Meyer Burger WHITE - Module positioning; Freedom from shade; Substructure

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3.3 Module positioning
 •ThePVmodulescanbeinstalledinlandscapeorportrait
format.
 •Ensurethatthereisnowaterbuild-up.Rainandmeltwater
must be able to drain freely.
 •Thedrainageopeningsinthemoduleframemustnotbe
coveredorsealed.
 •ThePVmodulesmustbeinstalledwithaminimum
inclinationangleof5°.
 •Themaximumpermittedinclinationanglemustbe
determinedinaccordancewiththelocallyapplicable
regulations.
 •Aninclinationanglegreaterthan20°hasapositiveeect
ontheself-cleaningofthePVmodules.
 •Theremustbenoobjects(airoutlets,antennas,etc.)
onthebackofthemodulethatcouldleadtopointloads
whenthePVmodulesbend.
3.4 Freedom from shade
Optimalsolarradiationresultsinmaximumenergyyield:
 •InstallthefrontofthePVmodulesfacingthesolar
radiation.Theelectricalconnectionboxislocatedonthe
rearofthePVmodule.
 •Shadingandpartialshading(e.g.trees,chimneys,buildings,
dirt,snow,overheadlinesetc.)shouldbeavoided.
 •InthecaseofbifacialPVmodules,itmustbeensuredthat
shadingcausedbythesubstructureontherearofthe
moduleisavoidedorminimised.
 •Inthecaseofstrongorinhomogeneousshading,theuse
ofoptimizersinthesystemmaybeadvantageous.
3.5 Substructure
 •ThestructureorsubsurfaceonwhichthePVsystemis
installedmustbeabletoabsorbtheresultingstaticloads.
 •Thesubstructuremustbeabletoabsorbtheforcesacting
onthemodule.
 •Thestaticsofthesubstructuremustbedesigned
accordingtothelocalsnowandwindloads.
 •Inadditiontothewindandsnowloads,noforces
mayactonthemoduleviathesubstructure.
 • Thesubstructuremustbeproperlyxedtotheroof
ortheoor.
 • Unevensnowloads(e.g.snowoverhangs,snowdris)
thatleadtolocalincreasesinloadsmustbeeliminatedor
preventedbytechnicalmeasures.
 • Thesubstructuremustensureadequatecoolingthrough
rearventilationofthePVmodules.
 • Thexingmustbestress-freetoallowfortemperature-
relatedchangesinlength.
 • Aminimumdistanceof5mmbetweenthePVmodulesis
recommended.
 • ThePVmodulescanbefastenedusingclampsorinsert
rails.TheMEYERBURGERWHITEandMEYERBURGER
BLACKPVmodulescanalsobefastenedusingascrew
connection(pointconnection)(seetableinSection3.7).
 • Theremustbenocomponentsbetweentheprolesofthe
substructureandthePVmodules.
 • Sharpedgesandpointloadsofthesubstructureunderthe
PVmodulesmustbeavoided.
 • Additionalstressesandtorquesatthemountingpositions
arenotpermitted.Itmustbeensuredthattheclampsor
insertionrailsdonottouchtheglass,evenunderload.
 • Adistanceofatleast50mmfromthesubstructureand
otherhardstructuresunderthejunctionbox(exceptfor
mountingvariantCP2)mustbeensured.
 • Makesurethatthecablescannotbepinchedbetween
laminateandcarrierrailunderhighcompressionload.
Routingthecablealongthemoduleframeisrecommended.
 • Contactbetweendierentmetallicmaterialsmustbe
avoided(contactcorrosion,observeelectrochemical
series),e.g.itmustbeensuredthatthefasteningscrews
andwashershavethesamematerialproperties.
 • Corrosion-resistantscrewsandwashersmustbeusedfor
installation.
Local,country-specicbuilding
regulationsmustbeobserved.