PHOTOWATT PW60HT-C-XF, Руководство по установке

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D81-P06-01 GB R5 28/07/2020 www.photowatt.com
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ANNEX A: ALTERNATIVE MOUNTING METHODS
All the basic requirements of the main aluminum
frame Dymond installation manual should also
apply to alternative mounting methods, unless
otherwise specified.
The loads described in this manual correspond
to test loads. For installations complying with IEC
61215-2:2016 and UL 1703, a safety factor of 1.5
should be applied for calculating the equivalent
maximum authorized design loads. Project design
loads depend on construction, applicable stan-
dards, location and local climate.
Determination of the design loads is the responsi-
bility of the racking suppliers or professional en-
gineers. For detailed information, please follow
local structural code or contact your professional
structural engineer.
CLAMPING METHODS
•
The mounting method has been qualified by
EDF ENR PWT as well as certified by VDE and
CSA.
•
Each module must be securely fastened at a
minimum of four points on two opposite sides.
The clamps should be positioned symmetrical-
ly. The clamps should be positioned according
to the authorized position ranges defined in
table A. Install and tighten the module clamps
to the mounting rails using the torque stated
by the mounting hardware manufacturer. M8 X
1.25 (5/16”) bolt and nut are used for this clam-
ping method. The yield strength of bolt and nut
should not be less than 450 MPa.
•
Tightening torques should be within 17~23 Nm
(12.5~17.0 ft-lbs) for M8 (5/16”-18 Grade B7)
coarse thread bolts, depending on the bolt
class. For the bolt grade, the technical guide-
line from the fastener suppliers should be fol-
lowed. Different recommendations from speci-
fic clamping hardware suppliers should prevail.
•
The system designer and installer are res-
ponsible for load calculations and for proper
design of support structure.
•
EDF ENR PWT’s warranty may be void in cases
where improper clamps or unsuitable instal-
lation methods are found. When installing in-
ter-modules or end-type clamps, the clamps
must:
1. Not bend the module frame
2. Not touch or cast shadows on the front glass
3. Not damage the surface of the frame (to the ex-
ception of the clamps with bonding pins)
4. Ensure to overlap the module frame by at least
5 mm (0.2 in)
5. Ensure to overlap in length by at least 80 mm
(3.15 in). when uplift load ≤ 4000 Pa, 40 mm
(1.57 in) when uplift load ≤ 2400 Pa.
6. Ensure to have a thickness of at least 3 mm (0.12
in)
•
Clamp material should be anodized aluminum
alloy or stainless steel.
•
Clamp positions are of crucial importance for
the reliability of the installation. The clamp
centerlines must only be positioned within the
ranges indicated in table A, depending on the
configuration and load.