You and CMMS, Part 5
Some Repairs Matter More Than
NEC in the Facility
Code Change Conferences Are
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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.
You and CMMS, Part
What kind of equipment data and history do you have in
your computerized maintenance management system (CMMS)? Have you just
entered data to fill in the blanks, or have you thought about the kind
of information you can use to:
- Order the correct replacement parts?
- See which drawings, manuals, spec sheets, and other documents are
associated with that equipment?
- Track, trend, and predict replacements of parts based on actual
condition assessed during scheduled PMs?
- Export failure causes to Excel for Pareto analysis and followup on
the most costly causes?
- Answer other questions that allow you to shorten repair
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This past summer, complaints about the air conditioning
were fairly abundant, and the electric bill was high. You just had a
meeting with your boss and the plant controller. The controller did
homework prior to the meeting and presented the following facts:
Your boss and the controller want you to look at the HVAC system and
elsewhere to identify the source of the excess power usage. What are
some things you need to do?
- The electric rate was the same as last summer.
- The monthly electrical usage was significantly higher versus the
same months last year.
- The weather data might justify a little more cooling but definitely
cannot account for this much difference.
- The HVAC maintenance contractor’s reports show no coolant
Visit EC&M's website
to see the answer.
Some Repairs Matter
More Than Others,
Equipment that makes the most money per hour and/or has
the tightest delivery schedule must be fixed first. But what happens
when you must choose between money per hour and a delivery deadline?
can you balance revenue against scheduling when prioritizing resources
to simultaneous downtime situations?
Maintenance people generally cannot win when making such decisions.
common solution is to divide up resources so that techs are running
and forth between the two situations. That makes both downtime problems
last longer. Focus the right people on the more critical problem first.
To read more on this story, visit EC&M's website.
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NEC in the
Article 80 is in Annex H, and it addresses five major
Let’s look at electrical inspections more closely. A common
misperception is “electrical inspection” means you get a permit for
a construction project and, if the installation passes the city
inspector's inspection, the matter is closed. One reason for this
misperception is the idea that the authority having jurisdiction (AHJ)
is always the city inspector. The AHJ is anyone designated by the
- Electrical inspections.
- Electrical fire investigations.
- Review of electrical construction plans.
- Design, modification, construction, and maintenance of electrical
- Electrical equipment at special events.
To read more on this story, visit EC&M's website.
In our last issue, we identified the category ratings
electrical test instruments in ascending order of transient voltage
withstand capability as CAT I, CAT II, CAT III, and CAT IV. You can
CAT definitions in IEC 61010-1. In an industrial environment, you
be using either CAT III or CAT IV.
Although you can safely use CAT II instruments on most 120V and 240V
branch circuits in a building, the reality is that if you have a DMM
hanging from your belt that's the one you're going to use. Carry a CAT
III instrument so you can work on anything you're likely to encounter
below the CAT IV level (you'll need CAT IV test equipment to work on
utility service equipment).
In addition to the CAT rating, check the instrument's voltage and
current rating before using.
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Show & Events
Conferences Are Coming
The 2011 NEC is coming. Will you be ready for the
changes? By attending one of EC&M's Code Change Conferences,
presented by NEC expert Mike Holt and sponsored by EC&M University, you'll
learn everything you need to know about major NEC changes that will
impact your work, whether you're an electrician, electrical engineer,
electrical designer, plant/facility electrical maintenance person, or
electrical inspector. Check out the following conferences for a
and time that's right for you.
- Chicago November 1-2, Hyatt Regency Rosemont
- Seattle November 8-9, Hilton Seattle Airport & Conference
- Philadelphia November 29-30, Hilton Philadelphia City
- Boston December 7-8, Venue to be determined
- Orlando December 13-14, Hyatt Regency Orlando
If you're a registered professional engineer and attend one of the
2011 NEC Code Change Conferences, you'll be granted professional
development hours (PDHs), a requirement for re-licensing. The program
also certified as an approved provider of Code Update training by those
states requiring continuing education hours for re-licensing of
journeymen, master electricians, and electrical contractors.
Register now to
attend one of the these events. For more details on the conferences and
a full program, visit EC&M's website.
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