Bsi bs en 12312 3 2017

NORME EUROPÉENNE English Version Aircraft ground support equipment - Specific requirements - Part 3: Conveyor belt vehicles Matériel au sol pour aéronefs - Exigences particulières - Par

Aircraft ground support equipment — Specific requirements

Part 3: Conveyor belt vehicles

BSI Standards Publication

National foreword

This British Standard is the UK implementation of EN 12312-3:2017

It supersedes BS EN 12312-3:2003+A1:2009 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee ACE/57, Air cargo and ground support equipment

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application

© The British Standards Institution 2017

Published by BSI Standards Limited 2017

Amendments/corrigenda issued since publication

Date Text affected

NORME EUROPÉENNE

English Version

Aircraft ground support equipment - Specific requirements - Part 3: Conveyor belt vehicles Matériel au sol pour aéronefs - Exigences particulières

- Partie 3 : Convoyeurs à bande Luftfahrt-Bodengeräte - Besondere Anforderungen - Teil 3: Förderbandwagen This European Standard was approved by CEN on 30 October 2016

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E UR O P É E N DE N O R M A L I SA T I O N

E UR O P Ä I SC H E S KO M I T E E F ÜR N O R M UN G

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CEN All rights of exploitation in any form and by any means reserved Ref No EN 12312-3:2017 E

Contents Page

European foreword 4

Introduction 7

1 Scope 8

2 Normative references 8

3 Terms and definitions 9

4 List of hazards 10

5 Safety requirements and/or measures 10

5.1 General requirements 10

5.2 Boom design 11

5.3 Access 12

5.4 Guard-rails 13

5.5 Guide rails 14

5.6 Performance (loads and speeds) 14

5.7 Controls 15

5.8 Ergonomics 15

6 Information for use 17

6.1 Marking 17

6.2 Warnings 17

6.3 Instructions 17

7 Verification of requirements 18

Annex A (normative) List of hazards 19

Table A.1 — List of hazards 19

Annex B (informative) Hazards at boom and belt 22

Figure B.1 — Principle drawing of a reversible conveyor belt showing the drawing-in points 22

Figure B.2 — Drawing-in point at the ramp end of the boom where a fixed tray is mounted 22

Figure B.3 — Drawing-in point at the ramp end of the boom where a roller tray is mounted 22

Annex C (normative) Safety measures against drawing-in hazards on pulleys and idlers 23

Figure C.1 — Rolled steel sections 23

Figure C.2 — Sheet metal 23

Figure C.3 — Rolled steel section 24

Annex D (normative) Safety measures on end cross arms or trays 25

Figure D.1 — Safety distance 25

Figure D.2 — Pop out roller 25

Figure D.3 — Switchbar 26

Annex E (informative) Safety distances for feet and hands (Extract from EN 349) 27

Table E.1 — Safety distances 27

Annex ZA (informative) Relationship between this European standard and the essential

requirements of EU Directive 2006/42/EC aimed to be covered 28 Table ZA.1 – Correspondence between this European standard and EU Directive

2006/42/EC 28 Bibliography 29

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 12312-3:2003+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 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 (the present document);

— Part 4: Passenger boarding bridges;

— Part 5: Aircraft fuelling equipment;

— Part 6: Deicers and deicing/antiicing equipment;

— Part 7: Aircraft movement equipment;

— Part 8: Maintenance or service 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;

— Part 18: Nitrogen or Oxygen units;

— Part 19: Aircraft jacks, axle jacks and hydraulic tail stanchions;

— Part 20: Electrical ground power units

Annexes A, C and D are normative Annexes B, E and ZA are informative

The main changes compared to the previous edition EN 12312-3:2003+A1:2009 are:

a) A1:2009 was incorporated;

b) the Introduction was updated in relation to the deviation from recommended criteria;

c) the Scope was updated to cover reasonably foreseeable misuse;

d) Clause 2, Normative references, was updated;

e) List of hazards was updated to exclude hazards due to traffic and repair and was moved to Annex A;

f) 5.1, General requirements, was changed to include a seat-belt or hip guard and further provisions

regarding the driver’s accommodation, e.g protection from falling loads as well as compliance with

EN 1915-3 and EN 1915-4;

g) 5.2, Boom design was completely revised;

h) 5.3, Access was added, thus making it necessary to re-number the following clauses and subclauses i) 5.3 Guard-rails, guide rails was re-numbered as 5.4 and divided into 5.4 Guard-rails (covering the original subclauses 5.3.1 through 5.3.5) and 5.5 Guide rails (covering the original subclauses 5.3.6

through 5.3.9), it was expanded to cover foldable and adjustable elements, including the size of allowable gaps;

j) 5.4 Performance (loads and speeds) was re-numbered as 5.6 and contains new provisions regarding

the driving speeds while in raised position and a seat-belt;

k) 5.5 Controls was re-numbered as 5.7 and contains new provisions regarding controls, also during

aircraft loading/unloading operations, and the emergency stop;

l) 5.8, Ergonomics was added;

m) 6.3, Instructions, was extended to cover information about aircraft types and cargo doors, safe

positions for opening/closing of cargo doors, belt bottom tray and restricted operation in adverse weather conditions;

n) Clause 7, Verification of requirements, was updated;

o) informative Annex A, Typical designs of conveyor belt vehicles, was deleted and replaced by normative Annex A, List of hazards;

p) informative Annex C, Hazards at boom an belt, was re-numbered as informative Annex B and nip

points were re-named as drawing-in points;

q) informative Annex D, Safety measures against drawing-in hazards on pulleys and idlers was changed

into normative Annex C with the same title and updated;

r) informative Annex E, Safety measures on end cross arms or trays, was changed into normative

Annex D with the same title;

s) informative Annex F, Safety distances for feet and hands (Extract from EN 349), was re-numbered as

informative Annex E;

t) Annex ZA referring to the Machinery Directive 98/37/EC was replaced by Annex ZA referring to the new Machinery directive 2006/42/EC;

u) 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

Introduction

This European Standard specifies health and safety requirements, as well as some functional and performance requirements, for conveyor belt vehicles intended for loading/unloading of individual items of baggage or cargo on/off 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 conveyor belt vehicles 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 European Standard is a Type C standard as stated in EN ISO 12100

When provisions of this Type C standard are different from those that 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

1 Scope

This European Standard specifies the technical requirements to minimize the hazards listed in Clause 4 that can arise during the commissioning, operation and maintenance of conveyor belt vehicles 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) self-propelled conveyor belt vehicles with or without driver's accommodation,

b) self-propelled conveyor belt vehicles equipped with a van body,

c) towed conveyor belt vehicles,

intended to be used for manual loading/unloading of aircraft

This European Standard does not apply to any extensions or appurtenances of conveyor belt vehicles entering the aircraft cargo compartment in order to facilitate loading and unloading therein (“Aircraft Bulk Loading Systems”, ABLS)

This European Standard does not apply to pneumatic systems and to cable-less remote controls

This part of EN 12312 is not applicable to conveyor belt vehicles that were manufactured before the date of publication of this European 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 conveyor belt vehicles

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 349, Safety of machinery — Minimum gaps to avoid crushing of parts of the human body

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

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 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)

EN ISO 14122-1, Safety of machinery - Permanent means of access to machinery - Part 1: Choice of fixed

means and general requirements of access (ISO 14122-1:2016)

ISO 11532:2012, Aircraft ground equipment — Graphical symbols

ISO 11228-1, Ergonomics — Manual handling — Part 1: Lifting and carrying

ISO 11228-3, Ergonomics — Manual handling — Part 3: Handling of low loads at high frequency

DIN 51130:2014-02, 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 and

EN 1915-1:2013 and the following apply

3.1

conveyor belt vehicle

vehicle comprising a chassis, a boom with a belt, and a lifting device

3.8

contact protection system

device at the end of the boom to disconnect the power source during approach/travel to the aircraft

4 List of hazards

The list of risks and hazards (given in 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 conveyor belt vehicles and which require action to eliminate or reduce risks Not covered are risks and hazards due to the traffic and repair

5 Safety requirements and/or measures

5.1 General requirements

5.1.1 Conveyor belt vehicles shall conform to the relevant requirements of EN 1915-1, EN 1915-2,

EN 1915-3 and EN 1915-4 unless otherwise specified in this European Standard They shall also conform to the specific requirements of this European Standard

5.1.2 Strength calculations shall be carried out in accordance with EN 1915-2

5.1.3 Stability calculations shall be carried out according to EN 1915-2 Special attention shall be paid

to travel conditions

5.1.4 Driver's accommodation of self-propelled vehicles shall be fitted with at least a two-point seat

belt A hip guard shall be provided for non-fully enclosed accommodation

Driver accommodation shall provide unobstructed visibility across the boom when it is in the lowered driving position

Driver position controls shall be protected against a load falling from the boom

5.1.5 The electrical system of battery powered conveyor belt vehicles shall conform to EN 1175-1,

with the exception of standard automotive chassis

5.1.6 The boom shall protrude at least at the ramp side

5.1.7 The conveyor belt vehicle shall be capable of servicing any aircraft sill height, for which it is

designed, with the opposite end within the height range specified in 5.2.9 and 5.8.4

NOTE See 6.3, Instructions for use, for listing by the manufacturer of aircraft types the conveyor is intended

to serve

5.1.8 Where adjustment of elevation of both ends of the boom is provided it shall be possible to adjust

the ends independently from each other

5.1.9 Independent of the position of the boom it shall be possible to gain access to service points

requiring frequent use (e.g daily) at any time without operating the power source

5.1.10 All sharp edges or corners resulting from the manufacturing process shall be chamfered or

rounded with a minimum radius of 3 mm

5.1.11 Where a sprung front axle is used, the suspension shall be restricted so as to limit vertical

movement at the aircraft end of the boom, when the conveyor belt vehicle is being driven, e.g by using

5.1.12 Where power operated stabilizers are provided, it shall be possible to retract the stabilizers in

the event of primary power loss by auxiliary means, e.g hand pump

5.1.13 Structural parts or stabilizers of pedestrian controlled self-propelled conveyor belt vehicles

shall not protrude from the overall length within the operating range of the tiller

5.1.14 Where lights for the illumination of working areas or positioning lights are fitted, their design

shall conform to EN 1837 The minimum luminous flux of the lamp shall be 250 lm

5.2 Boom design

5.2.1 The design of the boom, where intended, shall be such that it can be used by the operator as a

ramp to gain access to the hold door and safely open or close it, enter the hold or exit from it (see

EN 1915-1:2013, Introduction, f) — negotiation)

NOTE Requirements for guard-rails, see 5.4 and 5.5

5.2.2 Access from the ground to the chassis and from the chassis to the belt shall meet the

requirements of EN 1915-1:2013, 5.14 and 5.3 hereafter

5.2.3 The boom shall be connected to the lifting system by a means that prevents unintended

disconnection

5.2.4 The lifting device of the boom shall be protected against unintentional movement, e.g on

hydraulic cylinders by a lock-valve mounted directly to the cylinder

5.2.5 Drawing-in to trapping points at conveyor belt pulleys shall be prevented by one of the

measures described at Annex C, or equivalent Annex B provides examples of drawing-in points

5.2.6 Where a tray is mounted at either end of the boom, protection against trapping of limbs

between the tray and the running belt shall be provided by construction in accordance with Figure D.2 and Figure D.3 or by safety distances in accordance with Figure D.1 (see Annex E)

5.2.7 Protection against crushing and shearing between the boom and accessible fixed parts shall be

provided, e.g by shielding with protective plates It shall meet the requirements of EN 1915-1:2013, 5.15, in particular where the conveyor belt vehicle is equipped with driver’s accommodation

5.2.8 The end of the boom interfacing with the aircraft shall be protected by suitable means, e.g

bumpers and/or side wheels

The aircraft protection device(s) shall:

a) be of a non-marking semi-soft material with a Shore surface hardness not exceeding A50,

b) ensure a minimum 60 mm crushing capability,

c) be designed to minimize any force exerted onto the aircraft cargo compartment doorframe

It is recommended that the static force equivalent does not exceed 1 500 N distributed over the length,

or 1 500 N on any 100 mm x 100 mm contact area

The aircraft interface device may include a contact detection feature able to provide an electrical signal when contact with the aircraft is achieved at any point and which can be used to stop movement In this case, the related interlocking systems shall achieve Performance Level “b” according to

EN ISO 13849-1:2015

5.2.9 The boom height shall be such that, when in working position on all aircraft types intended to

be serviced, the belt at the ramp end shall have an adjustable height range between 0,45 m or less to 0,85 m or more

See Clause 5.8 on ergonomic recommendations and EN 1915-1:2013, Introduction, f) – negotiation, taking into account the height of the loose load trailers at the airport of use

The ground clearance shall allow without interference the traversing of two surfaces intersecting at an angle of ± 3° (5 %) either in bridging or cresting Where this is not possible, a safety interlock shall be provided to prohibit vehicle travel if the ramp end of the boom is too low and may touch the ground as a result of vehicle movement on its suspensions In this case, the related interlocking systems shall achieve Performance Level “b” according to EN ISO 13849-1:2015

The maximum boom incline in the working position when the aircraft end is highest and the ramp end lowest should not exceed 22° (40 %) (see 5.3.3)

NOTE See 6.3, Instructions for use, for listing by the manufacturer of the aircraft types the conveyor is intended to serve

5.2.10 The minimum belt width shall be 600 mm The belt shall be weather proof and where linking

means are used, care shall be taken to avoid protruding parts or gaps

5.2.11 The belt shall have an anti-slip surface (see 5.3.3) and shall be designed to provide for drainage

of water

5.2.12 The belt shall be supported by rollers and/or other devices to allow safe conveyance of load(s)

and for safe walking purposes preferably by plates

5.2.13 The friction between drive drum and belt shall be sufficient to exclude slipping under maximum

payload

The influence of weather conditions to be expected on the airport of use should be taken into account (see EN 1915-1:2013, Introduction, f) — negotiation)

5.2.14 A belt tensioning system covering the foreseeable elongation of the belt shall be installed The

adjustment shall be possible without dismounting of parts or use of special tools

5.2.15 The belt drive system shall include a safety device which operates whenever the motive power

is cut off or fails, to prevent a loaded belt from free running due to the potential energy of the load

5.3 Access

5.3.1 Personnel access with protection against the risk of falling shall be provided:

a) from the ground to the rear / lower part of the boom,

b) for walking on the belt to reach the aircraft cargo compartment door (see 5.3.3),

c) from the belt into the aircraft cargo compartment

5.3.2 The means of access from ground to belt shall consist in steps located in the aft part of the

vehicle The belt surface may constitute the upper landing, and a fixed part of the vehicle's chassis may

be used as one of the steps providing its surface is anti-slip and the riser height remains constant

The access steps shall be provided on their outer side(s) with a fixed guard-rail meeting the requirements of EN 1915-1:2013, Annex D.3 f), ensuring a safe transition to and from the boom's guard-rail (see 5.4.1) Any gap between the two guard-rails due to boom position shall so far as practicable not exceed 120 mm

5.3.3 Access to/from the aircraft cargo compartment door level may be by walking up/down the

surface of the belt For this purpose:

a) the boom inclination shall be kept as low as possible consistent with the aircraft to be served and,

as a deviation from EN ISO 14122-1, should not exceed 22° (40 %)

NOTE See 6.3, Instructions for use, for listing by the manufacturer of the aircraft types the conveyor is intended to serve

b) the belt's surface shall have a durable slip-resistant surface, with a minimum R13 slip-resistance classification including while soaked in water Slip resistance classification shall be measured in accordance with DIN 51130:2014-02, Table 3

The influence of weather conditions to be expected at the airport of use should be taken into account (see EN 1915-1:2013,Introduction, f) — negotiation)

c) both sides of the belt shall be protected by guard-rails meeting the requirements of 5.4

5.3.4 The situation most prone to a tripping and falling hazard during access and egress is

opening/closing the aircraft cargo compartment's door while standing or kneeling, as appropriate, on the belt Provisions shall be made for eliminating or reducing the risk of falling during door opening and closure

When aircraft cargo compartment door opening or closure requires the use of both hands, guard-rails with telescopic sections that can be adjusted to minimize gaps prior to door opening/closing shall be provided

5.4 Guard-rails

5.4.1 Guard-rails shall be installed on each long side of the boom where the maximum intended

height from ground level to the belt surface exceeds 1 m One or both of the guard-rails may be foldable

or retractable and as an exception from EN 1915-1 may fold outward Foldable or retractable rails shall retract below the belt surface and shall be automatically secured in the protecting position by

guard-a positive locking device thguard-at cguard-an be releguard-ased by guard-a gloved hguard-and

Guard-rails and guide rails can be lowered or folded for operational reasons Any folding element should not protrude out of the vehicle's overall width while travelling Where this is not possible, vehicle driving speed shall be limited to 6 km/h (slow speed) unless the guard-rails are in their non-protruding position

The related interlocking systems shall achieve Performance Level “b” according to

EN ISO 13849-1:2015

5.4.2 The total height of guard-rails shall not be less than 850 mm measured at a right angle to the

working surface on the boom

When a guard-rail height of 850 mm can hinder correct positioning of the conveyor belt vehicle and can cause damage to the aircraft, related sections of the guard-rails shall be constructed as foldable or retractable safeguards

5.4.3 Guard-rails shall be adjustable to the fuselage of the aircraft Telescopic parts shall be secured

against movement by means of a friction fit safeguard resistant to a force of at least 200 N The friction

of the safeguard shall be releasable easily without hazard of squeezing or pinching It shall be possible

to release the safeguard with gloved hands

Adjustment shall be possible by increments not exceeding 120 mm, so that any gap to the aircraft fuselage can be kept within this range Special attention shall be paid to the geometry of adjustable elements in order to eliminate or reduce the risk of falling sideward during cargo compartment door opening and closure in either a standing or a kneeling position (see 5.3.4)

NOTE Contoured adjustable elements can be necessary on certain aircraft types where an engine is located above the cargo compartment door

5.4.4 Where weather protection with a canopy or a roof is installed over the boom it shall not

interfere with moveable parts of the guard-rails

5.4.5 The leading edge of guard-rails adjustable parts shall be adequately padded to avoid damage to

the aircraft fuselage

5.5 Guide rails

5.5.1 Lateral guide rails with a minimum height of 100 mm above the belt surface shall be installed on

each long side of the boom

NOTE Guide rails can be combined with guard-rails and thus replace their toe-plate

5.5.2 The internal surface of guide rails shall be smooth

5.5.3 The minimum width between the guide rails shall be 700 mm

5.5.4 Guide rails shall be shorter than the conveyor and provide lateral access of 1,2 m maximum at

the aircraft side and of 0,7 m maximum at the ramp end of the conveyor

5.6 Performance (loads and speeds)

5.6.1 For the structural design and calculations of the complete conveyor belt vehicle, excluding belt

drive power, the following loads are to be considered:

a) a minimum load of 1 324 N (135 kgf) on each metre length of the conveyor, evenly distributed; b) a minimum single load of 3 924 N (400 kgf) on a base area of 0,6 m × 0,8 m;

at the most unfavourable position

NOTE These loads cannot apply in the case of specialized light duty conveyors for light weight commodities such as flower boxes or mail (see EN 1915–1:2013, Introduction, f) — negotiation)

5.6.2 The maximum driving speed of a self-propelled conveyor belt vehicle with driver

accommodation shall not exceed 40 km/h Speed shall be limited to 6 km/h when the boom is raised, preferably automatically, or, if operator controlled, by a control identified by the “turtle” symbol of ISO 11532:2012, number 52 Where it is over 25 km/h, a three point safety belt should be provided

EN 1915-1:2013, 5.23.1 shall be applied whenever the boom is not in the rest position

5.6.3 The belt speed shall be adjustable but not exceed 0,8 m/s and allow a speed of 0,15 m/s

NOTE Higher belt speeds can be stipulated for special purposes (see EN 1915–1:2013, Introduction, f) — negotiation)

5.6.4 The maximum sag at any point of the load surface of the belt shall not exceed 20 mm under

loaded conditions of EN 1915-2:2001+A1:2009, 5.2.2.3 (see also 5.2.12)

5.7 Controls

5.7.1 Control device actuators shall be protected against activation or damage from falling items of

load, e.g by position, rigid guarding

5.7.2 Simultaneous movement of the conveyor belt vehicle, the boom and/or the belt shall not be

possible

5.7.3 On self-propelled conveyor belt vehicles with driver accommodation any changes of length or

angle of the boom shall be controllable from the driver accommodation only

5.7.4 On towable or pedestrian controlled self-propelled conveyor belt vehicles, the position for the

control of boom height and length shall be located in an optimum position to allow full visibility of both ends of the boom

5.7.5 Belt controls (forward-stop-reverse), which may be actuators with a lock-on facility, shall be

installed at locations accessible from the usual working positions of the operators As an exception from

EN 1915-1:2013, 5.4.3 upper and lower belt controls may be active during aircraft loading/unloading operations

5.7.6 The stop devices of the belt controls shall override the control selection at all other working

positions including a locked-on belt control according to 5.7.5

5.7.7 Where a remote control with cable linkage for the belt drive on the aircraft end of the boom is

provided, it shall fulfil the requirements in 5.7.5 and 5.7.6

5.7.8 Emergency stops shall be installed at both ends of the boom and be reachable from all working

positions Emergency stops shall meet the requirements of EN ISO 13850:2015, 4.1.3

5.7.9 Where a remote control is provided, it shall include an emergency stop meeting the

requirements in 5.7.8

5.7.10 Emergency stops shall stop all equipment functions including the power source The emergency

stop shall not de-activate the braking system

5.7.11 It shall be possible to lower the boom with an emergency stop activated

5.8 Ergonomics

5.8.1 The design of belt conveyors may assume manual loading at ground level by one person

provided that the luggage or cargo to be transported does not exceed 23 kg