1、STD-BSI BS EN 32325-2-ENGL 3999 lb24bb9 0832937 236 I BRITISH STANDARD Irrigation techniques - Centre pivot and moving lateral systems - Part 2: Minimum performances and technical characteristics The European Standard EN 12325-2:1999 has the status of a British Standard ICs 6.060.35 NO COPYING WITHO
2、UT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 12325-2: 1999 STD-BSI BS EN 32325-2-ENGL 1977 Lb2LibbS 0832938 172 W 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 BS EN 1
3、2325-2:1999 Comments National foreword This British Standard is the English language version of EN 123252:1999. The UK participation in its preparation was entrusted to Technical Committee AGEXO, Irrigation and drainage equipment, which has the responsibility to: - aid enquirers to understand the te
4、xt; - present to the responsible European committee any enquiries on the - monitor related internationa and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UK A list of organizations represented on this committee can be ob
5、tained on request to its secretary. Cross-references The British Stanards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Smards Correspondence Index“, or by using the “Find faci
6、lity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all 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 obliga
7、tions. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. O BSI 11-1999 ISBN O 580 35371 O EUROPEAN STANDARD NORME EUROPENNE
8、 EUROPISCHE NORM EN 123252 August 1999 ICs 65.060.35 English version Irrigation techniques - Centre pivot and moving lateral systems - Part 2: Minimum performances and technical characteristics Techniques dirrigation - Installations avec pivots et rampes frontales - Partie 2: Peronnances et caractri
9、stiques techniques minimales Bewssetungsverfahren - Kreis- und Linearberegnungsverfahren - Teil 2: Minclestanfordenmgen und technische Kennwerte This European Standard was approved by CEN on 8 July i999 CEN members are bound to comply with the CEWCENELEC Intemal Regulations which stipulate the condi
10、iions 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 Central Secretariat or to any CEN member. This European Standard exists in three
11、official versions (English, French, German). A version in any other language made by translation under the responsibii o1 a CEN member into its own language and notified to the Centrai Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria,
12、 Belgium, Czech Republic, Denmark, Finland, France, Getmany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMI7TEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Central Secretar
13、iat: rue de Stassart, 36 8-1050 Brussels Q 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12325-23999 E STD.BSI BS EN 12325-2-ENGL 1999 W lb24bb9 0812940 820 Page 2 EN 12325-211 999 Contents Foreword 3 scope 4 Normative refer
14、ences 4 Terms and definitions . 5 Performances and mechanical characteristics 5 Electrical performances 7 Sprinkling devices . 8 Particular case of movable machines . 9 Hydraulic performances . 8 Marking . 10 Annex A (normative) Annex B (normative) Annex C (normative) Annex D (normative) Stability v
15、erification calculation rules for an irrigating lateral 11 Classification of PE pipes usable for movable machines . 13 Fixation plates . 15 Scheme of the pivot point of a centre pivot 14 QBSI 11-1999 STD.BS1 BS EN 12325-2-ENGL 1979 1b2qbb 081291iL 7b7 M Page 3 EN 12325-2:1999 Foreword This European
16、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 by endorsement, at the latest by February 2000, and c
17、onflicting national standards shall be withdrawn at the latest by February 2000. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, Franc
18、e, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Within its programme of work, Technical Committee CENTTC 334, Irrigation techniques, charged working group CEWC 334MIG 2, Centre pivot and moving laterals, to pr
19、epare the following standard: - EN 12325-2, Irrigation techniques - Centre pivot and moving lateral systems - Part2: Minimum performances and technical characteristics. The other standards concerning the irrigation techniques are: - EN 12325-1 , Irrigation techniques - Centre pivot and moving latera
20、l systems - Part 1; Presentation of the technical characteristiks; - EN 12325-3, Irrigation techniques - Centre pivot and moving lateral systems - Part 3: Terminology and classification; prEN IS0 1 1545, Agricultural irrigation equipment - Centre-pivot and moving lateral irrigation machines with spr
21、ayer or sprinkler nozzles - Determination of uniformity of water distribution (ISO/DlS 1 1545: 1999). - QBSI 11-1999 Page 4 1 Scope EN 12325-2:1999 This European Standard defines and specifies the minimum performances of the machines. It gives a minimum quality level to which the manufacturers shall
22、 refer to. It takes into account the mechanical, electrical, hydraulic and agronomic aspects. This standard is to be applied to fixed and movable centre pivots as well as to the different categories of moving laterals. This standard doesnt deal with safety problems; those aspects are treated in EN 9
23、09. This standard doesnt deal with specific problems for impact on environment. 2 Normative references 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 publication
24、s are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to the European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 292-2:1991, Safe
25、ty of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications. ENV 1991 -2-4, Eurocode 1: Basis of design and actions on structures - Part 2-4: Actions on structures - Wind actions. EN 60204-1, Safety of machinery - Electrical equipment of machines
26、 - Part 1: General requirements (IEC 60204-1:1997). EN 909, Agricultural and forestry machinery - Centre pivot and moving lateral types irrigation machines - Safety. ENV 1993-1 -1lA2, Eurocode 3: Design of steel structures - Part l-l/A2: General rules and rules for buildings - Annexes G, Hl J revise
27、d, N and Z. EN 12324-2:1999, Irrigation techniques - Reel machine systems - Part 2: Specifications of polyethylene tube for reel machines. EN 12325-1 :1998, Irrigation techniques - Centre pivot and moving lateral systems - Part 1 : Presentation of the technical characteristics. EN 12325-3, Irrigatio
28、n techniques - Centre pivot and moving lateral systems - Part3: Terminology and classification. prEN IS0 1 1545:1999, Agricultural irrigation equipment - Centre-pivot and moving lateral irrigation machines with sprayer or sprinkler nozzles - Determination of uniformity of water distribution (ISO/DIS
29、 1 1545: 1999). IS0 7749-1 :1995, Agricultural irrigation equipment - Rotating sprinklers - Part I: Design and operational requirements. IS0 8026: 1 995, Agricultural irrigation equipment - Sprayers - General requirements and test methods. IS0 8224-2, Traveller irrigation machines - Part 2: Softwall
30、 hose and couplings - Test methods. IS0 8779: 1 992, Polyethylene (PE) pipes for irrigation laterals -Specifications. IS0 1 2374 , Agricultural irrigation - Wiring and equipment for electrically driven or controlled irrigation machines. IS0 1461 , Hot dip galvanized coatings on fabricated iron and s
31、teel articles - Specifications and rest methods. Q BSI 11-1999 STD.BSI BS EN 12325-2-ENGL 1999 D lb24bb9 0812943 53T Page 5 IS0 14713, Protection against corrosion of iron and steel in structures - Zinc and aluminium coatings - Guidelines. EN 12325-2 1 999 3 Terms and definitions For the purposes of
32、 this European Standard, the following terms and definitions of EN 12325-3 apply together with the relevant units. In this standard, the term “treated against corrosion“ signifies that the protection provided is equivalent to galvanization. 4 Performances and mechanical characteristics 4.1 Structure
33、 4.1.1 Flagstone characteristics (9): Drawing, position and characteristics of iron reinforcements including concrete dosage shall be given. The flagstone shall top natural soil level of 0,2 m. Possible leaks shall be able to be evacuated out of the flagstone. Pivot point (see annex C) Water supply
34、(12): It shall be ensured by a tight, accessible and easily removable device. Vertical pipe: - the pipe diameter of the mobile pari (1 1) shall be greater than or equal to the pipe diameter of the first span and have a wall thickness superior or equal to the machine pipe one; the fixed (13) or mobil
35、e (1 1) part shall be easily removable in order to change water tightness joint(s) (3); when the vertical pipe is equipped with lubricators there shall be a minimum of two diametrically opposed; - - - in case of internal wire supply the bearing surface of joint (8) performing water tightness of coll
36、ector ring supply (1) shall be in stainless material or treated against corrosion. Elbows: - - bending radius of elbows (2 and 7) shall be at least equal to 3 times the pipe diameter; in the case where the elbows is made up of several sections of straight pipe, adjacent pipe axes shall have an angle
37、 greater than or equal to 135“. Height from the ground of first span connection: It shall comply with the minimum height under structure announced in the description (See “a“ on Figure 1 of EN 12325-1 :1998). Pressure switch: It shall be easily removable and shall be positioned in an accessible plac
38、e. Pressure gauge: It shall be mounted on a 3 ways valve in order to perform draining and disconnection, at a height between 1 m and 2 m from the flagstone. End gun control: If the control is performed by wedges or thrusts, the wedges and thrusts shall be rigid and rigidly fixed on pivot point at a
39、minimum height of 2 rn. 4.1.2 Towers and spans 4.1.2.1 Structure and pipe stability The stability of a span shall be verified using the calculation note given in annex A. QBSI 11-1999 STD=BSI BS EN 12325-2-ENGL 1999 1b24bb9 OB12944 47b = Page 6 The loading cases shall be considered for a machine wit
40、h and without water as specified in EN 909. EN 12325-211 999 4.1.2.2 Towers Resistance to lateral efforts: The tower shall withstand lateral efforts of 1 O00 daN, as specified in annex A. On each tower at the lowest point of the pipe a valve or other equivalent device shall be placed. On the last to
41、wer at the lowest point of the pipe a sand trap or other equivalent device, minimum diameter 100 mm shall be mounted to catch impurities. 4.1.2.3 Pipe sprinkling outlets The minimum diameter of pipe perforations shall be 15 mm. The perforation of the span?s pipe shall have a minimum surface of 150 m
42、m2 and to be exempt of wire edges in order to limit corrosion attacks. 4.1.2.4 Hydraulic linkage between spans The device performing water tightness between the pipes of adjacent spans shall comply with EN 909. Bolts and nuts used shall be made of anti-corrosion treated steel. 4.2 Motorization 4.2.1
43、 Electric gear motors When it is external to the motor the electrical connecting box and its closing device shall be made of stainless or treated against corrosion materials. A device allowing the fixation of a protection gear case will be provided. The fixation plate shall conform to the scheme giv
44、en in Figure D.1. In the case of a single motor on each tower, it shall be centred on the tower frame (cardan shafts of same length). The outlets of the reducer shall have a diameter of 25,4 mm - inflation pressure required shall be indicated on the rim in kPa. The tyre valve shall be protected agai
45、nst pulling out by a device locked with the rim. 4.4 Structure and bolt-and-nut protection The different metallic elements shall be galvanized in accordance with IS0 14713, and the galvanization shall comply with IS0 1461 standard specifications. If other protection methods are chosen they shall pro
46、vide performances equivalent to galvanization. 5 Electrical performances 5.1 General The basic standards will be IS0 12374, EN 60204-1 and EN 909. 5.2 Electrical cables The pipe shall be equipped with cable fixation devices protected against corrosion and UV radiation. Cables used to supply power fr
47、om the tower boxes to the gear motors shall be protected against: friction, impacts, UV radiation and shall be fixed on tower structure elements. 5.3 Plugs and connectors The plugs and connectors shall meet the minimum requirements of EN 292-2. 5.4 Boxes and panels a) Main control panel box: It shal
48、l conform to the description given in EN 909. The panel shall include a device allowing water supply stopping in case of a safety problem; b) Tower boxes: They shall conform to the description given in EN909. They shall be built in a material chosen for its resistance to ageing. The fixation plate s
49、hall be made of stainless or treated against corrosion materials. They will be placed such that the maximum horizontal distance from tower vertical axis is less than 0.3 m. 5.5 Alignment devices The parts outside the box and the fixation plate shall be constructed with a stainless or protected against corrosion material, protected against unintentional damage risks. 5.6 Collector ring All the external pieces of the collector ring shall be protected against corrosion. QBSI 11-1999 STD.BS1 BS EN L2325-2-ENGL 1997 = lb24bb 081294b 249 M Page 8 5.7 Booster pump EN 12325-2:1999 It
