EN 131-6:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lestve - 6. del: Teleskopske lestveLeitern - Teil 6: TeleskopleiternÉchelles - Partie 6 : Échelles téléscopiquesLadders - Part 6: Telescopic ladders97.145LestveLaddersICS:Ta slovenski standard je istoveten z:EN 131-6:2015SIST EN 131-6:2015en,fr,de01-maj-2015SIST EN 131-6:2015SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 131-6
March 2015 ICS 97.145 English Version
Ladders - Part 6: Telescopic ladders
Échelles - Partie 6: Échelles téléscopiques
Leitern - Teil 6: Teleskopleitern This European Standard was approved by CEN on 3 January 2015.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
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A-deviations . 20 B.1 Deviations from the Netherlands . 20 B.2 Deviations from Sweden . 21 Bibliography . 22
Figure 1 – Extension elements not covered by this part of EN 131 3.2 hinge-joint telescopic ladder ladder including one or more hinge-joint devices with at least one predetermined lockable position 3.3 rung/step section section of ladder that consists of one rung/step connected to two telescopic stiles 3.4 rung/step bracket part that attaches the rung/step to the stile 3.5 rung/step section locking mechanism mechanism that locks a rung/step section 3.6 locking indicator mechanism or part that indicates that one rung/step section or part of one rung/step section is locked/unlocked SIST EN 131-6:2015

See Figure 2. Note 2 to entry:
If the distance between the end of the stiles and the upper connection of the two stiles do fulfill the requirement of l3, as defined in EN 131-1:2007+A1:2011, 3.37, it should be considered as a rung/step (see Figure 3). Dimensions in millimetres
Figure 2 — Top bar
Figure 3 — Rung/step 3.9 protection against squeezing mechanism or part that minimizes the risk of squeezing when the ladder is shortened Note 1 to entry: For example brake system. 3.10 release function function which releases the locking mechanism 3.11 base section section starting from the lower end of the ladder SIST EN 131-6:2015

Protection against squeezing can be assured by a permanent braking function of the ladder or by a special stop or distance device. If a permanent breaking function is used a typical time for collapsing a section of 300 mm is 1,5 s if the movement is uniform. If only a distance device is used for protection against squeezing between the rung/steps this device shall be located at least 80 mm from the manufacturers recommended position of the user´s hands during collapse of the ladder. 6 Testing 6.1 General For all tests, unless otherwise stated in the particular test, the following tolerances apply: ± 1 mm for longitudinal measurements; ± 5 mm for the measurement of the distance between the supports and the overhanging length; ± 1° for the measurement of angles; ± 1 % for static forces and torque. Tests shall be performed at a temperature between 15° C and 25° C. Where the ascendable side cannot be determined by the construction of the product, or where it is a multiple part combination ladder, the ladder shall be tested twice regarding 6.3 and 6.4. Conduct strength test and bending test on one side then rotate the ladder 180° about the longitudinal axis and repeat 6.3 and 6.4. Inspect the ladder before testing to confirm condition and operation of all parts by fully extend the ladder. Perform drop test according to 6.2 as preconditioning for each ladder, with the exception of test block D (bottom stile end test) and F (feet pull test), see Annex A. 6.2 Drop test Place the extended ladder in vertical position. Let the ladder fall in the direction of use from vertical to horizontal position by its own weight. Repeat the test with ladder rotated 180° about the longitudinal axis. SIST EN 131-6:2015

Figure 4 — Strength and bending test 6.4 Bending test of the stiles Extend the ladder to its maximum length. The test shall be carried out on the complete ladder. In the case of combination ladders the test shall be carried out on the complete extended ladder. Sectional ladders shall be tested at full length with all permitted pieces. The test shall be carried out without supporting legs if not permanently fixed to the ladder. The ladder shall be placed horizontally on supports situated 200 mm from each end of the ladder. SIST EN 131-6:2015
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