What is the maximum unguyed projection allowed for a service mast in a consumer's service?

The maximum unguyed projection allowed for a service mast in a consumer's service is an important aspect of electrical installation safety and structural integrity. The value of 1.5 meters is stipulated in electrical codes to ensure that service masts are sufficiently stable without the need for additional support through guy wires, which can complicate installation and maintenance.

When a service mast extends beyond this point, it can become prone to swaying or bending due to wind or other forces, which may lead to mechanical failure or damage to the electrical connections at the top. By restricting the unguyed projection to 1.5 meters, regulations promote safe practices while allowing for adequate reach to supply electrical service. This balance helps ensure that installations remain secure and functional over time, minimizing risks for both the property and the electrical service providers.

Understanding this measurement is crucial for compliance with safety standards in residential and commercial electrical systems, making it foundational knowledge for anyone working within the electrical trade.