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L-5 Limited Electrical Contractor (2020-09-02)
The holder of this license may perform only work limited to low voltage, alarm or signal work, audio and sound systems. The installation or repair of any telecommunication work is not authorized with the exception of the interface wiring from an alarm system to an existing telephone connection for monitoring purposes. The voltage of the system is not to exceed 25 volts or five amperes where such work commences at an outlet receptacle or connection previously installed by a person holding the proper electrical license. The requirements to qualify for this license examination shall be two (2) years as a properly licensed journeyperson or at least six (6) years of equivalent experience and training.
Minimum Passing Score of 70%
Time Allowed - 1 Hour
Closed Book These books are for pre-test study only and are not available for use during the test.
Rewritten and extensively updated, the full-color 2017 edition NEC® Handbook is the most practical and powerful resource for electrical design and installation today. Success in the electrical industry depends on your grasp of NFPA 70®: National Electrical Code® requirements and your ability to apply them correctly. Based on the 2017 NEC, the NEC Handbook clarifies concepts for a better understanding of the Code. It's a powerful communication tool that helps you explain the NEC to clients and others who might not have professional electrical training. The new NEC Handbook reflects industry trends and Code changes that impact residential, commercial, and industrial work. Order the 2017 edition of the NEC Handbook, the resource trusted by electrical contractors, engineers, electricians, safety officials, inspectors, and architects nationwide. (Hardbound, 1,367 pp., 2017)
1.1 Scope. 1.1.1 NFPA 72 covers the application, installation, location, performance, inspection, testing, and maintenance of fire alarm systems, supervising station alarm systems, public emergency alarm reporting systems, fire warning equipment and emergency communications systems (ECS), and their components. 1.1.2 The provisions of this chapter apply throughout the Code unless otherwise noted
Publication Year: 2002
Are you ready to learn live sound reinforcement using the best-selling title on the subject available? This simple language, detailed illustrations, and concrete examples in this book are suitable for novice to intermediate-level users. "Live Sound Reinforcement" outlines all aspects of P.A. system operation and commonly encountered sound system design concerns. The topics include microphones, speaker systems, equalizers, mixers, signal processors, amplifiers, system wiring and interfaces, indoor and outdoor sound considerations and psycho acoustics.
*THIS BOOK IS NO LONGER IN PRINT AND IS NO LONGER AVAILABLE TO PURCHASE
*PLEASE CONTACT US FOR MORE INFORMATION*
Publication Year: 2009
Cabling is one of the fastest changing technologies, and Data, Voice and Video Cabling, 3rd Edition, has been updated to address all the latest developments in premises cabling, including technologies and applications in copper, fiber, and wireless cabling. This text is organized to aid in the understanding of cabling, by following a logical format that covers background information on communications systems and media first, and then delves into more detailed discussions on each media type: copper, wireless, and fiber. Separating the key concepts into specific sections also helps to minimize confusion between the unique installation practices among the different technologies. Within each section, topics progress from the basics to components, installation, and testing to assist in the development of individual skills. This book also provides readers with important background and resources regarding the most recent cabling standards, which are an integral part of this fast-paced industry.
Publication Year: 2020
Ugly’s Electrical References, 2020 Edition is the essential on-the-job reference tool for electrical industry professionals.
The 2020 Edition offers the most pertinent, up-to-date information for electricians, including updated National Electric Code (NEC) and table change information, mathematical formulas; National Electrical Manufacturers Association (NEMA) wiring configurations; a conduit bending guide, ampacity and conduit fill information, transformer and control circuit wiring diagrams, and conversion tables.
The 2020 Edition:
Reflects changes to the 2020 NEC
Features expanded coverage of the following topics:
Junction Box size calculations
Selecting, testing, and using multimeters to measure voltage, resistance, and current
Selecting, testing, and using a clamp-on ammeter to measure current
Selecting, testing, and using a non-contact voltage tester
Publication Year: 2017
Throughout the United States and around the world, NFPA 70: National Electrical Code (NEC) sets the foundation for electrical safety in residential, commercial, and industrial occupancies. The 2017 edition of this trusted Code presents the latest comprehensive regulations for electrical wiring, overcurrent protection, grounding, and installation of equipment. Major additions reflect the continuing growth in renewable power technology. Other NEC revisions protect the public and workers from deadly hazards. Work with the latest requirements governing public and private buildings, homes, and structures; outdoor yards and lots; utility equipment; installations that connect to the power grid; and consumer-owned power generation systems and equipment. The 2017 NEC is better aligned with the safe work practices in NFPA 70E: Standard for Electrical Safety in the Workplace.