Presentation on theme: "Amendment 3 (A3) to EN 81-1 and EN 81-2"— Presentation transcript:
1 Amendment 3 (A3) to EN 81-1 and EN 81-2 Ian JonesIstanbul – 2011
2 Originally Planned for two separate amendments : Amendment 3 (A3) PlanOriginally Planned for two separate amendments :prA3 – Items to meet the needs of the 3rd Amendment to the machinery directive.prA4 – Improvements in the state of the art.
3 Problem Encountered Amendment 3 (A3) Plan prA3 originally to be published, then start work on prA4.This would have brought prA4 into the same time frame as the full revision of EN81-1/2 into EN81-20/50.Due to CEN rules it is not possible to work on an amendment to the standard whilst a revision is undertaken.Therefore prA3 and prA4 were merged, to be issued as a single amendment.
4 Machinery Directive changes Amendment 3 (A3) ChangesContent :Machinery Directive changesCaptive fixings for guards removed during regular maintenance not specifically described are added to the assumptions.Lifts with rated speeds of up to 0.15 m/s are removed from the scope.State of the art changesLevelling and re-levelling dimensions at floor levels are added.Control of movement with open doors is elaborated.
5 Amendment 3 (A3) Changes - Assumptions The introduction and list of assumptions has been amended to include :The fixing system of guards, which have to be removed during maintenance and inspection, remains attached to the guard or to the equipment, when the guard is removed.
6 Amendment 3 (A3) Changes - Scope The scope has been amended to exclude the following :– Lifts with rated speed ≤ 0.15 m/sTherefore any lifting equipment designed to travel at speeds less than 0.15 m/s is now excluded and classed as a machine, not a lift.
7 Amendment 3 (A3) Changes - Definitions Stopping accuracyvertical distance between car sill and landing sill at the moment when a car is stopped by the control system at its destination floor and the doors reach their fully open positionLevelling accuracyvertical distance between car sill and landing sill during loading or unloading of the carUnintended car movementa non-commanded movement of the car with doors open within the door zone away from the landing, excluding movements resulting from loading/unloading operation
8 Amendment 3 (A3) Changes – Stopping and levelling Normal stopping of the car at landings and levelling accuracy :The stopping accuracy of the car shall be ± 10 mm;A levelling accuracy of ± 20 mm shall be maintained. If, during e.g. loading and unloading phases, the value of 20 mm is exceeded, it shall be corrected.
9 Amendment 3 (A3) Changes – Uncontrolled Movement UCM ProtectionLifts shall be provided with a means to stop unintended car movement away from the landingwith the landing door not in the locked position and,the car door not in the closed position,Excludes failure of the suspension ropes and the traction sheave of the machine or flexible hoses, steel pipes or cylinder of a hydraulic lift.
10 Amendment 3 (A3) Changes – Uncontrolled Movement The stopping element of the means shall act:on the car, oron the counterweight, oron the rope system (suspension or compensating), oron the traction sheave (e.g. on the sheave directly or on the same shaft in the immediate vicinity of the sheave).on the hydraulic system (including the motor/pump in up direction)
11 Amendment 3 (A3) Changes – Uncontrolled Movement The means shall stop the car in a distance:not exceeding 1,20 m from the landing where the unintended car movement has been detected, andthe vertical distance between the landing sill and the lowest part of the car apron shall not exceed 200 mm, andthe free distance from car sill to landing door lintel, or from landing sill to car door lintel shall not be less than 1,00 m
12 Amendment 3 (A3) Changes – Uncontrolled Movement
13 Amendment 3 (A3) Changes – Uncontrolled Movement Characteristics:Must operate at all loads between full and empty.Must detect uncontrolled movement away from the floor at the end of the unlocking zone at the latest.Must stop the car with the equivalent deceleration to that of the normal safety gear
14 Amendment 3 (A3) Changes – Uncontrolled Movement
15 Amendment 3 (A3) Changes - Testing Annex D – Tests and Verifications:The following are added to the list of tests :Stopping of the car at landings and levelling accuracy (both directions and under all load conditions)Unintended car movement protection means (empty car up, loaded car down)
16 Amendment 3 (A3) Publication New standards are published as ;EN81-1: A3:2009EN81-2: A3:2009These documents are a fully consolidated text containing ;EN81 main text published 1998Corrigendum No.1 published 1999Amendment A1:2005Amendment A2:2004Amendment A3:2009
17 Amendment 3 (A3) Implementation Approved by National Mirror Committees88% positive vote against a requirement of 71%Publication by CENDate of availability (DAV) was 23rd December 2009This is the date CEN hand the documents to the National Committees for publicationDate of Withdrawal (of the conflicting national standards), DOWCEN agreed by resolution to extend the DOW to 18 months after DAV.Therefore the date of withdrawal of the old standard should be June 2011
18 Amendment 3 (A3) Implementation DOW of 18 months was allow manufactures to develop new products to meet the requirements of the standards. This is of particular importance with regard to stopping / levelling accuracy and protection from uncontrolled movement with open doors.Reference to A3 was published in the EU Official Journal (EUOJ) with the “date of cessation of presumption of conformity of superseded standard” based on DOW.Therefore the present EN81-1 & EN81-2 will remain harmonised and continue to meet the presumption of conformity to the Lifts Directive until June The A3 amendment is seen as improvement to the state of the art.The existing EN81-1 and EN81-2 standards will be formally withdrawn in June 2011.
19 Amendment 3 (A3) Implementation Due to some problems between the manufactures of the A3 devices and the capacity of the Notified Bodies to approve them, the Commission has agreed to a 6 more months to the date of Cessation of Presumption of Conformity to the existing EN81-1 and EN81-2.This will allow manufacturers to continue to use the existing standards and meet the requirements of the Lifts Directive until January 2012.CEN/TC10 has also published answers to a series of Frequently Asked Questions, issued by CEN/TC10/WG1. These are aimed at helping manufacturers to better understand the requirements for this new technology.
20 Thank you for listening ! Amendment 3 (A3)Thank you for listening !
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