Electrical Connections; Series Connection - Sunpower Spr-Xxxe-Wht Series Sicherheits- Und Installationsanleitungen

4.0

Electrical Connections

Modules may be connected in series and/or parallel to achieve
the desired electrical output as long as certain conditions are
met. Please use only the same type of modules in a combined
source circuit.
The connectors on SunPower modules ship with a locking
safety clip, which once connected requires the use of a tool to
disconnect module-to-module
against untrained personnel disconnecting the modules when
under load, in anticipation of a change considered in the next
update of IEC 61730.
SunPower recommends that all wiring be double insulated with
a minimum rating of 85º C (185° F). All wiring should use
flexible copper (Cu) conductors. The minimum size should be
determined by the applicable codes. We recommend a size not
2
less than 4mm . The insulation type should be appropriate for
the type of installation method used and must meet SCII
(Safety Class II) and IEC 61730 requirements.
4.1 System & Equipment Grounding
Please refer to the applicable regional and local codes on
grounding PV arrays and mounting frames for specific
requirements (e.g. lightning protection).
Review the following tables for the proper grounding
techniques to use for your SunPower solar panels.
Module Name/ Grounding Key
New SPR modules are
compatible with Transformer Less
(TL) inverter
No frame or system grounding
Requirements (including
functional frame grounding)
SPR-XXXNE-WHT
SPR-XXXNE-BLK
Standard modules grounding reference
Important! For optimal performance, SunPower modules
must only be used in configurations with galvanically
insulated inverters where the positive (+) polarity of the
PV array is connected to ground protected by a fuse. In
addition, the module frame should be grounded. Failure to
comply with this requirement
performance of the system and invalidate SunPower's
Limited Power Warranty for PV Modules.
Grounding of the module frame can be achieved through
use of clamps that penetrate the anodization in conjunction
with grounding of the mounting system or through direct
grounding of the frames by attaching a copper wire to a
grounding hole of each module (bolt size, M6 × 1.0 × 50)
For additional assistance, contact SunPower technical
support at support@sunpower.de.

4.2 Series Connection

The modules may be wired in series to produce the desired
voltage output. Do not exceed the maximum system voltage.
© March 2011 SunPower Corporation. All rights reserved. Specifications included in this manual are subject to change without notice.
connections. This defends
Standard SPR Modules require
positive grounding (See
instructions below)
SPR-XXXE-WHT
SPR-XXX-WHT
SPR-XXXE-BLK
SPR-XXX-BLK
will reduce the
Safety and Installation Instructions - Document 001-15497 Rev *G
4.3 Parallel Connection
The modules may be combined in parallel to produce the
desired current output. Series string must be fused prior to
combining with other strings if the resulting maximum reverse
current exceeds the fuse rating as shown in the datasheets.
Bypass diodes are factory installed in the modules. Please
refer to the applicable regional and local codes for additional
fusing requirements and limitations on the maximum number of
modules in parallel.
5.0
Module Mounting
The SunPower Limited Warranty for PV Modules is contingent
upon modules being mounted in accordance with the
requirements described in this section.
5.1 Site Considerations
SunPower modules should be mounted in locations that meet
the following requirements:
Operating Temperature: All SunPower modules must be
mounted in environments that ensure SunPower modules will
operate within the following maximum and minimum operating
temperatures:
Maximum Operating
Temperature
Minimum Operating
Temperature
Care should be taken to provide adequate ventilation behind
the modules, especially in hot environments.
Design Strength: SunPower modules are designed to meet a
maximum positive (or upward, e.g. wind) and negative (or
downward, e.g. static load) design pressure of 2400 Pa
2
(Pascals; 245 kg/m ) when mounted in all of the mounting
configurations specified in Section 5.2. A design strength of
2400 Pa corresponds approximately to a wind speed of 200
km/h (125 mph).
SunPower modules are designed to meet a maximum negative
(or downward, e.g. snow load) of 5400 Pa (Pascals; 550 kg/m
for the following mounting configurations only when mounted in
adherence to Section 5.2 below. 5400 Pa design strength has
been verified by SunPower and certified.
1) 72 cell modules with dimensions of (1559mm x
798mm) meet 5400 Pa in the following mounting
configurations described in Section 5.2 below
a. Frame Holes
b. Pressure Clamps or Clips
c. End Mount
2) 96 cell modules with dimensions of (1559mm x
1046mm) meet 5400 Pa in the following mounting
configurations described in Section 5.2 below
a. Frame Holes
b. Pressure Clamps or Clips
When mounting modules in snow prone or high wind
environments, special care should be taken to mount the
modules in a manner that provides sufficient design strength
while meeting local code requirements.
Excluded Operating
environments are not recommended for specific SunPower
modules and are excluded from the SunPower Limited
Warranty for these modules.
SUNPOWER CORPORATION
+85°Celsius,+185° Fahrenheit
-40 Celsius, -40 Fahrenheit
Environments: Certain operating
2
)