BS EN 15518-3-2011 Winter maintenance equipment Road weather information systems Requirements on measured values of stationary equipments《冬季维修设备 道路气象信息系统 固定设备的测量值要求》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 15518-3:2011Winter maintenanceequipment Road weatherinformation systemsPart 3: Requirements on measured values ofstationary equipmentsBS EN 15518-3:2011 BRITISH STANDARDNat

2、ional forewordThis British Standard is the UK implementation of EN 15518-3:2011.The UK participation in its preparation was entrusted to TechnicalCommittee B/513, Construction equipment and plant and site safety.A list of organizations represented on this committee can beobtained on request to its s

3、ecretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 65403 9ICS 07.060; 13.030.40; 35.240.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This Britis

4、h Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2011.Amendments issued since publicationDate Text affectedBS EN 15518-3:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15518-3 February 2011 ICS 07.060; 13.030.40; 35.240.99 English Versi

5、on Winter maintenance equipment - Road weather information systems - Part 3: Requirements on measured values of stationary equipments Matriels de viabilit hivernale - Systmes dinformation mtorologique routire - Partie 3: Exigences relatives aux valeurs mesures par des matriels fixes Winterdienstausr

6、stung - Straenzustands- und Wetterinformationssysteme - Teil 3: Anforderungen an gemessene Werte der stationren Anlagen This European Standard was approved by CEN on 1 January 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving th

7、is 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

8、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 Aust

9、ria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EURO

10、PEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15518-3:2011: EBS EN 15518-3

11、:2011EN 15518-3:2011 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Requirements .7Tables Table 1 Measurement requirements . 8BS EN 15518-3:2011EN 15518-3:2011 (E) 3 Foreword This document (EN 15518-3:2011) has been prepared by Technical Com

12、mittee CEN/TC 337 “Winter maintenance and road service area maintenance equipment”, the secretariat of which is held by AFNOR. 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 August 2011, and conf

13、licting national standards shall be withdrawn at the latest by August 2011. 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. EN 15518,

14、Winter maintenance equipment Road weather information systems, comprises of the following parts: Part 1: Global definitions and components Part 2: Road weather Recommended observation and forecast Part 3: Requirements on measured values of stationary equipments According to the CEN/CENELEC Internal

15、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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg

16、, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15518-3:2011EN 15518-3:2011 (E) 4 Introduction Road Weather Information Systems (RWIS) are complex structures used for road maintenance decision support, which featur

17、e as a rule the following components: meteorological sensors and instruments, transmission technology, computer systems for processing, representation and storing of information, road weather forecasts and alarms, in relation to traffic control and traffic information systems and more. Stationary eq

18、uipment performs the acquisition of road and meteorological information at a fixed location. This part of EN 15518 lays down the requirements for the recommended components of a stationary equipment of a RWIS. In the description of requirements a distinction is made between the components forming a

19、basis stationary equipment for winter use and the recommended complementary components. The aim is to ensure extensive combination and interchangeability within the systems. With a set terminology for the components and the meteorological expressions an attempt is made to counteract a diversity of t

20、erms and designations for identical phenomena. BS EN 15518-3:2011EN 15518-3:2011 (E) 5 1 Scope This European Standard specifies the terminology and performance requirements for all components of stationary equipment within a Road Weather Information Systems (RWIS). 2 Normative references The followi

21、ng referenced documents are indispensable for the application 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 15144:2007, Winter maintenance equipment Terminology Term

22、s for winter maintenance 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 15144:2007 and the following apply. NOTE The following definitions have been established specifically for the RWIS domain. 3.1 surface 3.1.1 pavement surface temperature effectiv

23、e radiation temperature of a pavement surface 3.1.2 road surface condition qualification of the status of road surface affected by road weather phenomenon 3.1.3 water film thickness mean thickness of the film of water present on a flat surface 3.2 aerial 3.2.1 relative humidity filling rate of the m

24、ass of air with water vapour NOTE It is determined in relation to water, in liquid phase, and recorded under a screen at a height between 1,5 m and 4,0 m from the ground. 3.2.2 precipitation exclusion of falling water from the atmosphere in liquid and/or solid form which can be observed and measured

25、 on ground 3.2.3 rain precipitation in liquid form BS EN 15518-3:2011EN 15518-3:2011 (E) 6 3.2.4 depth of precipitation thickness of the layer of water obtained by precipitation or deposit on a horizontal surface if the precipitations falling in solid form were to melt 3.2.5 depth of snow raw thickn

26、ess of snow deposited on the ground 3.2.6 intensity of precipitation depth of precipitations collected per unit of time 3.2.7 wind speed (instantaneous and mean wind) ratio of the distance travelled by the air, per unit of time 3.2.8 gust of wind brief, sudden increase in the speed of the wind in re

27、lation to its mean value 3.2.9 wind direction (instantaneous and mean wind) direction from where the wind is blowing with respect to the magnetic north 3.2.10 visibility distance defined by the meteorological optical range 3.2.11 total radiation solar radiation received by a horizontal surface from

28、the galactic centre, directed towards the ground, within a spectral range from 0,3 m to 3 m 3.2.12 atmospheric radiation high wavelength infrared radiation emitted by the atmosphere, within a spectral range from 4 m to 100 m 3.2.13 total cloud cover fraction of the galactic centre hidden by all of t

29、he visible clouds NOTE It is defined by the International Meteorological Code 2 700. It is expressed in octa corresponding to the eighth of the galactic centre occupied by the clouds. 3.3 general 3.3.1 screen shelter built in such a manner that it protects its contents against solar radiation, preci

30、pitations and condensation and contributes at the same time to ventilation 3.3.2 sampling interval time between two readings meant for the elaboration of a value BS EN 15518-3:2011EN 15518-3:2011 (E) 7 3.3.3 measurement interval time between two elaborated values 3.3.4 polling interval time between

31、two transmissions of elaborated values 4 Requirements The requirements hereafter apply to sensors in road conditions. However, the accuracy requirements are meant for laboratory testing. Sensor set-up, calibration and special handling shall be specified by the manufacturer. The first column of Table

32、 1 hereafter states “B” for parameters recommended in a basic configuration, and “O” for parameters considered as optional according to specific applications. a) Thermal resistance 1) sensors embedded in the pavement need to survive surface temperatures from 40 C to + 70 C; 2) equipment placed in th

33、e air need to survive air temperatures from 40 C to + 60 C. b) Chemical resistance All components of the road and weather information system installed on the pavement shall be resistant to the thawing agents and fuels to which roads are normally exposed. c) Mechanical resistance Sensors and other co

34、mponents embedded in the pavement shall withstand regular mechanical loads exerted by traffic, including rollovers by snow-clearing machines. d) Electro-magnetic resistance All components of the road and weather information system shall not be affected by conventional environing electro-magnetic con

35、ditions. The equipment defined under this standard shall be considered as “Industrial equipment”. BS EN 15518-3:2011EN 15518-3:2011 (E) 8 Table 1 Measurement requirements Parameters Requirements B Pavement surface temperature Measuring range: 30 C to + 60 C Resolution: 0,1 C Accuracy: 15 C to 10 C,

36、( 0,2 C) 30 C to 15 C, ( 0,8 C) and + 10 C to 60 C , ( 0,8 C) B Road surface condition Dry: no humidity over the sensor Moist: from (0,01 mm) water film thickness over the sensor Wet: from (0,2 mm) water film thickness over the sensor Streaming water: from (2 mm) water film thickness over the sensor

37、 Slippery: detection at least of the presence of partly or wholly solidified aqueous solution over the sensor O Water film thickness Measuring range: 0,2 mm to 3 mm Resolution: 0,01 mm Accuracy: 0,2 mm to 3 mm, ( 30 %) Specific averaging can be required by the customer. BS EN 15518-3:2011EN 15518-3:

38、2011 (E) 9 Table 1 (continued) Parameters Requirements B Freezing point temperature Measured: Measuring range: 30 C to 0 C Resolution: 0,1 C Accuracy: 0 C to 15 C, ( 0,5 C) 15 C to 30 C, ( 1,5 C) This requirement is independent of the de-icing agent being used. These accuracies are obtained under th

39、e following conditions: - Aqueous solution film thickness: 0,05 mm to 0,5 mm; - Measured from 4 C pavement surface temperature. Calculated Measuring range : 30 C to 0 C Resolution : 0,1 C Accuracy : 0 C to 2,5 C, ( 0,5 C) 2,5 C to 30 C, ( 20 %) This requirement depends on the de-icing agent being us

40、ed. These accuracies are obtained under the following conditions: - Aqueous solution film thickness: 0,05 mm to 0,5 mm; - Under defined and constant de-icing agent; - Measured from 4 C pavement surface temperature. O Road body temperature Measuring range: between 25 C and + 60 C Resolution: 0,1 C Ac

41、curacy: 1 C B Air temperature Measuring range: between 40 C and + 60 C Resolution: 0,1 C Accuracy: 0,1C between 10C and + 10C 0,5 C otherwise B Relative humidity Measuring range: at least between 30 % and 100 % Resolution: 1 % Accuracy: 3 % between 85 % and 100 % 5 % otherwise BS EN 15518-3:2011EN 1

42、5518-3:2011 (E) 10 Table 1 (continued) Parameters Requirements B Dew-point temperature Measured Measuring range: between 10 C and + 10 C Resolution: 0,1 C Accuracy: 0,3 C Calculated Measuring range: between 10 C and + 10 C and relative humidity 85 % Resolution: 0,1 C Accuracy: 1,5 C B Precipitation

43、detection time The following precipitation have to be detected in the following time:2 min: 1,2 mm/h 6 min: 0,4 mm/h 10 min: 0,1 mm/h B Precipitation type Distinction between solid and liquid precipitation with 80 % confidence within the above precipitation detection time O Precipitation intensity M

44、easuring range: between 0,1 mm/h and 200 mm/h Resolution: 0,1 mm/h Accuracy: 30 % of measured value between 0,1 mm/h and 0,5 mm/h 20 % of measured value between 0,5 mm/h and 5 mm/h 40 % of measured value above 5 mm/h The accuracy is given for liquid precipitation, when measured in a 10 min period. S

45、olid precipitation shall be expressed in terms of the rainfall equivalent. O Snow depth (measured at the RWIS site) Measuring range : 0 cm to 50 cm Resolution : 1 cm Accuracy : 2 cm O Snow depth (measured on the road surface) Measuring range : 0 cm to 50 cm Resolution : 1 cm Accuracy : 2 cm These re

46、quirements shall be adapted to the equipment able to perform this type of measurement. This information shall be representative of a given area. BS EN 15518-3:2011EN 15518-3:2011 (E) 11 Table 1 (continued) Parameters Requirements O Wind speed Measuring range: at least between 0 m/s and 35 m/s Resolu

47、tion: 0,1 m/s Accuracy: 1 m/s between 1 m/s and 10 m/s 10 % of measured value otherwise Starting value: 1 m/s The wind speed shall be specified as an average vector over a sliding time interval of 10 min. O Gust of wind Measuring range : between 0 m/s and 50 m/s Resolution : 0,1 m/s Accuracy : 1 m/s

48、 between 1 m/s and 10 m/s 10 % of measured value otherwise Starting value: 1 m/s The gust of wind is measured over a period of 5 s, 3 s being recommended. O Wind direction Measuring range : 0 to 359 Resolution: 1 Accuracy: 10 Starting value: 1 m/s at an initial deflection of 90 The wind direction sh

49、all be specified as an average vector over a sliding time interval of 10 min. O Visibility Measuring range : 10 m to 500 m Resolution : 10 m Accuracy : 10 m or 20 % of measured value, whichever is greater This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standards-related publ

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