Electrician's Licensing Practice Exam

Is hanging a second support from a primary support when running new work over old acceptable?

1. Yes, it is acceptable and common practice

2. No, it is unsafe

3. Yes, but only under specific conditions

4. No, it is against NEC regulations

The correct answer is: Yes, it is acceptable and common practice

Hanging a second support from a primary support when running new work over old is considered an acceptable and common practice in many construction scenarios. This approach is utilized to ensure adequate support for the new work while maintaining alignment with the existing structures. Uniformity and stability are crucial in electrical installations, and adding support in this way can help distribute loads effectively and reduce the risk of sagging wire or cables, which can lead to electrical hazards. It's important to remember that while doing this is generally accepted, it must be performed carefully to adhere to safety standards and best practices. The additional support must not compromise the structural integrity of the primary support and must be installed in a way that complies with local building codes and regulations. Understanding these nuances helps reinforce the importance of proper support in electrical work.