How far must a 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet be from electrical service equipment in a multifamily dwelling?

The correct answer indicates that a 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet must be located at least 25 feet from electrical service equipment in a multifamily dwelling. This requirement is based on safety regulations designed to prevent potential hazards that can arise from having electrical outlets too close to service equipment, which may be subject to maintenance or service activities.

Having a minimum distance helps to ensure that the outlets remain easily accessible for use without interfering with electrical service equipment operations. It also reduces the risk of accidental damage to the equipment or the outlets themselves, promoting a safer electrical environment for residents and maintenance workers.

The distance of 25 feet is aligned with commonly accepted electrical codes, which are established to protect both users and equipment.