Maintenance Misalignment, Part
Failure Mode Coding
NEC in the Facility
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MRO Insider addresses topics such
Working with management and supervision
National Electrical Code® on the production floor
Safety procedures and programs
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The designations "National Electrical Code" and "NEC" refer to the
National Electrical Code®, which is a registered
trademark of the National Fire Protection Association.
Misalignment, Part 1
Over time, even the best maintenance program can become
misaligned with the maintenance department's mission, resources, and
priorities. You can have every "best practice" implemented and still be
How can you tell if your program is suffering from misalignment?
are some tips:
In our next issue, we'll look at some tips for getting back into
- You meet your performance benchmarks, but critical equipment
availability metrics have degraded. You are doing things well, but not
doing the right things.
- You're fulfilling your mission but incur budget exceptions, such as
overtime or expedited deliveries. You're trying to do things you're not
adequately prepared to do.
- You've decreased total downtime, but availability of critical
equipment also has decreased. You're managing work in one direction,
while the needs of your production customers are in another
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Your facility has a small IT room that contains its
servers. Each server rack receives power through its own rack-mounted
UPS. The UPS event logs show frequent voltage spikes and repeated bouts
of high THD (total harmonic disturbance). This room is on its own power
transformer and panel (a separate transformer/panel supplies the
lights). The receptacles are all isolated ground.
Using a UPS as a crutch instead of as insurance is tempting fate.
need to solve this problem before a UPS gets cooked. Where are the
spikes and high THD coming from?
Web site to see the answer.
The typical CMMS has a coding system for recording
failure modes, and these codes typically are listed on repair report
From an analysis standpoint, how techs record the failure mode (fill
out paper forms or enter data via digital device) isn't important. What
they record is crucial. If the information isn't accurate, you’ll be
analyzing the wrong things rather than solving problems.
To read more on this story, visit EC&M's Web
NEC in the
If you have ignitable fibers on site, you can choose
zone classification system (Art. 506) as an alternative to the division
classification system (Arts. 500, 502, and 503). Although this
seems like a good choice, beware: There’s no free lunch.
To read more on this story, visit EC&M's Web
Have you reviewed your firefighting equipment (e.g.,
extinguishers and hoses) lately to see if it still meets the needs of
your facility? OSHA requires this equipment to be:
- Conspicuously located. The equipment does no good if first
responders can't find it. For column-mounted equipment, are the columns
marked (e.g., red band around the top)?
- Periodically inspected and maintained in operating
Read the dates on those inspection stickers. What system are you using
to schedule regular inspections?
- Accessible at all times. Equipment moves and other changes
can block access to fire extinguishers or hoses.
Don't conduct the review to avoid OSHA fines. Conduct it to protect the
facility and the people in it.
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