Why low-smoke halogen-free photovoltaic cables preferred by customers?

According to a veteran electrician, Low Smoke Zero Halogen (LSZH) photovoltaic cables are made with a special thermoplastic sheath. The use of thermoplastic or thermoset compounds makes this type of insulation very flame retardant. LSZH materials are most often used in situations where fire safety and reliability are critical. Low Smoke Zero Halogen (LSZH) PV cables are ideal for confined spaces where poor ventilation can be a serious problem, with the advantage of a high safety factor.

"Low Smoke" function

According to the veteran electrician, fires can pose a significant risk in dense urban areas where tunnels are lined with photovoltaic cables. As we all know, the dangerous ingredient in the initial stage of a fire is not the flame, but the smoke. In areas with restricted ventilation, rapid accumulation of smoke can quickly lead to casualties. Even with ventilation systems, dense smoke can greatly reduce visibility and can obscure exits and escape routes.

Low Smoke Zero Halogen (LSZH) is a low smoke jacket material that produces virtually no smoke in a fire. It consists of a thermoplastic compound that emits no or very little white smoke when exposed to high temperatures. Low-smoke halogen-free (LSZH) photovoltaic cables offer excellent physical and electrical insulation properties while also offering premium flame retardancy.

"Halogen-free" function

Combustion of common sheathing materials produces large amounts of toxic and corrosive gases. Most standard PV cables contain halogens such as chlorine, bromine and iodine in their jackets. When this sheathing material burns, it produces toxic chemical fumes that are harmful to your health and can cause suffocation. These toxic gases can also combine with water, such as firefighters' extinguishing water or moisture in a person's airways, to form corrosive acids. Inhaling these toxic fumes can cause permanent damage to the throat and lungs, and lead to complex breathing problems.

On the other hand, LSZH PV cables contain no halogens in their jackets, so the amount of harmful gases and chemicals produced when burning is significantly reduced. While some gases are still released when the jacket material is exposed to high temperatures, these gases are non-toxic and do not produce corrosive fumes. Another benefit is that LSZH PV cables are composed of environmentally safe materials.

Increased fire safety with LSZH PV cables
 
Low-smoke halogen-free photovoltaic cables are especially suitable for use in confined spaces where personnel or sensitive electronic equipment are present. Typical examples of such spaces are submarines, aircraft, tanks and railroad cars, which is why the military was one of the first groups to start using LSZH PV cables extensively. In addition to being standard practice for wiring in military service, LSZH PV cables are also suitable for central offices and other locations with extensive wiring needs.

Low-smoke halogen-free photovoltaic cables do not emit toxic gases and maintain visibility even in confined spaces. They also ensure the smooth operation of electrical equipment that may be vulnerable to damage by corrosive gases and fumes. Additionally, LSZH PV cables are self-extinguishing, which inhibits the spread of flames to a larger area.

Summarize
 

Another problem with LSZH sheathing materials is the abundance of insulating compounds available. Low-smoke insulation produces toxic halogens, and zero-halogen insulation produces dense smoke when burned. Therefore, for applications where both safety and performance are important, wiring solar systems with LSZH PV cables is the smartest choice.

Above is the introduction of "the functions and advantages of low-smoke halogen-free photovoltaic cables, and the use of which can improve fire safety performance", I hope it can help everyone! It is recommended to continue to pay attention to JZD Cable to learn more about wire and cable information.