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Monday, March 23, 2009
Electrical Equipment Protection For Your Home Or Business - Part 3Don’t overload circuits. Connecting too many electrical
plugs into a single outlet can be very hazardous. Too many desktop computers, TVs, lights, and fans connected to a single circuit can easily overpower the electrical supply as well. Splitting outlets (using power
strips, surge protectors, and UPS devices), of course, does
nothing but multiply the power demands placed upon the circuit to which those outlets are connected. Placing excessive demands upon a circuit can result in intermittent
power failures, wide variations in available electricity, and even
fire hazards as overworked circuits exceed safe operating ranges. As home and office power requirements have increased, your
wiring has stayed the same. Wiring deteriorates over time and
becomes less able to handle modern loads. Carefully research your home
or office’s power requirements to make sure the site’s electricity requirements are sufficient.
Several resources are available for helping estimate appropriate power
levels, but we recommend contacting South hills Electric, LLC
at (412)537-0687 or by email at patcray@southhillselectric.com for an evaluation of your electrical service and the wiring in your home or business.
11:55 pm edt
Monday, March 16, 2009
Electrical Equipment Protection For Your Home Or Business - Part 2Confirm that supply circuits are grounded properly. Surge protectors and UPS devices can’t properly safeguard the sensitive
hardware they’re designed to protect if the electrical outlets they’re plugged in to aren’t properly grounded.
Ground wiring is responsible for diverting most power surges. When ground wiring is compromised, surges don’t have an
effective suppression path. Heating systems, air-conditioning systems, personal computers, plasma televisions, and stereo
equipment can subsequently suffer significant damage. Qualified
electricians are trained to install wiring according to the National Electrical Code which specifies all circuits must be
properly grounded. Many UPS and surge protector models will light a warning lamp if the outlet into which they’re plugged
into isn’t properly grounded. Most do-it-yourself and hardware stores also sell inexpensive circuit testers that are
simply plugged in to outlets to confirm that circuits are grounded properly. Call South Hills Electric, LLC at (412)537-0687
to test your circuits for proper wiring and grounding. Whenever
deploying new equipment, be sure to first test the circuit. When using surge protectors or UPS devices that feature improper-grounding
alarms, also verify that the alarm light isn’t lit. Once again call South Hills Electric, LLC at (412)537-0687 for all
your electrical needs.
8:59 pm edt
Tuesday, March 10, 2009
Electrical Equipment Protection For Your Home Or Business - Part 1For the purpose of this post, the term electrical equipment applies
to computer systems, televisions, home theater systems, microwaves, and anything with a circuit board in it including modern
furnaces and air conditioners.
Most electrical equipment is designed to use 120 volts of AC power supplied at
60 hertz. Electrical current provided by a local utility however can vary from that standard significantly.
When deploying new systems and protecting existing electrical equipment be sure the local power grid continues providing
proper electrical baselines. Both sags and surges adversely affect electrical components and can lead to subsequent failure
of the equipment.
Use a multimeter to measure the voltage an AC power outlet provides to systems and equipment.
If baselines vary too much, consider investing in electrical conditioning equipment, such as an uninterruptible
power supply (UPS) or whole house surge suppression. Always contact a licensed electrical contractor like South Hills Electric, LLC to perform the work.
3:08 pm edt
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