What is an advantage of porcelain wire nuts over plastic?

Porcelain wire nuts are preferred in certain applications primarily due to their higher temperature resistance compared to plastic wire nuts. This characteristic is significant in environments where electrical connections may be exposed to elevated temperatures, such as near heat-generating equipment or in industrial settings.

The ceramic material in porcelain wire nuts can withstand higher heat levels without degrading or warping, ensuring a more stable and reliable connection over time. This makes them particularly advantageous in applications where safety and longevity of electrical connections are paramount. The use of porcelain can also reduce the risk of melting or failure that plastic components may experience under continuous high-temperature conditions.

While other options may highlight certain benefits, they do not address the critical factor of thermal protection and durability that porcelain wire nuts provide, making them an optimal choice in specific high-heat situations.