EN 13796-2-2017 pdf download.Safety requirements for cableway installations designed to carry persons – Carriers – Part 2: Slipping resistance tests for grips.
This EN 13796-2 specifies the safety requirements applicable to carriers for cableway installations designed to carry persons. It is applicable to the various types of installations and takes into account their environment.
This European Standard describes the requirements to be met when testing the slipping resistance of grips clamped
on the haulage or carrying hauling rope of carriers of monocable or bicable aerial ropeways with fixed or detachable grips, covered by EN 13796-1;
— on the towing rope of ski-tows with fixed grips, covered by EN 13796-1. It does not apply to installations for the transportation of goods nor to lifts.
2 Normative references
The following documents, in whole or in part, are referenced in the normal manner for this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document applies (including any amendments).
EN 1907. Safety requirements for cable way installations designed to carry persons — Terminology
EN 13796-1, Safety requirements for cableway installations designed to carry persons — Carriers — Part 1:
Grips, carrier trucks, on-board brakes, cabins, chairs, carriages, maintenance carriers, tow-hangers
EN ISO/lEG 17025, General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given En EN 1907 and EN 13796-1 apply.
4 Symbols and abbreviations
F ab Slipping resistance torce determined experimentally in the laboratory (kN)
Fmax Maximum slipping resistance force (kN)
Fgtot Calculated slipping resistance force (kN)
The corresponding risk factors and safety measures to be taken into consideration in this standard appear in
EN 13796-1.
It is recommended that the tests are carried out by a qualified test laboratory that respects the provisions set out in EN ISO/IEC 17025.
NOTE This does not mean that the test laboratory requires the approval or authorisation of third parties. The test will make it possible to validate the field of use of the grip proposed by the manufacturer.
6 Parts to be tested
The geometry and the materials of the test piece shall be identical to the series-produced components. Their production methods shall be equivalent. In particular, the test piece shall be galvanized if it is planned that the series-produced component will be.
7 Information to be provided by the manufacturer
The manufacturer shall supply the following information and documents to the test laboratory:
general description of the grip;
production drawings of the grip;
– descriptions and explanations required to understand the above-mentioned drawings and the mode of operation of the grip:
field of use of the grip, inc
9 Test requirements
The test consists of subjecting a grip clamped on a rope to an increasing tensile force until it starts to slip, while recording the change in its resistance to slipping.
whatever the field of use of the grip, the test shall be carried out on a parallel-lay galvanized rope. If the field of use of the grip specifies several nominal machining diameters for the jaws corresponding to as many nominal rope diameters, the test shall be carried out only on the largest diameter:
the rope shall be subjected to a tensile force corresponding to 1/6 of its breaking load:
the grip shall be attached according to the conditions specified by the manufacturer;
the equipment used to transmit the force shall allow controlled and gradual application;
– the equipment for measuring the slipping resistance force shall enable a continuous permanent record to be made of the applied force as a function of time:
— the tensile force on the grip shall be applied so that the resultant of the slipping force coincides with the axis of the rope;
the force on the grip shall be applied pogressiveIy until slipping starts and shall be maintained to cause a minimum slippage of at least 5 mm;
— the test shall be carried out 10 times. The total slipping length I shall be at least:EN 13796-2-2017 pdf download.
EN 13796-2-2017 pdf download
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