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ELECTRICAL INSPECTION, DIAGNOSIS, REPAIR
AFCIs ARC FAULT CIRCUIT INTERRUPTERS
ALUMINUM WIRING HAZARDS & REPAIRS
AMPS VOLTS DETERMINATION
APPLIANCE EFFICIENCY RATINGS
BOOKSTORE - ELECTRICAL
Cadet & Encore Heater Recall
CIRCUIT BREAKER SIZE for A/C or HEAT PUMP
Classified CIRCUIT BREAKER WARNING
CUTLER HAMMER PANEL FIRE
CORROSION in ELECTRICAL PANELS
DEFINITIONS of ELECTRICAL TERMS
DIRECTORY OF ELECTRICIANS
DMM Digital Multimeter, How to Use
ELECTRIC METERS & METER BASES
ELECTRIC MOTOR DIAGNOSTIC GUIDE
ELECTRIC MOTOR OVERLOAD RESET SWITCH
ELECTRIC PANEL AMPACITY
ELECTRIC PANEL INSPECTION
ELECTRIC PANEL MOISTURE
Electric Power Frequency Table
EMF RF FIELD & FREQUENCY DEFINITIONS
ELECTRICAL GROUND SYSTEM INSPECTION
ELECTRICAL SERVICE DROP
ELECTRICAL SERVICE ENTRY WIRING
EMF RF FIELD & FREQUENCY DEFINITIONS
FIRE SAFETY Checklist, CPSC
GFCI PROTECTION,Testing GFCIs AFCIs
HEATING COST FUEL & BTU Cost Table
HEAT TAPE USAGE GUIDE
Hertz - Definitions of KHz MHz GHz THz
KNOB & TUBE WIRING
LIGHTING, EXTERIOR GUIDE
LIGHTING, INTERIOR GUIDE
LIGHTNING PROTECTION SYSTEMS
LOW VOLTAGE BUILDING WIRING
LOW VOLTAGE TRANSFORMER TEST
MAIN DISCONNECT AMPACITY
MOISTURE SOURCES in PANELS
MURRAY SIEMENS Recall
PHOTOVOLTAIC POWER SYSTEMS
PUSHMATIC - BULLDOG PANELS
REMOTE ELECTRIC POWER, PHOTOVOLTAIC
RUST in ELECTRICAL PANELS
SAFETY for ELECTRICAL INSPECTORS
SE CABLE SIZES vs AMPS
SIEMENS MURRAY Recall
THERMAL EXPANSION of HOT WATER
THERMAL EXPANSION of MATERIALS
UNDERGROUND SERVICE LATERALS
VOLTS / AMPS MEASUREMENT EQUIP
WIND TURBINES & LIGHTNING
ZINSCO SYLVANIA ELECTRICAL PANELS
DMM - digital multimeter safety: this article discusses safety procedures to follow when using digital multi meters or DMMs or VOMs. We describe safety procedures for inspecting residential electric panels and building wiring using DMMs, volt meters, VOMs, and similar electrical test equipment. These DMM/VOM safety procedures aid in addressing safety hazards found at residential electrical panels and electrical wiring systems and are intended for the electrical inspector, home inspector, or other professionals who examine residential electrical systems. Safe electrical inspection procedures and safe use of volt meters, DMMs, multimeters, and similar electrical test equipment are discussed. Original text: DF, as ASHI Technical Journal Staff, January 1992, with updates through 2012. Also see SAFETY: ELECTRICAL INSPECTION SAFETY and see DMM Digital Multimeter, How to Use. To measure amps or current see AMPS MEASUREMENT METHODS; to measure volts or voltage levels see VOLTS / AMPS MEASUREMENT EQUIP.
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High energy measurement instruments: Use only DMM's (digital multi meters) or VOMs (volt-ohm meters, the analog predecessors to DMMs) designed for high energy measurements.
Frequently check for damage to the meter itself, or for loose, cut, or worn test leads. If you can see the conductor in the leads, replace them. Check that there is low resistance between the leads themselves - a partial indication of good condition.
Use well insulated test leads that have finger guards.
Don't use a DMM or VOM meter having cracked or loose parts. In selecting a meter, look for recessed input jacks to reduce shock risks at the connectors.
8.3 During an electrical system inspection the inspector is NOT required to
Do Not Grab an Shake SEC Entry Mains in the Panel
In his final electrical seminar in St. Louis a decade ago, Bob Smith, a lecturer from SHRC, the Small Homes Research Council, told ASHI home inspectors and candidates that he always verifies the quality of the service connection at the main breaker by grabbing the two hot entrance wires and giving them and the panel a good shake.
Watch out: Don't do this! Readers would not be warned here if this questionable advice had not been presented at that seminar. Electricians and trained experts work with live electrical wires. Home inspectors should not do so.
October 22, 1988 - El Cajon, CA - a young electrician died when he accidentally electrocuted himself. Acting police Lt. Carl Case said 19-year-old Sean M. Smith was working under a house, lying on his back working on an electrical addition to the house, when his wire [strippers] accidentally connected with a live wire. He said Smith's boss, Troy Beatty, heard the victim yell. Beatty found Smith unconscious under the house, pulled him out, performed CPR, and summoned help. -- IAEI News, November/December 1990 p.40.
These electrical inspection suggestions are not a complete inventory of all electrical components that should be inspected; these notes focus on identification of conditions that may present special electrical hazards for the electrical inspector.
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General Electrical Safety Suggestions describes important basic safety procedures, clothing, gloves, eye protection, and other safety equipment for home inspectors and electrical inspectors.
Safety Warnings for Electrical Inspectors & Home Inspectors Using Electrical Test Equipment on Building Electrical Systems & Devices
See Safety Hazards and Safe Inspection Procedures at Residential Electric Panels.
Safety Warning: The ASHI Standards of Practice and other home inspection standards for electrical inspections do not require the inspector to insert any instrument into the service panel. Therefore this testing is optional. It's also a dangerous procedure that can damage electrical equipment or worse, cause electrical shock, or even death, and should not be undertaken unless the person conducting the examination is trained and competent to avoid electric shock. If the inspector is not trained for this procedure s/he should never insert any instrument or tool into electrical equipment. See Safety Hazards and Safe Inspection Procedures at Residential Electric Panels.
Simpson Instruments adds the following safety advice for users of VOMs and DMMs and similar test devices, and other instrument manufacturers offer similar cautions: 
Fluke adds this safety advice: To avoid possible electric shock or personal injury, follow these guidelines: 
Additional Advice to Avoid Damaging VOM or DMM & Equipment
Fluke adds this advice: To avoid possible damage to the Meter or to the equipment under test, follow these guidelines: 
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