Table of Contents
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Table of Contents
Summary of Contents for LONGI LR5-54HTH-430M
- Page 1 LONGi Module Product Manual...
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Page 2: Table Of Contents
Table of Contents 1 / Safety Precautions 2 / Module Introduction 2.1 Schematic diagram of module structure 2.2 Module identification 3 / Modules Transport and Storage 3.1 Transport and storage requirements 3.2 Notes on claims for cargo damage in transit 4 / Unloading and Storage 5 / Unpacking 5.1 Confirmation of mounting system before unpacking modules... - Page 3 6.10.2 Unoccupied mounting holes grounding 6.10.3 Bolt-on grounding 6.10.4 Screw size ST4.8~6.3 6.10.5 Other third party grounding devices 6.10.6 Mounting and fixing precautions 7 / Cleaning 7.1 Cleaning requirement 7.2 General description 7.3 Optimal cleaning time 7.4 Planning of cleaning cycles and sections 7.5 Routine cleaning 8 / Operations and Maintenance 8.1 Module visual inspection...
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Page 4: Safety Precautions
Safety Precautions Do not contact live parts of the module directly. Do not disassemble modules or remove the nameplate or any adhered parts. Do not paint or paste any object on the surface of the modules. Do not focus sunlight on the modules using mirrors or lenses. - Page 5 Safety Precautions Do not place or throw weights on or onto the modules to avoid damaging the glass. No bumping of modules. Metal jewellery is prohibited near the modules. The use of non-insulated tools are prohibited. No installations in rain. The modules need to be reliably grounded.
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Page 6: Module Introduction
Module Introduction 2.1 Schematic diagram of the module structure Schematic diagram of the monofacial module structure 1.Frame 2.Glass 3.EVA 4.Solar Cell 5.Back Sheet 6.Silica Gel 7.Junction Box 8.Nameplate 9.Cables 10.Connector 11.Mounting Hole 12.Grounding Holes 13.Drain Holes 14.Barcode Bifacial Modules (With Frame) - Page 7 Module Introduction Bifacial Modules (Frameless) Schematic diagram of the bifacial module structure 1.Frame 2.Front Glass 3.EVA/POE 4.Solar Cell 5.Back Glass 6.Sealant 7.Junction Box 8.Nameplate 9.Mounting Holes 10.Grounding Holes 11.Drain Holes 12.Barcode Module electrical diagram...
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Page 8: Module Identification
Module Introduction 2.2 Module identification Nameplate: Information on module parameters, including rated power, rated current, rated voltage, open-circuit voltage, short-circuit current under standard testing conditions, certification indicator, maximum system voltage, etc. Monofacial Modules Bifacial Modules Diagram of nameplate location... - Page 9 Module Introduction Current classification: The current is divided into 3 classes： H for the high class, M for the middle class and L for the low class. The best practice is to only use modules with the same power and current class within the same string during installation. Diagram example of current classification...
- Page 10 Module Introduction Barcode: Every module is marked with an unique serial number for traceability. Diagram of barcode location The patterns and contents of the above barcode and nameplate are for demonstration purpose only.
- Page 11 Module Transport and Storage 3.1 Transport and storage requirements LONGi solar photovoltaic modules are packed with a layer of plastic film on the outside of the pallet, which provides basic dust and water protection for the mod- ules. For long distance transport or long time site stor- age, do not unpack pallets.
- Page 12 Module Transport and Storage The packed modules can be transported by road, sea or air. Please ensure that the packed modules do not roll or slide during transport. It is preferable to secure the pallets to the transport platform. The modules should be prevented from falling from higher ground.
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Page 13: Modules Transport And Storage
Modules Transport and Storage Stepping on top of pallets and modules is prohibited. To open the pallet, please follow the steps in 5.3 Unpacking steps. The packaging materials are recyclable. It is forbidden to store the modules together with corrosive chemicals or gases. Pay close attention to fire prevention and keep the storage temperature within -40~+85 °C. -
Page 14: Notes On Claims For Cargo Damage In Transit
10 days after arrival to project site. LONGi will not be liable for any damage to the modules due to irregular transfer, re- versal or handling operations on site, but may provide replacement at the custom-... -
Page 15: Unloading And Storage
Unloading and Storage Upon arrival of the modules, check for the following items: - whether the rain cloth protection of the vehicle is in place - whether the appearance of the cardboard packaging is intact - whether there is rain damage on pallets - condition of the transport vessel is intact - position of ropes/straps are in place - whether full trays have shifted (skewed or broken pallets/parts) - Page 16 Unloading and Storage Efficient Intention Specialities Safety When unloading with a special forklift , select forklift fork length appropriately for pallet size. The fork must be at least 90% in contact with the pallet surface . When the forklift is running, please avoid fierce vibrations on rough terrain or backrest significant tilting at one end.
- Page 17 Unloading and Storage When using a crane to unload the modules, special lifting tools must be used. The lower support bar of the sling must be rectangular steel, and the width of the rect- angular steel must not be less than 8cm.Round steel is not allowed to be used to avoid stress concentration damage at the bottom of the pallet and the risk of tip- ping due to the rolling of the round steel.
- Page 18 If there is any damage to the packaging of the outer pallets , photos must be taken to retain evidence (damaged pallets, license plate number, container number). Inform the driver to confirm and note the damage details on the receipt, and provide relevant evi- dence photos to inform LONGi sales staff. Container Package...
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Page 19: Unpacking
Unpacking 5. 1 Confirmation of mounting system before unpacking of modules The mounting system are installed in accordance with the construction specifications and drawings, and the beams and purlins must be securely connected and fixed. The PV racking should be installed neatly, aesthetically pleasing, and without distor- tion, which may affect the installation quality of the modules. -
Page 20: Unpacking Steps
Unpacking Determine the current class shown on the module frame and install modules of the same current class in the same area (array, combiner box). When unpacking, be careful of edges of the frame, blades or other sharp objects to avoid cutting yourself or others. For safety reasons, it is forbidden to unpack the upper pallet while they are stacked. - Page 21 Unpacking Remove the external straps and shrink wrap. Find the joint of the strapping and easily separate it by tugging on each end of the joint with both hands and applying force in opposite directions (or use an utility knife). Remove the protective film.
- Page 22 Unpacking Lift the modules: two persons hold the two short sides of the module and lift the to it designated place simultaneously. Protective gloves must be worn during the unpack- ing process to avoid cutting hands. Do not touch the glass surface with fingers to avoid leaving fingerprints on the glass surface.
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Page 23: Module Installation
Module Installation 6.1 Placement precautions before installing modules Slightly place the module on the brackets. Do not allow the back of the module to come into contact with the metal frame to avoid scratching of the backsheet. This may allow moisture ingress and compromise its insulation functions, or create micro-cracks on the module, affecting its power output and reliability. -
Page 24: Electrical Performance Safety
Module Installation 6.4 Electrical performance safety LONGi products can produce DC current under illumination, so there is a risk of elec- tric shock or burns when touching the wiring metal of the module connections. Any contact of 30V or higher DC voltage can be fatal. -
Page 25: Installation Conditions
In the event of LONGi modules are installed 50m –500m away from the ocean, stainless steel or aluminum materials should be used to contact the PV modules, and the connection point should be protected with anti-corrosion measures. -
Page 26: Selection Of Tilt Angle
PV module installer for the specific installation angle. LONGi suggests that tilt angle of module installation should be no less than 10 ° , so dust on module surface can be washed away easily by rainfall and the frequency of cleaning can be reduced. -
Page 27: Installation Method
6.8 Installation method Modules can be mounted using mounting holes in frame, with clamps or other ap- proved mounting systemd can be found in the LONGi Solar PV Module Installation 6.9 Electrical installation 6.9.1 Electrical performance When modules are in series connection, the string voltage is the sum of the voltage of each module in one string. -
Page 28: Cables And Wiring
Module Installation The electrical installation, cable wiring, grounding, commissioning and testing of the electrical system shall be in accordance with the relevant local electrical stan- dards and regulations of the country / region of installation. For example,if installed in China, the electrical installation shall comply with the relevant require- ments of GB/T50794-2012 code of practice for the construction of photovoltaic power plants, the cable wiring shall comply with the relevant requirements of GB501168 construction and acceptance of cable wiring for electrical installation... -
Page 29: Bypass Diodes
Please note that bypass diode is not the overcurrent protection device. If the diode is defective or suspected to be defective, the installer or system mainte- nance supplier shall contact LONGi. Please do not try to open the module junction box on your own. - Page 30 Module Installation 6.9.5 Notes on electrical connections PV modules are powered under illumination, which may cause injury with a voltage of 30VDC or more. Do not contact any metallic connector or internal components. To avoid arcing and electric shock hazards, do not disconnect the electrical connection under load.
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Page 31: Grounding Clamp
Module Installation Mounting Slot Push Grounding wire Frame Fasten base bolts and keep base Grounding line is at the bottom Cove the base and the line is and frame parallel of line shot clamped tight. 6.10.2 Grounding by unoccupied mounting holes Mounting holes on modules that are not occupied can be used for grounding modules. - Page 32 Screw size between ST4.8 ~ 6.3. 6.10.5 Other third party grounding devices Third party grounding device can be used for grounding of LONGi modules but such grounding shall be proved to be reliable. Grounding device shall be operated in line with stipulations of the manufacturer.
- Page 33 Module Installation Do not drill additional grounding holes on module frame, only existing holes may be used for grounding operations. Material selection: bolts, nuts, screws, washers or other related parts made from stainless steel. 6.10.6 Mounting and fixing precautions Install strictly in accordance with the design drawings, and confirm with the design institute if there is unclear information.
- Page 34 Cleaning 7.1 Cleaning requirements The cleaning process must be carried out only after the PV module has been dis- connected and cooled down. All operational steps must be subject to the neces- sary electrical protective measures. Ensure that the cleaned modules are connect- ed after they have been fully dried.
- Page 35 Cleaning The difference in water and module temperatures must be between -5°C and 10°C, while the water pH value should be between 6 and 8. The use of steam or corrosive chemicals to accelerate cleaning is strictly forbidden. Attempting to clean glass or modules with broken or damaged wires is strictly for- bidden, as it may result in electric shock.
- Page 36 Cleaning 7.5 Routine cleaning Step 1: Dusting Dust the surface of the module with a dry duster or rag to remove any adhering ma- terial such as dry dust, leaves, etc. If the surface of the module is clean and has been cleaned by this step, the following steps can be disregarded.
- Page 37 Operations and Maintenance 8.1 Module appearance inspection Visually inspect the modules for cosmetic defects, specifically: Crasks on module glass. Corrosion on PV cell soldering joints (caused by moisture in the module due to dam- aged sealing materials during installation or transportation). 8.2 Inspection of connectors and cables It is suggested to carry out the following preventive inspection twice a year: Check the tightness of the connectors and cables.
- Page 38 Operations and Maintenance We do not guarantee product safety and technical conformity if the parts and tools used are not specified by LONGi or if preparation and installation operations are ne- glected when installing the modules yourself. To prevent electric shock, the connectors must be disconnected from the power supply when disassembling and assembling.
- Page 39 Operations and Maintenance Crimping of the pin bushing is only necessary to ensure that the metal part is concentric with the cable. After crimping, the tension between the cable and the metal part must be ≥ 310%. Insert the crimped plug into the insulating sleeve of the 1500V socket or plug.
- Page 40 Operations and Maintenance Cable connection Cable wiring Angle is too small Wrong cable schematic Correct cable schematic The minimum bend radius of the cable is 43mm. 8.3 Operation and maintenance considerations Check the module cable connection and the grounding wire are in good con- nection and not dislodged.
- Page 41 Contact LONGi through the LONGi unified service hotline 4008-601012. Contact a LONGi sales representative. Submit inquiries via the LONGi website > service support > service inquiry and one of our technical representatives will contact you within 5 working days. Disclaimer Published in November 2021, this document is managed by the technical services de- partment.
- Page 42 LONGi Solar Technology Co.,Ltd. No.8369,ShangyuanRoad,Caotan Eco-industrial Zone,Xi’ a n Economic and Technology DevelopmentDistrict,Xi’an,Shaanxi,China www.longi.com 710018 4008-601012...