What is a Tamper-Resistant Receptacle?
A tamper-resistant receptacle (TR receptacle) is a receptacle that looks and works like a normal electrical receptacle but is safer than a standard receptacle – especially for children. Tamper resistant receptacles have small plastic shutters in both slots that prevent something from being stuck/inserted into just one slot. Their purpose is to prevent curious children from sticking things like paper clips, bobby pins, and keys into the receptacle and being injured or electrocuted.
Because the shutter/spring mechanism in both slots must be pushed simultaneously in order for the shutters to open, pushing on only one shutter will keep the shutters closed and prevent a foreign object from being inserted and becoming energized. On the other hand, when someone is trying to correctly plug something into one of these TR receptacles, the equal pressure on the shutters in each slot will allow the shutters to be easily pushed open and for the plug to be inserted into the receptacle.
According to the National Fire Protection Association (NFPA), about 2400 children are injured each year by sticking small metal objects into electrical receptacles. It is estimated that there are 6 to 12 fatalities each year as a result of sticking a metal object into a receptacle. Tamper resistant receptacles were developed in an attempt to prevent more of these tragedies from occurring in the future.
How long have Tamper-Resistant Receptacles been required?
Tamper-resistant receptacles were first required by the 2008 edition of the National Electric Code (NEC). Each edition (updated every three years) of the NEC has expanded the requirements for TR receptacles.
Where are TR receptacles required?
On residential properties such as homes and apartments, tamper-resistant receptacles are required for all receptacles in the home, as well as in garages and outbuildings. Even some 220-volt receptacles are required to be TRRs.
Do Tamper-Resistant Receptacles require greater insertion strength than standard receptacles?
TR receptacles normally require comparable force to other receptacles. The insertion force may vary depending on how many times the receptacle has been used, as more use normally makes plugging something in easier. I have encountered some of these receptacles that I have had a difficult time inserting a plug into, and this is frustrating. Most however, have given me no trouble whatsoever.
How much do Tamper Resistant Receptacles cost?
The cost of a TR receptacle adds about $0.50 to the cost of a standard receptacle. Based on current statistics, the average home has about 75 receptacles, resulting in an overall added cost of under $50. This amount may vary slightly based on the type and style of TR receptacle used. This minimal increase in cost buys a significant increase in electrical safety for children.
Check out our YouTube video to learn more – What You Need to Know about Tamper Resistant Receptacles
© 2022 Mike Morgan
This article was written by Mike Morgan, the owner of Morgan Inspection Services. Morgan Inspection Services has been providing home, septic and well inspection services throughout the central Texas area since 2002. He can be reached at 325-998-4663 or at mike@morganinspectionservices.com. No article, or portion thereof, may be reproduced or copied without prior written consent of Mike Morgan.
