WIND/SNOW LOAD
· The modules have been designed to resist a static load of
5400 Pa (positive load).
· When using a insertion system on a short frame without
additional support-rail, the modules have been designed to
resist a static load of 2400 Pa.
· This resistance value can decrease if modules are not
mounted following the instructions above.
4 Electrical installation
4.1 MODULE SELECTION
Only connect modules of the same type, same configurations and same power class in the same system. This is
the only way to achieve optimal yields.
4.2 SAFETY FACTOR
Under normal conditions, a photovoltaic module may experience conditions that produce more current and/or
voltage than reported at Standard Test Conditions. Accordingly, the values of ISC and VOC marked on modules
should be multiplied by a factor of 1.25 when determining component voltage ratings, conductor capacities, fuse
sizes and size of controls connected to the module output. Alternatively, all valid national regulations for the instal-
lation of electrical systems are to be applied.
4.3 GENERAL INSTALLATION
· Before installing modules, contact the appropriate authorities to determine permissions, installation and inspection
requirements to follow that apply to your site and installation.
· Check applicable building codes to ensure that the construction or structure (roof, facade, support, etc.) where the
modules are being installed is strong enough to support the weight of the modules and all other system components.
· If modules are connected in series, the total voltage is equal to the sum of individual voltages. The recom-
mended max. number of module (N) = Vmax system / [Voc(at STC)]/1.25.
· If the modules are allowed to be installed in parallel electrically, each module (or series string of modules so con-
nected) shall be provided with the maximum series fuse as specified. For applications requiring high currents,
several photovoltaic modules can be connected in parallel; the total current is equal to the sum of individual cur-
rents, each module (or series string of modules so connected) shall be provided with the maximum series fuse
as specified. The recommended number of module in parallel is only one.
· Use special solar cable and suitable plugs only (wiring should be placed in conduit that is sunlight-resistant or,
if exposed, should be sunlight-resistant) in accordance with local fire, building and electrical codes. Ensure that
they are in perfect electrical and mechanical condition.
· Only use solar cables as connection cables. Use connectors of the same type and manu¬facturer within a solar
system, and compatible connectors to connect the inverter.
· Ensure that all electrical components are in a proper, dry and safe condition. In this way you avoid electrical
short-circuits or dangerous contact voltages due to defective or dam¬aged cables.
· Always avoid mechanical stressing of the connection cables.
· Ensure a tight connection between the individual connectors (especially to the inverter). Make sure they click
together properly.
Installation manual for crystalline solar photovoltaic modules
9
Содержание TP536M-100
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