Sun-Tech STP410S-A User manual

Global Installation Guide for Suntech
Power Standard Photovoltaic Module
Version 20200601

Version 20200601 No.
Table of Contents
Purpose of this guide •••••••••••••••••••••••••••••••• 2
General safety
Handling safety
Installation safety
Fire safety
Product Identification •••••••••••••••••••••••••••••••• 3
Mechanical Installation••••••••••••••••••••••••••••••• 4
Selecting the location
General installation
Installation method
Attachment guidelines
Electrical Installation •••••••••••••••••••••••••••••••• 10
General installation
Grounding
Maintenance ••••••••••••••••••••••••••••••••••••••••••• 12
* Please read carefully. This document is binding for any warranty case.
* Any installed PV system less than 500m from coastline, please refer to the
Near-coast installation manual.
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Purpose of this guide
This guide contains information regarding the installation and safe handling of Wuxi Suntech Power Co., Ltd photovoltaic
module (hereinafter referred to as “module”). Wuxi Suntech Power Co., Ltd referred to as “Suntech”.
Installers must read and understand this guide prior to installation. For any questions, please contact Suntech's Global
Quality & Customer Support department or our local representatives for more detailed information. Installers must follow all
safety precautions as described in this guide as well as local requirement and regulations by law or authorised organizations.
Before installing a solar photovoltaic system, installers should familiarize themselves with its mechanical and electrical
requirements. Keep this guide in a safe place for future reference (care and maintenance) and in case of sale or disposal of the
modules.
Suntech modules are tested and certified for installation worldwide. Different regions may have different regulations for
solar PV installations. In this guide, hereinafter "IEC Only" is used to refer to regions where IEC standard applies, e.g. Europe,
Middle East, most of Asia Pacific countries; " UL Only " is used to refer to regions where UL standard applies, e.g. United States,
Canada; all other references are global.
General safety
Modules that fall under this application class may be used in system operation at more than 50V DC or 240W, where general
contact access is anticipated. Modules qualified for safety under IEC 61730-2 and within this application class are considered to
meet the requirements for Safety Class II. (IEC Only).
PV modules are recommended to be installed at altitudes of less than 2000m.
Installing solar photovoltaic systems requires specialized skills and knowledge. Installation must only be performed by
authorized and trained personnel.
Installers must assume all risks of injury that might occur during installation, including, but not limited to, the risk of electric
shock.
One single module may generate more than 30V DC when exposed to direct sunlight. Contact with a DC voltage is
potentially hazardous and should be always avoid.
Do not disconnect the modules or any electrical part under load.
PV modules generate electricity when exposed to sunlight. Number of modules string connected can cause lethal shock and
burn hazards. Only authorized and trained person should have access to the modules.
Photovoltaic solar modules convert light energy to direct current electrical energy. They are designed for outdoor use.
Modules can be ground mounted, mounted on rooftops. The proper design of support structures lies within the responsibility of
the system designers and installers.
When installing the system, abide to all local, regional and national statutory regulations. Obtain a building permit if
necessary.
The electrical characteristics are within ±3 percent of the indicated values of Isc, Voc and Pmax under standard test
conditions (irradiance of 1000 W/m², AM 1.5 spectrum, and a cell temperature of 25 °C (77 °F) ).
Only use equipment, connectors, wiring and support frames suitable for solar electric systems.
Do not use mirrors, other magnifiers or artificially concentrated sunlight onto the modules.
Always use fall protection equipment when working from heights of 6 feet (183cm) or above. Follow Occupational Safety
and Health Act (OSHA) or local governing safety regulations regarding Fall Protection. (UL Only)
Do not sit, stand, step or walk on any side of the module, including the frames.
Do not permit any part of the module(s) to be submerged or allow for constant water to soil the module(s) unless it's natural
rain fall or periodic cleaning.
Do not permit constant dew on any part of backsheet of the module.
Handling safety
Do not lift the module by holding the module’s junction box or electrical leads.
Do not place any heavy or sharp objects on the module.
Be cautious when placing the module down onto a surface, particularly when placing it in a corner.
Inappropriate transport and installation may break the module and void the warranty.
Do not attempt to disassemble the modules, and do not remove any attached nameplates or components from the
modules.
Do not apply paint or adhesive to the module top surface or backsheet.
To avoid damage to the backsheet and cells, do not scratch, dent or hit the backsheet. During the transportation, do not to
apply direct pressure on the backsheet or front glass.
Do not drill holes in the frame. This may compromise the frame strength, cause corrosion of the frame and void the
warranty.
Do not scratch the anodized coating of the frame (except for grounding connections at the grounding connection point on
the back side of the module). It may cause corrosion of the frame or compromise the frame strength.
A module with broken glass or torn backsheet cannot be repaired and must not be used since contact with any module
surface or the frame can cause an electric shock.
Work only under dry conditions, and use only dry tools. Do not handle modules under wet conditions unless wearing
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appropriate protective equipment.
When storing uninstalled modules outdoors for any period of time, always cover the modules and ensure that the glass
faces down on a soft flat surface to prevent water from collecting inside the module and causing damage to exposed connectors.
Purpose of this guide
Installation safety
Never disconnect electrical connections or unplug connectors while the circuit is under load.
Contact with electrically active parts of the modules, such as terminals, can result in burns, sparks and lethal shock whether
or not the module is connected.
Do not touch the PV module unnecessarily during installation. The glass surface and the frame may be hot; there is a risk of
burns and electric shock.
Do not work in the rain, snow or in windy conditions.
Avoid exposing cables and connectors to direct sunlight and scratches or cuts in order to prevent insulation degradation.
Use only insulated tools that are approved for working on electrical installations.
Keep children well away from the system while transporting and installing mechanical and electrical components.
Completely cover the module with an opaque material during installation to prevent electricity from being generated.
Do not wear metallic rings, watchbands, earrings, nose rings, lip rings or other metallic objects while installing or
troubleshooting photovoltaic systems.
Follow the safety regulations(e.g., safety rules for working on electrical power plant stations) of your regions and for all
other system components, including wires and cables, connectors, charging regulators, inverters, storage batteries, rechargeable
batteries, etc.
Under normal conditions, a photovoltaic module is likely to experience conditions that produce more current and/or
voltage than reported at standard test conditions. Accordingly, the values of Isc and Voc marked on this module should be
multiplied by a factor of 1.25 when determining component voltage ratings, conductor current ratings, minimum factor of fuse
sizes, and size of controls connected to the PV output.
Only use same connectors to connect modules to form a string, or connect to another device. Removing the connectors will
void the warranty.
Fire Safety
Consult your local authority for guidelines and requirements for building or structural fire safety.
Roof constructions and installations may affect the fire safety of a building; improper installation may create hazards in the
event of a fire.
Use components such as ground fault circuit breakers and fuses as required by local authority.
Do not use modules near equipment or in places where flammable gases may be generated.
The modules have been rated Fire Class C, and are suitable for mounting on to a Class A roof.
Product identification
Each module has three labels providing the following information:
1. Nameplate: describes the product type; rated power, rated current, rated voltage, open circuit voltage, short circuit current,
all as measured under standard test conditions; weight, dimensions etc.; the maximum system voltage is 600 volts ,1000V or
1500 volts depending on the product family DC for UL standard and 1000 volts DC for IEC standard. Depending on the products
some are UL/IEC listed to 1 000 volts and 1500 V while other UL products are 600 volts. Check your nameplate or contact your
local representative for details.
2. Barcode: each individual module has a unique serial number. The serial number has 18 digits. The 15th and the 16th digits are
the week code, and the 17th and the 18th digits are the year code. For example, STP xxxxxxxxxxxxxx2414 means the module was
assembled and tested in the 24th week of 2014. Each module has only one bar code. It is permanently attached to the interior of
the module and is visible from the top front of the module. This bar code is inserted prior to laminating.
Typical serial number barcode label
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3. Sorting label: four different marks are shown on this sticker. "QC Pass" assures that the module has passed the quality control
examination. "HIPOT" means that it has passed the insulation test. Finally modules are sorted out according to their output
current, referred as a corresponding symbol "Ix" attached, in which x takes the value 1, 2 or 3. To get optimal performance out of
a string of modules it is recommended to connect only modules of the same "Ix" class (for example only I2 modules) in one given
string. The function of the "Barcode" please refer to the "Barcode" instruction mentioned above.
Sorting label
Do not remove any labels. Removing a label will make the Suntech warranty void.
Mechanical Installation
Selecting the location
Select a suitable location for installing the modules.
The modules should face south in northern latitudes and north in southern latitudes.
For detailed information on the best installation angle, refer to standard solar photovoltaic installation guides or consult a
reputable solar installer or systems integrator.
Modules should not be shaded at any time. If a module is shaded or even partially shaded, it will fail to perform at ideal
conditions and result in lower power output. A permanent and/or regular shade on the module voids the warranty.
This installation manual is applicable for all PV system of 500 m or more away from the coastline. If you need to install your
system less than 500m from the coast line please refer to Near-coast installation manual (www.suntech-power.com) or contact
Suntech's Customer Support department or our regional representatives.
Do not use modules near equipment or in locations where flammable gases may be generated or collected.
General Installation
Before installing modules check for any optical deviations. Any optical deviations noticed after system installed may void
warranty. Any potential costs for labor, material or other cost such as documentation, safety or performing the (de/ re-)
installation will not be covered.
The module mounting structure must be made of durable, corrosion-resistant and UV-resistant material. Always use a tested
and certified mounting structure approved for your system design.
In regions with heavy snowfall in winter, select the height of the mounting system so that the lowest edge of the module is
not covered by snow for any length of time. In addition, ensure that the lowest portion of the module is placed high enough so
that it is not shaded by plants, trees or damaged by ground soil moved by or through the air.
For ground mounting systems, the minimum distance Suntech recommend from the ground to the bottom of the module is
at least 24 inches (60cm).
Modules must be securely attached to the mounting structure. For Clamping System installation methods, the
recommended maximum compression for each clamp is 2900 PSI (20 Mpa) in order to avoid potential damages to module
frames. Follow the instruction of the clamping system supplier.
Provide adequate ventilation under the modules in conformity to your local regulations. A minimum distance of 10 cm
between the roof plane and the frame of the module is generally recommended.
Always observe the instructions and safety precautions included with the module support frames.
Before installing modules on a roof, always ensure the roof construction is suitable. In addition, any roof penetration
required to mount the module must be properly sealed to prevent leaks.
Dust building up on the surface of the module can impair with the module performance. The modules shall be installed with
a tilt angle no less than 10 degrees, making it easier for dust to be removed by rain. A flat angle requires more frequent cleaning.
Observe and take into account the linear thermal expansion of the module frames (the recommended minimum distance
between two modules is 2 cm).
Always keep the front and backsheet of the module free from foreign objects, plants and vegetation, structural elements,
which could come into contact with the module, especially when the module is under mechanical load.
When installing a module on a pole, select a pole and module mounting structure that will withstand the anticipated wind
load and snow load for the area.
Ensure modules are not subjected to wind or snow loads exceeding the maximum permissible loads, and are not subject to
excessive forces due to the thermal expansion of the support structures. Never allow modules overlap or exceeds the rooftop:
Refer to the following installation methods for more detailed information.
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Installation methods
Modules can be installed on the frame using mounting holes, clamps* or an insertion system. Modules must be installed
according to the following examples. Not mounting the modules according to these instructions may void the warranty.
* The minimum recommended length for each clamp is 50 mm.
Module can be installed in both landscape and portrait modes.
The modules must be properly secured to their support so that they can withstand live load conditions, including positive
and negative load, to the pressure they have been certified for. It is the installer's responsibility to ensure that the clamps used to
secure the modules are strong enough.
Attachment guidelines
Select the proper installation method depending on the load(See below for more detailed information).
All installation methods herein are only for reference, and Suntech will not provide related mounting components. The
system installer or trained professional personnel must be responsible for the PV system's design, installation, and mechanical
load calculation and security of the system.
With different installation methods, the modules have been tested to withstand the loads of 2400 Pa, 3800 Pa and 5400 Pa
according to IEC 61215 standard, equivalent of 1600 Pa (0.232psi), 2500 Pa (0.363 psi) and 3600 Pa (0.522 psi) respectively under
UL 1703 standard.
For each installation, modules can be installed either in portrait or landscape mode. If you integrate our obsolete products
and need advice, please contact Suntech Global Customer Support Department for installation instructions based on older
manuals.
Suntech Standard Module Type
(using 156.75 - 157.4 mm solar cell)
Module Dimension
Length × Width × Thickness
16/T Series (Full cell solar module)
1324 mm × 992 mm × 35 mm
20/W Series (Full cell solar module)
1640 mm × 992 mm × 35 mm
1650 mm × 992 mm × 35 mm
24/V Series (Full cell solar module)
1956 mm × 992 mm × 40 mm
1960 mm × 992 mm × 35 mm
1960 mm × 992 mm × 40 mm
16/T Series (Half cell solar module)
1338 mm × 992 mm × 35 mm
24/V Series(Half cell solar module)
1988 mm × 992 mm × 40 mm
60/W Series (Half cell solar module) 1684 mm × 1002 mm × 35 mm
Module installed
with mounting holes
Module installed
with clamps
Module Frame
M8 Bolt
M8 Nut
Flat
Split washer
M8 Bolt
M8 Nut
Clamps
Mounting structure
Mounting structure
Module
Flat
Split washer
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72/V Series (Half cell solar module)
2008 mm × 1002 mm × 35 mm
2000 mm × 992 mm × 35 mm
78/V Series (Half cell solar module)
2166 mm × 992 mm × 35 mm
Suntech Standard Module Type
(using 158.75 mm solar cell)
Module Dimension
Length × Width × Thickness
A16/T (Half cell solar module)
1354 mm × 1002 mm × 35 mm
A20/W (Half cell solar module)
1680 mm × 1002 mm × 35 mm
A21/W (Half cell solar module)
1762 mm × 1002 mm × 35 mm
A60/W (Half cell solar module)
1684 mm × 1002 mm × 35 mm
A72/V (Half cell solar module)
2008 mm × 1002 mm × 35 mm
A78/V (Half cell solar module)
2178 mm × 1002 mm × 35 mm
Suntech Standard Module Type
(using 166 mm solar cell)
Module Dimension
Length × Width × Thickness
B60/W (Half cell solar module)
1756 mm × 1039 mm × 35 mm
1776 mm × 1052 mm × 35 mm
B72/V (Half cell solar module)
2095 mm × 1039 mm × 35 mm
2115 mm × 1052 mm × 35 mm
B78/V (Half cell solar module) 2204 mm × 1039 mm × 35 mm
Suntech Standard Module Type
(using 180 mm solar cell)
Module Dimension
Length × Width × Thickness
C72/V (Half cell solar module)
2279 mm × 1134 mm × 35 mm
Suntech standard module
1) recommend mounting method
Mounting method*
Mechanical load**
Note: The installation
method is based on the
internal results in Suntech.
Installation location Module type
4 bolts installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
20/W Series
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4 bolts installation
Test load:
positive 5400Pa
negative 2400Pa
Design load:
positive 3600Pa
negative 1600Pa
Safety factor: 1.5
60/W Series
A20/W Series
A21/W Series
A60/W Series
B60/W Series
4 bolts installation
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
20/W Series
60/W Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
B60/W Series
4 bolts installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
16/T Series
24/V Series
4 bolts installation
Test load:
positive 5400Pa
negative 2400Pa
Design load:
positive 3600Pa
negative 1600Pa
Safety factor: 1.5
72/V Series
78/V Series
A72/V Series
A78/V Series
B72/V Series
B78/V Series
C72/V Series
4 bolts installation
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
tracker series***
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.8 bolts installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
20/W Series
60/W Series
A20/W Series
A21/W Series
A60/W Series
4 clamps installation
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
Clamp zone: A=1/4 long frame length±50 mm
16/T Series
20/W Series
24/V Series
60/W Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
B60/W Series
4 clamps installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
16/T series L = 180 mm
20/W series L = 180 mm
24/V series L = 280 mm
A16/T series L = 180 mm
Clamp zone: A = 300 mm
16/T Series
20/W Series
24/V Series
A16/T Series
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4 clamps installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
21/W series L = 220 mm
60/W series L = 200 mm
72/V series L = 300 mm
78/V series L = 390 mm
A20/W series L = 200 mm
A21/W series L = 220 mm
A60/W series L = 200 mm
B60/W series L = 200 mm
A72/V series L = 300 mm
B72/V series L = 380 mm
A78/V series L = 390 mm
Clamp zone: A = 200 mm
60/W Series
72/V Series
78/V Series
A20/W Series
A21/W Series
A60/W Series
B60/W Series
A72/V Series
B72/V Series
A78/V Series
4 clamps installation
Test load:
positive 5400Pa
negative 2400Pa
Design load:
positive 3600Pa
negative 1600Pa
Safety factor: 1.5
B78/V series L = 490 mm
C72/V series L = 380 mm
Clamp zone: A = 200 mm
B78/V Series
C72/V Series
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6 clamps installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
Clamp zone: A0= 1/4 short frame length ±50 mm
A1= 100 mm
16/T Series
20/W Series
24/V Series
60/W Series
72/V Series
78/V Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
A72/V Series
A78/V Series
6 clamps installation
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
Clamp zone: A1= 100 mm
A2= 200 mm
16/T Series
20/W Series
24/V Series
60/W Series
72/V Series
78/V Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
B60/W Series
A72/V Series
B72/V Series
C72/V Series
A78/V Series
Insertion installaiton
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
16/T Series
20/W Series
A60/W Series
B60/W Series
Insertion installaiton
Test load:
positive 5400Pa
negative 3800Pa
Design load:
positive 3600Pa
negative 2533Pa
Safety factor: 1.5
Clamp zone: A = 100 mm
16/T Series
20/W Series
24/V Series
A60/W Series
B60/W Series
A72/V Series
B72/V Series
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2) Customized mounting method
Note: The test mechanical load value are based on Suntech internal test results with specific clamps.
Mounting method*
Mechanical load**
Note: The installation
method is based on the
internal results in Suntech.
Installation location Module type
4 clamps short end
Test load:
positive 5400Pa
negative 1600Pa
Design load:
positive 3600Pa
negative 1067Pa
Safety factor: 1.5
A0=1/4 short frame length±50mm
16/T Series
20/W Series
21/W Series
60/W Series
66/W Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
A66/W Series
B60/W Series
4 clamps short end
Test load:
positive 5400Pa
negative 1600Pa
Design load:
positive 3600Pa
negative 1067Pa
Safety factor: 1.5
A0=1/4 short frame length
±
50mm
24/V Series
72/V Series
A24/V Series
A72/V Series
4 clamps mixed
mounting
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
A≥40mm；
A0=1/4 short frame length±50mm；
A1=280~420mm
16/T Series
20/W Series
21/W Series
60/W Series
66/W Series
A16/T Series
A20/W Series
A21/W Series
A60/W Series
A66/W Series
B60/W Series
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4 clamps mixed
mounting
Test load:
positive 2400Pa
negative 2400Pa
Design load:
positive 1600Pa
negative 1600Pa
Safety factor: 1.5
A≥40mm；
A0=1/4 short frame length±50mm；
A1=360~560mm
24/V Series
72/V Series
78/V Series
A24/V Series
A72/V Series
A78/V Series
B72/V Series
* The module clamps must not come into contact with the front glass or deform the frame in any way. Avoid shading effects from the
module clamps and insertion systems. Drainage holes in the module frame must not be closed or obscured by the clamps.
** The loads of 2400 Pa, 3800 Pa and 5400 Pa are under IEC standard. The installation methods applicable for 5400 Pa are also relevant
for 3800 Pa and 2400 Pa. The installation methods applicable for 3800 Pa are also relevant for 2400 Pa.
*** The mounting holes reserved for tracker mounting system with special accessories.
Electrical Installation
Electrical property
Module under standard testing conditions of: irradiance of 1000W /m2, cell temperature of 25 °C and air mass of AM1.5,
maximum over-current protection is 15A.
Under normal conditions, a Photovoltaic module is likely to experience conditions that produce more current and/or
voltage than reported at standard test conditions. Accordingly, the values of Isc and Voc marked on this module should be
multiplied by a factor of 1.25 when determining component voltage ratings, conductor ampacities, fuse sizes, and size of
controls connected to the PV output.
Voltages are additive when modules are connected in series, and modules currents are additive when Modules are
connected in parallel, as illustrated in Figure 1.
Modules with different electrical characteristics must not be connected directly in series.
Series wiring
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Parallel wiring
Figure 1: Electrical diagrams of series and parallel wiring.
The maximum number of Modules that can be connected in series within a string must be calculated in accordance with
applicable regulations in such a way that the specified maximum system voltage (The maximum system voltage of bifacial
module is DC 1500V) of the modules and all other electrical DC components will not be exceeded in open-circuit operation at the
lowest temperature expected at the PV system location.
Correction factor for the open-circuit voltage can be calculated based on the following formula: CVoc=[1-α(25-T)]%. T is the
lowest expected ambient temperature at the system location. α(%/°C) is the temperature coefficient of the selected module
Voc(Refer to corresponding datasheet).
Dimension
Maximum system voltage
Maximum number of modules
1658×992×6mm
1500V
35
1968×992×6mm
1500V
29
Note: The data above are calculated based on the temperature in Wuxi. The maximum number of modules that can be
connected in series within a string for the specific project must be calculated based on the actual local temperature.
If there is reverse current exceeding the maximum fuse current flowing through the module, use over- current protection
device with the same specifications to protect it.
Recommended installation method of full cell solar module:
The modules in PV array are recommended for portrait connecting, and cable length is not less
than 0.7 m.
Recommended installation method of half cell solar module:
The head and tail of the modules in PV array are placed in a cross layout, and cable length is not
less than 0.65 m.
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Mechanical Installation
General installation
Any hardware used must be compatible with any other used material to avoid galvanic corrosion. Defects caused by
corrosions void the warranty.
It is not recommended to use modules with different configurations (grounding, wiring) in the same system.
Excessive cables must be organized or fixed in an adequate way, e.g. attached to the mounting structure by using
non-metallic cable ties. Solar cables, connectors and juction boxes should not be exposed to water exposure, and snow, and rain
or water submersion for a long period of time(IP65/67/68).
For applications requiring high operating voltage several modules can be connected in series to form a string of modules;
the system voltage is then equal to the sum of the voltage of each module.
For applications requiring high operating currents several strings of modules can be connected in parallel; the system
current is then equal to the sum of the current of each string of modules.
The maximum system voltage is 600 volts ,1000 volts or 1500 volts depending on the product family DC according to standards.
The maximum number of series connected modules depends on system design, the type of inverter used and environmental
conditions.
Based on the maximum series fuse rating of module and local electrical installation code, always make sure Suntech PV
modules are assembled with the appropriate string fuse for circuit protection.
There is no specific limitation on the number of modules that can be connected in parallel, the number of modules is
determined by system design parameters such as current or power output.
To prevent the cables and the connectors from overheating, the cross section of the cables and the capacity of the
connectors must be selected to suit the maximum system short circuit current. The recommended cable is PV wire with a cross
section of at least 4mm2.
Caution: do not secure the cables too tight. Any cable damage caused by cable management system is not covered under
Suntech's warranty.
Always refer to the cable manufacturer's bending radius which includes the radius just behind the connectors.
When designing large modules arrays connected to a single inverter, always take into account the resulting isolation
resistance (Riso), which decreases increasing the number of modules in the array. A too low Riso can results in inverter faults.
Please refer to local regulations to determine the system wires size, type and temperature.
Suntech modules are supplied with connectors used for system electrical connections. The recommended connectors are
TL-CABLE01S connectors, Amphenol H4 connectors, Multi Contact MC4 connectors etc. Suntech strongly recommends using the
genuine connector type specified by Suntech's product data sheet. Any choice of a different connector type other than specified
may void the warranty of the module.
To ensure reliable electric connection and to prevent possible intrusion of humidity, two connectors must be mated and
locked together until a click can be heard.
Long-term exposure to wet environments may cause connectors' poor connectivity, resulting in current leakage and poor
conductivity which voids the warranty. Suntech recommends proper connector/cable/wire management to prevent moisture
intrusion. Depending on the amount of humidity, Suntech recommends periodic inspections of the installation system to
maintain optimal module performance.
The DC current generated by photovoltaic systems can be converted into AC and fed into a public Grid. As local utilities’
policies on connecting renewable energy systems to the Grids vary from region to region. Always seek the advice from a
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qualified system designer or integrator. Building permits, inspections and approvals by the local utility are generally required.
Especially for larger installations Suntech recommends lightning protection following the local requirements and
regulations.
When the installation finished and after connecting to the grid, please do a professional hand over to the owner including
an installation protocol is required. Provide a clear documentation of the system to the owner consisting of following minimum
data such as: user guide, system layout, data sheets, performance expectations, electrical system data e.g. a copy of the
installation test report following minimum requirements of IEC 62446 / IEC 60364-6.
Grounding
For grounding and bonding requirements, please refer to regional and national safety and electricity standards. If
grounding is required, use a recommended connector type for the grounding wire.
For grounding, this guide refers to module frame grounding. If grounding is required, make sure module frames (metal
exposed to touch) are always grounded.
Suntech recommends always refer to local state and national code requirements for PV module grounding. Suntech highly
recommends negative grounding if it's allowed by local authorities.
When attaching the frame grounding hardware and wire to the frame it must be placed corresponding to the ground
symbol stamped location to ensure proper electrical connection.
Suntech recommends one of the following parts for grounding:
1) Use M5 bolt and washer to bond the ground wire and aluminum frame through the grounding hole (as shown below).
The tightening torque is 3-7Nm. All nuts and washers should be made of stainless steel. 4-14 mm2(AWG 6-12) exposed copper
wire recommended as ground wire.
2) Use WEEB-DPF to bond solar modules to module mounting brackets (grounding part is tested to UL467)
Notice that WEEB teeth is positioned completely under the edge of the module frame.
When position of solar module is finalized, torque fasteners to 20.5 N-m/15 ft-lb using general purpose anti-seize on threads.
For more information, please contact supplier: BURNDY, http://www.we-llc.com
3) Use Schletter clamps to bond solar module to module mounting brackets (grounding part is tested to UL467).
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Recommend fastening torque is 20.5N-m/15 ft-lb.
For more information, please contact supplier: Schletter, http://www.solar.schletter.eu
Maintenance
To ensure optimum module performance, Suntech recommends the following maintenance measures:
Clean the module minimum once a year or more often when required depending of the pollution. Remove all organic from
the surface. Module with soiling or contamination may reduce the power generation of the system. Always use clean water and
a soft non-abrasive sponge or cloth for cleaning. A mild, non-abrasive cleaning agent may be used to remove stubborn dirt.
Uncontrolled pollution is voiding the warranty or not cleaning the modules in time voids the warranty.
Check the electrical, grounding and mechanical connections every six months to verify that they are clean, secure,
undamaged and free of corrosion. Or else the warranty may be voided.
In the event of a ground fault condition, NEVER wash or spray modules with water until ground fault has been identified,
corrected by an authorized solar inverter service technician and the inverter is fully operational. This can cause electrocution or
a serious safety issue.
If any problem arises, consult a professional solar service providers for suggestions.
Caution: observe solar manufacturers' maintenance instructions for all components used in the system, such as support
frames, charging regulators, inverters, batteries etc.
Product list
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20200601 版本 No.
目录
安全指南 •••••••••••••••••••••••••••••••••••••••••••••• 15
总体安全
操作安全
安装安全
消防安全
产品鉴别 •••••••••••••••••••••••••••••••••••••••••••••• 16
机械安装 •••••••••••••••••••••••••••••••••••••••••••••• 16
场地选择
常规安装
安装方式
安装指南
电气安装 •••••••••••••••••••••••••••••••••••••••••••••• 23
常规安装
接地
维护 •••••••••••••••••••••••••••••••••••••••••••••••••••• 25
*请仔细阅读。该文件对任何保修情况都具有约束力。
*距海岸线 500 米内安装光伏系统，请参考近海安装手册。
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安全指南
本指南包含有关无锡尚德太阳能电力有限公司光伏组件（以下简称为“组件”）的安装方式和安全操作的相关信息。无锡尚德太阳能电力
有限公司简称为“尚德”。
安装人员在安装前必须阅读并理解该指南。如有任何问题，请联系尚德全球质量与客户支持部门或我们当地代表获得更详细的信息。
安装人员必须遵循本指南中说明的所有安全预防措施、当地要求和法律或授权机构的规定。
在安装太阳能光伏系统前，安装人员应当熟悉其机械和电气要求。将本指南存放于安全处用于日后参考（维护和保养）以及在将组件
出售或处理时使用。
尚德组件通过了全球检测和认证机构的测试。不同地区的光伏太阳能组件的安装有不同规定。其中通过“IEC”认证的组件适用于欧洲、
中东及大部分亚太国家；通过“UL”认证的组件适用于美国、加拿大；其余的全球通用。
总体安全
组件适用于大于50伏直流电压或240瓦功率以上的系统，通过IEC 61730-2标准即符合安全等级II才可以用于安全安装（仅IEC）。
光伏组件推荐安装海拔不超过2000米。
安装光伏系统需要专业技术和知识。安装只能由有资质的人员进行。
安装人员必须承担所有在安装过程中可能出现的危险，包括但不限于电击危险。
单块组件在阳光直射的条件下可产生超过30伏的直流电。与直流电接触有很高的潜在风险，请在任何情况下都避免接触直流电。
请勿在工作状态下断开组件和任何电器件的连接。
光伏组件通过阳光照射可以产生电流。许多组件串联可能导致致命的触电和灼伤危害。只有经过授权和培训的专业人员才能进行组件
的安装工作。
光伏组件将光能转化成直流电能，它们适用于户外安装。组件可以安装在地面或屋顶上。系统设计师和安装人员负责支撑结构的合理
设计。
安装系统时，须遵守所有当地、地区性和国家级别的法定法规。如有必要，请取得安装许可证。
组件在标准测试条件下，铭牌所标称的电性能参数与实际值有±3%的偏差。（辐照度1000 W/m²，
AM 1.5光谱，电池温度为25 °C (77 °F)）。
光伏发电系统只能使用与之相匹配的设备、连接器、接线和支架。
请勿使用反光镜或其他放大镜将阳光直接聚焦于组件上。
在183 cm或更高处作业时必须有防坠落保护措施。遵守职业安全和健康法案（OSHA）或当地有关坠落保护的安全规定（仅UL）。
请勿坐于、站立于、踩踏或行走于组件之上，包括支架。
除自然降雨或者阶段性组件清洗外，请勿将组件的任何部位浸泡在水中或者持续用水冲击组件。
操作安全
请勿抓住组件接线盒或引出线提起组件。
请勿使组件掉落或使物体坠落于组件上。
请勿在组件上放置任何重物或尖锐物体。
组件要轻拿轻放。
不恰当的运输或安装可能损坏组件并使质保无效。
请勿拆解组件及组件上的铭牌。
请勿在组件玻璃或背板上使用油漆或粘合剂。
为避免损坏背板和电池，请勿刮擦、撞击或使背板产生凹痕。运输时，请勿直接施压于组件的背板或玻璃。
请勿在边框上钻孔。这可能破坏边框的强度，导致边框生锈并使质保无效。
请勿刮擦支架的阳极处理层（除了组件背面接地连接点的接地连接处）。这可能导致边框生锈或破坏边框的强度。
组件破损后将无法修复并可能导致触电，禁止使用已损坏的组件，如已有损坏的玻璃或背板等。
只能在干燥环境中作业，且只能使用干燥的工具。请勿在未佩戴任何保护措施的条件下在潮湿的环境中作业。
如需在户外将未安装的组件存放一段时间，须始终遮盖组件并保证玻璃面向下且置于柔软平面上，防止组件内部积水和连接器的损坏。
安装安全
请勿在电路有负载的情况下打开电气连接处或拔出连接器。
如果触碰组件带电零部件，例如连接器，无论面板是否已接通，可能导致烧伤、火星和致命电击。
在安装过程中请勿在不必要时触碰组件。玻璃表面和支架可能有产生高温；会产生烧伤和电击危险。
请勿在下雨、下雪或大风天气情况下安装组件。
为防止组件绝缘效果降低，请避免刮擦、切割电缆和连接器或使其长期暴露在阳光下。
只能使用符合相关电气安装标准的绝缘工具。
运输和安装相关组件时请使儿童远离该系统。
安装时使用不透明材料将组件完全盖住，防止产生电损。
安装或修理光伏系统时请勿佩戴金属戒指、腕表、耳环、鼻环、唇环或其它金属物质。
遵守当地的安全规定（例如，关于操作发电站的安全规定）和关于系统其它部件，包括接线和电缆、连接器、充电调节器、逆变器、
蓄电池、可充电的电池等的安全规定。
正常情况下，一块光伏组件产生的电流和/或电压可能比标准试验条件下产生的多。因此在计算组件额定电压、额定电流、保险熔断和
连接至PV输出的控件规格时，应当将标记在该组件上的Isc和Voc的值乘以1.25的系数。
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连接组件时只能使用相同型号的连接器连接到其它设备上。将连接器移除将使质保无效。
安全指南
消防安全
咨询您当地的部门获得关于安装或建筑消防安全方面的指导和要求。
顶层结构和安装可能影响建筑的消防安全；不恰当的安装可能导致火灾危险。
在当地部门要求下，使用例如接地故障断流器和保险丝之类的设备。
请勿在可能产生可燃性气体的环境中或设备附近操作面板。
该组件的防火等级为C，适合安装于类别A的屋顶上。
产品鉴别
每个组件有三个标签，提供下列信息：
1. 铭牌，说明了产品类型；额定功率、额定电流、额定电压、开路电压、短路电流，重量、尺寸等所有数值均在标准检测条件下测量得出；
对于UL标准而言，系统最大电压为600伏,1000伏和1500伏，取决于组件的直流电流，对于IEC标准而言为1000伏和1500伏直流电压。有些UL/IEC
产品表示其最大电压为1000伏和1500伏，而其它UL产品为600伏。检查您的产品铭牌或联系您的当地代表获得详细信息。
2. 条形码:每个单一的组件有一个专属的序列号。该序列号有18位数字。第15位和第16位是周数编码，第17位和第18位是年份编码。例如，
STP xxxxxxxxxxxxxx2414 表示组件在2014年第24周组装和检测。每个组件只有一个条形码。它将永远黏贴在组件内部，并且可以从组件前
部顶端看到。该条形码在层压前被插入。
条形码标签
3. 分档标签:该标签上显示了四个不同的标志。“QC Pass”确保组件已通过了质量控制检查。“HIPOT”表示已通过了绝缘测试。最后根据组件
的输出电流将组件筛选，由相应的“Ix”符号表示，其中x表示值1,2和3为使组件串获得最优性能，建议只在一个串中选用“Ix”类别相同的组件，
（例如只有I2组件）。“条形码”的作用请参考上述“条形码”介绍。
分档标签
请勿取下任何标签。取下任一张标签将导致尚德质保无效。
机械安装
场地选择
为组件的安装选择合适的场地。
组件在北纬下应面朝南，南纬下面朝北。
如需关于最佳安装角度的详细信息，请参考标准太阳能光伏安装指南或咨询专业太阳能安装人员和系统集成商。
组件在任何时间都不应被阳光遮挡。如果整个或部分组件被遮挡，它将无法在理想条件下发挥性能并导致较低的功率输出。组件持
久或经常性地被遮挡住阳光将损坏组件并使质保无效。
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