Applying a Maintenance Lockout

09/01/2004
Lockout/tagout is a subject that seems to drift into the everyday life of a technician on a regular basis. Today's appearance was with a customer who called to see if I could get someone to his site right away. Apparently, a 200-ampere circuit breaker tripped for no reason. Note - circuit breakers do not trip for "no reason." There is always a reason.