|
Which of these motor maintenance methods do you think is
most
cost-effective?
Conduct scheduled PMs that include measuring bearing runout,
inspecting the windings, testing insulation, realignment, and
lubrication.
Save the PMs for only the most expensive motors; replace all
others when they fail.
Skip all of the PMs, except for lubrication.
To read more on this story, visit EC&M's website.
Advertisement
 For a
limited time Fluke is giving you more than you paid for – free
Fluke tools with purchases starting at $100. Just in time for the
summer cooling season, get the tools you need and receive a 2AC
non-contact voltage probe, a C550 tool bag or a Fluke 62 IR thermometer
as a bonus.
|
As part of a green initiative, your division VP hired a
special team to "clean up the power factor" at every plant. Your plant
was the first on the list. Because you weren't involved in the actual
work, you requested "as-built" drawings. The VP said those drawings
were
not in the budget and were not going to happen.
While this lack of documentation is bad enough, you have a more
pressing problem. Since this team finished and left, you've had a rise
in trouble calls all over the plant. The maintenance department is
buried in repairs and repeat repairs. What probably happened, and how
do
you solve it?
Visit EC&M's website
to see the answer.
We previously discussed doing a visual inspection of your
distribution system to quickly identify systemic problems. However,
this
approach doesn't identify every likely problem or quantify
before/after.
For that, you need testing.
If your facility has a power monitor, great. But it's probably
not monitoring at every load. To see what's going on at the loads, you
need a power analyzer and a true RMS DMM.
Previously, we worked from the one-line down. Now we'll work in
the other direction; start at one of the troubled loads.
To read more on this story, visit EC&M's website.
Advertisement
 Baldor offers the
broadest line of energy efficient industrial electric motors in the
world. Fractional to 15,000 Hp, there's a Baldor Super-E® premium
efficient motor for any need…any application. Visit our website and
receive your free copy of EISA 2007 along with Baldor energy savings
information.
Click
Here
|
The NEC can be a confusing source of information for those
individuals who don't truly grasp the terms used within it. That's why
it's valuable to take a few minutes to become familiar with the
definitions in Art. 100. - Accessible. This means
anyone
can get to it. The NEC has three flavors:
- As applied to
equipment. Typically, the NEC limits what you can do if the equipment
is accessible. The concern is the safety of unauthorized
personnel.
- As applied to wiring methods. Typically, the NEC limits what
you can do if the wiring method is not accessible. The concern
is
ease of maintenance and repair.
- Readily accessible. With "readily," the idea is you can walk
right up to it for access. No climbing over stuff or up ladders is
required.
- Ampacity. The NEC provides ampacity
requirements (and tables) based on how small a conductor can be,
not on how big it should be. This is a crucial distinction.
Meeting the ampacity requirements won't necessarily provide you with an
efficient design. Not meeting them will necessarily provide you with an
unsafe design.
- Approved. This doesn't mean approved by a manager in
your company — it means approved by the authority having jurisdiction
(AHJ). The AHJ is determined by your state's electrical board (EB). The
EB members are appointed by your governor (or, in some locales, the EB
and AHJ are determined at the city, not state, level).
The Hazard Communication Standard (HCS): - Gives
you
the right to know the hazards of materials with which you work.
- Prescribes to employers their duties on your behalf.
- Provides information requirements for manufacturers (of
hazardous materials).
Many states have related laws that also apply. You don't have to know
these laws unless your job responsibilities include HCS compliance
(i.e., you're the safety director).
Your role in HCS covers two areas:- Training. Your
employer
is required to help you learn about any hazardous material you work
with, including applicable emergency procedures.
- Reading. You're required to read product container
labels and MSDS, but your reason for reading them should be to
understand what the hazards are and how to protect yourself from
them.
Don't use these resources as a means of identifying what PPE is
not necessary. Conditions might require PPE beyond what the
label
and MSDS recommend. Nobody ever lost an eye from wearing safety glasses
in a non-required area.
Advertisement
 Thinking outside the box - so you can see inside
it!
Based on the same patented design as the VPFR, the IRISS CAP series of
windows offer a stable transmission rate - proven compatibility with
acids, alkalis, UV, moisture, humidity, vibration and high frequency
noise. Who Says Infrared Windows Have to be Round? Not IRISS! Contact
IRISS for more information at: +1 (941) 907-9128.
|
|
