What is the weight per length requirement for a Class II copper main lightning conductor?

The weight per length requirement for a Class II copper main lightning conductor is 375 pounds per 1,000 feet. This specification is established by industry standards to ensure adequate conductivity and mechanical stability in the event of a lightning strike. A conductor with this weight ensures that it can handle the thermal and mechanical stresses induced by lightning, as well as provide effective grounding.

A Class II conductor is heavier than a Class I conductor, which correlates to its ability to carry larger currents and withstand the forces generated during a lightning event. The weight requirement also takes into consideration environmental factors and longevity of the installation, providing assurance that the conductor will perform reliably over time. This standard helps to maintain safety and efficacy in lightning protection systems.