When cables are laid in wood notches, what minimum thickness of steel plate is required for protection?

The requirement for the minimum thickness of a steel plate used for protection of cables laid in wood notches is established to safeguard the cables from potential damage. A thickness of 1/16 inch is specified as it provides adequate protection while ensuring that the plate is manageable for installation.

This thickness is sufficient to withstand typical impacts and pressures that could occur in installations, offering a balance between protection and practicality. Additionally, using a plate with this thickness prevents the cables from being exposed to wear and tear that could compromise their integrity.

The other thicknesses listed, such as 1/32 inch, are inadequate as they do not provide the necessary protection against potential damage. Similarly, thicker options like 1/8 inch or 1/4 inch, while providing more protection, may not be required under the code, making them unnecessarily heavy and difficult to handle in typical scenarios. Thus, 1/16 inch serves as a standard that meets safety requirements effectively.