1、DRAFT FOR DEVELOPMENT DD ENV 50230:1997 Aeronautical ground lighting electrical installation Control and monitoring systems: General requirements ICS 93.120DDENV 50230:1997 This Draft for Development, having been prepared under the direction of the Electrotechnical Sector Board, was published under
2、the authority of the Standards Board and comes into effect on 15 September 1997 BSI 04-1999 ISBN 0 580 27800 X National foreword This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature because
3、 it is an interim draft. A revised version of this document is being produced by IEC/TC97. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so tha
4、t UK experience can be reported to the European organization responsible for its conversion into a European Standard. A review of this publication will be initiated2 years after its publication by the European organization so that a decision can be taken on its status at the end of its three-year li
5、fe. The commencement of the review period will be notified by an announcement in Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Standard, to extend the life of the presta
6、ndard or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee EPL/97, Lighting and beaconing of aerodromes, at389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the
7、 text. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publica
8、tions may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theENV
9、title page, pages 2 to 8 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsDDENV 50230:1997 BSI 04-1999 i C
10、ontents Page National foreword Inside front cover Foreword 2 Text of ENV 50230 3ii blankEUROPEAN PRESTANDARD PRNORME EUROPENNE EUROPISCHE VORNORM ENV 50230 February 1997 ICS 93.120 Descriptors: Electrical installation, lighting, monitoring equipment, control equipment, aerodrome, requirement, perfor
11、mance, function English version Aeronautical ground lighting electrical installation Control and monitoring systems: General requirements This European Prestandard (ENV) was approved by CENELEC on 1996-07-02 as a prospective standard for provisional application. The period of validity of this ENV is
12、 limited initially to three years. After two years the members of CENELEC will be requested to submit their comments, particularly on the question whether the ENV can be converted into a European Standard (EN). CENELEC members are required to announce the existence of this ENV in the same way as for
13、 an EN and to make the ENV available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final decision about the possible conversion of the ENV into an EN is reached. CENELEC members are the national
14、 electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisati
15、on Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. ENV 50230:1997 EENV50230:1997 BSI 04-1999 2 Foreword Thi
16、s European Prestandard was prepared by the CENELEC BTTF72-3, Lighting fittings for aerodromes. The text of the draft was submitted to the CENELEC questionnaire and vote and was approved as ENV50230 on 1996-07-02. The following date was fixed: Contents Page Foreword 2 Introduction 3 1 Scope 3 2 Norma
17、tive references 3 3 Definitions 3 3.1 ATC system 3 3.2 Visual aids system 3 3.3 CCR 3 3.4 RVR 3 3.5 Instrument runway CAT I, II and III 3 4 General 4 5 Overview of the control and monitoring system 4 6 Basic Functions of a control and monitoring system 6 6.1 Controller working places 6 6.2 Maintenan
18、ce working place 6 6.3 Command processing 6 6.4 Monitoring of the operational status 7 6.5 Interface to the CCRs and other control units 7 7 Basic requirements for the general system design 7 7.1 Additional requirements for a processor supported systems 7 8 System performance 7 8.1 Response time 7 8
19、.2 Reliability 8 Figure 1 Overview diagram for the control and monitoring system 5 latest date by which the existence of the ENV has to be announced at national level (doa) 1996-12-01ENV50230:1997 BSI 04-1999 3 Introduction The International Civil Aviation Organization (ICAO) in its Annex 14 to the
20、Convention on International Civil Aviation, paragraph 8.2 Electrical Systems and paragraph 8.3 Monitoring, presents provisions, either as international standards or recommended practices, regarding control and monitoring systems for visual aids: “A system of monitoring visual aids should be employed
21、 to ensure lighting system reliability. Where lighting systems are used for aircraft control purposes, such systems should be monitored automatically so as to provide an immediate indication of any fault which may affect the control function. This information should be automatically relayed to the a
22、ir traffic service unit.” And: “For a precision approach runway, the electrical circuits for the main power supply, lighting and control shall be so designed that the failure of one circuit shall not leave the pilot without visual guidance or shall result in a misleading pattern.” Different control
23、and monitoring systems of airfield lighting exist nowadays. This is why the need appeared to define their general characteristics or requirements in order to guarantee compatibility between systems. 1 Scope This prestandard specifies general requirements for control and monitoring system of aviation
24、 ground lighting installation. The purpose of this prestandard is to provide a set of requirements which are applicable to the control and monitoring system of aviation ground lighting installation. 2 Normative references This prestandard incorporates by dated or undated reference, provisions from o
25、ther publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this prestandard only when incorporated in it by amendment or rev
26、ision. For undated references the latest edition of the publication referred to applies. ENV 50231, Aviation ground lighting electrical installation Constant current regulator: Equipment specifications and tests. ICAO, International standards and recommended practices Aerodromes Annex14 to the Conve
27、ntion on International Civil Aviation, Volume1 and 2, Aerodrome Design and Operations (Issued by International Civil Aviation Organisation). 3 Definitions For the purposes of this prestandard the following definitions apply, as well as those given in ICAO Annex14. 3.1 ATC system Air Traffic Control
28、system is located in the control tower. It provides to the controllers information and help for control and monitoring airfield aerodrome lightings circuits, radionavigation circuits and others 3.2 visual aids system the visual aid system used for navigation consists of indicators and signalling dev
29、ices, markings, lights signs and markers on airfield 3.3 CCR CCR is the Constant Current Regulator. It is used to provide a constant current in aerodrome lighting circuits 3.4 RVR the Runway Visual Range is the range over which the pilot of an aircraft on the centerline of a runway can see the runwa
30、y surface markings or the lights delineating the runway or identifying its centre line 3.5 instrument runway CAT I, II and III classifications of the runways intended for the operation of aircraft using instrument approach procedures category I, II III: instrument runway served by radionavigation ai
31、ds called “ILS and/or MLS” and visual aids intended for operations down to specific limit heights and limit RVR. Category I requires less equipment (visual and radionavigation aids) than Category IIIENV50230:1997 4 BSI 04-1999 4 General The control and monitoring system for the airfield lighting sys
32、tem should be considered as a part of the visual aids system, and consequently should be addressed like a component of the ATC system. Therefore design and workmanship of such a system should fulfil the high requirements for availability and fail safe operation. Besides keeping the controller worklo
33、ad in a reasonable level, the system should be a powerful tool for the organisation of preventive maintenance to increase the availability of the airfield lighting system. There should be a control and monitoring system: a) Suitable for every airport complexity and particular needs, and adaptable to
34、 changes in the airport physical characteristics (layout, installations, etc.) or in the airport procedures. It means a system designed on a modular basis. b) Having a conception inspired by safety, allowing for the redundancy of equipment or elements that prove crucial from a safety point of view.
35、c) With a high degree of reliability and availability. d) Capable of data exchange with related systems. These system descriptions contain only the functions and minimum requirements of a control and monitoring system independent from a particular hardware solution. The hardware design of a system s
36、hould follow the individual needs of an airport and should also be in accordance with the latest state of the technology. 5 Overview of the control and monitoring system Figure 1 shows an overview of the control and monitoring system with the peripherals and interfaces to the related systems. In the
37、 centre of this diagram the control and monitoring system is placed. Around this circle the operators, components and systems are arranged which are linked to the control and monitoring system. The arrows show the direction and also a short description of the data flow. Possible or necessary links b
38、etween the peripherals themselves or to other systems are not subject of this description and are not shown in the diagram. The peripherals for a basic system are: a) Human machine interface (HMI) for the controller. That could be the controller at the tower but also controller at the apron control
39、or other controller working positions at the airport, which are able and allowed to switch the airfield lighting system. The HMI provides also the certain relevant status information for the controller. b) HMI for the maintenance staff at the airport. c) Status protocol devices such a storage device
40、 and or protocol printer or other components that store the time and sequence of alarms and status informations. d) Interface to the CCRs and other control units (for example: sequence flash light control unit, circuit selector, contactor, etc.) but may include devices that only provide indications
41、(forexample: power generator, fuel level indications, etc.). Dependent on the configuration and requirements of an airport the control and monitoring system may provide the additional interfaces as an option: a) Interface for information interchange with airport systems such as aircraft docking syst
42、ems, building management systems or commercial systems. b) Interface to the ATC-system for command inputs (for example: actual CAT I, II, III information) and information output about the status of the airfield lighting system. c) Interfaces for additional monitoring devices for the supervision of t
43、he actual condition of the airfield lighting system components (for example: lamp operation monitoring, insulation measurement, hour meter, etc.). d) Interface for control signals from-field sensors. e) Interface to meteorological system to provide the runway visibility range (RVR). f) Interface to
44、a surface movement guidance and control system (SMGCS) for command inputs and information output about the status of the airfield lighting system.ENV50230:1997 BSI 04-1999 5 Figure 1 Overview diagram for the control and monitoring systemENV50230:1997 6 BSI 04-1999 6 Basic functions of a control and
45、monitoring system 6.1 Controller working places The controller working places are the main human machine interfaces (HMI) of the system to control the airfield lighting system and to display the actual operational status and alarms. The main objectives for the design for the HMI are to keep the cont
46、roller workload at a reasonable level and to allow the controller to select a command input and system to provide an accurate status output. To fulfil these requirements the functions of the HMI should provide only the functions and information that are necessary. All functions for maintenance and a
47、ll technical detail information should be directed directly to the maintenance working place. The number and the location of the working places are dependent on the configuration and requirements of the airport. Also the work share and hand over between different working places could be different. I
48、f there is more then one working place provided for the same lighting systems, the control and monitoring system should make sure that only one working place is active for command inputs at the same time. Every working place (active or inactive) should be capable of displaying the accurate status of
49、 the related airfield lighting systems. 6.1.1 Command input at the controller working places The basic requirements for input interfaces are: a) clear layout and sufficient dimensions to support simple and safe handling b) separate control elements for the ON, OFF and intensity setting for systems or groups of systems c) control elements for each runway to switch over the landing direction d) interface display test facility e) control element for alarm reset (to confirm new alarms and reset the audible signal) f) manual or automatic dimmer for the brightness o
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