E Light Safety, Training and Leadership Blog
Education and Safety
Welcome to the E Light Electric Services Training and Education website. We believe that a solid education is a key ingredient of quality workmanship. safe electrical installations and an added value for our customers. We are dedicated to providing our employees with the highest quality education and educational resources.

On this site you will find tutorials on electrical theory, the National Electric Code, general safety and electrical safety. We have also provided information concerning NEC changes, examination for licensing preparation, and tips for efficient and quality workmanship.

We also have web pages used for reporting homework and educational resources used in conjunction with our classroom training and our remote training programs. This allows us to provide a solid educational foundation for our electrical apprentices.

We encourage you to take a look around and check back regularly as we will update the site frequently with new information.

Our current class offerings are posted on this site. To see our current class listings, click on the Schedules button to the left.

Please contact Ted "Smitty" Smith at (303) 754-0001 x 114 with questions, comments and suggestions concerning this web site, training or safety.

Thank you,

Ted "Smitty" Smith
Director of Safety
E Light Electric Services, Inc.
(303) 754-0001
tsmith@elightelectric.com

E Light Safety, Training and Leadership Blog

The Importance of Daily Logs

by Ted Smith on 11/19/15

As a supervisor, or foremen, you are the crew leader on a construction job site. It’s up to you to plan, organize, and direct work in a safe, and timely, manner. All supervisors will experience conflict at some point, as well as safety violations, workplace injuries and there will be things that happen on the site that prevent you from doing your work for the day or part of the day. All of these things can lead to claims and other liabilities later on. It is important for you as a supervisor to protect yourself, your reputation and to also protect the company. By keeping a daily record of all activities, you can protect yourself and the company from arbitration and/or litigation.

What is a Daily Log?

The daily log is a book, or software program, into which a supervisor records the day’s activities. Record keeping helps ensure project organization, as well as keeps tabs on day-to-day employee happenings. The daily log is essential because it keeps a consistent record, which could be useful if you’re ever sued, and need to prove that your workers performed a safety inspection, did work to the best of their ability, made quality installations, or could not work due to site conditions or other impacts or conflict was handled immediately and efficiently.

Daily log sections include:

Date
Times of incidents
Work performed
Safety topics
Problems and delays
Employee conflict
Equipment usage
Materials purchased
General management
What is an Incident Report?

E Light has attempted to make this process as efficient as possible by using a program called iAuditor in conjunction with your tablets and smart phones. The company has multiple templates pre made for your use. There is a daily supervisors report which has boxes and questions that can answer quickly as you go and there is also a place to insert pictures. .We also have a Rapid Observation Report which allows you to document something specific. It is important that each supervisor complete a daily supervisors report each day and email it to the project engineer, the project superintendent and project manager. These reports are a great tool for the PM to use to know what is happening in the site. These reports are also to be stored on the construction drive under the project file for future use. Be sure to email yourself a copy as well for your personal records.

Daily Logs Ensure Effective Jobsite Supervision

Jobsites are typically limited to the manpower needed.  The job site supervisor is typically all on his own. He needs to protect himself by keeping a daily log. This ensures that a record is kept of all conflicts, incidents, as well as records of day-to-day activities and impacts that prevented work.  If a supervisor can prove that he’s consistently kept a detailed daily log, it should hold up in court, as well as with customers and business owners.

Ted "Smitty' Smith

Being Too Busy. Work Place Stress

by Ted Smith on 04/19/15

E Light has made steady growth over the past few years and this is a great thing. It has provided great opportunities for advancement and new employment. It has also lead to some growth pains, which are to be expected. I was reading though my trade magazines this Sunday and I came across an article that I found very helpful and I wanted to share it with all of you. 


Five ways to Avoid Work Place Stress by


By 

Vice President, Sage Accountant Solutions

Spring has sprung, and while you’re cleaning the clutter from your office or house, what about your mind? Taking care of yourself should be part of your job, but many of us are suffering in silence from an emotionally and physically draining sickness called 'being busy'.

We’ve wrongly come to accept that overload is okay. Being busy often equates to success; when your business is booming you need to run a mile a minute and keep a million balls in the air at once. And being too busy is no big deal, right?

Wrong. Being busy implies stress. Three quarters of people believe there is more on-the-job stress than a generation ago. Yes, stress can be helpful and motivating but too much and too prolonged stress can be a downward spiral. But chronic stress can be very damaging.

Here are five tips to spring clean your mind and stop feeling busy all the time: 

1. Eliminate the word 'busy' from your vocabulary


 

The Washington Post recently published some research that shows why the word 'busy' should be avoided. The research on the psychological aspects of language use explained that the words you use have more power than you think. Busy doesn’t recognize the good things you are doing. When you stop describing your life as 'busy', you can feel happier and less stressed.

2. Proper stress management 


 

You’re going to experience stress, left unmanaged it will destroy your productivity and health. Instead of feeling even more stressed when you take 'me time' to go to the gym, take a vacation or simply get a good night’s rest, think of it as part of your job. Studies show we are 20 per cent more productive when we work from a happy state of mind. Ditch the guilt by re-categorizing your life balance as a mandatory job responsibility, and put it in your calendar. 

3. Do not dive straight into work


If the first thing you do when you wake up is check your email, your phone or tackle yesterday’s lingering problem, stop. Throwing yourself into work immediately can harm your long-term productivity. It’s like going on a run without stretching first. You need to warm up first so you can better focus on work when it is time.

4.  Stop multitasking


 

It may seem efficient on the surface, but multitasking can take more time in the end and involve more error. Research shows that shifting between tasks can cost as much as 40 per cent of your productive time. Unfortunately, the busier you get the more multitasking you end up doing. Instead use the 80/20 rule; identify the 20 per cent of your tasks that are really effective and do them one at a time, and start with the most important task first.

5. If you're the boss, set the example

As a  manager, it’s important to show that excessive busyness is not a good business model. Too often the perception that hard work is the only way to rise in a company keeps employees working themselves into illness. Prioritize keeping your team healthy and productive. Set priorities for all work so your employees can schedule tasks over a reasonable period of time.

"Busy" is worn like a badge of honor these days. We live in a world where we have more and more to do with less time to be at ease. We’re less able to stand back and think and worker smarter. When you don’t allow the time to slow down, you not only risk your health but also your business. So the next time someone asks "How are you doing?" and you respond "busy" treat it like a stop, drop and roll moment.

Problem Solving as a Team

by Ted Smith on 04/04/15

A3 Problem Solving Overview and Refresher

Excepts from: Flinchbaugh, Jamie (2012-02-16). A3 Problem Solving: Applying Lean Thinking (Kindle Locations 272-275). 

Definition of Lean Thinking The lean methodology - the practice of focusing on the processes that create the value while eliminating those that create waste - has been mostly about tools for many years. As broad knowledge of lean begins to mature, more people realize that being lean is also about applying lean thinking, principles, and behaviors - the core drivers behind A3 - at an individual, team, and organizational level to create a lean thinking culture. “Creating visible thinking is what is unique about the A3 process.” When extending the lean process to thinking, what does waste-free reporting and problem solving look like? To begin the process of thinking leaner, take a multi-page report and condense it to A3 - the international standard for a paper size approximately the same as 11”x17” paper. As you moved from the problem to the recommendation, rather than just the data. As a result of revealing the thought process, two things happen. First, when your thinking process is transparent, you can reach agreement faster. Many arguments and disagreements about recommended actions are in actually disagreements about assumptions made about either the current reality and target condition. if we can’t make our assumptions visible, then they can’t be discussed. Second, making the thinking visible enables coaching. You can’t coach outcomes. If someone just showed you that they’ve failed to achieve the outcome, you don’t know why unless you can see their thought process.

 

The four quadrants of A3 problem solving provide a standardized problem solving process to promote common thinking :

Problem Statement

Current Reality

Target Condition

Action

Building Blocks for Developing A3 Thinking

 There is no single “right” format, but in general an A3 report flows from a problem statement or gap description, to current reality analysis, description of the target condition, and finally the plan and measurements to evaluate progress and validity. The format itself isn’t important—it won’t magically turn you into a lean thinker any more than picking up a paintbrush or a sax will magically turn you into another Rembrandt or John Coltrane. It is going through the work of developing an A3 report for your situation that starts you on the path to becoming a lean thinker. It is essential to begin with the problem statement, because it is a critical element on the path to lean thinking. There are few things more fundamental—and frequently done poorly—than the problem statement. How you structure the problem statement determines your focus. Make sure your problem statement is actually about the current observable condition, not about a perceived solution, cause or what you want. Before you jump to reactive solutions, it is essential to deeply understand the current reality. This is not a sit-down exercise, it is an activity. Go observe what is actually happening. You want the as-is, not the supposed-to-be or the my-belief-is version of reality. Before you start throwing Band-Aids at the problem, you should first develop a clear target condition—the goal of where you want to be. This is not the result you would achieve, this is how you will change the work in order to get the result. You don’t want to just uncover solutions to problems, you want to design the work to create a new and better reality. Bad systems beat good people, and your job is to change the system.

QUADRANT I: Problem Statement There is great value in developing a standard problem-solving format. Everybody can follow along by following the thinking. Once common A3 thinking is established, it can serve as a powerful business tool that can be applied across all business processes and functions. First, let’s define the problem. Capturing the resolution to a complex problem or a 20-page report on one A3 sheet of paper may seem like a daunting task. Once standardized, it will, in fact, make all points of problem solving within an organization more efficient. How do we get there? “The problem statement has a huge impact on the trajectory we take.” If you get point A wrong, the problem, then all assumptions made to get to the solution may also be incorrect and, so too, the solution.

Problem Statement Development Consider the difference in impact from two very similar problem statements: Joe is a jerk, or how do I develop a working relationship with Joe? The first problem statement is all about the other person. Let’s reword the problem statement: “How can I develop a working relationship with Joe?” The conditions are very much the same but the problem statement is different. While one whole set of solutions rested entirely in Joe’s body a whole new set of possibilities includes us and other people. The second problem statement includes the problem owner, giving that person infinitely more power to solve this problem.

Here’s another example: We don’t have enough manpower or, we don’t have enough production from our manpower. The first problem statement only leads you to add more manpower. The second helps focus on how you might be wasting the efforts of your current manpower.

Pitfalls to Avoid Consider the impact on the problem statement if you send two people off on different trajectories of just five degrees. You will get far apart pretty quickly. The problem statement establishes our trajectory. If two people depart from the same location on a trip, and only five degrees separates their trajectory, they will be in drastically different places in a matter of hours. ”We underestimate how powerful the problem statement can be, and that is pitfall number one.”

The second pitfall is getting locked into the problem statement as though it is written on a stone tablet. You must be willing to adjust your problem statements. This doesn’t mean your original problem statement was wrong. Writing a problem statement is an iterative process—problem statements are changed because you learn stuff through the process of examining the problem. In my experience coaching executives on lean thinking, you have to modify a problem statement at least 50 percent of the time.

The third pitfall in problem statements is jumping the gun on too many assumptions before the problem statement is created. You insert unexamined causes and solutions into the problem statement, closing yourself off to many possibilities. The earlier example of “we don’t have enough manpower” is an example of putting the solution in the problem statement. There is only one solution to that problem—get more manpower. It immediately closes you off to many possibilities.

QUADRANT II: Current Reality It is important to directly observe the problem before you can fix it. The objective is not about going to see but about going to understand. A process tour can be enjoyable but it is not about industrial tourism. It is necessary to not just see but actually study and understand the problem. There is a big difference.

QUADRANT III: Developing a Target Condition Once a team has developed a clear problem statement and understanding of the current condition, they also must develop a tangible vision of the target. Quite frankly, it is easier to skip this step than to spend time on it. What makes it easy? Our first flawed assumption is that the target condition is simply the absence of the problem, or the inverse of the current condition. This is not a useful assumption. The second reason that we skip over such an important step is that we assume this is the same thing as developing the action plan.

The target condition should describe what you would see, feel or experience. The target condition is what “good” looks like. “The coaching question to use with yourself or others is exactly that: What would ‘good’ look like?”

Quadrant IV: The Action Plan. Now the team needs to take everything they have learned in the process and develop an action plan that will reach the target condition. Two things are critical:

  1. The plan is clear and has objectives, deadlines and champions

  2. The plan has a clear metric so the team and champions can determine if it is working.

     

     

     

 

Flinchbaugh, Jamie (2012-02-16). A3 Problem Solving: Applying Lean Thinking (Kindle Locations 272-275).  . Kindle Edition.

Lessons from the Past

by Ted Smith on 01/05/15

An idiot is one that never learns from his mistakes. A smart man learns from his mistakes and a wise man learns from other peoples mistakes.


We are constantly looking at better ways to do everything at E Light. We can never be satisfied with the status quo and we expect everyone, everyday to find a better way to do what we already do so well. Sometimes the inspiration for those ideas can come from others and even from history. 

I have spoken often of the Empire State building the amazing processes they used there to accomplish the building of a 102 story building in a year. Some might say it was a miracle but I believe it was simply the application of great planning and management of the project form beginning to end. There are many lessons to be learned from the building of the Empire State building and I believe that anyone in construction management or supervision should study how the processes worked. I have included here an excerpt from the book The Empire State Building The Making of a Landmark  by John Tauranac. It is contains some examples of the planning that went into logistics. As you can imagine, getting materials to the work crews in a building of that size was a monumental task and one that was crucial to productivity. As you read this except please remember that the primary duty of management and supervision is to make sure that our crews have 100 percent of tools, information and materials they need each and every day so that they can install and be productive in a safe way. If they need 9 wire nuts the we give them 8 then they have to find the 9th one, it is really just that simple. On the other hand if we over order and give to much "just to be safe" then we create another type of waste and once again affect their productivity. If we negatively affect the crews productivity we are wasting money.

Logistics and the Empire State Building.  Except from John Tauranac's book. 

"The Fifth Avenue Association was ever vigilant in keeping roadways and sidewalks clear; and the association went further than the rules laid down by the borough president’s office in maintaining standards of decorum.  The association regarded the sacks of cement, gravel heaps, and mounds of brick as nuisances, and they requested builders and contractors to store as much material as possible on the site itself. Like so many miracles, the miracle of construction that was the Empire State Building did not take place for all to see.  It took place on the first floor and downstairs in the basement, where the builders did just what the Firth Avenue Association wanted.  All the building materials, except structural steel and the facing for the first five floors, were received and unloaded within the building and hoisted to the workers within the building.  Nothing sat outside in piles to created eyesores, nothing was hoisted outside except the structural steel and stone facing for the lower five floors.  Traffic was not blocked, and the ever-constant hazard of falling materials was minimized.

Truck entrances on Thirty-third and Thirty-fourth Streets led to twenty-five-foot-wide driveways extending around the first floor.  Drivers only had to drive through a gate to the appointed docking area, unload, and drive off.  Eken said that they “ran trucks the way they run trains in and out Grand Central.  If a truck missed its place in the line on Tuesday, it had to wait until Wednesday to get back in”.  The building materials were all hoisted within the building in four shafts that would later accommodate passenger elevators.  In the early stages, the hoists traveled at 80 feet a minute, but they were soon replaced by mine skips that zipped along at 1,300 feet a minute.

Almost all the work was performed during the normal workday.  About all that took place after hours was the removal of construction debris.  If the debris was heavy, it was taken down by hoists; if light, it was sent down metal chutes (wood chutes would not have been strong enough to withstand the weight and velocity of even light debris).  The debris went into a hopper on the first floor; it was transferred to trucks and out it went. 

Just as Paul Starrett had told the corporation that all equipment would be new, it was also novel.  An industrial railway system was used to distribute the material at the site --- a first for an office-building construction job.  It was not as if there were four-by-eight locomotives up there.  The railway cars were handcars with not motive power other than human push power; but they rolled along at a merry clip, and each car was the equivalent of eight wheelbarrows.  Narrow-gauge tracks that were designed to reach every work site were laid on the floors of every floor of the building and the hoists, with twenty-four double-side-rocker dump cars and twenty-four platform cars serving the building.  Sheet iron, metal parts, bales of wire, coils of cable, sand and cinders and lumber and pipe would arrive; each would be unloaded in a special corner of the first floor, loaded onto a car; and sent shooting to the floor where it was needed.  Mortar could be delivered at the rate of twenty-one cubic feet per trip in cars, compared with seven cubic feet per trip in barrows.  It saved labor by decreasing the number of handlers, hoists, and hoist men, and it saved time and that meant money.

At the ordinary construction site, materials such as bricks were dumped in a pile in a cordoned –off area of the street, then delivered to the workers by wheelbarrow, and admittedly backbreaking, labor-intensive, and not terribly efficient method.  Starrett did something different.  The building required and enormous quantity of bricks – about 10 million and the bricklayers had to keep pace with the stone setters who worked on a schedule of one story a day.  The contractors constructed two brick hoppers, each with a capacity of twenty thousand bricks, in the first basement.  They built chutes leading into the hoppers near the entrances on the main floor.  Trucks only had to back up to the chutes, tip their bed, dump their bricks through the chute into the basement hopper; and move out.  These hoppers, with inclined bottoms, allowed the bricks to slide through gates and drop into the dump cars.  The cars were then taken “up hoist,” and the bricks were deposited alongside the bricklayers, without having been handled from the time they came into the building until they were picked up and placed in the wall. 

Cement was delivered in bags, unloaded, and was likewise dumped into a floor opening to a basement hopper; which fed a large mixer.  A rather ingenious method of handling the bags that minimized back strain and hand injuries was devised by the superintendent and fashioned by the house blacksmith.  It was a pair on tongs that was round on the end to prevent tearing the bags.

All the limestone from the sixth floor up was delivered in an equally brilliant fashion (the limestone for the first five stories was raised by stiff-leg derricks that operated from the sixth-floor setback).  A truck drove into the building’s loading area with the crated stone keyed for the appropriate section of the building.  The stone was made in such dimensions that it could be handled on ordinary material hoists within the building, so electric hoists, which were like small cranes that operated from an overhead monorail, lifted the stone from the truck, swung the stone along the monorail, and deposited it on the platform car.  The stone would be trundled by platform car to the perimeter of the floor where it was to be installed, and from there it was dropped by cable into its place in the wall between the steel jambs pieces already set.  Two hoists handled all the stone for the building, not only eliminated a large number of hoisting derricks and engines, but since the hoisting was inside the building, doing away with a grave source of danger to the public. 

An unexpected perquisite came with the site.  The Waldorf’s architect, Henry J. Hardenbergh, had taken advantage of the right to extend the basement to the curb line when he designed the hotel.  Starrett, seeing the opportunity to add to his work space, made sure these vaults were shorted up during demolition.  He then installed storage and supply rooms in the vaults for subcontractors during construction, freeing that much more space in the interior of the building. 

The masonry wall consisted of an eight-inch backing of brick faced with either limestone or aluminum spandrels.  The bricklayers put on the walls with a precision of operation that allowed for the least possible wasted motion.  Suspended on a covered scaffold, they picked up bricks from the piles that their helpers placed in easy reach, set them in place, spread the mortar; turned, and put in the next brick in a model of time-and-motions studies. 

When the framework was about six stories, high the lower floors became scenes of increasingly complex activity, with movement everywhere.  The work was fully synchronized, all done in unison.  While the skin was being set outside, plumbers and electricians started to install the building’s veins, arteries, nerves and alimentary systems – the ganglia- that fleshed in the skeleton.  When the window framers were in place and glass had been installed, plastering and woodwork and painting could begin.  All the finishing trades followed in such a rapidly moving but orderly parade, said Shreve that the plasterer might appear in the lower floors even before the roof was made tight."

Let;s strive every day to find better ways to plan our work and to find safer and more efficient ways to perform our work. 

Ted " Smitty" Smith

Director of Renewable Energy

E Light Electric Services, Inc

Troubleshooting Process

by Ted Smith on 11/06/14

To expertly troubleshoot electrical equipment, problems must be solved by replacing only defective equipment or components in the least amount of time. One of the most important factors in doing this, is the approach used. An expert troubleshooter uses a system or approach that allows them to logically and systematically analyze a circuit and determine exactly what is wrong.

The approach described here is a logical, systematic approach called the 5 Step Troubleshooting Approach. It is a proven process that is highly effective and reliable in helping to solve electrical problems.

 

This approach differs from troubleshooting procedures in that it does not tell you step by step how to troubleshoot a particular kind of circuit. It is more of a thinking process that is used to analyze a circuit’s behavior and determine what component or components are responsible for the faulty operation. This approach is general in nature allowing it to be used on any type of electrical circuit.

In fact, the principles covered in this approach can be applied to many other types of problem solving scenarios, not just electrical circuits.

 

The 5 Step Troubleshooting Approach consists of the following:

 

Preparation
Step 1 Observation
Step 2 Define Problem Area
Step 3 Identify Possible Causes
Step 4 Determine Most Probable Cause
Step 5 Test and Repair
Follow-up

 

Let’s take a look at these in more detail.


Preparation

Before you begin to troubleshoot any piece of equipment, you must be familiar with your organization’s safety rules and procedures for working on electrical equipment. These rules and procedures govern the methods you can use to troubleshoot electrical equipment (including your lockout/tagout procedures, testing procedures etc.) and must be followed while troubleshooting.

Next, you need to gather information regarding the equipment and the problem. Be sure you understand how the equipment is designed to operate. It is much easier to analyze faulty operation when you know how it should operate. Operation or equipment manuals and drawings are great sources of information and are helpful to have available

 

Step 1 – Observe

Most faults provide obvious clues as to their cause. Through careful observation and a little bit of reasoning, most faults can be identified as to the actual component with very little testing. When observing malfunctioning equipment, look for visual signs of mechanical damage such as indications of impact, chafed wires, loose components or parts laying in the bottom of the cabinet. Look for signs of overheating, especially on wiring, relay coils, and printed circuit boards.

Don't forget to use your other senses when inspecting equipment. The smell of burnt insulation is something you won't miss. Listening to the sound of the equipment operating may give you a clue to where the problem is located. Checking the temperature of components can also help find problems but be careful while doing this, some components may be alive or hot enough to burn you.

 

Pay particular attention to areas that were identified either by past history or by the person that reported the problem. A note of caution here! Do not let these mislead you, past problems are just that – past problems, they are not necessarily the problem you are looking for now. Also, do not take reported problems as fact, always check for yourself if possible. The person reporting the problem may not have described it properly or may have made their own incorrect assumptions.

 

When faced with equipment which is not functioning properly you should:

 

o    Be sure you understand how the equipment is designed to operate. It makes it much easier to analyze faulty operation when you know how it should operate;

o    Note the condition of the equipment as found. You should look at the state of the relays (energized or not), which lamps are lit, which auxiliary equipment is energized or running etc. This is the best time to give the equipment a thorough inspection (using all your senses). Look for signs of mechanical damage, overheating, unusual sounds, smells etc.;

o    Test the operation of the equipment including all of its features. Make note of any feature that is not operating properly. Make sure you observe these operations very carefully. This can give you a lot of valuable information regarding all parts of the equipment.


Step 2 – Define Problem Area

It is at this stage that you apply logic and reasoning to your observations to determine the problem area of the malfunctioning equipment. Often times when equipment malfunctions, certain parts of the equipment will work properly while others not.

The key is to use your observations (from step 1) to rule out parts of the equipment or circuitry that are operating properly and not contributing to the cause of the malfunction. You should continue to do this until you are left with only the part(s) that if faulty, could cause the symptoms that the equipment is experiencing.

 

To help you define the problem area you should have a schematic diagram of the circuit in addition to your noted observations.

Starting with the whole circuit as the problem area, take each noted observation and ask yourself "what does this tell me about the circuit operation?" If an observation indicates that a section of the circuit appears to be operating properly, you can then eliminate it from the problem area. As you eliminate each part of the circuit from the problem area, make sure to identify them on your schematic. This will help you keep track of all your information.


Step 3 – Identify Possible Causes

Once the problem area(s) have been defined, it is necessary to identify all the possible causes of the malfunction. This typically involves every component in the problem area(s).

 

It is necessary to list (actually write down) every fault which could cause the problem no matter how remote the possibility of it occurring. Use your initial observations to help you do this. During the next step you will eliminate those which are not likely to happen.


Step 4 – Determine Most Probable Cause

Once the list of possible causes has been made, it is then necessary to prioritize each item as to the probability of it being the cause of the malfunction. The following are some rules of thumb when prioritizing possible causes.

Although it could be possible for two components to fail at the same time, it is not very likely. Start by looking for one faulty component as the culprit.

 

The following list shows the order in which you should check components based on the probability of them being defective:

 

o    First look for components which burn out or have a tendency to wear out, i.e. mechanical switches, fuses , relay contacts, or light bulbs. (Remember, that in the case of fuses, they burn out for a reason. You should find out why before replacing them.)

o    The next most likely cause of failure are coils, motors, transformers and other devices with windings. These usually generate heat and, with time, can malfunction.

o    Connections should be your third choice, especially screw type or bolted type. Over time these can loosen and cause a high resistance. In some cases this resistance will cause overheating and eventually will burn open. Connections on equipment that is subject to vibration are especially prone to coming loose.

o    Finally, you should look for is defective wiring. Pay particular attention to areas where the wire insulation could be damaged causing short circuits. Don't rule out incorrect wiring, especially on a new piece of equipment.


Step 5 – Test and Repair

Testing electrical equipment can be hazardous. The electrical energy contained in many circuits can be enough to injure or kill. Make sure you follow all your companies safety precautions, rules and procedures while troubleshooting.

Once you have determined the most probable cause, you must either prove it to be the problem or rule it out. This can sometimes be done by careful inspection however, in many cases the fault will be such that you cannot identify the problem component by observation and analysis alone. In these circumstances, test instruments can be used to help narrow the problem area and identify the problem component.

 

Please remember that the best instrument to test if a circuit is de-ernegized before working on it is the wiggy or solenoid type tester. In recent years many electricians and even meter manufacturers have forgotten the purpose of the solenoid tester. It was always intended to be a magnetic solenoid operating tester that vibrated when current was passed through the leads. This is a simple, NON-ELECTRONIC, method of testing current flow that does not rely on a possibly faulty electronic package.  An electrician came up with this idea a long time ago to help protect himself and his fellow electricians. Unfortunately, we have begun to abandon this great practice in favor of electronic packages which can fail.

 

There are many types of test instruments used for troubleshooting. Some are specialized instruments designed to measure various behaviors of specific equipment, while others like the multimeters are more general in nature and can be used on most electrical equipment. A typical multimeter can measure AC and DC Voltages, Resistance, and Current.

 

A very important rule when taking meter readings is to predict what the meter will read before taking the reading. Use the circuit schematic to determine what the meter will read if the circuit is operating normally. If the reading is anything other than your predicted value, you know that this part of the circuit is being affected by the fault.

 

Depending on the circuit and type of fault, the problem area as defined by your observations, can include a large area of the circuit creating a very large list of possible and probable causes. Under such circumstances, you could use a “divide and eliminate” testing approach to eliminate parts of the circuit from the problem area. The results of each test provides information to help you reduce the size of the problem area until the defective component is identified.

 

Once you have determined the cause of the faulty operation of the circuit you can proceed to replace the defective component. Be sure the circuit is locked out and you follow all safety procedures before disconnecting the component or any wires.

 

After replacing the component, you must test operate all features of the circuit to be sure you have replaced the proper component and that there are no other faults in the circuit. It can be very embarrassing to tell the customer that you have repaired the problem only to have him find another problem with the equipment just after you leave.



 

 

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E Light Electric Services, Inc.
Excellence in Electrical
361 Inverness Drive South, Suite B, Englewood, CO 80112 
(303) 754-0001
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This page was last updated: August 30, 2016