7
Fig. 4: Clamping on short side
Slip-prevention
Our module frames are supplied with drill-holes for the purposes of slip-prevention when installed in an inclined position,
and to make them easier to fit. Cylinder-head bolts with Allen-key sockets are inserted into these holes in the module frame.
The bolts are secured in place with a plain washer and nut, or a self-locking nut. The use of M 5 x10 VA bolts with
corresponding toothed lock-washer and nut is recommended for anti-slip purposes.
Module load capacity
Heckert Solar’s standard modules are certified by TÜV Rhineland to handle loads of up to 5400 Pa. SOLRIF
®
-type and
frameless solar modules have been tested at loads of up to 2400 Pa. The load capacity of the SOLRIF
®
modules can be
increased significantly by using additional mounting boards as support (please find more information on that in the
calculation tool “Prosolrif” by the company Schweizer).
CAUTION: Please note that the modules can only achieve their maximum load performance if they are
clamped in the specified clamping area and in compliance with all requirements.
Ensure that the maximum mechanical-load capacity is observed, paying particular attention to the load factors present at
the site of installation (such as those resulting from wind and snow, etc. See also DIN 1055-4/5). Note that the module may
buckle when subjected to excessive loads. Do not use any material that may result in the module being exposed to, and
therefore damaged by, sharp or pointed edges, or uneven structures. The snow load at base sk (measured in kN/m²) is
calculated using local levels of snowfall, the location of the building and its height above sea level. The likely wind load for
the site of the project should be estimated using a wind-zone chart that along with wind zones also takes into account local
conditions. A simplified procedure can be used to estimate prevailing wind-load when considering buildings of up to 25
metres in height. Depending on the height of the building, wind load is expressed as velocity pressure q, measured in
kN/m³. Wind-load charts and snowfall maps are available for download from websites such as:
http://de.wikipedia.org/wiki/Schneelast
http://de.wikipedia.org/wiki/Windlast
CAUTION: Please note that the specialist firm engaged to fit the system is solely responsible for the planning
and implementation of the project, and that a separate set of structural static calculations may have to be
drawn up in certain cases.
6. Connection and hook-up of modules
•
The modules are wired directly via the plug socket fitted to the connection box (Fig. 5):
Left-hand pin connector (+); right-hand pin connector (-)
All sockets used for this purpose must be of the authorised type supplied by Tyco. The use of plug-in connectors of
any other kind will void the warranty.
•
The unit is supplied ready-fitted with a 1.9 metre length of cable on the positive (left-hand) side. This cable is fitted
with the corresponding positive (+) and negative (-) sleeve connectors.
Summary of Contents for NeMo 54 P 195
Page 12: ...12...
