answersLogoWhite

0


Best Answer

Install an AFCI breaker on the circuit with the outlets you replace and you will be fine.

User Avatar

Wiki User

16y ago

Still curious? Ask our experts.

Chat with our AI personalities

LaoLao
The path is yours to walk; I am only here to hold up a mirror.
Chat with Lao
EzraEzra
Faith is not about having all the answers, but learning to ask the right questions.
Chat with Ezra
TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga

Add your answer:

Earn +20 pts
Q: Can you safely install 3 prong plugs with old knob and tube wiring?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Electrical Engineering

When wiring 4 prong plug for 220 has W X G and Y what goes into the X and Y?

On a 240 volt outlet, such as a dryer outlet: G is Ground, W is Neutral, X and Y are the two Hot legs.


What is a prong part of?

A fork


Should old wiring be replaced?

There is no requirement to replace old wiring unless new changes are being done to an old circuit that does not meet current code, in this case all the old wiring in that circuit must be replaced.It is entirely up to you if you want to replace old wiring or leave it as is (even if it looks unsafe) when no new changes are being made to the old circuit (e.g. you open a wall to do plumbing work and find antique "knob and tube" wiring with insulation problems - you do NOT need to replace any of this old wiring if you did not change its circuit in any way).Many houses in this area have unsafe 2 prong outlets installed in the 1950s that were designed for use interchangeably on 115V 15A and 230V 8A circuits, but their design allows 115V 15A, 115V 20A, or 230V 8A plugs to be inserted without the user knowing they are plugging into an incorrect circuit. But unless something else is changed on a circuit containing these unsafe outlets they may all be left as they are, but every one of these unsafe outlets on the circuit must be replaced with safe 2 prong if anything is changed (3 prong if the circuit is upgraded to 3 wire grounded wiring).About the only thing that could force rewiring the entire building is replacing an old screw in fuse box with a modern breaker box, as this changed to feed end for all circuits.----------------------------------------------------------------------------------------------------------------------------------------------If the wiring has rubber insulation for the conductors you should definitely replace it with modern pvc-based wiring. To protect your electrical outlets and appliances - and also for safety reasons - you should also upgrade the breaker box. If you have old wires which are made of copper that has pvc-based insulation you can leave them as they are but only if they are still in good condition. If the wires are made of aluminum or if they don't look safe - for instance if the insulation is damaged - you should replace them immediately.AnswerOld wiring may be safe if left alone, not overloaded or abused, and was originally "up to code". However, old rubber insulation with cloth coverings can become brittle and literally turn to dust if jiggled. This often occurs in overhead lighting outlets where heat from lights has dried and damaged the insulation. These old installations must be replaced if they are to be touched in any serious way (e.g., undoing clamps or other fasteners), otherwise they become unsafe. In other words, you should not simply pull out the old fixtures and devices and install new ones; you will need new wiring, and if you're getting new wiring, you should (must) get new circuit breakers.You can expect your main electrical panel and meter to last 30 to 40 years before they start to need to be replaced. The wiring in the wall can last a bit longer but when it gets to be 50 to 60 years old you're better off replacing it if you can.AnswerIn the late 1940s a type of cable called "Romex" was introduced in the United States, using PVC insulation for the individual copper conductors with a paper wrap and braided fabric overwrap. It is usually black or silver in color. This type of wiring is still safe today, although early Romex cables didn't contain a third earth ground wire, as required by current electrical codes. Houses with this type of wiring usually have outlets with just two slots, lacking the third hole for 3-prong plugs, although sometimes homeowners have replaced the outlets with the 3-prong type in violation of the National Electric Code (NEC). Current Romex cables have a third copper conductor that connects to earth ground and the outer jacket is molded PVC plastic instead of braided fabric.Take a look at your fuse box or breaker box. If it still contains the old screw-in fuses, chances are that the wiring in the house is outdated and should all be upgraded to modern Romex or "NM" type cable.


What does prong mean?

Prong is a point as the tine of a fork.Edited: each of two or more projecting pointed parts at the end of a fork. pierce or stab with a fork:pronged


Can one convert a two prong outlet to a three prong outlet?

Yes, provided that you have a ground wire in the box and that the ground wire is properly connected in the electric panel.

Related questions

How can I safely upgrade my electrical outlets from 2 prong to 3 prong in my home?

To safely upgrade your electrical outlets from 2 prong to 3 prong in your home, you should hire a licensed electrician to assess your current wiring and install grounded outlets where necessary. This will ensure that the upgrade is done correctly and up to code, reducing the risk of electrical hazards.


How can I safely upgrade a two prong outlet to a three prong outlet in my home?

To safely upgrade a two-prong outlet to a three-prong outlet in your home, you should first turn off the power to the outlet at the circuit breaker. Then, replace the old outlet with a new three-prong outlet, ensuring that the wiring is done correctly and securely. If the wiring in your home is not grounded, you may need to hire a professional electrician to install a ground wire for safety. Remember to always follow proper safety precautions when working with electricity.


How to change 2 prong outlets to 3 prong outlets in a safe and effective manner?

To change 2 prong outlets to 3 prong outlets safely and effectively, you should hire a licensed electrician to upgrade the wiring and install new grounded outlets. This ensures proper grounding and reduces the risk of electrical hazards.


How can I safely convert a 4-prong electrical outlet to a 3-prong outlet?

To safely convert a 4-prong electrical outlet to a 3-prong outlet, you should hire a licensed electrician to ensure proper grounding and wiring adjustments are made in accordance with electrical codes. This is important to prevent electrical hazards and ensure the safety of your home.


How can I safely convert a two-prong outlet to a three-prong outlet?

To safely convert a two-prong outlet to a three-prong outlet, you should hire a licensed electrician to install a ground wire and upgrade the outlet to meet current electrical codes. This ensures proper grounding and reduces the risk of electrical hazards.


Wire connected to the rounded prong in a three prong plug?

The rounded prong in a three-prong plug is the ground prong, typically colored green or black. This prong is connected to the wire that leads to the ground in the electrical system, providing a path for excess electricity to safely dissipate into the ground. It serves as a safety feature to prevent electric shocks and fires.


How can I safely convert a 2 prong outlet to a 3 prong outlet in my home?

To safely convert a 2-prong outlet to a 3-prong outlet in your home, you should hire a licensed electrician to install a ground wire and upgrade the outlet. This ensures proper grounding and reduces the risk of electrical hazards. It is important to follow local building codes and regulations to ensure the safety and compliance of the electrical work.


What would happen if elctrical plugs only had on prong?

If electrical plugs only had one prong, there would be no grounding connection. This could increase the risk of electric shock and electrical fires as the grounding prong is designed to divert excess electrical current safely. Additionally, appliances may not function properly without the necessary grounding for safety and efficiency.


How can I convert a two-prong electrical outlet to a three-prong outlet?

To convert a two-prong electrical outlet to a three-prong outlet, you will need to install a ground wire. This involves running a new wire from the outlet to the grounding system of your home. It is recommended to hire a licensed electrician to ensure the job is done safely and up to code.


How can I safely convert a dryer from a four-prong to a three-prong plug?

To safely convert a dryer from a four-prong to a three-prong plug, you will need to replace the cord with a three-prong cord that matches the outlet in your home. Make sure to follow the manufacturer's instructions and turn off the power before making any changes. If you are unsure, it is recommended to consult a professional electrician for assistance.


How do you install a fisher snowplow four prong solenoid?

No


How can I safely convert a 4 prong dryer cord to a 3 prong cord?

To safely convert a 4-prong dryer cord to a 3-prong cord, you will need to disconnect the old cord and connect the new one following the manufacturer's instructions. Make sure to turn off the power before starting and consult a professional if you are unsure about the process.