What is BS EN 12929-2 -Additional requirements for reversible bicable aerial ropeways about?
BS EN 12929 discusses cableway installations designed to carry persons. BS EN 12929-2 is the second part of the multi-part series that outlines additional safety requirements for bicable reversible aerial ropeways without carrier truck brakes to ensure safety.
BS EN 12929-2 applies to the various types of cableway installations and considers their environment.
BS EN 12929-2 details:
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Additional requirements relating to the integrity of the haul rope loop
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Additional requirements intended to prevent specific operational incidents
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Requirements concerning the attachment of the carriers to the haul rope
Note: BS EN 12929-2 does not apply to cableway installations for transportation of goods nor to lifts.
Who is BS EN 12929-2 - Additional requirements for reversible bicable aerial ropeways for?
BS EN 12929-2 on additional requirements for reversible bicable aerial ropeways is useful for:
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Installers of reversible bicable aerial ropeways without carrier truck brakes
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Maintenance staff for cableway designed to carry persons
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Test centres
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Regulatory authorities
Why should you use BS EN 12929-2 - Additional requirements for reversible bicable aerial ropeways?
A cableway designed to carry persons is a system for hoisting and hauling, consisting of a cable suspended between two towers, on which travels a carriage from which bucket is suspended.
Reversible bicable aerial ropeways refer to an installation of passengers in carriers hung to one or more cables such as chairlifts, gondola lifts, funitels, and other aerial ropeways (reversible or pulsed operation).
BS EN 12929-2 guideline assists you with general requirements, safety principles, hazard scenarios, safety measures, measures to ensure the integrity of the haul rope loop, measures intended to prevent incidents during operation, and requirements relating to the attachment of the carrier to the haul rope for reversible bicable aerial ropeways without carrier truck brakes.
This supports you with additional requirements on reversible bicable aerial ropeways without carrier truck brakes that assists in ensuring safety.
What’s changed since the last update?
BS EN 12929-2:2015 supersedes EN 12929-2:2004, which is withdrawn. BS EN 12929-2:2015 has some technical changes compared to EN 12929-2:2004. These include:
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In 6.3 the requirement has been removed that stipulates that for the tension safety factor the haul rope loop shall comply with 1,2 times the value of the tension safety factor for haul ropes of bicable reversible aerial ropeways with carrier track brakes under EN 12930, as the value established from this was only slightly above 4,5
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In 6.4 b) 1), the value for the smallest permissible tension safety factor has been adapted to comply with the state of the art
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In 6.6 the requirement has been removed that stipulates that the device shall be available for the MRT inspection of the installation, as this is not safety-related
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The previous Clauses 6.13, 6.14, 6.17, 6.20, 6.22, 6.27, 7.3, 7.7, 7.8, 7.9 and 8.6 have been deleted without replacement, as there were no safety-relevant justifications for supplementary requirements concerning bicable aerial ropeway with carrier track brakes
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In 6.13, the alternative has been removed regarding taking into consideration the executed transverse sway options