What is the MINIMUM drain hole size for electric signs located in a wet location?

The minimum drain hole size for electric signs located in a wet location is 1/4 inch. This specification is crucial because proper drainage helps prevent water accumulation within the sign, which can lead to electrical hazards, corrosion, and damage to the sign's internal components. Ensuring that the drain hole is adequately sized facilitates effective drainage, mitigating the risk of structural and electrical issues that could arise from water ingress.

Using a hole size of less than 1/4 inch may not effectively drain water, while a larger hole might not be necessary for drainage purposes and could compromise the sign's aesthetics or integrity. This balance is important in maintaining safety and functionality in wet environments.