According to the spacing rule, no point along the floor line in any wall space is allowed to be more than how many feet from an outlet?

The spacing rule for electrical outlets is designed to ensure that there are enough outlets available for convenient use, which helps reduce the reliance on extension cords and potential overloading of circuits. According to the National Electrical Code (NEC), no point along the floor line in a wall space should be more than 6 feet from an outlet. This means that outlets must be strategically placed so that, in any given wall space, every point is within that 6-foot limit.

This rule applies particularly to general-purpose circuits in dwelling units, where maintaining consistent access to power sources is essential for safety and functionality. By ensuring outlets are no more than 6 feet apart, it encourages the proper use of electrical appliances and devices while minimizing the risks associated with improper wiring practices.

The other distances mentioned are either too far for the intent of creating safe and functional living spaces. Specifically, allowable distances such as 4 feet would not provide enough outlet availability, while distances of 8 or 10 feet exceed the NEC guidelines, potentially leading to unsafe practices or code violations.