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1、DRAFT FOR DEVELOPMENT DD IEC/TS 62257-6:2005 Recommendations for small renewable energy and hybrid systems for rural electrification Part 6: Acceptance, operation, maintenance and replacement ICS 27.160; 27.180 ? Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 0
2、3:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 62257-6:2005 This Draft for Development, was published under the authority of the Standards Policy and Strategy Committee on 12 January 2006 BSI 12 January 2006 ISBN 0 580 46727 9 National foreword This Draft for Development reproduces ver
3、batim IEC/TS 62257-6:2005. 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 there has been no consensus that this document should be published as a “full” standard. It should be
4、 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 that UK experience can be reported to the international organization responsible for the Technical Specifi
5、cation. A review of this publication will be initiated not later than 3 years after its publication by the international organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an announcement in the app
6、ropriate issue of 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 an international standard, to extend the life of the Technical Specification for another 3 years or to withdraw it.
7、Comments should be sent in writing to the Secretary of BSI Technical Committee GEL/82, Solar photovoltaic energy systems, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appropriate revision of the t
8、ext. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards
9、 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Summary of pages This document compris
10、es a front cover, an inside front cover, the IEC/TS title page, pages 2 to 17 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London
11、 South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TECHNICAL SPECIFICATION IEC TS 62257-6 First edition 2005-06 Recommendations for small renewable energy and hybrid systems for rural electrification Part 6: Acceptance, operation, maintenance and replacement Refer
12、ence number IEC/TS 62257-6:2005(E) DD IEC/TS 62257-6:2005 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 62257-6:2005 2 CONTENTS INTRODUCTION.3 1 Scope 4 2 Normative reference .4 3 Terms and definiti
13、ons .4 4 General aspects .5 4.1 Introduction to AOMR actions 5 4.2 Conditions impacting AOMR actions and guidelines8 4.2.1 Characteristics of the project/systems to be managed.8 4.2.2 Organization of AOMR personnel and responsibilities .8 4.2.3 Needed technical capabilities of AOMR participants10 4.
14、3 Training.10 5 Rules for systems.11 5.1 System identification and operational data record keeping11 5.2 Organizational issues 11 5.2.1 System limit definition of the AOMR domain11 5.2.2 Planning of AOMR actions11 5.2.3 Traceability of AOMR actions .12 5.3 Technical issues12 5.3.1 Electrical safety
15、.12 5.4 Acceptance issues.13 5.5 Recommended practices for intervention13 5.6 Maintenance actions13 5.7 Replacement factors14 5.8 Analysis of the conformity of the delivered service to the contractual commitments.15 6 Rules for electric equipment15 6.1 General aspects 15 6.2 Specific aspects related
16、 to electric equipment 15 6.2.1 Acceptance test .16 6.2.2 Recommended practices for intervention 16 6.2.3 Maintenance actions 16 6.2.4 Replacement factors 16 Table 1 AOMR actions .6 Table 2 System acceptance process description.7 Table 3 AOMR participant involvement.9 Table 4 Levels of skill for saf
17、ety .10 Table 5 Levels of general skill10 Table 6 Maintenance actions planning (example)12 Table 7 Voltage domains12 Table 8 Verification of the adherence to commitments 15 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Cop
18、y, (c) BSI 3 DD IEC/TS 62257-6:2005 INTRODUCTION The IEC 62257 series intends to provide to the different players involved in rural electrification projects (such as project implementers, project contractors, project supervisors, installers, etc.) documents for the setting-up of renewable energy and
19、 hybrid systems with a.c. nominal voltage below 500 V, d.c. nominal voltage below 750 V and nominal power below 100 kVA. These documents are recommendations: to choose the right system for the right place; to design the system; to operate and maintain the system. These documents are focused only on
20、rural electrification concentrating on but not specific to developing countries. They must not be considered as all inclusive to rural electrification. The documents try to promote the use of renewable energies in rural electrification; they do not deal with clean mechanisms developments at this tim
21、e (CO2 emission, carbon credit, etc.). Further developments in this field could be introduced in future steps. This consistent set of documents is best considered as a whole with different parts corresponding to items for safety, sustainability of systems and at the lowest life cycle cost as possibl
22、e. One of the main objectives is to provide the minimum sufficient requirements, relevant to the field of application that is: small renewable energy and hybrid off-grid systems. The purpose of this technical specification is to propose a methodology to achieve the best technical and economic condit
23、ions for acceptance, operation, maintenance and replacement of equipment and complete system life cycle. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 62257-6:2005 4 RECOMMENDATIONS FOR SMALL RENEWA
24、BLE ENERGY AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION Part 6: Acceptance, operation, maintenance and replacement 1 Scope This technical specification is intended to describe the various rules to be applied for acceptance, operation, maintenance and replacement (AOMR) of decentralized rural electri
25、fication systems (DRES) which are designed to supply electric power for sites which are not connected to a large interconnected system, or a national grid, in order to meet basic needs. The majority of these sites are: isolated dwellings; village houses; community services (public lighting, pumping,
26、 health centers, places of worship or cultural activities, administrative buildings, etc.); economic activities (workshops, micro-industry, etc.). It proposes a methodology to achieve the best technical and economic conditions for accept- ance, operation, maintenance and replacement of equipment and
27、 complete system life cycle. It does not substitute for technical manuals provided by manufacturers for each equipment. The complexity of the system and application will dictate the level of required AOMR documentation. 2 Normative reference The following referenced documents are indispensable for t
28、he 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. IEC 62257 (all parts) Recommendations for small renewable energy and hybrid systems for rural electrificati
29、on 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 AOMR actions acceptance, operation , maintenance and replacement actions 3.2 implementation contract contract between project developer and project implementer usually the result of a competi
30、tive sollicitation for proposals developed by the project developer on the basis of the general specification Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 DD IEC/TS 62257-6:2005 3.3 electric equipment item
31、 used for such puposes as generation, conversion, transmission, distribution or utilization of electric energy, such as electric machines, transformers, switchgear and controlgear, measuring instruments, protective devices, wiring systems, current-using equipment IEV 826-16-01. 3.4 REN renewable ene
32、rgy 4 General aspects 4.1 Introduction to AOMR actions Isolated electrification systems are designed to supply power to those individuals, communities or loads located in remote areas not connected to national grids. These systems can be broken down into three categories: process electrification sys
33、tems (for instance for pumping), individual electrification systems (IES) (single user, load or application), collective electrification systems (CES) (multiple user load or application). In order to satisfy the various energy requirements both in terms of quality and quantity, six types of isolated
34、 micropower systems have been identified (see IEC 62257-2). AOMR actions are introduced in Table 1. A basic system acceptance process description is given in Table 2. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c)
35、 BSI DD IEC/TS 62257-6:2005 6 Table 1 AOMR actions Acceptance checking process to ensure that the system installation meets the requirement set forth in the implementation contract between the project developer and the project implementer testing process to ensure that the micropower system operates
36、 according to the functional part of the implementation contract once the parties have come to agreement, transfer the responsibility of the system Operation managing business of system operation monitoring normal system operation (“normal“ operation = system supplies power complying with all the ch
37、aracteristics of the expected service, with the original designed configuration) managing system electrical operation = executing actions on electrical circuits (configuration changes) response to abnormal operating conditions = to provide service outside of the boundaries of the implementation cont
38、ract (prolonged absence of REN sources) response to abnormal system operation corrective actions (manual or automatic), troubleshooting and repair system or system components (diagnosing the cause(s) for failure fault finding = to service the plant and restore its operating conditions further to an
39、unpredictable failure guaranteeing safety while performing (servicing) actions on the plant performing analysis and retrofit of the system to account for new operating conditions Maintenance preventive maintenance: keeping and maintaining the system to its normal operating state corrective maintenan
40、ce: adjusting, fixing or replacing components after fault recognition conducting periodic tests and inspection Replacement replacing the equipment on normal life cycle completion replacing the equipment for upgrading purpose dismantling and recycling at end of life cycle Licensed Copy: London South
41、Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Table 2 System acceptance process description Acceptance process Objective Responsible Party Implementers Content of a suggested data sheet Phase 1 Preparation To collect all information on
42、the system Project implementer Project implementer/ subcontractor List of contractual documents to be provided Phase 2 Check of existing documentation, contract clauses To check that all non operational contractual requirements are met: Documentation, manuals, spare parts, drawings, procedures, warr
43、anty contracts, etc. Project developer Consultant engineer List of contractual documents to be provided Phase 3 Commissioning step 1: Evaluation of the conformity of the installed system with the accepted design To check that the equipment complies to the contractual accepted design and any differen
44、ces are explained Project developer Consultant engineer Equipment list: Initial design list/as built list/comments Commissioning step 2: Evaluation of qualification of the installation To check that the system is ready to be operated Project implementer Project implementer/ subcontractor Letter Comm
45、issioning step 3: Preliminary tests To test that the system components operate correctly Project developer Consultant engineer Component by component, verification: Proper type and reference according to the as built list Proper installation: check list of key points Proper operation: list of tests
46、with targeted performances to be obtained Commissioning step 4: Performance testing To check all the operating performances of the whole system Project developer Consultant engineer List of system tests with targeted performances to be obtained Phase 4 Agreement Transfer of responsibility Project im
47、plementer/ developer/ operator/ owner Letter of acceptance DD IEC/TS 62257-6:2005 7 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:51:08 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC/TS 62257-6:2005 8 4.2 Conditions impacting AOMR actions and guidelines
48、4.2.1 Characteristics of the project/systems to be managed Characteristics of systems and their installation environment will have an influence on the organizational schemes to perform AOMR actions. Among these influence factors the following are highlighted: geographical layout: number of systems,
49、their location and dispersion will determine spare parts and tool requirements, technician and equipment transportation means, mean time to repair and perhaps methodology for collecting money; systems size and technology will have an influence on the maintenance program, the skill level of technician, and final users involvement; the degree of mult