1、BRITISH STANDARD BS ISO 14269-3:1997 Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 3: Determination of effect of solar heating ICS 65.060.01BSISO14269-3:1997 This British Standard, having been prepared under the direction of the Engineering Sec
2、tor Board, was published under the authority of the Standards Board and comes into effect on 15 May 1998 BSI 04-1999 ISBN 0 580 29853 1 National foreword This British Standard reproduces verbatim ISO 14269-3:1997 and implements it as the UK national standard. The UK participation in its preparation
3、was entrusted to Technical Committee AGE/6, Agricultural tractors and forestry machinery, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK i
4、nterests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications r
5、eferred 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 Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of
6、 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 inside front cover, page i and ii, theISOtitle page, page ii
7、, pages1 and 2 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 CommentsBSISO14269-3:1997 BSI 04-1999 i Contents P
8、age National foreword Inside front cover Foreword ii 1 Scope 1 2 Normative reference 1 3 Definitions 1 4 General 1 5 Measurement of solar radiant energy during field tests 1 6 Method of simulating solar radiant energy during laboratory tests 1 7 Calibration of solar radiant energy from a simulated s
9、ource 1 Figure 1 Area of uniform intensity 2ii blankBSISO14269-3:1997 ii BSI 04-1999 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out thr
10、ough ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collabo
11、rates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by a
12、t least75% of the member bodies casting a vote. International Standard ISO 14269-3 was prepared by Technical Committee ISO/TC23, Tractors and machines for agriculture and forestry, Subcommittee SC2, Common tests. This first edition, along with the other parts of ISO 14269, cancels and replaces ISO 3
13、737:1976, ISO 6097:1989 and ISO/TR 8953:1987, which have been technically revised. ISO 14269 consists of the following parts, under the general title Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment: Part 1: Vocabulary; Part 2: Heating, ventilation and
14、 air-conditioning test method and performance; Part 3: Determination of effect of solar heating; Part 4: Air filter element test method; Part 5: Pressurization system test method. Descriptors: Agricultural machinery, forest equipment, self-propelled machines, agricultural tractors, operating station
15、s, operator enclosures, environments, working conditions, solar heating, tests, performance tests.BSISO14269-3:1997 BSI 04-1999 1 1 Scope This part of ISO 14269 specifies a test method for simulating solar heating in the laboratory and measuring the radiant heat energy from a natural or simulated so
16、urce. This standard is applicable to tractors and self-propelled machines for agriculture and forestry when equipped with an operator enclosure. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this part of ISO14269. At
17、the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this part of ISO14269 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain
18、 registers of currently valid International Standards. ISO 14269-1:1997, Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 1: Vocabulary. 3 Definitions For the purposes of this part of ISO 14269, the definitions given in ISO14269-1 apply, of which
19、the following are particularly relevant. 3.1 solar heating heating factor from the sun to be considered in determining air circulation and cooling requirements necessary to maintain comfortable temperature inside the operator enclosure ISO 14269-1:1997, definition 2.18 3.2 solar radiant energy proce
20、ss by which solar heating is generated ISO 14269-1:1997, definition 2.19 4 General 4.1 The intended result of this method is to record the radiant heat energy affecting an operator enclosure during tests of the air-conditioning system. 4.2 This method should be used in conjunction with the test give
21、n in ISO 14269-2:1997, Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 2: Heating, ventilation and air-conditioning test method and performance. 5 Measurement of solar radiant energy during field tests 5.1 Place an appropriate measuring device su
22、ch as a pyranometer, with an accuracy of 3% of the observed values, in the same general area as the operator enclosure under test. Measure the radiance at10min intervals during the test period. These readings shall be averaged and recorded as part of the reported results. 5.2 A measured average sola
23、r radiant energy of950W/m 2 95 W/m 2is considered “normal” test conditions. 6 Method of simulating solar radiant energy during laboratory tests 6.1 Place the lamps in banks above the operator enclosure being tested and in a horizontal plane. 6.2 The area within the perimeter of the light banks shall
24、 extend25% beyond the projected area of the operator enclosure under test when measured in all four directions. 6.3 In order to simulate the effects of solar heating, the light source shall have45% or more of its radiated energy above700nm. It is recommended that the method of controlling the intens
25、ity not change the spectral distribution of the lamps. 7 Calibration of solar radiant energy from a simulated source 7.1 Mount a pyranometer on a tripod and maintain it on a horizontal plane. 7.2 The plane of measurement shall be 100mm 100mm lower than the roof line of the operator enclosure under t
26、est. 7.3 Take readings at points on or within the perimeter of the area of uniform intensity as shown in Figure 1. Make sufficient measurements to ensure uniformity. The maximum distance between measuring points shall be1200 mm. 7.4 The intensity level shall be adjusted to an average of950 W/m 2 95
27、W/m 2 . No individual reading shall vary by more than10% from the average. 7.5 The intensity level shall be recalibrated every six months or every time the elevation of the roof line of the operator enclosure being tested is changed.BSISO14269-3:1997 2 BSI 04-1999 NOTEx and y are dimensions of the l
28、argest enclosure to be tested. Figure 1 Area of uniform intensity3 blankBS ISO 14269-3:1997 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at t
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