Electric Questions and Answers
Lockout - Finishing E-mail

Question:

Suppose you are finishing a maintenance project where an electric motor was locked out and tagged, and now the work is complete. Your lock is the last one to be removed from the circuit breaker, everyone else already having taken their locks and tags off. What should you do before removing your lock and turning the circuit breaker back on?


Read more...
 
Lockout - After Locking & Tagging E-mail

Question:

What step(s) must be taken after locking and tagging an electrical disconnect device for a circuit to be worked on, and prior to actually proceeding with the work? What step(s) come between the lock-out and the work itself?


Read more...
 
Lockout - Rack Out E-mail

Question:


Large power distribution circuit breakers look nothing like the small breakers seen in residential and commercial electrical systems. They are large units, which "plug" into cubicles so as to facilitate removal and replacement for routine maintenance.

When securing an electrical system in a zero energy state prior to commencement of maintenance work, it is common practice to "rack out" any large circuit breakers feeding power to the system. What exactly does this term mean, and what is the procedure for "racking out" a circuit breaker?

Read more...
 
Lockout - Tag E-mail

Question: 

When securing equipment for safe maintenance, special tags are attached with the lock(s) used to keep circuit breakers and other disconnect devices in the open (off) state. A typical "lockout" tag looks something like this:


Read more...
 
Lockout - Who Should Open Lock E-mail

Question:

When using a padlock to secure a disconnect device in the "open" (off) state, who should be able to open that lock? In other words, how many other people should share a key to the lock you use to secure a breaker or switch in the safe position, if you are the one working on the system? 

 


Read more...
 
<< Start < Prev 1 2 3 Next > End >>

Results 1 - 9 of 19