What Is a Utility Barrel Lock Key and How Does It Work?

Define the key in plain language and explain the relationship between the key, the barrel lock, and the protected utility enclosure. Clarify that these locks help limit access to electrical, gas, water, telecommunications, and other service equipment. Explain the basic pin or wafer alignment process without giving instructions for defeating a lock. Note that barrel locks may also be called tubular locks, utility access locks, service locks, or meter locks, but these terms are not always interchangeable.