Friday, November 1, 2013

Aluminum Wire Feed line

We have recently done work for  a client that have been referred to us from JT Property inspection's very own Antwan Richardson, who had an issue with her electrical panel. (electrical box where you find your breakers or fuses if you still got one of those). Within his inspection report he noted that the feel lines to the panel were done in aluminum. Why is this such a big deal, well starting in 2010 insurance companies were declining costumers whose homes were wired with aluminum. I have tried to do my research and i'm still not sure why exactly is it that they are not accepting homes with aluminum wiring.

In her specific case we were able to measure the distance from the main breaker outside, which is the breaker or interrupter device that can shut off power to the house, to the inside distribution panel. Once we had that information we were able to send out for a material quote from our suppliers. After the owners approval we proceeded with the work. First we disconnected the main breaker and the inside distribution panel to be able to pull the new wires. In order to facilitate the work we use one of the old wires to pull the new ones into the conduit,, which in this case was a 2" rigid pipe for a 150 amp service.

Keep an eye for any friend or family member who is a homeowner and might not be sure if there is aluminum wiring in his or her house. You can contact us through our page for more information on our services or even to contact JT Inspections here in Florida.

Friday, August 9, 2013


Let's talk a little bit about magnets.. what are they?

There are two types of magnets Natural and Artificial. However there  is only one naturally occurring magnet called lodestone. It is not know how it gets it magnetic properties, it just does. every other type of magnet you may encounter is an artificial magnet.

Only ferrous (iron based) metals have magnetic properties. Metals such as iron and steel. When it comes to these types of material to be "turned" into magnets, following the accepted theory of  magnetism one would need to a magnetizing force at the end of an iron bar  to align the electrons with each other to give it its magnetic properties. It all sounds confusing in a way but basically that magnetic force aligns the ferrous electrons in the iron bar to make it magnetized. Another way of doing this is simply stroking a bar of iron with a magnet.

There are two types artificial magnets, permanent and temporary magnets. We're not counting lodestones because they are naturally occurring. A permanent magnet is one which keeps its magnetic properties for a long period of time, when it loses it rather quickly it is considered a temporary magnet. Such is the case of soft iron magnets which lose their magnetism sooner.

How can you demagnetize a magnet? The answer is simple, one must disarrange the magnetic field in order for the molecules in this ferrous material to return to their original positions. one easy way to do this, and kind of fun at that, is striking a magnet with a hammer! Other methods are, either applying heat to the magnet or placing it in a reversing magnet. (alternating current)

Wednesday, April 24, 2013

What are the most Common Problems you encounter out in the field?

A friend of mine recently asked me that question and it really got me thinking, so we'll discuss some of the recurring issues we run into while out in the field:

1. "My bathroom outlets stopped working!" The number one "problem" we have come to is probably a tripped breaker. When there is an overload in the  circuit, the Interrupter device, also known as the Circuit Breaker, trips. So what exactly is happening here? well, the breaker has a rated amperage that state the resistance that can be loaded onto that circuit, say 15 or 20 for regular receptacle. or outlet, circuits. But when that limit is reached or surpassed the breaker trips to prevent major damage. The following might sound really simple and it is, the easy solution for this is resetting the breaker. The problem people are encountering is that it just doesn't work, the lever won't stay in the ON position, well that's because they usually attempt to switch the lever to that position without resetting it, meaning you must first turn the lever OFF to be able to reset the mechanism then flip it back on.

2. "I plugged in my blow dryer and the lights went out, what happened?" Normally the lights in the bathroom are in the same circuit as the lights in the adjacent rooms, or most lights simply divided into lighting circuits throughout the house. Typically labeled "General Lighting" or "Lights". When said event happens, making use of the outlet in the bathroom blowing out the lights, is due to yet again an overload in the circuit, however this time around it is also due to the fact that the lights in that bathroom are connected in the same circuit as the Bathroom receptacles or outlets. If the electrical installations of the house are up to date, the receptacle is most likely a GFI, if tripped, simply reset it and it should go back to "Normal". In any case if that happens you might wanna have a licensed electrician take care of it, separating your lights from the GFI bathroom circuit.

3. "I was doing my lawn and i accidentally cut the extension cord with the whacker, now some outlets in the house don't work, Why?"

Monday, March 11, 2013

Superbowl Power Outage, eh What happened?

So The question is: What really happened the day of the Superbowl?

A relay device was installed in switching gear as a precautionary measure to ensure that a power outage wouldn't happen. We all know how that story ended. According to Entergy New Orleans officials the device was properly working prior to the big game, however it did fail and left half the stadium without light for about 34 minutes.  The original purpose for this relay was to prevent cable failure between ENO incoming power lines and the lines running into the Superdome.

Thursday, March 7, 2013

Emergency Systems, what are they?

Let's talk about Emergency systems and learn a little bit more about what they are and what is their use. Emergency systems consist of the circuitry and equipment utilized to supply energy after a power outage from the main source in an establishment. According to Article 700.12 of the National Electrical Code, such system has to "kick in" in less than 10 seconds of current supply failure. What for exactly is this emergency system used? These systems are designed to supply power to Light fixture that provide enough illumination for occupants of a building to evacuate in case of an emergency, also important equipment and machinery. In case of hospitals and operating rooms they keep life-support equipment running. Interestingly enough, this article does not state whether or not these systems are required or the specific location of exit lights or emergency lights. This indications are in the NFPA 101 Life Safety Code.

Thursday, February 21, 2013

The Sun

Every day we wake up get ready to go to work, or school, leave our houses to get on the road. Most times we ignore the simplest of things, the air we breathe, plants and living things, and also the sun. We know for a fact that It will rise as it does every day of every year we've been alive; and we know that it will continue to do so as it has done for the past well millions of years. Then the questions arises, how much do we really know about the sun? How powerful is it really? One of my personal favorites what can we possibly do with the energy it irradiates.

To give us an understanding of just how power is this "Dwarf Star", let us focus on the activity that is happening right at the surface. Approximately five hundred million metric tons of Hydrogen are converted into helium every second. As a result of this constant nuclear fusion process, five million metric tons of residual material are converted into energy. The energy produced in one second by that material is equal to 1x10^27 watts of energy. That would be more than enough to power the entire planet for  about 100,000 years. (according to energy consumption number taken in 2008)

Tuesday, January 29, 2013

What is Over current Protection

What is over  current protection? The question is simple, what does that mean to you. It basically means that an over current exists when the (Current) exceeds the rating of the equipment or the ampacity of the wiring (Conductor). What can possibly cause an over current? well it could be an overload on the circuit, a short circuit or a ground fault. Sufficient over current protection is required according to article 240 of the national code. The norm is to choose a protection device that protects the source of power to the conductors, however several exceptions to this rule exist. They are listed under article 240.4(A)-(G) .

So what are some Of these Over Current Protection Devices (OCPD): Breakers, fuses and Ground fault interrupter devices or GFIs. Galleries, services and more