PQS E03 PV1.2.doc - World Health Organization
Contents
1. Circuit breakers or fuses must be installed in the positive line near the battery and the fuse holder must be of non corroding material The fuse type and rating must be marked close to the fuse holder Ten spare fuses must be provided in a polyethylene bag fixed near to the fuse box Lightning surge protection Lightning surge protection must be provided for the photovoltaic array and other solar system components in accordance with the component manufacturer s requirements The protection circuit must be bonded to the photovoltaic array and to its support structure see clause 4 2 2 and to the battery and battery charge regulator set where this is required by the manufacturer Environmental requirements Ambient temperature range during transport and storage 30 C to 55 C when components are in transit Ambient temperature range during use Photovoltaic panels may be exposed to temperatures from 40 C to 90 C when mounted in their final positions Battery sets and battery charge regulators may be exposed to temperatures from 10 C to 43 C after installation and commissioning Ambient humidity range during transport and storage 5 to 95 non condensing PQS E03 PV1 2 doc 7 of 13 06 July 2010 4 3 4 4 4 4 4 1 4 4 2 4 5 4 5 1 4 6 4 6 1 4 6 2 4 7 4 7 1 Resistance to storm damage Photovoltaic panels and support structures must retain their physical and operational integrity throug2. The housing for flooded batteries must include protection against spilled electrolyte Battery charge regulator Note Applies to Type 1 system only The battery charge regulator must be sized for a DC current rating of at least 150 of the solar array short circuit rating The load disconnect current rating must be 200 of the maximum load current and must operate the refrigerator compressor under all starting load surge conditions The regulator is to use either varistor spark gap or surge protection The regulator must be pre set to suit the installed battery type Voltage regulation setpoints must not be user adjustable The setpoints must be set precisely to meet the charge and temperature requirements of the installed battery set and they must disconnect the load when the battery has reached a state of charge which can be repeated a minimum of 1000 cycles to 80 depth of discharge If battery voltage drops below the load disconnect setpoint the load must be disconnected and the solar array must remain connected The load must be automatically reconnected when the system voltage recovers The regulator must automatically compensate for temperature changes If temperature compensation becomes disabled the regulator must regulate at voltage regulation setpoints at 25 C The regulator unit must have a clearly marked colour coded voltmeter LED s or other indicators to show e Array charging green PQS E03 PV1 2 doc 6 of 13 06 July 2
3. by installation technicians who have received basic training The completed installation must be useable by the widest practicable range of health workers regardless of age gender size or minor disability including colour blind users and long sighted people without glasses in accordance with the general principles laid out in ISO 20282 1 2006 Safe access Photovoltaic arrays must be mounted in positions that allow safe access for installation maintenance and cleaning using appropriate fixed access equipment as necessary Avoid array mounting locations which require access across fragile roof finishes Materials Restricted materials The product and its constituent components must not contain lead except in batteries mercury cadmium hexavalent chromium polybrominated biphenyls PBB or polybrominated biphenyl ethers PBDE PQS E03 PV1 2 doc 8 of 13 06 July 2010 4 8 Warranty Any component which fails due to defective design materials or workmanship must be covered by a replacement warranty The minimum periods for the warranty must be as follows e 20 years for the solar module power output e 5 years for the battery with a full like for like replacement warranty for the first 12 months and pro rated financial compensation based on the purchase cost of the battery set for the remaining period in accordance with Figure 1 e 2 years for all other components Figure 1 Battery set failure compensation cha
4. anywhere within the specified geographical area In both cases the qualified supplier must provide the procurement agency with the data used to determine the installation design including reference periods for temperatures solar radiation conditions autonomy determination and assumptions made regarding site conditions The data must include the assumed monthly minimum solar radiation reference period assumed minimum and maximum ambient temperatures and the month requiring the most power Reference period climate conditions are to be in closest accordance with available meteorological data Performance Photovoltaic array Solar modules must comply with IEC 61215 crystalline solar modules or IEC 61646 thin film solar modules The power warranty is to be a minimum of 20 years to 80 of the initial power rating The minimum solar array capacity is to be no smaller than an array capable of sustaining the maximum load including all power system losses x 1 25 Array support structure The photovoltaic array support structure forms part of the installation and must be constructed of anodized aluminium stainless steel or steel hot dip galvanized to ISO 1461 after cutting and drilling Generalized roof ground mounts are to be supplied unless one of the following location specific mounts is specified at time of procurement e Pitched roof mounting An array support frame for connection to a pitched roof structure Any type of pitched
5. doc 11 of 13 06 July 2010 10 Defect reporting The legal manufacturer or reseller is to advise WHO and the UN purchasing agencies in writing in the event of safety related product recalls component defects and other similar events PQS E03 PV1 2 doc 12 of 13 06 July 2010 Revision history Date Change summary Reason for change Approved 02 04 2007 Re drafted in final PQS format Compatibility with PQS 09 05 2007 Revised to SMc comments amp teleconference UK SMc AG 26 04 07 UK 16 05 2007 Final review version UK 02 08 2007 Qualified supplier definition 10 systems changed to 50 2 Normative references updated 4 1 2 Reference to Annex 2 deleted 4 2 2 Roof ground mounts now the default option 4 2 3 Autonomy changed back to 5 days 4 2 6 Other indicators allowed in addition to voltmeter LEDs 4 2 7 Hand pump added 4 2 11 Wording clarified 4 3 4 Last sentence added 4 4 1 Door width increased to 830mm 4 4 2 Clarification added 4 9 2 Spare battery set specification amended 7 10 systems changed to 50 Annex 1 Note added Annex 2 Deleted In response to industry comments UK 06 07 2010 Icepack changed to water pack 1 Scope amended to include RFO06 2 Normative references updated 3 Autonomy definition amended 3 Installation definition RF06 added 3 Qualified supplier RF06 added 4 1 1 RFO6 ad
6. roof finish may be encountered including corrugated sheeting tiles and slates e Flat roof mounting The support frame should hold the array at the optimum angle and orientation for the site Depending upon the roof construction the frame may either be mechanically fixed to the roof or held down with weights e Wall mounting The support frame should hold the array at the optimum angle for the site Orientation will follow the alignment of the wall Any type of wall construction may be encountered including brick stone concrete steel or timber framing e Ground mounting The support frame should hold the array at the optimum angle and orientation for the site The frame will either be bolted to concrete pads or to a concrete slab e Pole mounting The support frame should hold the array at the optimum angle and orientation for the site and may be top mounted or side mounted The structure must be designed to withstand wind loads of 200 kg per square metre The structural package is to be supplied with theft deterrent fasteners sealant and all other necessary subsidiary components including the components needed to bond the array and the structure for lightning protection PQS E03 PV1 2 doc 5 of 13 06 July 2010 4 2 3 4 2 4 4 2 5 4 2 6 purposes in accordance with the solar module manufacturer s instructions Where site specific works are required to install the support structure these will be designed by the qualified sup
7. 010 4 2 7 4 2 8 4 2 9 4 2 10 4 2 11 4 3 4 3 1 4 3 2 4 3 3 e Low battery orange or yellow with a clearly labelled warning Do not freeze water packs in the appropriate language e Load disconnect red An acoustic alarm may be included as a supplementary high low battery and or load disconnect warning device Battery safety kit Note Applies to Type 1 systems only Provide comprehensive safety instructions hazardous materials data sheets and a battery safety equipment kit The safety equipment for flooded batteries is to include the following Temperature compensated hydrometer 1 0 litre plastic decanting jug Plastic filling funnel Eye hand and clothing protection Sodium bicarbonate for cleaning electrolyte spills A hand pump for electrolyte is to be provided if the electrolyte is supplied in containers of more than 5 litres Power switch At least one method to disconnect the refrigerator from the solar power system must be supplied Electrical safety rating Manufacturer to certify compliance with IEC 60335 1 with particular reference to Section 8 Protection against access to live parts and Annex B Appliances powered by rechargeable batteries All on site electrical installation work must comply with IEC 60364 1 4 2 15 Electrical protection The system design must prevent damage to all components in the event of short circuits electrical storms and reversed polarity connections
8. 10 4 11 4 12 4 13 e 15 no thermostats or temperature control cards e 10 no condenser fans if used Disposal and recycling The manufacturer is to provide information to the buyer on the hazardous materials contained within the components and suggestions for resource recovery recycling and or environmentally safe disposal For the European Union WEEE compliance in accordance with European Union Directive 2002 96 EC is mandatory Instructions For each installation provide a separate user manual technician s manual and installation manual in the language most appropriate to the installation site Arabic English French Mandarin Chinese Russian or Spanish The manuals must include the following information User manual e Daily weekly and monthly maintenance tasks e Health and safety guidance Technicians manual Periodic preventative maintenance checks Diagnostic and repair procedures Health and safety guidance Itemized list of spare parts including part numbers Resource recovery and recycling procedures Installation manual Installation design rationale Site specific drawings if applicable Full installation instructions including array siting recommendations Wiring diagrams Full commissioning instructions Health and safety guidance Training Optional training courses are to be offered by the qualified supplier or a designated representative Verification In accordance wit
9. Deplete the Ozone Layer Procurement Agency The organization which purchases the equipment covered by this specification and which provides the qualified supplier with details of the installation site s Qualified Supplier A qualified supplier may be either a legal manufacturer or a reseller and must e Supply a coherent correctly sized installation where the settings of all the components have been adjusted for optimum performance at the installation site e Have installed and supported e g by providing on going technical assistance spare parts and system documents at least 50 photovoltaic systems in a developing country or countries for at least two years detailed references including donors locations and contacts must be provided for independent verification e Have the capacity and financial resources to provide long term support to the systems in the country of destination e Offer one or more refrigerators or combined refrigerator and water pack freezers complying with PQS standards E003 RF04 and or E003 RF05 and or E003 RF06 and which are currently pre qualified by WHO PQS E03 PV1 2 doc 3 of 13 06 July 2010 4 1 4 1 1 4 1 2 Reseller A commercial entity licensed to act on behalf of a Legal Manufacturer and which carries product liability and warranty responsibilities no less onerous than those carried by the Legal Manufacturer Solar radiation reference period The minimum average daily solar radiati
10. WHO PQS E003 PV01 2 PQS performance specification Original English Distribution General TITLE Solar power system for compression cycle vaccine refrigerator or combined refrigerator and water pack freezer Specification reference E003 PV01 2 Product verification protocol E003 PV01 VP 2 Issue date 6 July 2010 Date of last revision 2 August 2007 Contents Da A ANN 2 2 Normative references e seessoesssossooesosssecsssossoosssosssoessosesoessoosseosssosssoessoessessse 2 3 Terms and de MIOS and dias 3 4 ReqUICEMEN S 3 050005 ccssiccsascoctcssveoteatiaceisececsccszesessecconssdeuac satessexcauacdsceasedesesesiocts 4 4 1 Generalitat da da tA ak 4 4 1 1 System characteristic S cooooonnoccccnnonnnnnnnnonnnnonnnannnonnn nono nnnnn cnc paei cnn 4 4 1 2 Design respOnsibility cccccccccccccccccccsssececeeceseeseseceeeceseeeseneeeeeseesesenaaees 4 O A O O 5 4 2 1 PhoOtOVO AIC GITAY ronssin iiini i 5 4 2 2 Array SUpport S TUC UTE icenen naceni kea i iai i 5 4 2 3 Battery set SIZING ii atleti diz 6 4 2 4 BAUME Y TY DOE ssenari RS EE E SS 6 4 2 5 Battery Set housing enrica naai nr nn nn aai a 6 4 2 6 Battery Charge regulator csccccccssecccceessccesssscceeeesneecsssueeecssseeeeessaeees 6 4 2 7 Battery safety kita tasa 7 4 2 8 Power Wicho iden 7 4 2 9 Electrical safety rating ccccccccccccccccecsssccceceeseeseneceeeceeseesesuaeeeeeeeesenaaes 7 4 2 10 Electrical protection oonnonocccnnnnnnnnnononnnnno
11. ancillary equipment such as fans instrumentation and control This battery is charged from the solar array The following verification documents are associated with this specification e E003 PV01 VP1 2 is a type examination protocol which will be used for pre qualification evaluations e E003 PV01 VP2 2 is a quality assurance protocol which specifies the installation commissioning and handover procedure for a complete Type 1 or Type 2 system It is intended to be used as an on site checklist by the person responsible for signing off the completed installation on behalf of the procurement agency 2 Normative references EMAS European Union Eco Management and Audit Scheme IEC 60335 1 2006 Household and similar electrical appliances Safety Part 1 General requirements IEC 60364 1 2005 Low voltage electrical installations Part 1 Fundamental principles assessment of general characteristics definitions IEC 61194 1992 Characteristic parameters of stand alone photovoltaic PV systems IEC 61215 2005 Crystalline silicon terrestrial photovoltaic PV modules Design qualification and type approval IEC 61646 2008 Thin film terrestrial photovoltaic PV modules Design qualification and type approval PQS E03 PV1 2 doc 2 of 13 06 July 2010 ISO 1461 2009 Hot dip galvanized coatings on iron and steel articles specifications and test methods ISO 9001 Quality Management Systems Requirements ISO 14001 2004 Environmental
12. ded 4 1 2 Amended to include Solar Autonomy Calculation Tool method 4 2 1 Clause amended 4 2 3 Clause amended 4 2 7 Note added 4 3 3 and use omitted from title 4 5 1 RFO6 added Minor clarification 4 6 1 Clause amended 4 13 VP reference amended 7 ISO 9001 waiver omitted Annex 1 Deleted Response to comments from manufacturers testing laboratories and others PQS E03 PV1 2 doc 13 of 13 06 July 2010
13. e eeepc nde ees 10 AAD VOT Cat OM esoe srra E a TEE dos ERER EEE S AEE NE E ASEEN 10 O A E RE E O nn anes aatos Sss ssrs sasse 10 6 On site installation ii ic 10 7 Product dossier cnica ceo 11 8 On site maintenance se sseesseeesseesoeesoresoeeeceecsoeesoreseeeecoeeeseeeoeeseoeeeeeeseeesoreseeee 11 9 Change notification sscccscsccccsscsscccssccecsssccesssscesssssceesssccscesssceseesenes 11 10 Defect reporting cccsccccsccsssccssccssessscscescsssscesssccscssescceescsssessessssseseessseees 12 1 Scope This specification describes the requirements for solar power systems that operate compression cycle vaccine refrigerators or combined refrigerator and water pack freezers Qualified suppliers are also free to offer the installation and maintenance services described in this document although the provision of these services is not a condition for pre qualification On going supply of spare parts is a mandatory requirement Two alternative systems are covered by this protocol Type 1 systems use a solar array to charge an electrical storage battery pack which then powers refrigeration equipment complying with specification E003 RF04 Type 2 systems use a solar array directly to power the refrigerator compressor Direct drive refrigeration equipment complying with specification E003 RF05 is entirely battery free Direct drive refrigeration complying with specification E003 RF06 uses an integrated battery to power
14. h PQS Verification Protocol E003 PV01 VP2 2 Packaging Materials used for packaging components are to be free of ozone depleting compounds as defined in the Montreal Protocol The general specification of shipping containers will be subject to agreement with the individual procurement agencies On site installation Unless otherwise requested installation will be carried out by the procurement agency or by others designated by the procurement agency The qualified PQS E03 PV1 2 doc 10 of 13 06 July 2010 supplier is free to offer this service directly or through a designated representative 7 Product dossier The legal manufacturer or reseller is to provide WHO with a pre qualification dossier containing the following e Dossier examination fee in US dollars e General information about the legal manufacturer including name and address e General information about the reseller including name and address where applicable e A list of at least 50 solar photovoltaic systems installations in one or more less developed countries completed and supported over a period of at least two years prior to the date of dossier submission Provide full details of each installation including details of installed equipment country and location procurement agency and named contacts e A list of the countries or regions in which the legal manufacturer or reseller is able to offer the optional support services described in clauses 6 and 8 toge
15. hout the design life of the installation when exposed to the weather extremes characteristic of the installation site these may include tropical storms up to and including Saffir Simpson Hurricane Scale 5 and or intense hail snow ice and dust storms Additional specifications may be added by procurement agencies to suit local site conditions Physical characteristics Overall dimensions System components must be able to fit through an 830mm wide door opening with the door leaf removed if necessary Weight System components must be capable of being safely manhandled into their final positions Mechanical lifting equipment will typically not be available at the installation sites It is recommended that individual component packages should be designed so that they can be lifted in such a way that no single worker is required to carry more than 25 kg whilst working on their own or in a group Interface requirements Refrigerator s In order to complete the installation the qualified supplier must supply all the solar system components needed to connect to the specified refrigerators or combined refrigerator and water pack freezer s Refrigerators for Type 1 systems must comply with PQS specification E003 RF04 Refrigerators for Type 2 systems must comply with specification E003 RF05 or E003 RF06 Human factors Generally The solar system components must be easy to assemble and commission using normally available hand tools
16. lar systems must provide a minimum of 5 days of autonomy unless an alternative autonomy of greater or lesser days can be calculated using one of the two methods defined in the normative reference Toma H and Markvart T Solar Autonomy Calculation Tool University of Southampton UK 2009 The two methods are 1 Selection of autonomy for the specific locations listed in the supporting document to the Solar Autonomy Calculation Tool 2 Calculation of autonomy using the formulas and the required long term daily solar radiation data as described in the Solar Autonomy Calculation Tool Two design cases apply when the installation site is known and when it is unknown Instructions for Autonomy Calculation For Solar Vaccine Refrigeration Systems per the WHO PQS Table 1 includes a subset of sites for which the data are considered to be sufficiently accurate for solar vaccine refrigerator applications PQS E03 PV1 2 doc 4 of 13 06 July 2010 4 2 4 2 1 4 2 2 e Known sites The procurement organization will specify as accurately as possible the site location for each installation including the country name site name latitude and longitude and where possible the elevation in metres above sea level e Unknown sites The procurement agency will specify the country name and where possible the region within the country In both cases the qualified supplier must then design the installation to provide the required autonomy
17. management systems Requirements with guidance for use ISO 20282 1 2006 Ease of operation of everyday products Part 1 Context of use and user characteristics Solar Autonomy Calculation Tool H Toma and T Markvart University of Southampton UK 2009 3 Terms and definitions Note Solar energy definitions are contained in IEC 61194 Autonomy Time in days that a solar refrigerator or combined refrigerator and water pack freezer can maintain the vaccine load within the acceptable temperature range under low solar radiation conditions e g rain Autonomy is determined as described in clause 4 1 2 and measured as described in E003 RF05 VP 2 and E003 RF06 VP 1 In writing means communication by letter fax or email Installation The solar power system components specified in this document connected to a refrigerator or combined refrigerator and water pack freezer complying with specification E003 RF04 E003 RF05 or E003 RF06 Installation technician The person who installs the solar power system and associated refrigerator on behalf of the procurement agency Legal Manufacturer The natural or legal person with responsibility for the design manufacture packaging and labelling of a product or device before it is placed on the market under his own name regardless of whether these operations are carried out by that person himself or on his behalf by a third party Montreal Protocol Montreal Protocol on Substances that
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19. on on the plane of the solar array that is required to properly power the solar refrigerator or combined refrigerator and water pack freezer expressed in kWh m day Requirements General System characteristics The solar power components will be connected to one or more DC compression cycle refrigerators generally 12 volt complying with PQS specifications E003 RF04 E003 RF05 or E003 RF06 This equipment is used primarily in areas without any electricity or where there is less than 8 hours of reliable electricity over a typical day Reliability durability and effective maintenance are essential for a successful installation Each power system must be purpose designed to match the power consumption of the connected refrigeration equipment and the site specific climate conditions taking account of ambient temperatures available solar radiation resource and autonomy requirements No additional loads such as lighting or pumping are to be connected to the solar power system Design responsibility The procurement organization will specify the capacity and characteristics of the refrigeration equipment that is to be connected to the solar system components The installation must then be sized to ensure that the specified refrigerator s or combined refrigerator and water pack freezer s operate continuously within specified temperature limits both when solar radiation is powering the system and throughout the autonomy period All so
20. plier and constructed by others Battery set sizing Batteries must be sized to meet the autonomy period determined as described in 4 1 2 based on the energy required for the appliance s to which the solar system components are connected In no case should the battery have a capacity of less than 3 days Required battery capacity is estimated over the discharge rate and temperature most closely matching the autonomy period and temperature at the site e g at C 120 hours at 25 C for a 5 day autonomy period to a final voltage that ensures the minimum required battery set life of 1000 cycles to 80 discharge at 25 C Battery capacity must be sufficient to ensure that the designed autonomy period is maintained throughout the minimum required battery set life of 1 000 cycles to 80 discharge Battery type Note Applies to Type 1 system only Both sealed and flooded batteries are acceptable although sealed batteries are preferred for installations in remote areas where maintenance will be difficult The maintenance cycle for flooded batteries must be 6 months or greater they must have clear casings to allow the user to inspect electrolyte levels and they must be supplied dry charged with the electrolyte packed in separate hermetically sealed containers Battery set housing Note Applies to Type 1 system only The battery set must be housed within a lockable ventilated cabinet with a clear viewing window for maintenance inspection by the user
21. rt age compensation 100 90 80 70 60 50 40 30 20 10 0 Full battery set replacement in first 12 months Graduated financial compensation from 12 to 59 months o 0 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60 Months since commissioning 49 Servicing provision 4 9 1 Maintainability Installations are to be substantially maintenance free other than array cleaning routine battery servicing flooded batteries and periodic battery replacement 4 9 2 Essential spare part Se Supply sufficient spare parts for the first 5 years of operation Spare parts are to be provided in kit form for storage in appropriate quantities at central or regional level in the purchasing country as agreed with the purchasing agency As a minimum supply the following quantities per 50 installations Solar system components e 1 no solar module e 1 no solar array cable e no battery set if used together with a battery charger of appropriate capacity and voltage and instructions for battery maintenance during long term storage e 5 no battery charge controls if used Refrigerator components e 5 no compressors or complete cooling units to suit supplied refrigerators e 15 no compressor electronic control cards Round down the quantity of spares marked if fewer than 50 installations PQS E03 PV1 2 doc 9 of 13 06 July 2010 4
22. ther with details of these services e Unique identification reference for the system type e System type offered Type 1 Type 2 or both e Full specifications of the components being offered covering all the requirements set out in this document including details of product marking and traceability e Certified photocopies of all type approvals obtained for the product including CE marking and the like e Certified photocopies of the legal manufacturer or reseller s ISO 9001 quality system certification e Where relevant certified photocopies of the legal manufacturer or reseller s ISO 14001 certification EMAS registration or registration with an equivalent environmental audit scheme Conformity with an environmental audit scheme is not mandatory however preference will be given to manufacturers who are able to demonstrate compliance with good environmental practice e Where available laboratory test report s proving conformity with the product specifications e Where available laboratory test report s proving conformity with the product specifications e Indicative cost of the product per unit per 10 units and per 100 units EXW Incoterms 2000 8 On site maintenance Not required but may be offered 9 Change notification The legal manufacturer or reseller is to advise WHO in writing of any changes which adversely affect the performance of the product after PQS pre qualification has taken place PQS E03 PV1 2
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