When emergencies happen, they can be dangerous, costly, and time-sensitive. Emergencies can’t always be avoided, and that is why it is best to be as prepared as possible for when something goes wrong. When a facility manager makes the emergency call to an electrical testing company, they should be ready for questions. One of the first things asked of a facility manager when help arrives is, do you have your electrical one-line? An electrical one-line is the blueprint for your facility and shows the electrical equipment connections. Having an electrical one-line significantly helps a technician respond and troubleshoot the emergency.

Where to start when troubleshooting:

  • Is the entire plant out of power?
  • Is the power outage isolated to a single building?
  • Is the power outage isolated to a Motor Control Center (MCC)?
  • Is the power outage isolated to a single piece of equipment?
  • Was the equipment running when the problem occurred?

Basic troubleshooting techniques apply to every situation and occupation.  Positive identification of the problem is absolutely essential to solving the problem.  For example, a person may experience a headache and take a mild pain reliever.  The actual problem, though, could be a number of things: eyes need to be checked, stress, tumor, or old war injury.  It is not uncommon for a process to develop several minor problems and continue to function at a degraded level of operation (i.e., intermittent pump alternation).

Benefits of an electrical one-line:

  • Saves time
  • Saves money
  • Creates a safe environment for when power needs to be turned off to troubleshoot

Emergencies are stressful situations that are time-sensitive and can result in costly repairs or equipment replacements. When a technician arrives on site, they want to do their job as quickly, safely, and efficiently as possible. When a facility manager has the facility one-line on hand and ready, the technician’s next steps are much easier. If power needs to be shut off from the electrical company, a one-line will show where that power is coming from. If a lock out tag out needs to be performed to troubleshoot the issue, this can safely be performed with confidence after reviewing the electrical one-line. Safety is a priority, especially in a stressful emergency.

Learn more by downloading our Why, What, When, and Who of Electrical Maintenance white paper.