...that electricity cause more than 20,000 fire a year, almost half of all accidental UK house fire. Each year, about 70 people are killed and 350,000 are seriously injured due to an electrical accident in the UK. Modern living has meant we use more and more electrical appliances in the home. For instance, just 20 years ago the average uk home had a hi-fi system and one TV whereas today it is more likely that there are at least two TVs, games console, microwave and computer.so that risk of electricity accidents in the homes are more higher than before. It has seen in the UK that there are lots of people drying their cloths on electrical heater. This is particularly dangerous and could cause electric shock or fire. Heater have ventilation slots to prevent overheating. If this slots are covered up, the appliance could over heat and catch fire. Many time people are drilling the wall to fix nail without knowing what is behind it.it may be gas line or electrical line behind wall. By this way we can invite trouble at home. We can expect to find around four socket in an average room in the house. Although this is enough for most purpose, an increase in the use of the computers, games consoles and other appliances has led to the number of sockets being needed in an average room to increase to eight....
Words: 965 - Pages: 4
... precision measurement tools and dimensional gauging. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC HYDRAULICS MTX 105 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of hydraulics. Topics include hydraulic power systems, hydraulic circuits, principles of hydraulic pressure and flow and various types of hydraulic valves. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. BASIC PNEUMATICS MTX 107 Fall 2 Credits 11 hours of lecture - 22 hours of lab Fundamentals of pneumatics. Topics include pneumatic power systems, basic pneumatic circuits principles of pneumatic pressure and flow and pneumatic speed control. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional Unit. ELECTRIC MOTOR CONTROL 1 MTX 110 Fall 4 Credits 22 hours of lecture - 44 hours of lab Fundamentals of electric motor control. Topics include electrical safety, control transformers, overload protection, ladder logic, control relays, electronic sensors, and other topics related to the fundamental operation of electronic motor control. Prerequisite: A grade of "C" or better in ELEC 101, 102, and 121; or concurrent enrollment in ELEC 101, 102, and 121; or consent of Instructional...
Words: 2156 - Pages: 9
...Reports Safety Awareness & Rules Reading Blueprints & Specs OSHA, DOT & EPA Requirements Perfect Safety Record, No Accidents Reducing Operational Costs Summary of Qualifications EXPERTISE COMMUNICATION Installation, troubleshooting, and start-up of electrical systems, including circuit breakers, transformers, and lighting systems, as well as installation of cable, conduit, parts, and equipment. Utilize voltmeters, Meggars, ohmmeters, blueprints, schematics, and equipment in the industrial environment. Skilled in use of power equipment, cranes, lifts, and tools. Perfect Safety Record. Well-developed communication skills demonstrated through ability to read and interpret technical drawings and instruction manuals, effective interaction with superintendents, managers, vendors, and co-workers. Utilize listening skills, prepare program reports, attend technical training and certification sessions, and observe strict professional and safety regulations. EXPERIENCE ISC CONTRACTORS; Baton Rouge, Louisiana Lead Hand / Electrical Journeyman Contractor; 2009 to Present Currently serve as Lead Hand for a major contracting corporation with accountability for following prescribed safety and operational procedures, performing service, and locating, marking, troubleshooting, installing, and repairing facilities and lines in a variety of weather and environmental conditions. Mitigate hazards, ensure permit requirements are adhered to for all work, and provide input to estimates, schedules...
Words: 574 - Pages: 3
...Executive Summary Storage devices and backup media The storage is where we save or backup our files. The most common storage device and backup medias are: floppy disk drive, hard disk drive, optical drives, and removable storage devices. Motherboard components, types and features A motherboard is “a circuit board in a minicomputer or microcomputer through which all signals are directed.” The motherboard is one of the most important components of a computer. Power supplies types and characteristics The power supply is an electronic device that supplies electric energy to an electrical load. The power supply of a computer converts the alternating current to direct current. Purpose and characteristics of CPUs and their features The main purpose of the CPU is to control and direct all the activities of the computer using both external and internal buses. There are also many different types and features of CPUs. It is necessary to have a CPU for the computer to function. Cooling methods and devices As you continue to use the computer for long hours, it might heat up, so it is necessary to have a cooling fan, it helps the heat to travel away from the CPU to prevent it from overheating that may lead to some problems. Memory types, its characteristics and purposes The RAM or memory is a form of computer data storage. There are different types of memory. Some common types of memory are: DRAM, SRAM, SDRAM and DDR. Different display devices and their characteristics There...
Words: 594 - Pages: 3
...Lab 4 NT1210 Cristian Randle Lab 4.1: Copper Cabling 4.1.1: So that NIC’s on different ISP providers can communicate to each other. 4.1.2: The copper wiring is used to power appliances and other devices so it has a high capacity for transmitting electricity. 4.1.3: More expensive shielded cables cause far less interference. Steel reinforced concrete, radio transmitters. 4.1.4: Category | Maximum Speed | Application | 1 | 1 Mbps | Telephone cabling (POTS) | 2 | 4 Mbps | Token Ring | 3 | 10 Mbps | Token Rink | 4 | 16 Mbps | Token Ring Networks | 5 | 100 Mbps | Ethernet, Fast Ethernet, Token Ring | 5e | 1Gbps | Ethernet, Fast Ethernet, Gigabit Ethernet | 6 | 10 Gbps | GigabitEthernet, 10G Ethernet | 6a | 10 Gbps | GigabitEthernet, 10G Ethernet | 4.1.5: 4.1.6: Plastic jacket, metallic shield, dielectric insulator and center core. 4.1.7: Only good under 100 meters 4.1.8: Both straight and crossover cables 4.1.9: S2 to G is too far away to work. Fiber optics would be needed. 4.1.10: Multi-meter: It can be used to locate the failure of electrical system and the defective parts. Tone generator: It acts as a testing device for informational signals that come handy when dealing with telephone systems. Pair Scanner: Identifies connection hosts on a subnet. Time Domain Reflectometer: Locate and identify faults in all types of metallic cables Lab 4.1 review: 1. Less confusion, need only one type of cable easier to install, less time consuming...
Words: 739 - Pages: 3
...in pspice simulation is peak current.The value of rms current if converted to peak current have to multiply by 2 . Current when RL = 50Ω from calculation if multiply by 2 will get 4.234 A which is almost the same with Pspice simulation. Same goes when RL = 200, from calculation 2.306 x 2 = 3.261 A, which give the value almost the same with current from Pspice simulation. In calculation method, the value of current through RL is obtained using the Norton’s theorem. Each RL is calculated using the equivalent Norton’s circuit. Norton theorem is used to simplify the circuit to make the calculation easier. Below show the equivalent circuit using Norton theorem to obtain the current through RL. Norton equivalent circuit Based on the table above, the results through simulation and calculation are similar which proves the calculation is correct. At first, the result obtained from calculation is quite different from the simulation results. After some troubleshooting, there is some error detected in calculation which is regarding the Vs value. The value given for the Vs is in peak value, but in the simulation the value given is in the RMS value. So, as the solution the value of Vs is need to be converted first...
Words: 927 - Pages: 4
...HP ProLiant MicroServer User Guide Abstract This document is for the person who installs, administers, and troubleshoots servers and storage systems. HP assumes you are qualified in the servicing of computer equipment and trained in recognizing hazards in products with hazardous energy levels. Part Number: 615717-002 April 2011 Edition: 2 © Copyright 2010, 2011 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Microsoft, Windows, and Windows Server are U.S. registered trademarks of Microsoft Corporation. AMD is a trademark of Advanced Micro Devices, Inc. Bluetooth is a trademark owned by its proprietor and used by Hewlett-Packard Company under license. Contents Operations................................................................................................................................... 6 Power up the server ................................................................................................................................... 6 Power down the server .........................................................................................................................
Words: 22685 - Pages: 91
...811-309-000 MANUAL . EAR$ OWNERS MANUAL MODEL No. 934.20105 WIRE FEED MIG WELDER Operation Repair Parts CAUTION: Read Rules for Safe Operation and Instructions Carefully 811-309-000 SEARS ROEBUCK AND CO., CHICAGO, IL 60684 U.S.A. Table of Contents IMPORTANT SAFETY INSTRUCTIONS 1 1 2 SHOCK HAZARDS ......................... FLASH HAZARDS ......................... FIRE HAZARDS ........................... FUME HAZARDS .................... ...... Changing the Drive Roller ................... INSTALLING ALUMINUM WIRE .............. 13 16 PREPARING TO WELD 17 17 17 18 18 2 3 COMPRESSED GASSES AND EQUIPMENT HAZARDS ................................... 3 ADDITIONAL SAFETY INFORMATION ......... 4 PREPARING A SAFE WELDING WORK AREA.. PREPARING THE WORK PIECE ............. ALUMINUM WELDING PREPARATION ........ CONNECT WELDER GROUND .............. PRODUCT DESCRIPTION 5 5 5 5 5 OPERATION GETTING TO KNOW YOUR NEW WELDER .... SETTING THE CONTROLS ................. HOLDING THE GUN ....................... Position of the Gun to the Work Piece ......... Distance from the Work Piece ............... LAYING A BEAD .......................... CLEANING THE WELD BEAD ............... 19 19 19 20 20 21 21 21 SPECIFICATIONS ......................... WELDER CONTROLS AND THEIR FUNCTIONS. DUTY CYCLE ............................. INTERNAL THERMAL PROTECTION .......... ASSEMBLY AND INSTALLATION 6 6 6 7 7 7 8 8 8 9 ...
Words: 14464 - Pages: 58
...ATX Power Supply Failure Diagnostics The first step in the troubleshooting process is simply determining if the power supply is coming on. You can usually hear the mechanical components in PCs that make rotational noise when they are powered up. Noise makers include the hard drive, as its electric motor spins up the platters, and plenty of fan noise is normal for PCs without PWM (Pulse Width Modulation) fans. Your PC should also give a single beep if it passes its internal start-up diagnostic, and there are always status LED's to tell you the system is on, though some home PC builders don't bother connecting them. If your hearing isn't good, you can check to see if the power supply fan is creating a breeze. Monitors are powered independently, so unless you're looking at a notebook PC, a live screen doesn't indicate a working power supply. If your computer has a display connected, can you get a live screen, whether it's a simple text message or a colorful splash screen? If the display shows a message like "No video signal detected," that's the monitor telling you the video port isn't communicating, so you should follow the "No" path for this decision. Sometimes a CRT or older LCD may show a multiplicity of images or endless scrolling, which means the video adapter is alive and trying to transmit an image but the monitor can't interpret the signals. This doesn't happen as often with modern LCDs or expensive CRTs that can match a large range of inputs for higher screen resolutions...
Words: 4566 - Pages: 19
...of this scholastic task; Lastly, their friends for sharing their knowledge and ideas regarding theoretical aspect of the said design project. Abucejo, Jervic B. Antinopo, James Arbil E. Digamon, Rosie Gay S. ABSTRACT This study aimed to design a low cost “Laboratory Modules for Circuit Courses in St. Paul University Surigao” to help engineering students developed their skills and knowledge regarding built-in laboratory experiments. This study is entitled Laboratory Modules for Circuit Courses in St. Paul University Surigao, was aimed to developed a better understanding of electronic circuit analysis and implement a simulation of actual...
Words: 17696 - Pages: 71
...Controlled Electric Fan (TCEF) Applied Science A Research Paper Presented to CAVITE NATIONAL SCIENCE HIGH SCHOOL (Regional Science High School- REGION IV A) Maragondon, Cavite In Partial Fulfillment of the Requirements in Research 2 by JOSHUA EZEQUIEL O. ICARO IV-FLUORINE MARCH 2012 Research Plan Materials and Equipments Making the circuit diagram will be the first step. A temperature sensor will be obtained from Raon, Manila and the other components will be obtained from V&R Electronic Shop at Naic , Cavite. The components will be the capacitors, diode, potentiometer, transistors, resistors,PCB and other materials that will be used in making the product. General Procedure A circuit diagram will be retrieved in the net and then the PCB that will be obtained at V&R Electronic Shop will be place on that board. The making of PCB will be done by using a masking tape. After that, the PCB with the correct formation of tape will be etched. The researcher will use a FeCl solution that will dissolve the copper on the board.Next, the soldering of the components on the board will be done. Another PCB will be used for the circuit 2 or the circuit with the relays or the switch of the circuit from the microcontroller.The process on preparing the PCB is the same done on the first PCB.The components on the circuit 2 will also be soldered. After that, the microntroller will be connected to circuit 2 and then...
Words: 5110 - Pages: 21
...conductors. As the field of electronics has expanded in scope, however, so has its definition, and today the term encompasses all areas of technology concerned with the behavior of electrons in electronic devices and equipment, including electrical engineering. Although the field of electronics had its most spectacular growth and development during the 20th century, it is actually the product of more than 200 years of study and experiment. One of the important early experimenters in this field was Benjamin Franklin (1706-1790). His experiments with lightning and his theory that electrical charges are present in all matter influenced the thinking and established much of the vocabulary of the researchers who came after him. The invention of the electric battery, or voltaic pile, by the Italian scientist Alessandro Volta (1745-1827) in 1800, ushered in a century of significant discoveries in the field of electricity and magnetism. Researchers working through-out Europe and the United States made important breakthroughs in how to strengthen, control, and measure the flow of electrons moving through vacuums. In the late 19th and early 20th centuries, these experiments culminated in Sir Joseph John Thomson's (1892-1975) description and measurement of the particle now called the electron. During the early years of the 20th century, further discoveries along these lines were made by experimenters such as Lee De Forest (1873-1961) and Vladimir Zworykin (1889-1982). These discoveries led the...
Words: 986 - Pages: 4
...Assembly 6-17 Features / Operations 17-18 Maintenance 19-20 Troubleshooting 21 Consumer Services 22-23 Replacement Parts 24 Warranty Thanks for buying a BISSELL ProHeat 2X® We’re glad you purchased a BISSELL ProHeat 2X heated formula deep cleaner. Everything we know about floor care went into the design and construction of this complete, high-tech home cleaning system. Your ProHeat 2X is well made, and we back it with a limited one-year warranty. We also stand behind it with a knowledgeable, dedicated Consumer Services department, so, should you ever have a problem, you’ll receive fast, considerate assistance. My great-grandfather invented the floor sweeper in 1876. Today, BISSELL is a global leader in the design, manufacture, and service of high quality homecare products like your ProHeat 2X. Thanks again, from all of us at BISSELL. Mark J. Bissell President and Chief Executive Officer 2 16 IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic precautions should be observed, including the following: Read all instructions before using your PROHEAT 2X®. To reduce the risk of fire, electric shock, or injury: ■ Do not immerse. ■ Use only on surfaces moistened by cleaning process ■ Always connect to a properly grounded outlet. ■ See Grounding Instructions ■ Unplug from outlet when not in use and before conducting maintenance or troubleshooting ■ Do not leave machine when it is plugged in ■ Do not service machine when...
Words: 6774 - Pages: 28
...various types of electrical machines, their operations, and applications, as well as the method of determining their parameters. Various ways of protecting electric machines against overloads and mechanical faults are also highlighted. It is anticipated that the work presented in this paper will be of immense benefit to practicing engineers especially in areas of machine design, maintenance, and protection. (Keywords: electrical machines, operation design, maintenance, protection, stator) the stator and alternating currents are induced in the rotor by transformer action. In the synchronous machine, direct current is supplied to the rotor and Alternating Current (A.C.) flows in the stator. On the other hand, a D.C. machine is a machine that is excited from D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are inherently suitable or can be given appropriate characteristics by means of power electronics devices. Yet, the increasing complexity of industrial processes demands greater flexibility from electrical machines in terms of special characteristics and speed control. It is in this field that the D.C. machines, fed from the A.C. supply through rectifiers, are making their mark. In this paper, we shall discuss the various types of electric machines,...
Words: 3348 - Pages: 14
...EB000000 XVS1100 (L) SERVICE MANUAL ©1998 by Yamaha Motor Co.,Ltd. First edition, October 1998 All rights reserved. Any reproduction or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited. EB001000 NOTICE This manual was produced by the Yamaha Motor Company primarily for use by Yamaha dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual, so it is assumed that anyone who uses this book to perform maintenance and repairs on Yamaha motorcycles has a basic understanding of the mechanical ideas and the procedures of motorcycle repair. Repairs attempted by anyone without this knowledge are likely to render the motorcycle unsafe and unfit for use. Yamaha Motor Company, Ltd.is continually striving to improve all its models. Modifications and significant changes in specifications or procedures will be forwarded to all authorized Yamaha dealers and will appear in future editions of this manual where applicable. NOTE: Designs and specifications are subject to change without notice. IMPORTANT INFORMATION Particularly important information is distinguished in this manual by the following notations. The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Failure to follow WARNING instructions could result in severe injury or death to the motorcycle operator, a bystander or a person inspecting or repairing the motorcycle. CAUTION: NOTE: ...
Words: 52990 - Pages: 212