1、BRITISH STANDARD Irrigation techniques - Centre pivot and moving lateral systems - Part 3: Terminology and classification The European Standard EN 1232531999 has the status of a British Standard ICs 01.040.65; 65.060.35 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 123
2、25-31999 STD-BSI BS EN 12325-3-ENGL 1999 W Lb24bb 08053b3 70b BS EN 123253:1999 direction of the Engineering Amd.No. Date Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 National foreword Comments This British Standard is the E
3、nglish language version of EN 1232531999. The UK participation in its preparation was entrusted to Technical Committee AGW30, Irrigation and drainage equipment, which has the responsibility to: - aid enquirers to understand the te% - present to the responsible European committee any enquiries on the
4、 - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed them in the UK A iist of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standar
5、ds which implement international or European publications referred to in this document 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 Standars Elech-onic Catalogue. A British Standard do
6、es not purport to include ali the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an ins
7、ide hnt cover, the EN titie page, pages 2 to 8, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued O BSI 11-1999 1 I ISBN O 580 35372 9 STDmBSI BS EN 12325-3-ENGL 1979 1624bb9 0805364 642 EUROPEAN STANDARD NORME EURO
8、PENNE EUROPISCHE NORM EN 12325-3 August 1999 - ICs 01.040.65; 65.060.35 English version Irrigation techniques - Centre pivot and moving lateral systems - Part 3: Terminology and classification Techniques dirrigation - Installations avec pivots el rampes frontales - Partie 3: Terminologie et classifi
9、cation Bewssemngsverfahren - Kreis- und Linearberegnungsmaschinen - Teil 3: Terminologie und Klassifizierung This European Standard was approved by CEN on 8 July 1999. CEN members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European St
10、andard 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 Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, Frenc
11、h, 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 Central Secretariat has the same status as the officiai versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denm
12、ark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretarlat: rue de Stassart, 36 8-
13、1050 Brussels (D 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12325-3:1999 E STD-BSI BS EN LZ3Z5-3-ENGL 1999 H 1624bb9 0805365 589 M Page 2 EN 1 2325-31 999 Contents Foreword 3 scope 4 Normative references 4 Quantities and
14、units 4 Terms relating to classification . 5 Terms relating to movements 6 Terms relating to electrlcal equipment . 7 Terms relating to hydraulic equipment . 7 Terms relating to machines identification 8 Terms relating to stnicture . 5 (QBSI 11-1999 STDoBSI BS EN 12325-3-ENGL 1999 m bb24bb9 08053bb
15、I15 W Page 3 EN 12325-31 999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 334, Irrigation techniques, 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 b
16、y endorsement, at the latest by February 2000, and conflicting national standards shall be withdrawn at the latest by February 2000. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
17、a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Within its programme of work, Technical Committee CENTTC 334, Irrigation techniques, charged working group CENi
18、C 334MIG 2, Centre pivot and moving laterals, to prepare the following standard: - EN 12325-3, Irrigation techniques - Centre pivot and moving /atera/s systems - fart 3: Terminology and classification. The other standards concerning the irrigation techniques are: - EN 12325-1, rrrigation techniques
19、- Centre pivot and moving laterals systems - fart 7: Presentation of the technical characteristics; EN 12325-2, Irrigation techniques - Centre pivot and moving laterals systems - Part 2: Minimum performances and technical characteristics; prEN IS0 1 1545, Agricultural irrigation equipment - Centre-p
20、ivot and moving lateral irrigation machines with sprayers or sprinkler nozzles - Determination of uniformity of water distribution (IS/DlS 1 1 545:1999). - - CDBSI 11-1999 Page 4 EN 12325-31999 1 scope This European Standard defines and specifies the different outstanding terms and classifications i
21、n the field of centre pivots and moving laterals systems, necessary for the understanding of EN 12325-1 and EN 12325-2. Quantities Lenath This standard is applicable to fixed and movable pivots, as well as to the different categories of moving laterals. International units used according to IS0 31-0
22、:1992 metre (m). millimetre (mm) 2 Normative references Mass Time This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated ref
23、erences, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. kilogram (kg), ton (t) second (s), minute (min), hour (
24、h) EN 12325-1 , Irrigation techniques - Centre pivot and moving laterals systems - Part 7: Presentation of the technical characteristics. Fiat angle Frequency Force Torque I EN 12325-2, Irrigation technques - Centre pivot and moving laterals systems - Part 2: Minimum performances and technical chara
25、cteristics. radian (rad), degree (“) hertz (Hz), kilohertz (kHz) Newton (N) Newton metre (Nm) Pascal (Pa), kiloPascal (kPa), meaaPascal hiPa) prEN IS0 1 1 S5:1999, Agricultural irrigation equipment - Centre-pivot and moving lateral irrigation machines with sprayer or sprinkler nozzles - Determinatio
26、n of uniformity of water distribution (ISO/DIS 1 1545: 1999). Speed IS0 31-0:1992, Quantities and units - Part O: General principles. metre per second (m/s), metre per hour (mW 3 Quantities and units The units used in the different parts of the EN 12325 are: Table 1 -Quantities and units I Electrica
27、l current I amoere A I I Power 1 watt (W), kilowatt (kW) I sauare metre (m2. hectare Iha (DBSI 11-1999 Page 5 EN 12325-31999 4 Terms relating to classification 4.1 Sprinkling lateral General concepts for centre pivots, moving laterals, movable pivots and mixed-pivot laterals designating one of the f
28、our systems defined below. 4.2 Centre pivot (fixed) Irrigation machine constituted of a long length pipe supported by towers equipped with wheels driven by motors, including a fixed or pivot point at which water and energy arrive. 4.3 Moving lateral Sprinkling lateral built on the same principal as
29、centre pivots, the displacement of which is lateral (translation motion). The control tower receives or pumps the water and receives or produces its own energy. 4.4 Movable pivot (self propelled, towable) Also built on the principle of a centre pivot, it is a machine characterized by its capability
30、to move without watering, in translation motion or longitudinally from a sprinkling position to the other. Each position is equipped with a water and energy supply device. 4.5 Mixed pivot lateral Machine able to cumulate the two functions of a centre pivot and a moving lateral, and thus to irrigate
31、either in rotation or in translation motion. 5 Terms relating to structure 5.1 Span Unit constituted by a tower and the main distribution pipe which is linked to it. NOTE Two types of structure can be found: bow string type structure and rectilinear girder type structure. 5.2 Distribution pipe Pipe
32、through which water is flowing. It is characterized by its outside diameter, wall thickness and length. NOTE It serves as a girder for the machine structure. 5.3 Truss mern bers Elements of structure supporting the pipe efforts and distributing them in the trusc-rods. NOTE The truss members work in
33、tension and in compression. They are constituted of 3 to 7 elements at any reinforcement point. They form a triangle in a perpendicular plan to the pipe, to insure the global stability (reversing) of the structure. 5.4 Truss-rod Metallic element working in tension and linking the different truss mem
34、bers points together. 0 BSI 11-1999 Page 6 EN 12325-31999 5.5 Tower Supporting device to which the span pipe is clutched and the next span leant. NOTE ensuring grip to the soil and movement. It also supports a tower box containing alignment and safety devices. It is shaped as a tdangle, perpendicula
35、r to the pipe. It is equipped with a motor and wheels or any other system 5.6 Overhang Part of pipe situated at the outer end of the machine. It is supported by the last tower and maintained by s h rouds . 5.7 Pivot point Fixed point from which the rotation of the whole machine is performed. It is c
36、haracterized by a structure fixed on a concrete flagstone leaving the machine free to rotate. NOTE Here feeding of water and energy are performed. 5.8 Vertical pipe Vertical part of the water supplying pipe, constituted of an element fixed to the flagstone and a moving element fixed to the sprinklin
37、g lateral. NOTE Water tightness is performed by a (several) sleeve joint(s). 5.9 Span coupling Device ensuring hydraulic and mechanical coupling between adjacent spans, or between the pivot point and the first span. 5.10 Control tower In the case of a movable system, it is the tower which initiates
38、the movement of the whole sprinkling lateral. NOTE them could be driving and possibly steering. It can be situated in the centre of the lateral or at one of the ends, and be equipped with 2 or 4 wheels, some of 5.11 Guiding tower Always for movable machines, it guides the lateral thanks to an alignm
39、ent device (buried cable, ditch cable, etc.) allowing it to be kept in a pre-established direction. NOTE This function is often performed by the control tower. 6 Terms relating to movements 6.1 Kinetic chain Constituted of a motor and gear reducers, generally fixed on the lower crossbar of the tower
40、, performing the moving function, its movement being transmitted to the wheels gear boxes. Q6S1 11-1999 STDoBSI BS EN L2325-3-ENGL L997 m lb24bb9 0805370 946 Page 7 EN 12325-3:1999 6.2 Speed control device Device controlling the average moving speed of the machine. It controls the functioning time o
41、f the last tower of the machine (centre pivot) or of the guiding tower (movable machines) during a cycle time of one minute generally. 6.3 Alignment device Device located in the tower box. Each one is constituted of two parts, each one being linked to one of the neighbouring spans. NOTE functions in
42、 case of misalignment. Micro-switches or any other devices perfom the stopping and starting of the towers gear motor, and safety 7 Terms relating to electrical equipment 7.1 Main control panel Electrical panel including all the controls of the machine, situated at the pivot point or on the control t
43、ower. NOTE than 500 V. It is separated into two circuits: the control circuit using low voltage, and the supplying circuit using voltages lower 7.2 Collector ring Device distributing electrical power to centre pivots functioning in complete circle, allowing electric power to be supplied whatever its
44、 movement is. 7.3 Senro-controls and safety devices All the safety controls and servo-controls (piloting of a dosing pump, stopping of pumping station in case of problem, etc.) of the machine are centralized in the main control panel. 8 Terms relating to hydraulic equipment 8.1 Head losses Sum of in
45、-pipe energy losses which appears as a decrease in the pressure available when the distance from the supply point increases. 8.2 Sprinklers Sprinklers are watering devices, fixed or rotating. NOTE 1 nozzle series (diameter, type), giving its own range of wetted radius and flow. Each sprinkler is cha
46、racterized by a maximum and minimum working pressure, an emission angle, its proper NOTE 2 regulating device (pressure, flow) and the possibility of coupling them to some accessories (upping tubes, hose pipes, etc.). A sprinkler can also be characterized by its connection device type to the main pip
47、e, the possibility of using a 8.3 End sprinkler Large sprinkler or a gun type sprinkler with a large wetted radius. NOTE additional energy can be used. When the residual pressure is insufficient at the end of the main pipe, a booster pump to give the necessary QBSI 11-1999 STDmBSI BS EN L2325-3-ENGL
48、 1779 Fge 8 8.4 Pressure or flow regulators EN 12325-3:1999 Devices maintaining pressure or flow at a stable level. W lb24bb9 0805373 882 m NOTE Such a device can be found either for sprinklers or for supplying pipes of the sprinkling laterals. 8.5 Noueling chart Synthesis document including all the
49、 information relative to hydraulic and rainfall functioning of the machine as specified in EN 12325-1. 8.6 Application rate or dose The height of water in rnm applied or received at a point during a sprinkler run. Its calculation mode is given in prEN IS0 11 545. 8.7 Uniformity of water distribution Quantified assessment of water distribution homogeneity relative to the surface during a sprinkling run. Its calculation mode is given in prEN IS0 1 1545. 8.8 Calculated rainfall intensity (Le. average rainfall intensity) The height of water applied at a point, exp
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