What type of insulation is commonly used for low-voltage wire?

Polyvinyl chloride (PVC) is commonly used for low-voltage wire insulation due to its beneficial properties. PVC provides excellent electrical insulation, resistance to abrasion, and durability against environmental factors such as moisture and chemicals. Its versatility allows it to be used in various applications, including residential and commercial wiring systems.

In low-voltage cabling, where reliable insulation is crucial to prevent shorts and maintain signal integrity, PVC remains a popular choice because it is cost-effective and easy to work with. Its flame-retardant properties further enhance safety in installations where wire insulation must comply with certain fire standards.

While other insulations, like rubber, thermoplastic elastomer, and polyethylene, are also used in some low-voltage applications, they typically serve more specialized purposes. For instance, rubber is often more flexible and resistant to extreme temperatures, making it suitable for specific environments. Thermoplastic elastomer offers a balance between rubber and plastic, while polyethylene is known for its low dielectric constant and high resistance to moisture, making it ideal for specific types of low-voltage cables, such as those used in outdoor settings. However, PVC remains the most common choice overall for general low-voltage wiring needs.