Always On Call, Always The Right Call
 
Call H & N Plumbing, Heating, & Electrical, Inc. for reliable Furnace replacement in Fennimore WI.
 
Serving Southwest Wisconsin
 
H & N Plumbing, Heating, & Electrical, Inc. has certified technicians to take care of your Furnace installation near Boscobel WI.
 

The Importance of GFCI

Ground-Fault Circuit Interrupters (GFCI)

A ground-fault occurs when there is a break in the low-resistance grounding path from a tool or electrical system. The electrical current may then take an alternative path to the ground through the user, resulting in serious injuries or death. The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault within as little as 1/40 of a second. It works by comparing the amount of current going to and returning from equipment along the circuit conductors. When the amount going differs from the amount returning by approximately 5 milliamperes, the GFCI interrupts the current.

The GFCI is rated to trip quickly enough to prevent an electrical incident. If it is properly installed and maintained, this will happen as soon as the faulty tool is plugged in. If the grounding conductor is not intact or of low-impedance, the GFCI may not trip until a person provides a path. In this case, the person will receive a shock, but the GFCI should trip so quickly that the shock will not be harmful.

The GFCI will not protect you from line contact hazards (i.e. a person holding two "hot" wires, a hot and a neutral wire in each hand, or contacting an overhead power line). However, it protects against the most common form of electrical shock hazard, the ground-fault. It also protects against fires, overheating, and destruction of wire insulation.

For construction applications, there are several types of GFCIs available, with some variations:

  • Receptacle Type GFCIReceptacle Type

    The Receptacle Type incorporates a GFCI device within one or more receptacle outlets. Such devices are becoming popular because of their low cost.

  • Portable Type GFCIPortable Type

    Portable Type GFCIs come in several styles, all designed for easy transport. Some are designed to plug into existing non-GFCI outlets, or connect with a cord and plug arrangement. The portable type also incorporates a no-voltage release device that will disconnect power to the outlets if any supply conductor is open. Units approved for outdoor use will be in enclosures suitable for the environment. If exposed to rain, they must be listed as waterproof.

  • Cord-Connected GFCICord-Connected Type

    The Cord-Connected Type of GFCI is an attachment plug incorporating the GFCI module. It protects the cord and any equipment attached to the cord. The attachment plug has a non-standard appearance with test and reset buttons. Like the portable type, it incorporates a no-voltage release device that will disconnect power to the load if any supply conductor is open.


Because GFCIs are so complex, they require testing on a regular basis. Test permanently wired devices monthly, and portable-type GFCIs before each use. All GFCIs have a built-in test circuit, with test and reset buttons, that triggers an artificial ground-fault to verify protection. Ground-fault protection, such as GFCIs provide, is required by OSHA in addition to (not as a substitute for) general grounding requirements.


Source: U.S. Dept. of Labor Office of Safety & Health Administration

24 Hour Emergency Service • Call Us Today • (888) 822-3258 • or • Schedule Service online
24 Hour Emergency Service
(888) 822-3258
Schedule Service online
 
 
Contact Info
 
Address:  1325 Seventh St
Fennimore, WI 53809
Toll Free:  (888) 822-3258

 
For Furnace repair in Fennimore WI, like us on Facebook!
For Furnace repair in Boscobel WI, visit us on Google!
Read what your neighbors say about the Furnace repair or installation we performed near Fennimore WI on Yelp!
To schedule your Furnace installation in Lancaster WI, just email us!
Looking for Furnace repair service in Boscobel WI? - Check out our YouTube channel.
 
 
Payment Options
 
For Furnace in Fennimore WI, we accept most major credit cards.
 
We accept check for Furnace repair service provided in Boscobel WI.
We accept cash for Electrical repair service provided in Lancaster WI.
 
Apply for Financing
Send us a Message
 
Business Hours
 
Monday:  7:00am - 5:00pm
Tuesday:  7:00am - 5:00pm
Wednesday:  7:00am - 5:00pm
Thursday:  7:00am - 5:00pm
Friday:  7:00am - 5:00pm
Monday - Friday:  7:00am - 5:00pm
CALL US ANYTIME, DAY OR NIGHT. YOU WILL SPEAK TO A REAL PERSON, NOT AN ANSWERING MACHINE.
Schedule an Appointment
Home   |   Email Us   |   Schedule Service   |   Get a Quote   |   Maintenance   |   Guarantees   |   Employment   |   Tax Credits   |   Search Site
Home   |   Email Us   |   Schedule Service
Get a Quote   |   Maintenance   |   Guarantees
Employment   |   Tax Credits   |   Search Site
Google Map of H & N Plumbing, Heating, & Electrical, Inc.
Click to view full map