The price of courtyard lights varies by specification, and some lamp posts require embossing or other special shape treatments. The lamp bases of solar courtyard lights are typically made of die-cast aluminum. There are also major copper or alloy products in the garden lighting market. Aluminum and other materials are usually handcrafted, making them more expensive. Transparent components are made from acrylic or printed sheets. These materials have good light transmittance, UV resistance, low yellowing, and a long lifespan.
The lamp posts of solar courtyard lights are made of aluminum or steel, galvanized externally and coated with anti-corrosive and anti-rust treatments. Typically, a fluorocarbon coating is applied to the surface, with UV-resistant powder added to enhance the corrosion and oxidation resistance of the electrodes. The color of the lamp post can be produced according to customer specifications.
Solar courtyard lights are installed outdoors. During rainy weather, lightning is inevitable and poses a significant threat. Light can damage solar courtyard lights, and strong light can cause fires or casualties, resulting in substantial losses. The following manufacturers of solar courtyard lights will introduce the impact of lightning on solar courtyard lights and preventive measures:
1. Combination of external and internal lightning protection
Currently, the external part of a typical solar courtyard light is made of conductive materials, equivalent to a lightning rod. In the design, a down conductor and grounding network must be installed. These systems constitute an external lightning protection system that can prevent fires and personal safety incidents caused by direct lightning strikes to solar courtyard lights. The internal lightning protection system protects the equipment inside the solar courtyard lights through grounding and voltage protection. This system can prevent lightning induction and other forms of overvoltage from entering, which could damage the power supply; however, the external lightning protection system cannot guarantee this. They complement each other. The internal lightning protection system must be connected to the external lightning protection system or overvoltage protectors on many devices, such as the chassis, cables, and metal pipes entering and exiting the protection zone, and establish an equipotential connection.
2. Lightning protection module and over-voltage protection module
The function of lightning protection equipment is to connect the protected system to an equipotential system within a short time, ensuring that each port of the equipment is at the same potential. At the same time, the enormous pulse energy generated by lightning in the circuit is released to the ground via a short route, reducing the potential difference at each interface of the equipment, thus protecting the equipment.
3. Establishing a lightning protection zone
In addition to power supply equipment, solar courtyard lights will also be equipped with communication devices to control the operation and brightness of the lights. These devices and the power supply need to be placed in a lightning protection zone that is directly shielded by the casing. The electromagnetic field here is much weaker.
4. Lightning protection equipotential connection
Completely eliminate the destructive potential differences caused by lightning in solar street lights. Power lines, signal lines, metal pipes, etc., must be connected to overvoltage protectors and also require local equipotential connections at the interfaces of each internal protection area. Equipotential connections must be interconnected and finally linked to the main equipotential connection.
