What is a requirement for the outer shield of coaxial cables upon entry into a building?

The requirement for the outer shield of coaxial cables upon entry into a building is that it must be grounded. This grounding is essential for safety and performance reasons.

Grounding the outer shield helps to mitigate electrical interference and protects against potential lightning strikes or surges. By grounding the shield, it allows any induced electrical energy to be safely directed into the ground, minimizing the risk of damage to the equipment or creating a hazard for individuals within the building.

Additionally, proper grounding practices are required to comply with the National Electrical Code (NEC) and ensure that the electrical systems within a building operate safely and effectively. This requirement serves as a critical component in maintaining system integrity and overall safety in facilities that utilize coaxial cable installations.