The answer is actually quite simple, but let me first explain why that locking device is there. Section 422.30 of the National Electric Code (NEC) requires a disconnecting means for all appliances.

Requiring tools to get to the circuit breaker is no longer considered readily accessible as of the 2014 edition of the Code.

Circuit breakers are easily switched on and off which can cause problems for professionals carrying out an intervention. Shocks and extreme injury can be the results of prematurely reactivating a ...

In this episode of EC&M Code Conversations, Editor-in-Chief Ellen Parson and Code Consultant Russ LeBlanc discuss Sec. 240.24 – taking a look at why circuit breakers don’t always meet the definition ...

Lockout/tagout was one of the first requirements OSHA mandated, starting in 1990. The electrical lockout/tagout regulation became effective in 1990, as well as part of Subpart S. Lockout/tagout ...

High-security padlocks have been in existence since the early 1900s and have been presenting firefighters with forcible entry challenges for more than 100 years. Long before power tools became readily ...

[Avionics Today 09-12-2014] Peerless Electronics, distributor of switches, circuit breakers, relays and sensors for the aviation industry, has begun distributing the full line of Master Lock Aviation ...