1334 n).
(7) The
						building anchors and stabilizer ties shall be capable of sustaining anticipated
						horizontal and vertical loads from winds specified for roof storage design
						which may act on the platform and wire ropes if the platform is stranded on a
						building face. If the building anchors have different spacing than the
						suspension wire rope or if the building requires different suspension spacings
						on 1 platform, 1 building anchor and stabilizer tie shall be capable of
						sustaining the wind loads.
(8) A
						powered platform shall be suspended by 2 or more cables. Where 2 cables are
						used, each employee on the work platform shall use a safety harness and lanyard
						that is attached to an individual lifeline. The lifeline shall be secured to
						the building structure and shall be independent of any cable and structures
						that support the powered platform.
(9) When normal voice communication cannot be
						understood, a powered platform shall be equipped with a 2-way voice
						communication system between the operator and persons who are stationed at a
						supervised location in the vicinity or within the building being serviced. The
						communication system shall be operative and shall be tended at all
						times.
(10) Where thrustouts are
						used in place of a roof car, they shall be anchored to the building structure
						with fasteners that are capable of sustaining the imposed load.