SIST EN 12312-8:2018
(Main)Aircraft ground support equipment - Specific requirements - Part 8: Maintenance or service stairs and platforms
Aircraft ground support equipment - Specific requirements - Part 8: Maintenance or service stairs and platforms
1.1 General
This European Standard specifies the technical requirements to minimize the hazards listed in Clause 4 which can arise during the commissioning, the operation and the maintenance of maintenance stairs and platforms when used as intended, including misuse reasonably foreseeable by the manufacturer, when carried out in accordance with the specifications given by the manufacturer or his authorized representative. It also takes into account some requirements recognized as essential by authorities, aircraft and ground support equipment (GSE) manufacturers as well as airlines and handling agencies.
These machines are designed to be used as aircraft ground support equipment with the intended use to serve aircraft in outdoor conditions on the apron. They may also be used indoors at hangars. The use of such equipment for operations not in conjunction with aircraft is not defined as intended use therein. Due to the good operational conditions on the apron, deviations from some clauses of EN 280 were deemed acceptable.
This European Standard applies to:
a) self-propelled fixed or adjustable maintenance stairs and elevating platforms;
b) towable maintenance stairs and platforms equipped with powered means, e.g. for height adjustment, stabilizers,
designed for aircraft maintenance purposes including access to the aircraft.
NOTE 1 Powered will be also understood as manual effort stored in springs or hydraulic accumulators, etc., the dangerous action of which can be produced or can continue after the manual effort has ceased or directly applied manual effort for lifting or lowering loads.
NOTE 2 Those clauses of this standard that can apply may also be used as a guideline for the design of towable maintenance stairs and platforms without powered means.
This European Standard does not apply to:
c) maintenance docks either fixed to the ground or moveable only for docking procedure.
d) ground support equipment specifically intended, built and equipped with a fluid system for aircraft de-icing and anti-icing (see EN 12312 6).
NOTE 3 This does not prevent aircraft de-icers meeting the requirements of EN 12312–6 from being used as a means of access for aircraft maintenance, e.g. windshield cleaning, etc.
e) mobile elevating work platforms (MEWP) used at the airports for purposes other than aircraft maintenance, e.g. buildings and facilities (see EN 280).
This standard does not establish requirements for hazards caused by noise and vibration.
NOTE 4 EN 1915–3 and EN 1915–4 provide the general GSE vibration and noise requirements.
This European Standard does not deal with hazards in respect to a standard automotive chassis and from other vehicles on the apron.
This part of EN 12312 is not applicable to maintenance stairs and platforms which are manufactured before the date of publication of this standard by CEN.
This part of EN 12312 when used in conjunction with EN 1915 1, EN 1915 2, EN 1915 3 and EN 1915 4 provides the requirements for maintenance stairs and platforms.
1.2 Classification
For the purposes of this European Standard, Mobile elevating work platforms (MEWPs) to be used for aircraft maintenance access are divided into two main groups A and B:
a) Group A: MEWPs where the vertical projection of the centre of the platform area is always inside the tipping lines.
NOTE See 5.2 hereafter for requirements applying to Group A MEWPs.
b) Group B: MEWPs where the vertical projection of the centre of the platform area may be outside the tipping lines.
NOTE See 5.3 hereafter for requirements applying to Group B MEWPs.
c) In addition, Group C consists of maintenance access stairs, where persons are not elevated by the machine but climb a flight of steps.
NOTE See 5.4 hereafter for requirements applying to Group C maintenance stairs.
Relating to travelling, MEWPs are divided into three types:
d) Type 1: Travelling is only allowed with the MEWP in its transport position;
Luftfahrt-Bodengeräte - Besondere Anforderungen - Teil 8: Wartungs- oder Servicetreppen und -bühnen
1.1 Allgemeines
Diese Europäische Norm legt die technischen Anforderungen zur Minimierung der in Abschnitt 4 aufgelisteten Gefährdungen fest, die bei Inbetriebnahme, Betrieb und Wartung von Wartungstreppen und bühnen bei vorgesehener Verwendung, einschließlich vom Hersteller vernünftigerweise vorhersehbarer Fehlanwendung auftreten können, wenn diese in Übereinstimmung mit den Anweisungen des Herstellers oder seines Beauftragten ausgeführt werden. Sie berücksichtigt auch einige Anforderungen, die von offiziellen Stellen, den Herstellern von Luftfahrzeugen und Bodengeräten (GSE, en: ground support equipment) sowie Luftverkehrs- und Abfertigungsgesellschaften als wesentlich erachtet wurden.
Diese Maschinen sind entsprechend konstruktiv ausgelegt, um als Luftfahrt-Bodengeräte mit der vorge¬sehenen Verwendung, das Luftfahrzeug im Freien auf dem Vorfeld zu bedienen, eingesetzt zu werden. Sie dürfen auch in Hangars verwendet werden. Die Verwendung dieser Geräte für Einsätze, die nicht im Zusammenhang mit dem Luftfahrzeug stehen, ist nicht als vorgesehene Verwendung festgelegt. Aufgrund der guten Betriebsbedingungen auf dem Vorfeld wurden Abweichungen von einigen Abschnitten von EN 280 als annehmbar erachtet.
Diese Europäische Norm gilt für:
a) selbstfahrende, feststehende oder einstellbare, Wartungstreppen und -hubbühnen;
b) schleppbare Wartungstreppen und -bühnen, die mit kraftbetriebenen Einrichtungen, z. B. zur Höhen-anpassung, Abstützung, ausgerüstet sind,
die für Wartungsarbeiten an Luftfahrzeugen einschließlich des Zugangs zum Luftfahrzeug bestimmt sind.
ANMERKUNG 1 Kraftbetrieben sollte auch verstanden werden als in Federn gespeicherte menschliche Arbeitskraft oder hydraulische Akkumulatoren usw., deren gefährliche Wirkung nicht zwangsläufig mit Einstellung der menschlichen Tätigkeit beendet ist, oder unmittelbar angewandte menschliche Arbeitskraft zum Heben oder Senken von Lasten.
ANMERKUNG 2 Zutreffende Abschnitte dieser Norm können auch als Richtlinie für die Gestaltung von schleppbaren Wartungstreppen und -bühnen ohne kraftbetätigte Einrichtungen dienen.
Diese Europäische Norm gilt nicht für:
c) Wartungsdocks, die fest installiert oder nur für den Andockvorgang beweglich sind.
d) Bodengeräte, die speziell vorgesehen sind, mit einem Flüssigkeitssystem für die Enteisung oder den Vereisungsschutz von Luftfahrzeugen gebaut und ausgerüstet zu werden, (siehe EN 12312-6).
ANMERKUNG 3 Das hindert nicht daran, dass Enteiser und Enteisungs-/Vereisungsschutzgeräte für Luftfahrzeuge, die die Anforderungen von EN 12312 6 erfüllen, als Mittel zum Zugang für Wartungsarbeiten am Luftfahrzeug eingesetzt werden, z. B. Reinigung der Windschutzscheiben usw.
e) fahrbare Hubarbeitsbühnen (FHAB), die an Flughäfen für andere Zwecke als die Wartung von Luftfahr¬zeugen verwendet werden, z. B. für Gebäude und Anlagen (siehe EN 280).
Diese Norm enthält keine Festlegungen für Gefährdungen, die durch Lärm und Vibration verursacht werden.
ANMERKUNG 4 EN 1915-3 und EN 1915-4 behandeln die allgemeinen Vibrations- und Lärmanforderungen an Bodengeräte (GSE).
Diese Europäische Norm behandelt keine Gefährdungen, die von einem Serienfahrgestell und von anderen Fahrzeugen auf dem Vorfeld ausgehen.
Dieser Teil von EN 12312 gilt nicht für Wartungstreppen und -bühnen, die vor der Veröffentlichung dieser Norm durch CEN hergestellt wurden.
Dieser Teil von EN 12312 stellt bei Anwendung in Verbindung mit EN 1915-1, EN 1915-2, EN 1915-3 und EN 1915-4 die Anforderungen an Wartungstreppen und bühnen bereit.
1.2 Klassifizierung
Für die Zwecke dieser Europäischen Norm werden fahrbare Hubarbeitsbühnen (FHAB), die für den Zugang zum Luftfahrzeug bei der Wartung verwendet werden, in die zwei Hauptgruppen A und B eingeteilt:
a) Gruppe A: FHAB, bei denen sich die senkrechte Projektion des Lastschwerpunktes der Plattform immer innerhalb der Kippkante befindet.
Matériel au sol pour aéronefs - Exigences particulières - Partie 8: Escabeaux et plate-formes de maintenance ou de service
Podporna oprema na tleh za letalski promet - Posebne zahteve - 8. del: Stopnice in odri za vzdrževalna dela in servisiranje
Ta evropski standard določa tehnične zahteve za zmanjšanje nevarnosti, navedenih v točki 4, do katerih lahko pride pri začetku uporabe, delovanju ter vzdrževanju stopnic in odrov za vzdrževalna dela ter pri namenski uporabi, vključno s pričakovano nepravilno uporabo, ki jo določi proizvajalec, ko jih v skladu s specifikacijami izvaja proizvajalec ali njegov zakoniti zastopnik. Upošteva tudi nekatere zahteve, ki jih vladni organi, proizvajalci letal in podporne opreme na tleh, letalske družbe in agencije za oskrbo letal priznavajo za bistvene.
Ti stroji so namenjeni za uporabo kot podporna oprema na tleh za letalski promet s predvideno uporabo za letala v zunanjih pogojih na letalski ploščadi. Lahko se uporabljajo tudi v zaprtih prostorih v hangarjih. Uporaba takšne opreme za postopke, ki niso v zvezi z letali, v tem dokumentu ni opredeljena kot predvidena uporaba. Zaradi dobrih obratovalnih pogojev na letalski ploščadi so bila odstopanja od nekaterih točk standarda EN 280 opredeljena kot sprejemljiva.
Ta evropski standard se uporablja za:
a) fiksne ali nastavljive stopnice za vzdrževalna dela in dvižne odre z lastnim pogonom;
b) vlečne stopnice in odre za vzdrževalna dela, ki so opremljeni s pogonsko enoto, na primer za višinsko prilagoditev, ali stabilizatorji
za namene vzdrževanja letala, vključno z dostopom do letala.
OPOMBA 1: Izraz »s pogonsko enoto« se razume tudi kot ročna sila, shranjena v vzmeteh ali hidravličnih akumulatorjih itd., katerih nevarno proizvajanje ali nadaljevanje delovanja je mogoče še po prenehanju ročnega proizvajanja sile, ali neposredno uveljavljena ročna sila za dvigovanje ali spuščanje bremen.
OPOMBA 2: Primerne točke tega standarda je mogoče uporabiti tudi kot smernice za projektiranje vlečenih stopnic brez pogonske enote.
Ta evropski standard se ne uporablja za:
c) priključke za vzdrževanje, ki so pritrjeni na tla ali so premični le za namene priključitve;
d) podporno opremo na tleh, ki je posebej predvidena, izdelana in opremljena s sistemom s tekočino za odstranjevanje/preprečevanje nastanka ledu na letalu (glej EN 12312 6);
OPOMBA 3: To ne preprečuje uporabe sistemov za odstranjevanje ledu, ki izpolnjujejo zahteve standarda EN 12312-6, kot sredstva za dostop pri vzdrževanju letala, na primer za čiščenje vetrobranskega stekla itd.
e) mobilne dvižne delovne platforme (MEWP), ki se uporabljajo na letališčih za namene, ki niso vzdrževanje letal, npr. stavbe in naprave (glej EN 280).
Ta standard ne postavlja zahtev za nevarnosti, ki jih povzročajo hrup in vibracije.
OPOMBA 4: Standarda EN 1915-3 in EN 1915-4 določata splošne zahteve glede hrupa in vibracij pri podporni opremi na tleh.
Ta evropski standard ne obravnava nevarnosti v zvezi z standardno avtomobilsko šasijo in drugimi vozili na letališki ploščadi.
Ta del standarda EN 12312 se ne uporablja za stopnice in odre za vzdrževalna dela, izdelane, preden je CEN objavil ta standard.
Ta del standarda EN 12312 skupaj z deli EN 19151, EN 19152, EN 19153 in EN 19154 določa zahteve za stopnice in odre za vzdrževalna dela.
1.2 Klasifikacija
Za namene tega evropskega standarda so premične dvižne delovne ploščadi (MEWP), ki se uporabljajo za dostop pri vzdrževanju letala, razdeljene v dve glavni skupini (A in B):
a) Skupina A: premične dvižne delovne ploščadi, pri katerih je navpična projekcija središča ploščadi vedno znotraj zunanjih linij.
OPOMBA: Za zahteve glede premičnih dvižnih delovnih ploščadi skupine A glej točko 5.2 v tem dokumentu.
b) Skupina B: premične dvižne delovne ploščadi, pri katerih je navpična projekcija središča ploščadi lahko zunaj zunanjih linij.
OPOMBA: Za zahteve glede premičnih dvižnih delovnih ploščadi skupine B glej točko 5.3 v tem dokumentu.
c) Dodatna skupina C zajema dostopne stopnice za vzdrževalna dela, pri katerih osebe ne dviga stroj, temveč morajo te same preplezati določen sklop stopnic.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Podporna oprema na tleh za letalski promet - Posebne zahteve - 8. del: Stopnice in odri za vzdrževalna dela in servisiranjeLuftfahrt-Bodengeräte - Besondere Anforderungen - Teil 8: Wartungs- oder Servicetreppen und -bühnenMatériel au sol pour aéronefs - Exigences particulières - Partie 8: Escabeaux et plate-formes de maintenance ou de serviceAircraft ground support equipment - Specific requirements - Part 8: Maintenance or service stairs and platforms49.100Oprema za servis in vzdrževanje na tlehGround service and maintenance equipmentICS:Ta slovenski standard je istoveten z:EN 12312-8:2018SIST EN 12312-8:2018en,fr,de01-november-2018SIST EN 12312-8:2018SLOVENSKI
STANDARDSIST EN 12312-8:2005+A1:20091DGRPHãþD
SIST EN 12312-8:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12312-8
August
t r s z ICS
v {ä s r r Supersedes EN
s t u s tæ zã t r r w ªA sã t r r {English Version
Aircraft ground support equipment æ Specific requirements æ Part
zã Maintenance or service stairs and platforms Matériel au sol pour aéronefs æ Exigences particulières æ Partie
zã Escabeaux et plateæformes de maintenance ou de service
LuftfahrtæBodengeräte æ Besondere Anforderungen æ Teil
zã Wartungsæ oder Servicetreppen und æbühnen This European Standard was approved by CEN on
t u April
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t u s tæ zã t r s z ESIST EN 12312-8:2018
EN 12312-8:2018 (E) 2 Contents Page European foreword . 3 Introduction . 5 1 Scope . 6 1.1 General . 6 1.2 Classification . 7 2 Normative references . 7 3 Terms and definitions . 8 4 List of hazards . 10 5 Safety requirements and/or measures . 10 5.1 General requirements . 10 5.2 Group A maintenance platforms. 13 5.3 Group B maintenance platforms. 15 5.4 Group C maintenance or service stairs . 17 5.5 Auxiliary means for powered maintenance or service stairs and platforms . 18 6 Information for use . 18 6.1 Marking . 18 6.2 Additional marking . 18 6.3 Warnings . 19 6.4 Instructions . 19 7 Verification of requirements . 19 Annex A (normative)
List of Hazards . 22 Annex B (normative)
Additional stair on maintenance platforms . 25 Annex C (informative)
Loading control . 26 C.1 Demonstration of the absence of risk of overloading/overturning . 26 C.1.1 General . 26 C.1.2 Group A . 26 C.1.3 Group B . 26 Annex ZA (informative)
Relationship between this European Standard and the essential requirements of EU Directive 2006/42/EC aimed to be covered . 27 Bibliography . 28
SIST EN 12312-8:2018
EN 12312-8:2018 (E) 3 European foreword This document (EN 12312-8:2018) has been prepared by Technical Committee CEN/TC 274 “Aircraft ground support equipment”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest February 2019, and conflicting national standards shall be withdrawn at the latest by February 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12312-8:2005+A1:2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2006/42/EC on machinery. For relationship with EU Directive 2006/42/EC on machinery, see informative Annex ZA, which is an integral part of this document. EN 12312, Aircraft ground support equipment — Specific requirements, consists of the following parts: — Part 1: Passenger stairs; — Part 2: Catering vehicles; — Part 3: Conveyor belt vehicles; — Part 4: Passenger boarding bridges; — Part 5: Aircraft fuelling equipment; — Part 6: Deicers and deicing equipment; — Part 7: Aircraft movement equipment; — Part 8: Maintenance or service stairs and platforms (the present document); — Part 9: Container/Pallet loaders; — Part 10: Container/Pallet transfer transporters; — Part 11: Container/Pallet dollies and loose load trailers; — Part 12: Potable water service equipment; — Part 13: Lavatory service equipment; — Part 14: Disabled/incapacitated passenger boarding vehicles; — Part 15: Baggage and equipment tractors; SIST EN 12312-8:2018
EN 12312-8:2018 (E) 4 — Part 16: Air start equipment; — Part 17: Air conditioning equipment; — Part 18: Oxygen or Nitrogen units; — Part 19: Aircraft jacks, axle jacks and hydraulic tail stanchions; — Part 20: Electrical ground power units. The main technical changes compared to EN 12312-8:2005+A1:2009 are the following: a) Amendment A1:2009 was incorporated; b) change of title to include “service stairs”; c) the Scope was updated and contains now a classification; d) Clause 2, Normative references was updated; e) the terms and definitions were updated, with 3.1 maintenance stair being deleted; f) List of hazards was moved to normative Annex A; g) Clause 5, Safety requirements and/or measures was completely revised; h) Clause 6, Information for use was updated; i) Clause 7, Verification of requirements was completely revised; j) Informative Annex A, Examples of typical maintenance stairs and platforms, was deleted and replaced by normative Annex A, List of hazards; k) Normative Annex B, Additional stair on maintenance platform was added; l) Informative Annex C, Loading control was added; m) Annex ZA referring to the Machinery Directive 98/37/EC was replaced by Annex ZA referring to the new Machinery Directive 2006/42/EC; n) the Bibliography was updated. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12312-8:2018
EN 12312-8:2018 (E) 5 Introduction This European Standard specifies health and safety requirements, as well as some functional and performance requirements for maintenance stairs and platforms including a built-in source of power (see Scope, Clause 1) intended for maintenance purposes on all aircraft types commonly in service in civil air transport. The minimum essential criteria are considered to be of primary importance in providing safe, serviceable, economical and practical maintenance or service stairs and platforms. Deviations should occur only after careful consideration, extensive testing, risk assessment and thorough service evaluation have shown alternative methods or conditions to be satisfactory. Such deviations are outside the scope of this standard and a manufacturer should be able to demonstrate an equivalent level of protection. This document is a type-C standard as stated in EN ISO 12100. This document is of relevance, in particular, for the following stakeholder groups representing the market players with regard to machinery safety: — machine manufacturers (small, medium and large enterprises); — health and safety bodies (regulators, accident prevention organizations, market surveillance etc.) Others can be affected by the level of machinery safety achieved with the means of the document by the above-mentioned stakeholder groups: — machine users/employers (small, medium and large enterprises); — machine users/employees (e.g. trade unions, organizations for people with special needs); — service providers, e.g. for maintenance (small, medium and large enterprises); — consumers (in case of machinery intended for use by consumers). The above-mentioned stakeholder groups have been given the possibility to participate at the drafting process of this document. The machinery concerned and the extent to which hazards, hazardous situations or hazardous events are covered are indicated in the Scope of this document. When requirements of this type-C standard are different from those which are stated in type-A or type-B standards, the requirements of this type-C standard take precedence over the requirements of the other standards for machines that have been designed and built according to the requirements of this type-C standard. Deviations from requirements do not fall within the presumption of conformity given by the standard. SIST EN 12312-8:2018
EN 12312-8:2018 (E) 6 1 Scope 1.1 General This document specifies the technical requirements to minimize the hazards listed in Clause 4 which can arise during the commissioning, the operation and the maintenance of maintenance or service stairs and platforms when used as intended, including misuse reasonably foreseeable by the manufacturer, when carried out in accordance with the specifications given by the manufacturer or his authorized representative. It also takes into account some requirements recognized as essential by authorities, aircraft and ground support equipment (GSE) manufacturers as well as airlines and handling agencies. These machines are designed to be used as aircraft ground support equipment with the intended use to serve aircraft in outdoor conditions on the apron. They can also be used indoors at hangars. The use of such equipment for operations not in conjunction with aircraft is not defined as intended use therein. Due to the good operational conditions on the apron, deviations from some clauses of EN 280 were deemed acceptable. This European Standard applies to: a) self-propelled fixed or adjustable maintenance or service stairs and elevating platforms; b) towable maintenance or service stairs and platforms equipped with powered means, e.g. for height adjustment, stabilizers; designed for aircraft maintenance or service purposes including access to the aircraft. NOTE 1 Powered will be also understood as manual effort stored in springs or hydraulic accumulators, etc., the dangerous action of which can be produced or can continue after the manual effort has ceased or directly applied manual effort for lifting or lowering loads. NOTE 2 Those clauses of this standard that can apply can also be used as a guideline for the design of towable maintenance or service stairs and platforms without powered means. This European Standard does not apply to: c) maintenance docks either fixed to the ground or moveable only for docking procedure; d) ground support equipment specifically intended, built and equipped with a fluid system for aircraft de-icing and anti-icing (see EN 12312-6); NOTE 3 This does not prevent aircraft de-icers meeting the requirements of EN 12312-6 from being used as a means of access for aircraft maintenance, e.g. windshield cleaning, etc. e) mobile elevating work platforms (MEWP) used at the airports for purposes other than aircraft maintenance, e.g. buildings and facilities (see EN 280). No extra requirements on noise and vibration are provided other than those given in EN 1915-3 and EN 1915-4. NOTE 4 EN 1915-3 and EN 1915-4 provide the general GSE vibration and noise requirements. This European Standard does not deal with hazards in respect to a standard automotive chassis and from other vehicles on the apron. This part of EN 12312 is not applicable to maintenance or service stairs and platforms which are manufactured before the date of publication of this standard by CEN. SIST EN 12312-8:2018
EN 12312-8:2018 (E) 7 This part of EN 12312 when used in conjunction with EN 1915-1, EN 1915-2, EN 1915-3 and EN 1915-4 provides the requirements for maintenance or service stairs and platforms. 1.2 Classification For the purposes of this document, mobile elevating work platforms (MEWPs) used for aircraft maintenance access are divided into two main groups A and B. In addition, group C is considered as described in c) hereafter: a) Group A: MEWPs where the vertical projection of the centre of the platform area is always inside the tipping lines. NOTE 1 See 5.2 hereafter for the specific requirements applying to Group A MEWPs. b) Group B: MEWPs where the vertical projection of the centre of the platform area may be outside the tipping lines. NOTE 2 See 5.3 hereafter for the specific requirements applying to Group B MEWPs. c) Group C consists of maintenance or service access stairs, where persons are not elevated by the machine but climb a flight of steps. NOTE 3 See 5.4 hereafter for the specific requirements applying to Group C maintenance or service stairs. Relating to travelling, MEWPs are divided into three types: 1) Type 1: Travelling is only allowed with the MEWP in its stowed position; 2) Type 2: Travelling with raised work platform is controlled from a point of control on the chassis; 3) Type 3: Travelling with raised work platform is controlled from a point of control on the work platform. NOTE 4 Types 2 and 3 can be combined. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 280:2013+A1:2015, Mobile elevating work platforms - Design calculations - Stability criteria - Construction - Safety - Examinations and tests EN 795:2012, Personal fall protection equipment - Anchor devices EN 1175-1, Safety of industrial trucks — Electrical requirements — Part 1: General requirements for battery powered trucks EN 1837, Safety of machinery — Integral lighting of machines EN 1915-1:2013, Aircraft ground support equipment - General requirements - Part 1: Basic safety requirements EN 1915-2:2001+A1:2009, Aircraft ground support equipment - General requirements - Part 2: Stability and strength requirements, calculations and test methods SIST EN 12312-8:2018
EN 12312-8:2018 (E) 8 EN 1915-3, Aircraft ground support equipment — General requirements — Part 3: Vibration measurement methods and reduction EN 1915-4, Aircraft ground support equipment — General requirements — Part 4: Noise measurement methods and reduction EN 12312-1:2013, Aircraft ground support equipment - Specific requirements - Part 1: Passenger stairs EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13849-1:2015, Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2015) EN ISO 13850:2015, Safety of machinery - Emergency stop function - Principles for design (ISO 13850:2015) ISO 11228-1, Ergonomics — Manual handling — Part 1: Lifting and carrying DIN 51130:2014, Testing of floor coverings — Determination of the anti-slip property — Workrooms and fields of activities with slip danger — Walking method — Ramp test 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010, EN 1915-1:2013 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 maintenance platform mobile elevating work platform (MEWP) designed for: — the transport of persons and tools to reach and/or access to elevated parts of the aircraft; — carrying out maintenance work on aircraft at the airport 3.1.1 mobile elevating work platform MEWP mobile machine intended to elevate persons to working positions for purposes of aircraft maintenance access at airports 3.1.2 group A MWEPs on which the vertical projection of the centre of the platform area, in all platform configurations at the maximum inclination, is always inside the tipping lines Note 1 to entry: See ISO 16368. SIST EN 12312-8:2018
EN 12312-8:2018 (E) 9 3.1.3 group B MWEPs on which the vertical projection of the centre of the platform area, in all platform configurations at the maximum inclination, can be outside the tipping lines Note 1 to entry: See ISO 16368. 3.1.4 type 1 MEWPs for which travelling is only allowed when in the stowed position 3.1.5 type 2 MEWPs for which travelling in the elevated position is controlled from a point on the chassis 3.1.6 type 3 MEWPs for which travelling in the elevated position is controlled from a point on the work platform 3.2 maintenance or service stair fixed or adjustable stair or steps designed for: — entering and leaving the aircraft for maintenance or service purposes; — reaching and/or access to elevated parts of the aircraft; — carrying out maintenance or service work on aircraft 3.2.1 group C maintenance or service stairs or steps where persons are not elevated by the machine but climb a flight of steps 3.3 maintenance dock installed assembly, either fixed to the ground or moveable only for the docking procedure, designed for: — reaching elevated parts of the aircraft; — carrying out maintenance work on defined aircraft types 3.4 stair flight series of steps between ground level and platform or between two platforms 3.5 riser height (R) distance between the surface of the tread of one step and the surface of a step above or below when measured perpendicularly between the tread surfaces 3.6 tread depth (T) distance from one step nosing to the adjacent step nosing when measured parallel to the tread surface SIST EN 12312-8:2018
EN 12312-8:2018 (E) 10 3.7 step width maximum usable width measured along the nose of the step 3.8 handrail height distance to the top surface of the handrail as measured at the nose of the step or platform and perpendicular to the tread surface 3.9 incline angle of stair flight to a horizontal plane, measured across the noses of the steps 3.10 inclination angle of platform and steps to a horizontal plane, measured at a right angle to the noses of the steps 4 List of hazards The list of risks and hazards (given at Annex A) is based on EN ISO 12100:2010 and contains the hazards and hazardous situations, as far as they are dealt with in this European Standard, identified by risk assessment as significant for maintenance or service stairs and platforms and which require action to eliminate or reduce risks. Not covered are hazards due to the traffic and repair. 5 Safety requirements and/or measures 5.1 General requirements 5.1.1 The following general requirements are applicable to maintenance or service stairs and platforms of all groups and types, in addition to the specific requirements in 5.2 for group A platforms, 5.3 for group B platforms, and 5.4 for group C maintenance or service stairs. Machinery shall comply with the safety requirements and/or protective/risk reduction measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for relevant but not significant hazards which are not dealt with by this document. 5.1.2 Installation or use on the platform of powered lifting means to handle aircraft spare parts or other external loads shall not be allowed. See 6.4 for instructions. 5.1.3 The following loads, forces and speeds shall be taken into account as minimum for the strengths and stability calculations: a) Rated load The rated load capacity shall not be less than: 1) 80 kg per person; 2) The mass of each person is assumed to act as a point load on the work platform and any platform extension at a horizontal distance of 0,1 m from the upper inside edge of the top rail. The distance between the point loads shall be 0,5 m; 3) 40 kg minimum mass of tools, and SIST EN 12312-8:2018
EN 12312-8:2018 (E) 11 4) 25 kg minimum per person, as a reference value specified in ISO 11228-1, to account for the mass of the heaviest aircraft spare part to be handled from the platform. NOTE 1 As a result, the mass of aircraft spare parts to be supported by the equipment will be limited to what each person is allowed to handle, unless outer ancillary lifting means not applying a load to the platform (e.g. “bootstrap”) are provided e.g. as part of the aircraft tooling. The mass of equipment is assumed to act as an evenly distributed load on 25 % of the floor of the work platform. If the resulting pressure of this load exceeds 3 000 N/m2 the value of 25 % may be increased to a value resulting in a pressure of 3 000 N/m2. b) Wind loads that are generated at a minimum wind speed of 20,6 m/s (40 kn). NOTE 2 Where required according to prevailing conditions at the airport of use, the wind speed used for stability calculation may need to be higher than 20,6 m/s (40 knots); see EN 1915-1:2013, Introduction, f) - negotiation. c) The snow load shall be stated by the manufacturer. The snow load is depending on the geographical area of use of the MEWP and should be agreed between manufacturer and user (see EN 1915-1:2013, Introduction, f) - negotiation). For maintenance platforms and stairs intended only for indoor use, the strengths and stability calculations may be carried out without regard to wind and snow loads. In this case, the restriction of use shall be prominently marked on all sides of the equipment (see 6.2). d) A manual force of 400 N for each of the maximum number of persons allowed on the platform, applied at a height of 1,1 m above the work floor of the platform. e) All these loads mentioned in a), b), c) and d) are assumed to be applied in the positions giving the most severe results. The above rated loads refer to the maximum people and materials loads that is allowed (according to intended use as stated by the manufacturer) to be placed on the platform including any extension. f) Maximum travel speed in raised position: For platforms of type 2 and 3 the following maximum travelling speeds shall not be exceeded whenever the platform is in a raised position: 1) 1,5 m/s (6 km/h) for vehicle mounted MEWPs when using the travelling controls inside the cab; 2) 0,7 m/s (2,5 km/h) for all other self-propelled MEWPs of types 2 and 3. The control system of speed limit shall achieve Performance Level “c” according to EN ISO 13849-1:2015. g) Prevention of jerking and oscillations: For both platform movements and, in the case of type 2 or 3 platforms, travelling in the raised position, utmost care shall be brought during design and construction to ensuring smooth and jerk free operation and preventing or damping any platform oscillations in any direction resulting from movement start or stop, which can result in a tripping hazard for users of the platform as well as a risk of impact with the aircraft. SIST EN 12312-8:2018
EN 12312-8:2018 (E) 12 Under any of the following circumstances: 1) start or stop of any platform or extension movement, or 2) starting travel of type 2 or 3 platforms in the raised position, or 3) stopping travel of type 2 or 3 platforms in the raised position under maximum available braking from the maximum allowable speed in e) above. The total amplitude of movement or oscillation measured at any position on platform handrails under all of the above conditions and most unfavourable speeds, accelerations or decelerations shall not exceed 50 mm. NOTE 3 The above mentioned requirements take into account the frequency and high cost of aircraft impact incidents. Means to achieve jerk free operation and control any oscillations can include e.g. two speed controlled movements (starting/stopping at lower speed), or proportionally controlled movements. 5.1.4 Self-propelled maintenance or service stairs and platforms shall be equipped with driver accommodation meeting the requirements of EN 1915-1:2013, 5.2.2. This clause is not applicable for pedestrian controlled self-propelled maintenance or service stairs and platforms. 5.1.5 Parking brakes or equivalent devices of maintenance or service stairs and platforms shall be dimensioned so as to take into account the forces induced during work under intended use conditions in accordance with EN 1915-1:2013, 5.8.2. The parking brake shall hold the maintenance or service stair or platform on a slope of at least 7 %. 5.1.6 Lights and reflectors for traffic purposes shall be in accordance with EN 1915-1:2013, 5.11 with the exception that lights and reflectors for traffic purposes are not required on equipment intended only for indoor use. 5.1.7 Where working lights are provided they shall conform to EN 1837. The minimum luminous flux of lamps shall be 250 lm. 5.1.8 Where maintenance platforms are intended to be moved with persons on the platform, adequate safety means, e.g. seats with safety belts and/or fixing points for safety harnesses shall be provided. 5.1.9 Maintenance stairs shall be equipped with a work platform (see also 5.4). 5.1.10 Maintenance platforms shall be equipped with means for safe access to and from the platform in lowered position (see 5.2, 5.3 or 5.4 and EN 1915-1:2013, Annex D). 5.1.11 In all intended working positions step and platform inclination shall not exceed ± 3° (5 %) when the maintenance or service stair or platform rests on a horizontal plane. 5.1.12 The materi
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