What angle is preferred when passing through a structural concrete beam?

When passing through a structural concrete beam, the preferred angle is 90 degrees. This angle allows for the most effective and secure penetration of the beam, minimizing the risk of weakening the structural integrity of the concrete. When conduits or cables are installed at a 90-degree angle, they align appropriately with the structural elements, helping to maintain the intended load distribution and reinforcement characteristics of the beam.

Using angles like 45 degrees or any lesser angles could compromise the strength of the beam by creating unnecessary stress points and potential vulnerabilities within the concrete. Therefore, adhering to the 90-degree standard is critical in electrical installations to ensure safety and compliance with engineering principles.