Principles of electrical grounding john pfeiffer, p. Pdf electrical equipment condition based maintenance. The book incorporates the requirements of the latest regulations, particularly. Aashto maintenance manual for roadways and bridges 4th edition this manual is intended for those early in their career in radway and bridge maintenance and will assist in understanding the various processes, methods, and materials that are applied to maintain bridge and highway systems effectively, aashto maintenance manual for roadways and bridges. When you select a digital product pdf or digital access, you are purchasing a license to access nfpa information electronically. Ul white book electronic version available mike holt enterprises. As a ruleofthumb using calculations for verification, egcs should not be less than 25 percent of the capacity of the phase conductors or the overcurrent device. This book contains requirements that are based on many years of experience an d were developed to meet system safety and efficiency needs while offering reasonable convenience to customers.
Electrical equipment supplies power to facilities and work projects. This document establishes the standards, guidelines and procedures for the management of space within the herbert c. Electrical power and control signals must be delivered to electrical devices reliably and safely. This edition of nfpa 70, national electrical code, was prepared by the national electrical code committee and acted on by nfpa at its june association technical meeting held june 16, 2016, in las vegas, nv.
Power conditioning equipment includes inverters, chargers, charge and load controllers, and maximum power point trackers. However, osha adopted delayed compliance deadlines for certain requirements and established this temporary enforcement policy that was in. Circuit breakers, push buttons, and other electrical parts can be. Metal frame of the building or structure where the following methods are used to make an earth connection. Ul product spec contains all the ul white book information, and more. Draft of proposed nfpa 70 2014 edition national electrical. Cheapest place to buy national electrical code handbook 2014. Hoover building hchb, and serves to promote, establish, and maintain efficient and effective space utilization. Listed or labeled equipment shall be installed and used in accordance with any. Wires, fittings, and switches are necessary for making repairs to electrical systems. To protect the authenticity of your product, certain restrictions apply. Marking and application guides are designed to assist code authorities, designers, and installers in determining the suitability of ul certified equipment for use in a particular installation. Aashto guide for snow and ice control a comprehensive overview of a snow and ice control program. Table of contents electrical training solutions mike.
Not safe daisy chaining power strips from interpower. Grounding and bonding with concentric and eccentric knockouts. The electrical systems on equipment used by the navy are designed to perform a variety of functions. Overview safety standard ul 1242 electrical metal conduitsteel. In the may issue, we described the division system outlined in the nec, which further breaks down the class. Tabbing your 2008 code book detailed instructions ul whitebook. Iaei magazine magazine dedicated to electrical safe installation practices and inspections. This paper defines the basic objectives of equipment grounding and analyzes the role of equipment grounding conductors in providing groundfault protection for electrical systems below 600 v. Food and beveragedispensing equipment, manual tsxl. This code covers the installation and removal of electrical conductors, equipment, and raceways. Marking and application guides ul code authorities.
This is a discussion of the basic principles behind grounding systems and how grounding is related to safety and the effective operation of circuit protection devices such as fuses and circuit breakers. For this reason, portable electrical equipment is usually made from aluminum or other material that will not produce sparks if the equipment is dropped. Ul white book guide information for electrical equipment. Tom henrys best selling electrical books and study guides. It is a comprehensive guide to finding solutions using british gypsum products and systems. Grounding electrode system and grounding electrode conductor part iii znec 250. Electric power generation, transmission and distribution.
Section 7 of the ansineta standard for acceptance testing specifications for electrical power equipment and systems may be reproduced and used on a cut and paste basis for the particular type of equipment to be tested. Yes, in addition to ul providing white book instructional presentations at iaei meetings as well as selected electrical apprenticeship programs, ul has recently. Types of equipment grounding conductors 3 intermediate metal conduit. The final rule also includes requirements for electrical protective equipment. The automotive electrical system contains five electrical circuits. Ul white book 2014 category dyby intermediate ferrous metal conduit. Standard for uniformly measuring and expressing the performance of electrical energy storage systems.
Maintenance engineering handbook seventh edition pdf. The guides describe the standards used to investigate the products, the intended installation codes, product markings and other information that can be. Ul white book guide information for electrical equipment 2014 unknown binding 2014. It is a free web compliance tool that works on any internetconnected device and right sizes to your screen, be it a smart phone. You are purchasing a license to access the information electronically only. Ul product spec contains all the ul white book information, and more, for electrical construction materials as well as building and firerelated construction. The following sections of the ansineta standard for acceptance testing specifications for.
Covering journeyman, contractor, master, maintenance, residential and sign licensing exams, it takes a nonstatespecific approach to its content coverage, making it a useful tool for students anywhere. Guide information for electrical equipment the white book 201516 ul product categories correlated to the 2011 and 2014 national electrical code uls general guide information is updated daily. Article 501 provides the requirements for class i locations, such as the refinery shown in photo 1. Electrical products and power management supplies can be used to run equipment and install electrical systems into buildings. Requirements for servicing of medical imaging equipment. Engineering books pdf, download free books related to engineering and many more. First published in 1972, the white book is recognised as the leading specification resource for anyone specifying partition, wall lining and ceiling systems within the construction industry.
If the ignitable material is normally present in sufficient quantities to. Such information appears in the electrical construction equipment directory, hazardous locations. Electrical installation handbook protection, control and. Ul white book guide information for electrical equipment 2014 on. It describes the purpose of snow and ice control and how to achieve. Relocatable power taps are intended to be directly. National electrical code chapter 2 article 200 covers the use and identification of grounded conductors, providing requirements for identification of terminals, wiring systems, and grounded conductors. Chapter 8 automotive electrical circuits and wiring. Basic electrical installation work provides a sound basic knowledge of electrical practice which other trades in the construction industry will. Energy storage devices used in pv systems are mainly batteries, but may also include advanced technologies like flywheels. Article 555 2017 nec marinas and boatyards, article 555 2014 nec mike holt enterprises ohms law poster 8. Standard for acceptance testing specifications for.
The 2014 edition of the ul white book will be the last printed version. Electrical national electrical wholesale providers. Havent bought one yet, just use the pdf saved on my desktop, laptop, tablet, and my phone. Aashto guide for snow and ice control engineering book.
Schneider electric industry codes and standards 2014 nec changes 8 rules for two working space entrances in 110. Eio0000000812 122014 7 about the book at a glance document scope. Nema publishes over 700 standards, application guides, white papers, and technical papers. Guide information for electrical equipment the white book 2006 ul product categories correlated to the 2005 national electrical code uls general guide information is updated daily. The low voltage directive refers to any electrical equipment designed for use at a rated voltage from 50 to v for alternating current and from 75 to 1500 v for direct current. Engineering books pdf download free engineering books. Ul white book guide information for electrical equipment 2014. National electrical code nec handbook, 2014 edition. Browse by intuitive groupings of products, systems and assemblies, or search by.