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Dear shopper: We hope you'll find our items interesting and useful [All derivative (i.e. change in media; by compilation) work from this underlying public domain/public release, anonimous, or non-UScopyrighted data is COPYRIGHT © The Learning Company* Check the laws of your country. FACILITIES ENGINEERING - ELECTRICAL INTERIOR INSTALLATIONS AND FACILITIES give copies to your employees! This manual provides guidance to facilities maintenance personnel in the maintenance of interior electrical systems of 600 volts and less. These systems include such components as illumination, low voltage systems, rotating equipment, motor control centers, solid-state equipment, transformers, and switchgear. It also applies to low voltage controlled devices on high-voltage systems. The procedures presented in this manual are basic and can be applied to the equipment of any manufacturer. Detailed information and instructions should be ob-tained from the instruction book for the particular type of equipment being serviced. SWITCHGEAR ASSEMBLIES 600V OR LESS Bus bar and terminal connections Auxiliary switch gear equipment Maintenance of electric motors Alternating current (AC) motors. Motor operating considerations Components and maintenance of motor controls. Preventive maintenance and trouble-shooting guide SOLID-STATE ELECTRONIC EQUIPMENT Electrical disturbances (power quality) Disturbance measurement and monitoring Ground fault interrupting methods High intensity discharge lighting (HID) BACK-UP, SECURITY, AND PROTECTION SYSTEMS Emergency and stand-by systems Polychlorinated biphenyls (PCBs). Equipment ground resistance testing. System ground resistance testing Battery specific gravity test. Drawout circuit breaker positions . Power circuit breaker main and arcing contacts. Electromechanical trip device time-current curve Typical drawout network protector and enclosure Network protector removable unit. Typical contact construction for a network protector. Large cell for a stationary battery. Cutaway view of squirrel-cage induction motor. Cutaway view of wound-rotor induction motor Cutaway view of synchronous motor Primary parts of an AC induction motor Cleaning and drying motors in place Bearing installation precautions . Construction of ball and roller bearings. Cutaway view of a typical DC motor Main types and connections of DCmotors Armature of a large DC motor on stands Inspecting and installing brushes on a large DC motor Cutaway section of a commutator . . Example of eccentric commutator . Dial gauge to measure commutator concentricity Connections for testing motor insulation resistance. . Combination starters in NEMA enclosures. Coordination of motor overload relay and current limiting fuse. Cutaway view of typical molded case circuit breaker Molded case circuit breaker time-current curve Underwriters’ Laboratories Cartridge fuse classification . Typical heater selection table for thermal overload device A NEMA size 6 magnetic contactor (courtesy of Siemens-Allis) . Connections for testing low voltage cable insulation Characteristics of diodes and Zeners Methods o fsolidly grounding the neutral of three-phase systems Methods of resistance grounding the neutral of three-phase systems Grounding for electronic and ADP systems. Ground fault circuit interrupter operation Preheat fluorescent lamp andfixture components Trouble-shooting fluorescent lighting . Sample computer-based fire detection system Class A and B fire detection circuits Padlock and multiple lock adapter Eye and face protection selection guide. Set-up for measuring AC voltage . . Set-up for measuring resistance Set-up for testing phase sequence. Diagram of megohmmeter connections Comparison of water flow with electric current Curves showing components of measured current during insulation testing Typical curves showing dielectric absorption effect in a time-resistence or double-reading test Resistive components of a made electrode Soil resistivity vs moisture content of red clay soil. Soil resistance vs depth of electrode. Earth electrode with hemispheres Fall-of-potential method graph. Reading the hydrometer float . U.S. standard bolt torques for bus connections heat treated steel Trouble-shooting procedures for switchgear equipment Nameplate voltage ratings of standard induction motors AC synchronous motor trouble-shooting DC motor generator trouble-shooting Motor control preventative maintenance guide Motor control trouble-shooting chart sizes, insulation thickness, test voltages Cable maintenance overheating problems Power quality problems summary Common trade names for PCB by manufacturers. Tools and equipment for effective electrical maintenance Interpreting insulation resistance test results Condition of insulation indicated by dielectric absorption ratios Percentage of failure cause since maintained Equipment failure rate multipliers vereus maintenance quality Interior wiring and lighting system graphics for illustrative purposes only; may differ from item's pub. domain (please look at our rules and privacy policy) |
I.Chandler@machine--tools.com (Imogene Chandler) for additional information. This email is used for forwarding to newsgroup user.
