Thermal Expansion; Installation - Harken Industrial R27 Manual De Instrucciones

INSTALLATION

Thermal expansion

Since the rail is made of an aluminium alloy Series 6000 (thermal expansion coefficient: 23x10-6m/°C), during
the design phase, it is necessary to evaluate the rail thermal expansion based on the length of the rail which may
occur when the temperature varies. It is the responsibility of the system designer (qualified engineer) to carefully
evaluate the thermal expansion which will be submitted to the system. The system designer must analyze
the relative coefficient of thermal expansion of rail and mounting material and decide on the appropriate method
of mounting, sealing fasteners, and gaps between rail sections.
As a general rule, leave a space between the end
of one rail segment and the next to allow for thermal
expansion.
Spacing of 3 mm (.118") is appropriate and will allow
the trolley assembly to roll smoothly over the gap. Use
the O-ring supplied with the IN1649 and IN1651 splice
links as a spacer tool to set the gap between the rails.
Be sure to follow mounting instructions for alignment
and fasteners at splice links. Joints must be supported
either side by a fastener 50 mm from rail end.
The R27 rail operating temperature range is -50°C to +80°C. For out-of-range applications, contact Harken
or Harken dealer.
INSTALLATION
The R27 rail must be installed by Harken dealer's authorized installers or by qualified professionals, trained to
design, install, certify and service the fall arrest system. For a list of HARKEN's authorized installers, see the
website www.harkenindustrial.com.
In order to evaluate the base material, the structural anchorages or the anchor/fixing correctly, take into account the
loads registered on the anchoring device during the dynamic and integrity tests indicated in the design-related chapter.
The installer carries the full responsibility for a proper and safe installation that is tested to meet all relevant
standards. Normally this would be verified by an independent safety engineer/surveyor
The correct installation must be suitably verified by a supervisor or by a safety officer through calculations or
tests. After completing the installation, the installer must issue the related documents required by reference
regulations and must fix and display near the system access point the sign indicating:
• name and contact info of the manufacturer
• name and contact info of the installing company
• system serial number
• type of fixing devices
• installation date
• maximum number of operators that can connect at the same time
• obligation to use the PPE
• notice to refer to the contents of the anchoring system booklet
14
Joints must be supperted either side
by a fastener 50 mm from rail end.
ENGLISH 24/07/20