What is the minimum amount of free conductor that should be left at each outlet?

The minimum amount of free conductor that should be left at each outlet is typically six inches. This length is important because it provides sufficient slack for the electrician to make connections securely and safely. The extra length allows for adjustments and ensures that there is enough conductor available for proper termination within the outlet box. This practice also aids in maintaining compliance with electrical codes and safety standards by preventing strain on the connections during installation or maintenance.

The choices reflect different lengths, but the standard requirement is six inches, as shorter lengths may not allow for safe and effective installation, and longer lengths could lead to unnecessary clutter in the electrical box. Thus, leaving six inches of free conductor ensures both practicability and adherence to established guidelines in electrical work.