When installed through bored holes, cables should maintain how much distance from the edge of a wood member?

When cables are installed through bored holes in wood members, they should be positioned at least 1¼ inches away from the edge of the member. This requirement is put in place to prevent potential damage to the cables during the installation process as well as during subsequent work done on the structure. Maintaining this distance helps reduce the risk of nails or screws penetrating the cables, which could lead to electrical hazards or failures.

The specific distance of 1¼ inches is stipulated in electrical codes and standards to ensure a safe installation that minimizes the risk of abrasion or impact on the cables. Proper installation practices not only enhance safety but also help prevent future maintenance issues.