Aircraft ground support equipment - Specific requirements - Part 4: Passenger boarding bridges

EN 12312-4 specifies the technical requirements to minimize the hazards listed in Clause 4 which can arise during the commissioning, operation and maintenance of passenger boarding bridges (PBBs) 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. This European Standard applies to: a) apron-drive bridges; b) fixed-head bridges (also referred to as nose-loaders) or pedestal bridges; c) suspended bridges, for embarking/disembarking of passengers. It is applicable from the interface with the terminal building, which can be movable, e.g. on two levels to separate arrival and departure level to the connection with the aircraft including fixed tunnels. This European Standard does not apply to: d) elevating lounges; e) passenger stairs; f) other form of aircraft access equipment; g) automatic PBB positioning. This European Standard does not establish requirements for hazards caused by noise and vibration. This part of EN 12312 is not applicable to PBBs which were 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 and EN 1915-4 provides the requirements for PBBs.

Luftfahrt-Bodengeräte - Besondere Anforderungen - Teil 4: Fluggastbrücken

Diese Europäische Norm legt die technischen Anforderungen zur Minimierung der in Abschnitt 4 aufgelisteten Gefährdungen fest, die bei Inbetriebnahme, Betrieb und Wartung von Fluggastbrücken (PBB) bei vorgesehener Verwendung einschließlich vom Hersteller vernünftigerweise vorhersehbarem Missbrauch auftreten können, wenn diese in Übereinstimmung mit den Anweisungen des Herstellers oder seines Bevoll-mächtigten ausgeführt werden. Sie berücksichtigt auch einige Anforderungen, die von offiziellen Stellen, Herstellern von Luftfahrzeugen und Bodengeräten (GSE, en. Ground Support Equipment) sowie Luftverkehrs- und Abfertigungsgesellschaften als wesentlich erachtet werden.
Diese Norm gilt für:
a)   Brücken mit Fahrwerk;
b)   Brücken mit festem Kopf (auch Noseloader genannt) oder Podestbrücken;
c)   frei hängende Brücken;
für das Ein  und Aussteigen von Fluggästen. Sie gilt ab der Verbindung mit dem Abfertigungsgebäude, die beweglich sein kann, z. B. auf zwei Ebenen, um die Ankunfts- und die Abflugsebene voneinander zu trennen, bis zur Verbindung mit dem Luftfahrzeug, einschließlich fester Tunnelverbindungen.
Diese Norm gilt nicht für:
a)   Lift Lounges;
b)   Fluggasttreppen;
c)   eine andere Bauart von Einrichtungen zum Einsteigen in Luftfahrzeuge;
d)   automatisches Positionieren der Fluggastbrücke.
Diese Norm enthält keine Anforderungen hinsichtlich der Gefährdungen, die durch Lärm und Vibration verursacht werden.
ANMERKUNG   EN 1915-3 und EN 1915-4 enthalten allgemeine Anforderungen hinsichtlich Vibration und Lärm von Luftfahrt-Bodengeräten.
Dieser Teil von EN 12312 gilt nicht für Fluggastbrücken, die vor der Veröffentlichung dieser Norm durch CEN hergestellt wurden.
Dieser Teil von EN 12312 legt Anforderungen an Fluggastbrücken fest, wenn er in Verbindung mit EN 1915 1, EN 1915 2 und EN 1915 4 angewendet wird.

Matériel au sol pour aéronefs - Exigences particulières - Partie 4: Passerelles passagers

La présente Norme Européenne spécifie les exigences techniques pour réduire les phénomènes dangereux énumérés à l’Article 4 qui peuvent survenir lors des opérations de mise en œuvre, d’exploitation et de maintenance des passerelles passagers lorsqu’elles sont réalisées conformément aux spécifications données par le fabricant ou son représentant légal. Elle tient également compte de certaines exigences reconnues comme essentielles par les autorités, les constructeurs d’aéronefs et de matériel au sol, ainsi que par les compagnies aériennes et les organismes d’assistance.
La présente norme s’applique aux éléments suivants :
a)   passerelles télescopiques ;
b)   passerelles à tête fixe ou passerelles sur pied ;
c)   passerelles suspendues,
pour l’embarquement et le débarquement des passagers. Elle est applicable depuis l’interface du bâtiment de l’aérogare qui peut être mobile, par exemple, sur deux niveaux de manière à séparer les niveaux arrivée et départ jusqu’au raccordement avec l’aéronef y compris les couloirs fixes.
La présente norme ne s’applique ni aux :
a)   autobus élévateurs ;
b)   escaliers passagers ;
c)   toute autre forme de matériel d’accès aux aéronefs ;
d)   positionnement automatique de la passerelle passagers.
La présente norme n’établit pas d’exigences concernant les phénomènes dangereux dus au bruit et aux vibrations.
NOTE   Les EN 1915-3 et EN 1915-4 fournissent les exigences générales sur le bruit et les vibrations des matériels au sol.
La présente partie de l’EN 12312 ne s’applique pas aux passerelles passagers fabriquées avant la date de publication de la présente norme par le CEN.
La présente partie de l’EN 12312 lorsqu’elle est utilisée conjointement avec les EN 1915-1, EN 1915-2, EN 1915-3 et l’EN 1915-4 fournit les exigences concernant les passerelles passagers.

Podporna oprema na tleh za letalski promet - Posebne zahteve - 4. del: Mostiči za vkrcanje na potniška letala

Standard EN 12312-4 določa tehnične zahteve za zmanjšanje nevarnosti, navedenih v točki 4, do katerih lahko pride pri začetku uporabe, delovanju in vzdrževanju mostičev za vkrcanje na potniška letala (PBB) pri nameravani uporabi, vključno z morebitno nepravilno uporabo, ki jo predvidi proizvajalec, ko se jih uporablja v skladu s specifikacijami, ki jih določi 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. Ta evropski standard velja za: a) mobilne mostiče; b) fiksne mostiče (mostiče za vkrcanje potnikov pri nosu letala); c) viseče mostiče za vkrcavanje/izkrcavanje potnikov. Velja za območje od stika z letališko zgradbo, ki je lahko premičen, npr. razdeljen na dve ravni, ki ločita prihode in odhode, do povezave z letalom, vključno s fiksnimi predori. Ta evropski standard ne velja za: d) dvignjene čakalnice; e) stopnice za potnike; f) druge oblike opreme za dostop do letala; g) sisteme za avtomatsko postavitev mostičev za vkrcanje na potniška letala. Ta evropski standard ne postavlja zahtev za nevarnosti, ki jih povzročajo hrup in vibracije. Ta del standarda EN 12312 se ne uporablja za mostiče za vkrcanje na potniška letala, izdelane, preden je CEN objavil ta standard. Ta del standarda EN 12312 skupaj s standardi EN 1915-1, EN 1915-2, in EN 1915-4 določa zahteve za mostiče za vkrcanje na potniška letala.

General Information

Status
Published
Public Enquiry End Date
24-Jun-2011
Publication Date
14-May-2014
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-May-2014
Due Date
10-Jul-2014
Completion Date
15-May-2014

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luftfahrt-Bodengeräte - Besondere Anforderungen - Teil 4: FluggastbrückenMatériel au sol pour aéronefs - Exigences particulières - Partie 4: Passerelles passagersAircraft ground support equipment - Specific requirements - Part 4: Passenger boarding bridges49.100Oprema za servis in vzdrževanje na tlehGround service and maintenance equipmentICS:Ta slovenski standard je istoveten z:EN 12312-4:2014SIST EN 12312-4:2014en01-junij-2014SIST EN 12312-4:2014SLOVENSKI

STANDARDSIST EN 12312-4:2004+A1:20091DGRPHãþD
SIST EN 12312-4:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12312-4
March 2014 ICS 49.100 Supersedes EN 12312-4:2003+A1:2009English Version

Aircraft ground support equipment - Specific requirements - Part 4: Passenger boarding bridges

Matériel au sol pour aéronefs - Exigences particulières - Partie 4: Passerelles passagers

Luftfahrt-Bodengeräte - Besondere Anforderungen - Teil 4: Fluggastbrücken This European Standard was approved by CEN on 20 December 2013.

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.

CEN members are the national standards bodies of 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12312-4:2014 ESIST EN 12312-4:2014

EN 12312-4:2014 (E) 2 Contents Page Foreword ...................................................................................................................................................................... 3 Introduction ................................................................................................................................................................. 5 1 Scope .............................................................................................................................................................. 6 2 Normative references .................................................................................................................................... 6 3 Terms and definitions ................................................................................................................................... 7 4 List of hazards ................................................................................................................................................ 9 5 Safety requirements and/or measures ........................................................................................................ 9 5.1 General requirements .................................................................................................................................... 9 5.2 Controls, monitoring and warning devices ............................................................................................... 11 5.3 Vertical drive systems ................................................................................................................................. 11 5.4 Horizontal drive systems ............................................................................................................................ 12 5.5 Bridgehead ................................................................................................................................................... 12 5.6 Operating speeds......................................................................................................................................... 13 5.7 Passenger areas .......................................................................................................................................... 13 5.8 Operator's workplace .................................................................................................................................. 14 5.9 Safeguards against falling .......................................................................................................................... 15 5.10 Service stairs and landings ........................................................................................................................ 16 5.11 Lighting ......................................................................................................................................................... 16 5.12 Fire protection .............................................................................................................................................. 17 5.13 Electrical equipment .................................................................................................................................... 17 6 Information for use ...................................................................................................................................... 17 6.1 Marking ......................................................................................................................................................... 17 6.2 Additional marking ...................................................................................................................................... 17 6.3 Warnings ....................................................................................................................................................... 18 6.4 Instructions .................................................................................................................................................. 18 7 Verification of requirements ....................................................................................................................... 19 7.1 General .......................................................................................................................................................... 19 7.2 Barrier or bridgehead closure device ........................................................................................................ 19 Annex A (normative)

List of hazards ....................................................................................................................... 20 Table A.1 — List of hazards ..................................................................................................................................... 20 Annex B (informative)

Sloping gradients ................................................................................................................ 23 Table B.1 — Sloping gradients ................................................................................................................................ 23 Figure B.1 — Schematical indication of sloping gradients .................................................................................. 23 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC ................................................................................................ 24 Bibliography .............................................................................................................................................................. 25

SIST EN 12312-4:2014

EN 12312-4:2014 (E) 3 Foreword This document (EN 12312-4:2014) 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 by September 2014, and conflicting national standards shall be withdrawn at the latest by September 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12312-4:2003+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(s). For relationship with EU Directive(s), 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; (this document) — Part 5: Aircraft fuelling equipment; — Part 6: Deicers and deicing/antiicing equipment; — Part 7: Aircraft movement equipment; — Part 8: Maintenance stairs and platforms; — 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; — Part 16: Air start equipment; — Part 17: Air conditioning equipment; SIST EN 12312-4:2014

EN 12312-4:2014 (E) 4 — Part 18: Nitrogen or Oxygen units; — Part 19: Aircraft jacks, axle jacks and hydraulic tail stanchions; — Part 20: Electrical ground power units. The main technical changes compared to the previous version are the following: a) Amendment A1:2009 was incorporated; b) the Introduction was updated; c) the Scope was updated; d) Clause 2, Normative references, was updated; e) the terms and definitions for terminal/terminal building and fixed tunnel/bridge link were added; f) List of hazards was moved to Annex A; g) Subclause 5.1.3 and 5.1.5 were added; h) Old subclause 5.1.3 was re-numbered and changed; i) Subclauses 5.2 to 5.13 were changed with subclauses 5.5.4, 5.7.9, 5.12.5, 5.12.6 being added; j) Clause 6, Information for use, was changed with additional warnings being added to subclause 6.3; k) Clause 7, Verification of requirements, was changed; l) Annex A, Example of typical boarding bridge, was deleted and replaced by the List of hazards; 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 organizations 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12312-4:2014

EN 12312-4:2014 (E) 5 Introduction This European Standard specifies health and safety requirements, as well as some functional and performance requirements, for passenger boarding bridges (PBB) intended for passenger embarking/disembarking of 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 PBB. Deviations from the recommended criteria should occur only after careful consideration, extensive testing, risk assessment and thorough service evaluation have shown alternative methods or conditions to be satisfactory. This European Standard is a Type C standard as stated in EN ISO 12100. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this document. When provisions of this Type C standard are different from those which are stated in Type A or B standards, the provisions of this Type C standard take precedence over the provisions of the other standards for machines that have been designed and built according to the provisions of this Type C standard. Deviations from requirements do not fall within the presumption of conformity given by the standard. SIST EN 12312-4:2014

EN 12312-4:2014 (E) 6 1 Scope This European Standard specifies the technical requirements to minimize the hazards listed in Clause 4 which can arise during the commissioning, operation and maintenance of passenger boarding bridges (PBBs) 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. This European Standard applies to: a) apron-drive bridges; b) fixed-head bridges (also referred to as nose-loaders) or pedestal bridges; c) suspended bridges, for embarking/disembarking of passengers. It is applicable from the interface with the terminal building, which can be movable, e.g. on two levels to separate arrival and departure level to the connection with the aircraft including fixed tunnels. This European Standard does not apply to: d) elevating lounges; e) passenger stairs; f) other form of aircraft access equipment; g) automatic PBB positioning. This European Standard does not establish requirements for hazards caused by noise and vibration. NOTE EN 1915–3 and EN 1915–4 provide the general GSE vibration and noise requirements. This part of EN 12312 is not applicable to PBBs which were 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 and EN 1915-4 provides the requirements for PBBs. 2 Normative references The following documents, in whole or in part, are normatively referenced in 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 (including any amendments) applies. 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 12312-4:2014

EN 12312-4:2014 (E) 7 EN 1915-4, Aircraft ground support equipment - General requirements - Part 4: Noise measurement methods and reduction EN ISO 7010, Graphical symbols - Safety colours and safety signs - Registered safety signs (ISO 7010) EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13849-1:2008, Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13850:2008, Safety of machinery - Emergency stop - Principles for design (ISO 13850:2006) EN 60332 (all parts), Tests on electric and optical fibre cables under fire conditions ISO 3795, Road vehicles, and tractors and machinery for agriculture and forestry — Determination of burning behaviour of interior materials ISO 7718-1, Aircraft - Passenger doors interface requirements for connection of passenger boarding bridge - Part 1: Main deck doors ISO 7718-2, Aircraft - Passenger doors interface requirements for connection of passenger boarding bridge - Part 2: Upper deck doors ISO 16004, Aircraft ground equipment - Passenger boarding bridge or transfer vehicle — Requirements for interface with aircraft doors DIN 51130:2004, 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 EN 1915-2:2001+A1:2009 together with the following apply. 3.1 passenger boarding bridge (PBB) enclosed adjustable passenger walkway connecting the terminal building to the aircraft 3.2 apron-drive bridge PBB with a drive unit, that can be driven across the apron within its operating range 3.3 pedestal bridge PBB without an apron drive unit 3.4 suspended bridge PBB which is driven from a cantilevered structure 3.5 rotunda enclosed structure about which the PBB rotates for radial movement and hinges for vertical movement SIST EN 12312-4:2014

EN 12312-4:2014 (E) 8 3.6 rotunda column supporting structure for the rotunda 3.7 tunnel enclosed walkway section 3.8 elevating leg assembly for raising and lowering the PBB 3.9 drive unit wheeled carriage of apron-drive bridges on which elevating legs are mounted 3.10 bridgehead transitional area at the aircraft end of the PBB 3.11 canopy flexible weather protection between the aircraft and the PBB 3.12 service stair stair and landing allowing access from the apron to the PBB 3.13 auto-levelling device which ensures automatic vertical adjustment of the PBB, corresponding to vertical movement of the aircraft 3.14 vertical drive system means of adjusting the height of the PBB 3.15 horizontal drive system means of adjusting the position of the PBB in the horizontal plane 3.16 telescoping system system used to extend or retract the PBB 3.17 bridgehead rotation system means to adjust the bridgehead sill towards the fuselage of the aircraft 3.18 translation movement of the PBB across an airfield apron. Movement involves elements of rotation and/or extension 3.19 inter-ramp short ramp providing a smooth transition between telescoping tunnel floors, or where a step might otherwise occur SIST EN 12312-4:2014

EN 12312-4:2014 (E) 9 3.20 emergency lowering means of coping automatically with a sudden aircraft movement exceeding the capability of normal autolevelling 3.21 manual mode mode, which allows operator-initiated control of all bridge movements 3.22 automatic mode mode that initiates control of all PBB movement without intervention by the operator. This does not include autolevelling mode 3.23 safety shoe pressure-sensitive switch placed underneath the open door of an aircraft to detect excessive downward motion of the aircraft 3.24 bridgehead closure device door or equivalent device (e.g. shutter) closing the bridgehead opening on the side intended for connection to the aircraft 3.25 barrier movable element to prevent access into an area 3.26 terminal / terminal building building or building extension, to which an aircraft is connected via the passenger boarding bridge 3.27 fixed tunnel / bridge link unmoving PBB element connecting the movable parts of the PBB to the terminal 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 PBBs 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 PBBs shall conform to the relevant requirements of EN 1915-1, EN 1915-2 and EN 1915-4 unless otherwise specified in this standard. PBBs shall comply with the safety requirements and/or protective measures of this clause. In addition, the PBBs shall be designed according to the principles of EN ISO 12100 for relevant but not significant hazards, which are not dealt with by this document. 5.1.2 Stability and strength calculations shall be carried out in accordance with EN 1915-2. Resonance shall be taken into account. SIST EN 12312-4:2014

EN 12312-4:2014 (E) 10 5.1.3 PBB shall be designed so that the stability and strength are ensured during intended use. The basis for calculation shall be the most unfavourable combination of static and dynamic loads defined according to EN 1915-2 except as provided in 5.1.5 for the most unfavourable PBB situation. 5.1.4 The lower parts of drive units of bridges with drive units shall be fitted with a device/devices to prevent the running over of persons and contact with dangerous parts of machinery. This is achieved if the protective device fulfils the following requirements: a) the protective device shall prevent access to dangerous parts of the drive unit; b) the protective device shall be designed so as to prevent persons from reaching over the protective device into the danger zone when the device is touching persons. This can be achieved e. g. if the protective device has a minimum height above ground level of 1 000 mm; c) the distance of the protective device from ground level shall not exceed 200 mm at all positions and under all operating conditions; d) the distance between protective device and parts of the wheels or drive unit shall be at least 200 mm; e) the protective device shall be equipped with at least one trip (switch) bar at the bottom; f) the bar shall detect the presence of a person in all directions of movement of the PBB and stop movement before the danger zone is reached; g) the safety related parts of the interlocking system shall achieve Performance Level “c” according to EN ISO 13849-1:2008; As an alternative to a physical barrier and trip bar, contactless protective devices may be used. These devices shall meet the following requirements: h) They shall ensure the detection of a person at a minimum distance of 0,5 m from any point of the drive unit; i) when moving at maximum speed in any direction, detection of a person shall stop the movement of the PBB before contact is achieved between any point of the drive unit and the person; j) access to dangerous parts of the drive unit shall be prevented unless other protective devices have been fitted to achieve this; k) detection and interlocking systems shall achieve Performance Level “d” according to EN ISO 13849-1:2008. 5.1.5 As an exception from EN 1915-2:2001+A1:2009, 5.2.2.7, the following minimum wind speeds shall be taken into account for stability and strength calculations: a) PBB operation under rated load, fully erected and extended under the most unfavourable combination of loads: 27,8 m/s (100 km/h, 54 kn); b) PBB in parking position without rated load: 41,7 m/s (150 km/h, 80 kn). NOTE As far as the aircraft is concerned, embarkation and disembarkation of passengers are allowed up to 30,6 m/s (110 km/h, 60 kn) or 33,2 m/s (120 km/h, 65 kn) depending on aircraft type. See ISO 11995. Where, based on local weather records, the wind speed defined in (b) can exceptionally be exceeded, the PBB shall include provisions to tie it down to the ground up to a wind speed determined by the local authorities. SIST EN 12312-4:2014

EN 12312-4:2014 (E) 11 Tie-down provisions should also be needed on the ground in the immediate vicinity of the PBB, with their number, geometry and strength sufficient to guarantee PBB restraint up to the same wind speed. 5.2 Controls, monitoring and warning devices 5.2.1 Positioning controls shall be provided to control the movement and speed of the PBB. The control devices shall ensure that appropriate approach/docking speeds and direction of travel can be maintained by the operator, e.g. marking of joy stick position, switch speed selector, separate control devices. 5.2.2 An emergency stop shall be provided at the control panel. Emergency stops shall meet the requirements of EN ISO 13850:2008, 4.1.4. The emergency stop shall not de-activate the braking system. In addition, at least two emergency stops on opposite sides of the drive unit in a safe position and easily accessible from the apron, e.g. between 1,0 m and 1,5 m high and maximum 0,5 m from the outer contour shall be provided on the drive unit of apron-drive PBBs. 5.2.3 For apron-drive PBBs, a monitoring system, e.g. camera, monitor display at the control panel allowing visibility of the area surrounding the drive unit and bottom of the service stair and stabilizers, where installed, shall be provided. It shall be possible to distinguish a human form. 5.2.4 Where cameras are provided they shall be mounted below the PBB in a position to conform to 5.2.3. They shall be installed in such a manner as to ensure no misting of the camera lenses. 5.2.5 The monitoring system shall remain on, while the PBB is manoeuvring in manual or automatic mode. 5.2.6 Intermittent amber warning light(s) shall be positioned so as to be clearly visible from all directions by persons on the apron. The minimum luminous flux of lamps shall be 250 lm. 5.2.7 The warning lights shall be activated prior to, and during any movement of, the PBB. NOTE The warning lights are not required to operate when the PBB is in autolevel mode. 5.2.8 An audible warning device shall be activated automatically before the PBB starts manoeuvring. NOTE The audible warning device is not required to operate when the PBB is in autolevel mode. 5.2.9 Where an audible warning device is used to indicate height adjustment while in autolevel mode, this signal shall be clearly identifiable as separate to the signal used during movement. 5.2.10 Signals shall be clearly audible by persons on the apron, e.g. in the vicinity of the drive unit. 5.2.11 During autolevelling the subsequent positioning of the canopy shall be automatic. The corresponding safety circuit shall achieve Performance Level “b” according to EN ISO 13849-1:2008. 5.3 Vertical drive systems 5.3.1 Vertical drive systems for PBBs shall be designed so that the supporting structures withstand all stresses which may occur during operation or when safety devices are tripped including an evenly distributed working load of 3 000 N/m2 applied to all passenger areas, without permanent deformation. Loads that are dependent on local conditions, e.g. wind loads, snow loads, should be determined by the manufacturer taking into account information provided by the user. 5.3.2 Where a PBB is supported by two lifting devices, either on its own shall be capable of supporting the PBB under full load conditions in the event of failure of one lifting device. Consideration shall also be given to the effect on the whole structure of the failure of one lifting device. This loading condition shall be considered as exceptional. SIST EN 12312-4:2014

EN 12312-4:2014 (E) 12 5.3.3 The lowering distance of 100 mm in case of failure as given in EN 1915-1:2013, 5.21.2 shall be measured at the bridgehead sill. 5.4 Horizontal drive systems 5.4.1 Where fixed electrical ground power systems for the aircraft are provided on the PBB, they shall be interlocked to the horizontal drive system to prevent movement of the PBB whenever the aircraft is connected. The safety related parts of the interlocking system shall achieve Performance Level “b” according to EN ISO 13849-1:2008. The interlock may be overridden only at low PBB speed under intentional operator action on a specific hold-to-run control at the control panel. 5.4.2 Telescoping systems shall be designed so that: a) correct alignment of the tunnels is ensured; b) the tunnel end positions are secured by fixed buffered mechanical limit stops in such a way as to prevent separation of the tunnels. Any crushing or shearing points shall be prevented in accordance with EN 1915-1:2013, 5.15. This shall preferably be achieved by mechanical protection. Where ultimately this cannot be achieved by mechanical means, movement shall cease should a person be detected at a crushing or shearing point. The safety related parts of the interlocking system shall achieve Performance Level “c” according to EN ISO 13849-1:2008. 5.4.3 Telescoping systems shall be designed such that when stopped the tunnel elements remain in their set position. These systems shall stop the telescoping movement in normal operation. In an emergency situation, e.g. activation of an emergency stop or a safety detector, the telescopic movement shall stop within 100 mm. Telescoping movement may be measured at the drive unit. 5.4.4 With the exception of hydrostatic drive translation systems shall be equipped with a braking system that is applied automatically if the PBB is without power or not being driven. In the case of power failure, it shall be possible to release the braking system to allow the PBB to be moved to a safe position by auxiliary means, e.g. using a tractor. A specific coupling shall be provided for towing. It shall be ensured that the PBB cannot be operated before resetting the braking system. 5.4.5 Where the possibility of collision between PBBs exists, preventative safety measures shall be taken by distance detection systems. Where distance detection systems are selected, the related interlocking systems shall achieve Performance Level “b” according to EN ISO 13849-1:2008. 5.5 Bridgehead 5.5.1 The bridgehead rotation system shall be designed so that its end positions are secured by fixed buffered mechanical limit stops in such a way as to prevent rotation beyond the intended limits. 5.5.2 The bridgehead rotation system shall,

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