Solar Panel Installation Structure Guide

The development of the photovoltaic business is increasing. Choosing the right photovoltaic bracket is essential for the safe and efficient operation of the solar power system. There are two types of solar panel mounts: ground and roof mounts. To choose the appropriate PV mounting bracket, consider the project site and its application scenario. Now ADNLITE will introduce how to do it.

Precautions For Solar Panel Bracket

1. The installation structure of the solar panel bracket should be simple, strong, and durable. The material of the photovoltaic array bracket must withstand various harsh environments on the project site to ensure 25 years of weather resistance, corrosion resistance, and structural strength. Electroplated aluminum profiles, electroplated and stainless steel are all ideal choices. Meanwhile, the bracket welding must meet the national standard “Code for Acceptance of Construction Quality of Steel Structure Engineering” (GB50205-2001). The weight of the array bracket should be reduced as much as possible when it meets the design requirements to facilitate transportation and installation.

2. During the construction of the photovoltaic array foundation and support, as much as possible, it is necessary to avoid damage to related buildings and ancillary facilities. If local damage is unavoidable due to construction needs, it should be repaired in time after the completion of the construction.

3 When installing photovoltaic arrays on the roof, the embedded parts of the base should be firmly welded or connected to the main structure of the roof. If welding or connection is impossible due to structural restrictions, measures should be taken to increase the adhesion between the base and the top. And use the wire tensioning method or bracket extension fixing method to fix. After the foundation is made, the damaged roof or the involved parts should be waterproofed in accordance with the requirements of the national standard “Roofing Engineering Quality Acceptance Specification” (GB50207-2002) to prevent water seepage and rain leakage.

4. The frame and support of the photovoltaic cell module should be reliably connected to the grounding system.

Fixed Form of Ground Installation of Solar Power System

1. Hammer Into The Ground

Measure the distance at the installation site, and drive the column into the ground directly using the pile driver, which is convenient and quick. Before installation, geological and soil testing is required to determine the appropriate penetration depth.

The following types of profiles are suitable for hammer-in-ground piles, which can be selected according to actual conditions:

Hammer Into The Ground

Advantages:

  • Fast and adaptable;
  • Cost-effective;
  • Not restricted by seasonal temperature;
  • It is convenient to remove the piles and does not affect the reuse of the installation site.

2. Spiral Pile

Spiral piles can be used when hammering the column directly into the ground is inconvenient because the installation site is too hard or there are too many crushed stones. Drive the screw-in steel pipe into the ground, and then fix the column on it.

Spiral Pile

Advantages:

  • Adaptable, Flexible;
  • Not restricted by seasonal temperature;
  • It is convenient to remove the piles and does not affect the reuse of the installation site.
  • 3: Precast cement foundation

You can make a cement foundation if the installation site is unsuitable for plug-in piles. The brackets are placed on the cement foundation and fixed with bolts.

Advantages:

  • High strength and high precision;
  • Strong adaptability to the ground.

4. Direct Cement Pouring

Another form of cement foundation is to pour the bracket and cement together directly. Compared with the above, this method saves time for bolting and fixing but requires higher positioning accuracy of the support column during pouring.

Advantages:

  • High strength and high precision;
  • Strong adaptability to the ground.

Bracket Form for Ground Installation

1. Ground Plug-in

Ground Single Column 1

Features:

1:The main body of the bracket is made of structural steel, the surface is hot-dip galvanized, and the service life is more than 20 years.

2: Good compatibility of various parts and easy installation.

3: Easy maintenance.

4: Strong adaptability to the ground.

2. Ground Truss

Ground Truss

Features:

1: Use screw piles, which are easy to operate.

2: Adapt to many different types of geology.

3: The beam adopts a reinforced design aluminum guide rail.

4: The aluminum guide rail is designed with slots for installing solar panels, which is easy and convenient to install and fix.

3. Ground Single Column

Ground Truss 2

Features:

1: Using supporting aluminum guide rails specially designed for installing crystalline silicon modules makes installing and fixing solar modules very convenient and reduces installation time.

2: Columns, beams, and other load-bearing parts have been strengthened to meet the requirements of large loads.

3: The wiring groove is integrated into the beam to make the construction more convenient.

Single-axis Tracking Bracket

A tracking system that rotates around a one-dimensional axis so that the plane of the photovoltaic module is as vertically incident as possible by the sun’s rays.

Single-Axis Tracking Bracket 1

Single-Axis Tracking Bracket 2

Structure Features:

1: Self-balancing structure reduces mechanical wear and extends motor life.

2: Driven by a slewing gear reducer, no gap.

3: Simple structure, easy to install and maintain.

4: The fragile and consumable parts are made into standard products, and the motor is easy to maintain and replace.

Control Part Features:

1: No shadow occlusion by neighboring systems during the whole tracking process.

2: The tracking system has a night self-return function.

3: The Time control method is adopted according to the sun’s trajectory.

4: It protects against strong wind and heavy snow to improve the safety performance of the power station.

5: With network monitoring function, realize centralized control, suitable for large power stations.

Dual-axis Tracking Bracket

The dual-axis tracking system can be divided into time and light control types according to the control mode.

According to the geographical location and local time, the incident angle of sunlight is calculated in real-time. The photovoltaic module is adjusted to the specified angle through the control system, also called astronomical or clock control mode.

The sensing device measures the incident angle of sunlight to control the rotation of the photovoltaic module and track the incident angle of sunlight, also known as the light-sensing control method.

Dual-axis Tracking Bracket

Mechanical Part Features:

1: Non-eccentric structure: The center of gravity of the grid coincides with the axis of the mechanical structure to maintain the balance of the positive and negative torques, reduce the motor’s power consumption, and extend the service life of the machine and the motor.

2: Weightlifting structure: reduce the vibration of the grid under the running state and improve the wind resistance performance.

3: Two sets of slewing bearings: good anti-torque performance and stable system.

Control Part Features:

1: Automatic time-controlled tracking according to the astronomical algorithm of the sun’s trajectory, with high tracking accuracy, and not affected by external environments such as weather.

2: Standard industrial plug, with anti-terror insertion and reverse insertion function, easy to install.

3: All external interfaces adopt photoelectric isolation measures, with strong anti-interference ability and stable operation.

4: Industrial communication interface can easily form a monitoring network and realize the function of centralized control.

Roof Solar Power System Bracket

Flat Roof Fixed Form

The flat roof installation system is suitable for outdoor use or when the flat roof has a large load.

Basic Form

Basic Form

Features:

1: Suitable for crystalline silicon components of any specification and some thin-film components.

2: Embedded anchor bolts on the installation surface or similar cement foundation.

3: Design the installation angle according to actual needs.

Heavy Load Type

Heavy Load Type

Features:

1: No damage to the original waterproof layer. No need for waterproofing.

2: Suitable for crystalline silicon components of any specification and some thin-film components.

3: An adjustable load frame is installed on the bottom frame, and cement blocks, stones, etc., are placed on it.

4: Design the installation angle according to actual needs.

Deflector Type

Deflector Type

Features:

1: Suitable for flat roofs with small loads.

2: Module installation inclination 10-15°.

3: The deflector material uses stainless steel or aluminum-magnesium-zinc plate.

4: No damage to the original roof. No need to worry about water leakage.

Color Steel Tile Roof Solar Panel Installation System

Color steel plate roofs are usually installed in non-penetrating ways such as buckles, concealed buckles, and overlocking. In special cases, they can be installed through penetration.

First, understand what a color steel roof is: steel formed by cold pressing or cold rolling of a thin steel plate. The steel plate adopts an organic coating thin steel plate (or color steel plate), galvanized thin steel plate, anti-corrosion thin steel plate (including asbestos asphalt layer), or other thin steel plates.

Color Steel Tile Roof

Color Steel Tile Fixing Seat

Color Steel Tile Fixing Seat

Installation Precautions

1: First, repair the roof with wooden or bamboo board construction plank roads to prevent the material from being directly stepped on the roof slab during the secondary transportation, which will cause the roof slab to be deformed, and the sealant will come off and leak water.

2: Identify the position of the original structure roof purlin, and mark the specific position with the elastic ink line. The connection between the bracket and the color steel plate must be at the roof purlin position.

3: The construction personnel must wear insulated soft-soled shoes and walk through the troughs on the roof. Remove the sundries on the roof slab every day to prevent rust and scratches on the roof slab.

4: You must be aware of anywhere that needs sealing paste. After installing the outer roof panel, remove all the debris and iron filings on the roof. If the roof panel coating is scratched, repair it with a color board special repair paint. If the rivets and self-tapping screws are empty, you should repair them with rivets and sealing paste at any time and not damage the rubber gaskets.