What is the maximum allowed length for portable appliances?

The maximum allowed length for portable appliances is correctly identified as 30 feet. This length is significant because it helps ensure safety during operation and minimizes the risk of overheating, which can occur if cords are too long and not designed for extended use. In practical scenarios, longer extensions can lead to voltage drop and potential equipment malfunction. Moreover, regulations often set this length to facilitate safe use in residential and commercial settings, thus reducing the likelihood of accidents related to tripping or overloading circuits. By adhering to this standard, users are better protected against hazards associated with improper appliance use.