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ELECTRICAL INSPECTION, DIAGNOSIS, REPAIR

ACCURACY vs PRECISION of MEASUREMENTS
AFCIs ARC FAULT CIRCUIT INTERRUPTERS
ALUMINUM SECs & WIRING
ALUMINUM WIRING HAZARDS & REPAIRS
AMPS & VOLTS DETERMINATION
AMPACITY - the LIMITING FACTOR
APPLIANCE EFFICIENCY RATINGS

BACKUP ELECTRICAL GENERATORS
BOOKSTORE - ELECTRICAL
BUILDING SAFETY HAZARDS GUIDE

Cadet & Encore Heater Recall
CIRCUIT BREAKER FAILURE
CIRCUIT BREAKER SIZE for A/C or HEAT PUMP
Classified CIRCUIT BREAKER WARNING
CONDUIT, ELECTRICAL
CORROSION in ELECTRICAL PANELS
CORROSION & MOISTURE SOURCES in PANELS
CUTLER HAMMER PANEL FIRE

DEFINITIONS of ELECTRICAL TERMS
DIRECTORY OF ELECTRICIANS
DMM Digital Multimeter, How to Use

ELECTRIC HEAT
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
ELECTRICAL BASICS
EMF RF FIELD & FREQUENCY DEFINITIONS
ELECTRICAL GENERATORS
ELECTRICAL GROUND SYSTEM INSPECTION
ELECTRICAL GENERATORS
ELECTRICAL GROUND SYSTEM INSPECTION
ENERGY SAVINGS in buildings

FEDERAL PACIFIC FPE HAZARDS
FIRE SAFETY Checklist, CPSC

GENERATORS, ELECTRICAL
GFCI PROTECTION,Testing GFCIs AFCIs

HEATING COST FUEL & BTU Cost Table
HEAT, ELECTRIC
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
MAIN DISCONNECT AMPACITY
MOISTURE SOURCES in PANELS
MULTI-WIRE CIRCUITS
MURRAY SIEMENS Recall

PHOTOVOLTAIC POWER SYSTEMS
PUSHMATIC - BULLDOG PANELS
RUST in ELECTRICAL PANELS
SAFETY: ELECTRICAL INSPECTION SAFETY
  Shock Risk Statistics
  Outside Electrical Inspection
  Electric Meter & Service Entry
  Local Electrical Grounding
  Electrical Panel Interior Inspection
  Removing Electric Panel Covers
  Electrical Panel Cover Screws
  Electrical Panel Interior Hazards
  Testing Main Breakers or Fuses
  Inspect Breakers, Fuses, Circuits
  Testing Receptacles GFCIs AFCIs
  When to Shut Down Equipment
  Touching Electrical Equipment
  Guide to Electrical Test Equipment
  Using DMMs & VOMs Safely
  VOLTAGE DETECTION & MEASUREMENT
  General Electrical Safety Suggestions
  Electrical Inspection Client Safety
SE CABLE SIZES vs AMPS
SQUARE-D RECALLS

UNDERGROUND SERVICE LATERALS

VOLTS / AMPS MEASUREMENT EQUIP

WIND ENERGY SYSTEMS
WIND TURBINES & LIGHTNING

ZINSCO SYLVANIA ELECTRICAL PANELS

More Information

LARGER IMAGE Client Safety Procedures for Electrical Inspectors & Home Inspectors
     

  • Advice for home inspectors on protecting clients during the electrical inspection
    • Distractions are safety hazards especially at the electrical panel
    • Client sticks finger in fuse socket while reaching over inspector's shoulder
    • How to inform building occupants or owners of unsafe conditions
    • How to handle immediate life-safety threats during a building or home inspection
    • How to improve the safety of bystanders during an electrical inspection
    • Client and Building Owner Follow-up on electrical safety issues
  • Questions & Answers about how to protect bystanders during an electrical system inspection in a building
  • References

Click to Show or Hide Related Topics

  • ELECTRICAL INSPECTION, DIAGNOSIS, REPAIR - home
  • AFCIs ARC FAULT CIRCUIT INTERRUPTERS
  • ALUMINUM WIRING HAZARDS & REPAIRS
  • AMPS MEASUREMENT METHODS
  • AMPS VOLTS DETERMINATION
  • BACKUP ELECTRICAL GENERATORS
  • CIRCUIT BREAKER SIZE for A/C or HEAT PUMP
  • CONDUIT, ELECTRICAL
  • CORROSION in ELECTRICAL PANELS
  • DEFINITIONS of ELECTRICAL TERMS
  • DIRECTORY OF ELECTRICIANS
  • DMM Digital Multimeter, HOW TO USE
  • DMM & VOM SAFETY
  • ELECTRIC HEAT
  • ELECTRIC METERS & METER BASES
  • ELECTRIC MOTOR DIAGNOSTIC GUIDE
  • ELECTRIC MOTOR OVERLOAD RESET
  • ELECTRIC PANEL AMPACITY
  • ELECTRIC PANEL INSPECTION
  • ELECTRICAL BASICS
  • Electrical Code Basics
  • ELECTRICAL OUTLET, HOW TO ADD & WIRE
  • ELECTRICAL SPLICES, how to make
  • ELECTRICAL TOOLS BASIC
  • ELECTRICAL WIRING COLOR CODES
  • ELECTRICAL WIRING BOOKS
  • ELECTRICAL DISTRIBUTION PANELS
  • EMF RF FIELD & FREQUENCY DEFINITIONS
  • FEDERAL PACIFIC FPE HAZARDS
  • GFCI PROTECTION,Testing GFCIs AFCIs
  • GROUND SYSTEM INSPECTION
  • GROUND SYSTEM REQUIREMENTS
  • KNOB & TUBE WIRING
  • LIGHTING, EXTERIOR GUIDE
  • LIGHTING, INTERIOR GUIDE
  • LIGHTNING PROTECTION SYSTEMS
  • LOW VOLTAGE BUILDING WIRING
  • LOW VOLTAGE TRANSFORMER TEST
  • MAIN DISCONNECT
  • MULTI-WIRE CIRCUITS
  • MURRAY SIEMENS Recall
  • OLD HOUSE ELECTRICAL WIRING
  • PHOTOVOLTAIC POWER SYSTEMS
  • PUSHMATIC - BULLDOG PANELS
  • SAFETY for ELECTRICAL INSPECTORS
  • SERVICE AMPACITY
  • SERVICE DROP
  • SERVICE ENTRY WIRING
  • SE CABLE SIZES vs AMPS
  • SIEMENS MURRAY Recall
  • SQUARE-D RECALLS
  • TEST EQUIPMENT, ELECTRICAL
  • THERMISTORS
  • VOLTAGE DETECTION & MEASUREMENT
  • UNDERGROUND SERVICE LATERALS
  • VOLTS / AMPS MEASUREMENT EQUIP
  • WIND ENERGY SYSTEMS
  • WIND TURBINES & LIGHTNING
  • ZINSCO SYLVANIA ELECTRICAL PANELS
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

This article discusses suggests safety procedures to reduce the chances of injury to or from a client during an electrical inspection.

Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman.

How to Protect People From Injury During Inspection of an Electrical Panel

In our photograph at page top a young client shows unsafe electrical wiring - lamp cord that has been run through the building wall cavity. Would we permit him to handle this wiring? Did we let him get too close to make this photograph?

ASHI Home Inspector Educational Seminar Proceedings: ASHI-NE Chapter Annual conference
September 22-23, 2008, Randolph, MA. -- Daniel Friedman. This is the full text version. A powerpoint presentation version of this class is also available. Original text - Daniel Friedman, as ASHI Technical Journal Staff, January 1992,updates February 2006, September 2008. This is the full text version. A powerpoint presentation version of this class is also available. Readers of this article should also see these other building inspection safety articles:  Safety for Building Inspectors and  Septic Inspection Safety and also STAIRS, RAILINGS, LANDINGS, RAMPS - INSPECTIONS, CODES

These electrical inspection suggestions are not a complete inventory of all electrical safety procedures nor 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. Contact Us by email to suggest changes, corrections, and additions to this material.

Earlier we discussed this topic in detail and offered some strategies in positioning the inspector and client, making sure only one person handles the electrical panel, and other measures. See Electrical Panel Interior Inspection for these details.

Electrical Inspection Follow up and Client Safety

Since the Standards of Practice for home inspectors (such as those published by ASHI, NAHI, CREIA, and CAHI) require home inspectors to open electric panels, a task not performed in many states during some other types of inspections, we and our clients face additional risks.

In a much less serious incident, the author had the personal experience of having a client ask "What's that?" as he reached over our shoulder to stick his finger right into an open fuse socket.

Among many reports of fires and accidents whose origin was suspected to be electrical, are reported deaths of a number of electricians and electrical workers - people working in some of the same high-risk areas examined by inspectors.

A home inspector or electrical inspector who has reported a very unsafe condition, recommended immediate action, and yet may later learn that occupants of the building were nearly killed by work by an incompetent repairman. [NOTE: Port Jervis, NY, AHS Ctl#4658911, 7/10/90.] What can be done to reduce the chance of this terrible consequence?

Recommending action on an unsafe condition can convert a pre-existing problem into an immediate catastrophe if the client or owner calls an untrained person to the property or if he attempts a do-it-yourself repair.

Often a referral to local fire inspector, electrical inspector, or utility company can help assure that repairs are prompt, proper, and safe. If you recommend immediate action for an unsafe condition, where possible you should provide some means for the client or building owner to assure that the action which is taken is proper and safe.

Inspectors are properly nervous and reluctant to prescribe the actual repair that is needed at a property - they may not know the detailed repair procedure, or there may be alternative repairs, or their description may prompt an un-trained person to try to do the work.

The Building Owner or Building Manager Needs to Know About Unsafe Conditions that Need Immediate Action

  • What kind of trades person, utility worker, or other technician is proper to perform the necessary repair?
  • What steps should be taken by the building owner or manager to assure that the repair is proper and safe?
  • Is there an independent follow-up authority such as a fire inspector, utility company representative, or building code compliance inspector who should examine the repair?
  • Are there well-known and common foul-ups in repair, or local inept repair companies against whom the owner should be warned?

The inspector should inform the appropriate parties both orally and in writing any suspected unsafe conditions.

If an area or component could not be fully inspected, the inspector should explain in writing why she or he did not enter or examine an area or component, and what additional inspections or steps should be taken, as well as the general risks that may be present.

Handling Immediate Threats to Life and Safety at a Building Inspection

If in the inspector's judgment equipment is an immediate threat to life and property, such as a boiler whose flue connection has fallen off, we recommend that dangerous equipment be shut down and the appropriate people notified. See Shutting Down Unsafe Equipment. In some cases "appropriate people" includes not only the client and building owner, but also building occupants.

In some instances such as sparking electrical panels, gas leaks, or evidence of a fire, the inspector and everyone else should leave the building immediately and from outside, call the fire department and as appropriate, the gas company, police, or rescue personnel.

General Electrical Safety Suggestions describes important basic safety procedures, clothing, and equipment for home inspectors and electrical inspectors.


Frequently Asked Questions (FAQs)

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Questions & answers or comments about how to decide when to turn off electrical systems or equipment for safety reasons.

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Technical Reviewers & References

Related Topics, found near the top of this page suggest articles closely related to this one.

  • Electrical shock injury statistics: www.healthatoz.com - September 2008;
  • Mark Cramer Inspection Services Mark Cramer, Tampa Florida, Mr. Cramer is a past president of ASHI, the American Society of Home Inspectors and is a Florida home inspector and home inspection educator. Mr. Cramer serves on the ASHI Home Inspection Standards. Contact Mark Cramer at: 727-595-4211 mark@BestTampaInspector.com
  • John Cranor is an ASHI member and a home inspector (The House Whisperer) is located in Glen Allen, VA 23060. He is also a contributor to InspectApedia.com in several technical areas such as plumbing and appliances (dryer vents). Contact Mr. Cranor at 804-747-7747 or by Email: johncranor@verizon.net
  • Carson, Dunlop &
Associates Ltd., TorontoCarson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. (416) 964-9415 1-800-268-7070 info@carsondunlop.com. The firm provides professional home inspection services & home inspection education & publications. Alan Carson is a past president of ASHI, the American Society of Home Inspectors. Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The Home Reference Book & illustrations from The Illustrated Home. Carson Dunlop Associates' provides:
    • Commercial Building Inspection Courses - protocol ASTM Standard E 2018-08 for Property Condition Assessments
    • Home Inspection Education Courses including home study & live classes at eleven colleges & universities.
    • Home Inspection Education Home Study Courses - ASHI@Home Training 10-course program.
      Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on these courses: Enter INSPECTAHITP in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
    • The Home Reference Book, a reference & inspection report product for building owners & inspectors.
      Special Offer: For a 10% discount on any number of copies of the Home Reference Book purchased as a single order. Enter INSPECTAHRB in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
    • The Home Reference eBook, an electronic version for PCs, the iPad, iPhone, & Android smart phones.
      Special Offer: For a 5% discount on any number of copies of the Home Reference eBook purchased as a single order. Enter inspectaehrb in the order payment page "Promo/Redemption" space.
    • The Illustrated Home illustrates construction details and building components, a reference for owners & inspectors.
      Special Offer: For a 5% discount on any number of copies of the Illustrated Home purchased as a single order Enter INSPECTAILL in the order payment page "Promo/Redemption" space.
    • The Horizon Software System manages business operations,scheduling, & inspection report writing using Carson Dunlop's knowledge base & color images. The Horizon system runs on always-available cloud-based software for office computers, laptops, tablets, iPad, Android, & other smartphones.
  • "Frequency of Occurrence and Sources of Rust and Corrosion in Electrical Panels," Daniel Friedman, IEEE HOLM Conference, Philadelphia PA, 1992 - see ELECTRIC PANEL RUST for an online version of this article.
  • Jim Simmons: Personal communication, J. Simmons to Daniel Friedman, 9/19/2008. Photographs contributed to this website by Jim P. Simmons, Licensed Electrician, 360-705-4225 Mr. Electric, Licensed Master Electrician, Olympia, Washington Contact Jim P. Simmons, Licensed Master Electrician, Mr. Electric, 1320 Dayton Street SE
    Olympia, WA 98501, Ph 360-705-4225, Fx 360-705-0130 mrelectricwa@gmail.com
  • Kenneth Kruger: Original author of the sidebar on testing VOM DMM condition: Kenneth Kruger, R.A., P.E. AIA ASCE, is an ASHI Member and ASHI Director in Cambridge, MA. He provided basis for this article penned by DJ Friedman.
  • "How to Use DMM's Safely," Leonard Ogden, CEE News, 888 Seventh Ave., New York, NY 10106, Dec 1990 p.10.
  • Dr. Jess Aronstein, consulting engineer, Poughkeepsie NY, 1991 protune@aol.com
  • Rex Cauldwell, master electrician and contributor to the Journal of Light Construction on electrical topics
  • New York State Central Hudson Gas and Electric Company, G&E/1-2/85 consumer safety pamphlet
  • American Society of Home Inspectors, ASHI Training Manual, Al Alk -[obsolete, and includes unsafe practices-DF]

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

  • Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
  • Home Reference Book - Carson DunlopThe Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume. Special Offer: For a 10% discount on any number of copies of the Home Reference Book purchased as a single order. Enter INSPECTAHRB in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.

    Or choose the The Home Reference eBook for PCs, Macs, Kindle, iPad, iPhone, or Android Smart Phones. Special Offer: For a 5% discount on any number of copies of the Home Reference eBook purchased as a single order. Enter INSPECTAEHRB in the order payment page "Promo/Redemption" space.

  • GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.
  • GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.
  • GO TO Carson Dunlop's Home Study Course Information - How to Become a Home Inspector: Carson Dunlop's nationally recognized Home Study Course, selected by ASHI the American Society of Home Inspectors and other professionals and associations. This website author is a contributor to this course.
    Building inspection education & report writing systems from Carson, Dunlop & Associates Ltd
  • Recommended books on electrical inspection, electrical wiring, electrical problem diagnosis, and electrical repair can be found in the Electrical Books section of the InspectAPedia Bookstore. (courtesy of Amazon.com)
  • Rust and Corrosion in Electrical Panels, A Study and Report on Frequency and Cause for Electrical and Home Inspectors at Residential Electric Panels
  • "Electrical System Inspection Basics," Richard C. Wolcott, ASHI 8th Annual Education Conference, Boston 1985.
  • "Simplified Electrical Wiring," Sears, Roebuck and Co., 15705 (F5428) Rev. 4-77 1977 [Lots of sketches of older-type service panels.]
  • "How to plan and install electric wiring for homes, farms, garages, shops," Montgomery Ward Co., 83-850.
  • "Simplified Electrical Wiring," Sears, Roebuck and Co., 15705 (F5428) Rev. 4-77 1977 [Lots of sketches of older-type service panels.]
  • "Home Wiring Inspection," Roswell W. Ard, Rodale's New Shelter, July/August, 1985 p. 35-40.
  • "Evaluating Wiring in Older Minnesota Homes," Agricultural Extension Service, University of Minnesota, St. Paul, Minnesota 55108.
  • "Electrical Systems," A Training Manual for Home Inspectors, Alfred L. Alk, American Society of Home Inspectors (ASHI), 1987, available from ASHI. [DF NOTE: I do NOT recommend this obsolete publication, though it was cited in the original Journal article as it contains unsafe inaccuracies]
  • "Basic Housing Inspection," US DHEW, S352.75 U48, p.144, out of print, but is available in most state libraries.
  • ...

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