2017 Master Electrician Ref. 2.0.8

Master Electrician Reference (MER), abbreviated as MER, is a comprehensive and user-friendly electronic pocket electrician reference guide for professionals in the electrical industry. From electrical designers and engineers to installers, contractors, facility managers, inspectors, exam candidates, apprentices, electricians, journeymen, architects, and technicians, MER caters to a wide range of individuals involved in residential, industrial, and commercial electrical work.

One of the standout features of MER is its ability to provide easy and immediate access to crucial information on your mobile device, whether it's an iPhone, iPod Touch, or iPad. This eliminates the hassle of losing or damaging pages that you may experience with traditional pocket reference books. Additionally, MER takes it a step further by offering calculation capabilities that surpass those of a regular pocket reference book.

The content of MER is organized into various sections, each addressing different aspects of electrical work:

• Simple Circuits: Covers essential topics such as Ohm's law, series and parallel circuits, capacitance, inductance, impedance, and reactance.
• Distributed Systems: Provides distribution wiring diagrams for different voltages (120, 208, 277, and 480 volts), color codes, breaker sizes, light switches and bells diagrams.
• Electrical Formulas: Features formulas for calculating kVA, kW, and HP.
• Color Codes: Includes color codes for capacitors and resistors.
• Motors and Wiring: Contains information on standard motor and motor starter sizes, tables of full-load currents and locked-rotor information, overload units, OCPD (Overcurrent Protection Device), nameplate information, synchronous motor speeds, three-phase STAR and DELTA diagrams, three-wire start-stop diagram, motor frame dimensions, and motor enclosure types.
• Transformers: Provides KVA ratings for single- and three-phase current and transformer formulas.
• Conductor Properties: Presents conductor tables, AWG and metric wire sizes, twist-on pressure connectors, and wire combinations.
• Ampacities: Offers ampacity information in raceway, cable, earth, and free air, along with derating tables.
• Conduit Fill Table
• Grounding Sizes: Covers equipment grounding conductor (EGC) and grounding electrode conductor (GEC).
• Metal Boxes: Contains images and sizes of metal boxes including junction/device boxes and pull boxes.
• Voltage Drop Calculations
• Dictionary of Electrician Terms
• Insulation Charts: Includes a table of cable and wire types.
• Electrical Symbols
• NEMA: Consists of plugs and wiring diagrams, enclosure types, standard underground boxes, standard fuse and breaker sizes, standard pull box/junction sizes, standard gutter and wire-ways, standard switchboards, standard busway, standard busbar ampacity, standard panelboard sizes, and standard disconnect sizes.
• Math and Conversions: Provides formulas for algebra, geometry, fractions, temperature conversion, trigonometric tables, unit conversions, metric prefixes, and conversions between inches and millimeters.
• Conduit Bending: Includes a guide called "The Master Bender Way" on how to bend conduit. More information can be found on the Master Bender app or the MasterBender.com website.
• Conduit Weights
• Copper Wire Cost
• Hole Saw Sizes
• Material Raceway Support
• Lighting: Covers various types of lighting such as fluorescent, high-intensity discharge, incandescent, LED, and low-pressure sodium.
• Standard Tool List
• Torque: Provides information on lugs, bolts, and screws tightening torque.
• Dry, Damp, and Wet Locations
• Hazardous Locations
• Wiring Methods
• Safety: Offers information on lock-out/tag-out procedures (LOTO) as well as a safety manual and first aid guidance.

A notable feature of MER is the inclusion of a general scientific calculator on most pages. This calculator allows you to enter expressions and evaluate them, with support for trigonometric functions, power functions, conversion between radians and degrees, and basic constants like pi and e.

MER also includes key tables derived from the National Electrical Code (NEC) 2017. For those working with NEC 2011 and NEC 2014 code years, MER apps dedicated to those versions are available as well.

For more information about MER and its features, please visit our website at MasterSparky.com.