A third service cable, the neutral, connects to the neutral bus bar inside the panel. I usually wait four or five minutes -probably longer for the big power guys -and then check the voltages with my DMM before I start working on any electrical equipment. The utility company's service cables (whether overhead or underground) extend to your house and connect to the utility's electric meter. A lineman’s plier, or a bull nose plier with a wire cutter, and at least 8″or 9″ handles is also an essential part of the electrical tool list. Thanks for the following useful blog, safety is first and must while dealing with electrical work. Get access to premium HV/MV/LV technical articles, electrical engineering guides, research studies and much more! Please i want to how connect inter switch,from my generator to light . Here’s a sneak peek into some electrical engineering tools and their uses. After passing through the meter, your electrical service feeds into your home's main service panel, commonly known as the breaker box. Treat all electrical devices as if they are live or energized. Circuit layouts and schematic diagrams are a simple and effective way of showing pictorially the electrical connections, components and operation of a particular electrical circuit or system. thankssss. Also known as needle-nosed pliers. Turning off a breaker shuts off the power to all of the devices and appliances on that circuit. In the event of a fire or flash flood, or if work needs to be done on the system, a disconnect switch allows you to shut off the power from outside the home so you don't have to enter the home to turn off the power. This is a quick overview int… Safety must be our priority. 21 Safety Rules for Working with Electrical Equipment, Electrical engineer, programmer and founder of. Extension cords may not be used as permanent wiring and should be removed after temporary use for an activity or event. Please contact student services for individual lesson and textbook pricing. Side Cutter 10. This can be potentially dangerous and can possibly lead to death depending on the voltage of the item or unit. How to Determine the Size of Your Main Electrical Service, Inside Your Main Electrical Service Panel, Wiring Basics for Electrical Disconnect Switches, How to Turn Off the Power at Your Home's Breaker Box or Fuse Box, Types of Switching Devices as Defined by the NEC, Electrical Service Panel Basics Homeowners Should Know, Understanding the Terms "Line" and "Load" in Electrical Systems, Learn What Happens When an Electrical Circuit Overloads. Tell us what you're thinking... we care about your opinion! 9 If water or a chemical is spilled onto equipment, shut off power at the main switch or circuit breaker and unplug the equipment. Basic Schematic Symbols. If you're in need of hand tools for electronics — e.g. After it flows through the household system, it is fed back to the utility on the neutral wire, completing the electrical circuit. Do not rely on grounding to mask a defective circuit nor attempt to correct a fault by insertion of another fuse or breaker, particularly one of larger capacity. If applicable do it always, if not be very carefull. Short Circuit — When one part of an electric circuit comes in contact with another part of the same circuit, diverting the flow of current from its desired path. A safe work environment is not always enough to control all potential electrical hazards. When the switch is on, the circuit is "closed," and power flows beyond the switch to the light or another device it is controlling. Edvard is doing a great job in sharing the knowledge which I am sure is helpful to many electrical engineers and technicians.. There may be a dangerous fault situation in the circuit. In this way, the proper operation of the DUT can be proven or faults in the device can be traced. The content is copyrighted to EEP and may not be reproduced on other websites. Basic Electricity PDF Version. But the definition of Active Components differs according to a few electronic engineers who perform circuit analysis. People depend on electricity constantly, and when the power goes out in a storm or there's a tripped breaker or another problem in an electrical circuit, understanding the basic components of an electrical system can help you get things running again. If an electrical system does not include a separate disconnect switch, the main circuit breaker in the home's main service panel (breaker box) serves as the system disconnect. Special outlets for high-demand appliances, such as electric ranges and clothes dryers, may provide 30 to 50 or more amps of power. Service — The conductors and equipment used to deliver energy from the electrical supply system to the system being served. Good advice, thank you for your good work of educating people. They come in many different styles and colors to suit your design needs. Do not wear loose clothing or ties near electrical equipment. Get daily tips and tricks for making your best home. Soldering Tool Stand 9. This rule is very easy to forget, especially when you are showing some electrical part pointing with metallic pencil. Thanks a lot for this information. Electronics Basics: Fundamentals of Electricity. Drain capacitors before working near them and keep the short circuit on the terminals during the work to prevent electrical shock. Sienko and Plane, Chemical Principles and Properties,2. Would you recommend do it yourself wiring for amateurs or should I call in an electrician just to be safe? The lower the gauge, the larger the wire, and the more current it can handle. This Instructable will hopefully demystify the basics of electronics so that anyone with an interest in building circuits can hit the ground running. This also reduces the incidence of overloaded circuits. In the first three lessons I introduce new tools, skills and concepts. Televisions, lights, computers, freezers, vacuums, and toasters are all good examples of devices that can be plugged into an outlet. By request:- A basic guide to identifying components and their functions for those who are new to electronics. Fundamentals of Circuit Breakers. Study specialized technical articles, electrical guides, and papers. Great content, covered most everything to troubleshoot the 24 VDC circuits. This precaution reduces the likelihood of accidents that result in current passing through the chest cavity. its really really important to know this inst. The major electrical and electronic components used in electrical and electronic projects mainly involve these components like resistors, capacitors, fuses, transistors, integrated circuits, relays, switches, motors, circuit breakers, etc. Over here you will get to know about the 21 safety rules for working with electrical equipment.Things to be considered include many options listed in this link. De-energize open experimental circuits and equipment to be left unattended. So, Thank you so much again! If you are working on electrical circuits or with electrical tools and equipment, you need to use following golden safety rules: Avoid contact with energized electrical circuits. Read the single line diagram and wiring schemes – know your switchboard. Question 1 A chandelier has five light bulbs in it, and one of them is not working. The programme is a presentation by Bikash Agarwal, Assistant Professor, Electronics and Communication Engineering Technology, Don Bosco. Wire Stripper 7. Timothy Thiele is an electrician who advises residential DIYers on how to make home installation projects safe and easy. I couldn’t think any other rules, however I would make one change and that would be to combine rule 3 with rule 13. The most common cause of a tripped breaker is a circuit overload. At times accidents do not occur due to negligence but unintentional short cuts in the process of rushing to get unplanned work finished. Jeweler’s Screwdriver Set 8. Standard, Long-Nosed Pliers. This safety precaution while working with electricity can actually reduce the passing of current through your body. Hack saw 6. It's also important to know who is responsible for what portion of your electrical service. There are certain tools they require to carry out their job effectively and safely without causing any harm to themselves and those around them. Switches are the devices that turn on and off lights and fans in your home. The meter runs only when electricity is used in the house. Wire size is given in its gauge number. Hi Thanks for sharing the information about the 21 safety rules for working with elelctrical equipments, It very helpful as I’m writing my assignment . Introducing "One Thing": A New Video Series, The Spruce Gardening & Plant Care Review Board, The Spruce Renovations and Repair Review Board. hope people keep in mind these tips. You have done a great research for I feel, thanks for sharing. It is recommended that you stay away from live wires and make sure that these are far from the reach of children. — Circuit Specialists has what you're looking for at the lowest possible prices. From there, it's called the load side, and everything on the load side is your responsibility. Very logical. It also covers the basics of electronics: what components you need to know, and how to choose components for your circuit. Academic Program for Nuclear Power Plant Personnel, Volume IV, Columbia, MD: General Physics Corporation, Library of Congress Card #A 326517, 1982. This also apply to Solar Energy users. Thank you Brunolda. Many home electrical systems include a dedicated disconnect switch that is mounted on an outside wall of the home near the electric meter. Directions: On a separate piece of paper, classify the different kinds of hand tools according to their specification in Consumer Electronics Servicing. In potentially wet areas of a home, such as bathrooms, kitchens, and laundry rooms, some or all of the outlets must have GFCI (ground-fault circuit-interrupter) protection, provided by GFCI outlets or a GFCI breaker. The breakers for the branch circuits fill the panel (usually below) the main breaker. I recommend you to read it and do the steps to get comfortable with building circuits. They should have wire cutting knives as well. These components have a minimum of two terminals which are used to connect to the circuit. Enclose all electric contacts and conductors so that no one can accidentally come into contact with them. I will learn from you and I will sharing these knowledge. Thank you so much updating safety rule..we will sure follow this safety rule. Thanks to the author for sharing good safety tips. It usually consists of an enclosure, a variety of electrical components, and often a power switch. Thank you for sharing it. Hand Tools Specification 1. Devices are all the things in the house that use electricity, including switches, receptacles (outlets), light fixtures, and appliances. Minimize the use of electrical equipment in cold rooms or other areas where condensation is likely. Thanks. Conduit is a rigid metal or plastic tubing that protects individual insulated wires. You must be very cautious and work safely. I will show her this article and make her learn all the rules. If you're running a high-demand appliance, such as a vacuum, toaster, or heater, and the power goes out, you've probably overloaded the circuit. Back to Top Dear edward syangi, How to arrest humming sound in lv busbar trunking system? Basic Electrical Theory REFERENCES. Rule no. Thanks Mr Edvard for the life saving tips on electricity, Many of above tips are so common that probability to be forgotten is very high ;). I am sure many people will come to read this in future. After all, the whole purpose of electronics is to get electricity to do useful and interesting things. I couldn’t agree more when you mentioned avoiding making direct contact with energized electrical circuits. Wonderful explanation about safety rules to be applied to prevent injuries and Equipment damages or even death. If equipment must be used in such areas, mount the equipment on a wall or vertical panel. Always remind them not to play with electricity. Air ionizers and antistatic systems and supplies reduce static electricity to help ensure a safe environment for building and testing electronic devices. Afterall, it’s stupid to do so. 14 likes. Act like an electrical engineer, you are not on the beach. In simple terms, electricity is supplied to the house on the hot wires. You never know. The latter is called a dedicated circuit. Electronic components are basic discrete devices in any electronic system to use in electronics otherwise different associated fields. Storage. In addition, you could use plastic storage bins that … These 21 rules seem to be good with one exception: rule 17. Active components are defined as the devices that depend on energy source and can introduce power into a circuit. Maintain hand tools and equipment LO 2 Perform basic preventive maintenance of electronic tools and equipment Your success in this exploratory course on Consumer Electronics Servicing is shown in your ability to perform the performance standards found in each Lesson. Objective: Explain basic electrical principles. I have seen pictures of the hands of individuals who practiced this rule and hand their hand blown to smithereens! Never touch another person’s equipment or electrical control devices unless instructed to do so. I was trying to explain my 7 years old daughter how dangerous electricity is. This law basically states that current into a node will equal the current out of the node. Electronics Class: While it may seem intimidating at first, learning electronics is fun and easy. Resistors come in a variety of resistance values (how much they resist current, measured in units called ohms and designated by the symbol Ωand power ratings (how much power they can handle without burning up, measured in watts). It is commonly used where wiring for appliances, such as dishwashers and garbage disposers, is exposed. Power is always present in the utility service lines and the electric meter unless it is shut off by the utility. Great work. Electrical Safety Basics. Electronic components can be small and it’s a good idea to keep everything organized.