5
■
Individual PV modules:
• Store individual PV modules in an upright position
on wedges with suitable padding. Use adequate pad-
ding between the individual PV modules.
• Avoid stacking individual PV modules, as well as the
pallets they rest on.
4.1.2
Unpacking PV modules
■ Only for PV modules packed in vertical position
• Using an underlay, incline the pallet (e.g. with a
beam, height approx. 10 cm for 5° inclination), so
that the opening on the front of the box is elevated.
The modules then lean back in the box which makes
it easier to remove them.
• Use an underlay for inclining which supports the
whole side of the pallet (e.g. a beam). This keeps
the modules supported in the box along their entire
width.
• Remove the module from this side only. Remove the
module with the help of another person, if possible.
• Observe the unpacking instructions on the module
box.
4.1.3
Checking PV modules
• Before installation, check each PV module for
mechanical defects. Pay particular attention to possi-
ble damage to glass panels and insulated back
sheets.
• In addition, check the insulation on the cables,
connectors and junction boxes.
• If you discover any defects, report them to the
supplier or transport company immediately.
4.1.4
Transporting PV modules to installation sites
■
All framed modules
• Always carry the PV module with one other person.
Take hold of the PV module on its long sides.
• When transporting individual PV modules, make sure
that you do not put any strain or pressure on the
junction box and cables.
4.2
Safety precautions
When installing on roofs or other elevated sites,
objects may fall down.
Severe or fatal injuries are possible!
• Block off the danger zone for people and animals
before beginning installation work. If possible, remove
all objects from the danger zone.
Electric arcs form when electrical connections
are made or disconnected incorrectly.
Severe or fatal injuries from electric shock or
severe injury from burns!
• Disconnect the photovoltaic generator before you
carry out any work on the electrical components of
the photovoltaic generator.
High DC voltages, even when the photovoltaic
generator is disconnected, if the generator is
earthed.
Severe or fatal injuries from electric shock!
• If the circuit of your photovoltaic generator is
earthed, remove the earth before carrying out
electrical work on the generator.
WARNING!
Exposed live parts on damaged modules.
Danger of electric shock!
• Only use components which are in perfect condition
for use in photovoltaic systems. Do not install PV
modules with visible damage to the glass panels,
the insulating back sheet or on the insulation of
electrical connections.
WARNING!
Contact with live parts due to unsuitable tools
or wet conditions. Danger of electric shock!
• Only use approved, insulated tools for installation or
maintenance work on live parts.
• Work in dry conditions. Make sure that the electrical
connections on the solar module, the cables used
for installation and the tools, are dry.
4.2.1
Health and safety
CAUTION!
Risk of slipping due to wind, rain, snow or ice.
Risk of injury due to falling or colliding with
objects!
• Avoid unfavourable weather conditions, such as
strong wind or rain.
• Also avoid working on the installation site in ice and
snow.
• Use the safety equipment required or recommended
by local regulations, such as hard hats, steel-capped
shoes with rubber soles, protective goggles, gloves
or fall-protection systems.