42 votes
Accepted

How do I connect a 4 prong cord on my GE dryer which is currently connected with a 3 prong cord?

Remove that brass jumper, connect white to the middle terminal, red and black to the one each of the two end terminals and green to the ground screw.
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  • 13.2k
37 votes
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How do I fix a broken power cord

Since the damage is at the end of the cord, you can just cut off the chewed part, replace the plug, and lose a few inches of cord length. There is an endless selection of replacement plug styles at ...
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  • 5,816
37 votes

Why are these receptacles so difficult to plug into?

They are tamper resistant, as indicated by the letters "TR" stamped between the holes. The secret is to insert the plug squarely into the receptacle. The two little doors inside have to be pushed at ...
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  • 6,096
35 votes
Accepted

Can I safely plug a two prong plug into an extension cord with a ground socket?

Yes you can safely plug the appliance into a 3-wire cord and plug set, as long as that is the factory installed cord and plug on the router. Appliances that are double insulated do not require an ...
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  • 33.4k
34 votes
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Mysterious cord running from wall. Safe?

That is a wired telephone junction block. The wire coming through the wall may very well be where the original land line entered the house from outside. The other wire is probably going off to some ...
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  • 61.3k
28 votes

Is this cord bend ok on electric range?

I'm not certain what guage that wire is but many manufacturers will cite a minimum bend radius. It may or may not be code compliance wherever you are in the world. I suspect that wire has a minimum ...
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  • 8,603
28 votes
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Can I still use a burnt plug?

It should be replaced. Electrically it will work but mechanically the sharp edges exposed by the burnt off plastic insulation could damage the new socket. Also the missing insulation makes it less ...
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  • 13.2k
23 votes

Can I still use a burnt plug?

Replace both the plug and the socket and don't use either until they're repaired properly. If you choose to use this burnt plug in a different socket, the carbonising will add resistance to the ...
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  • 6,961
22 votes

What are the dimensions of US outlet holes?

Let me introduce you to the wonderful world of Google Image search: nema 5-15 dimensions It's a great way to find drawings and other visual information. Here's a drawing pulled from the search ...
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  • 26.6k
22 votes

How do I connect a 4 prong cord on my GE dryer which is currently connected with a 3 prong cord?

The jumper from neutral to ground is exactly what makes a 3-prong cord so dangerous. The jumper gets removed. The neutral wire lands on the insulated terminal (that was vacated) and the ground lands ...
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19 votes

Can I safely plug a two prong plug into an extension cord with a ground socket?

If the power cord on the router is one of the modern type like this ... Picture Source ... with one blade wider than the other then you have a polarized plug with the neutral routed through that ...
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  • 61.3k
17 votes
Accepted

How to use the ground wire in 2 prong plugs

That cord is meant to plug into a Japanese outlet. In Japan, it's common to have two-prong sockets with a separate grounding screw below for devices that need it. The outlet it was desinged to plug ...
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  • 6,239
16 votes
Accepted

Is it okay to regularly turn off lamps (2) via a power strip rather than their individual switches?

In most cases, simple switches are equivalent. They break the circuit and do nothing else. So switching (breaking the circuit) further down the line is usually fine. There are some exceptions, such ...
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  • 33.1k
14 votes
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How to determine the polarity of a lamp?

The shell of the bulb socket (i.e. the part with the threads on it) should be neutral. There are many ways it's possible for you to be on contact with the shell: while handling a fixture, i.e. to ...
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12 votes

Is Ground plug replacement necessary?

The ground prong is important. If a failure occurs that connects the hot to the parts of the vacuum that are supposed to be grounded, a functional ground prong means the circuit breaker trips. Lack of ...
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  • 134k
12 votes

How do I connect a 4 prong cord on my GE dryer which is currently connected with a 3 prong cord?

Thank you for the photoshopped connection picture. Very impressive and helpful! Based on that information and illustrations I got here I ended up with what you see in the picture. I moved the ground ...
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  • 729
12 votes

Can I still use a burnt plug?

REPLACE IT. <- that is all the answer should require....and you probably already suspected that.
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  • 61.3k
12 votes

Can I change the plug on this 240 V device?

You MUST change the plug The plug, as provided on the new-to-you equipment, is a "NEMA 10-30" type. It is obsolete and dangerous, and does not contain a ground wire. (That wire is neutral). ...
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11 votes

Why are these receptacles so difficult to plug into?

Well, you are the owner of a newer type of tamper resistant outlet. It's great to have a safe home, but I have been asked to remove these, as in other newer code required devices that cause problems, ...
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  • 95.8k
10 votes

Can I change the plug on this 240 V device?

The two factors for circuit size are the Installation and Operating Instructions which are part of the UL/TUV Listing, and the Electrical Code, which defers and specifies that the Listing must be ...
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9 votes
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Removing a keystone jack from the wall plate

Yes. It is possible. Keystone jacks almost always have two angled ledges. One stationary upon which the keystone pivots (Red below), and the other spring loaded which 'snaps' into place (Green ...
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9 votes
Accepted

What is this weird plug?

It looks like an NF C 61-315 standard French single phase plug: These are are rated for 400V, 32A on a single phase. The socket you have pictured looks like a French style Schuko (CEE 7/3), which is ...
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  • 6,825
9 votes

Is there a way to get hot water without altering plumbing or electrical wiring too much?

Check out the 1 or 2 gallon point of use heaters that install under the sink. They run on 120VAC and are fairly easy to install with minimal plumbing changes. There are also above sink mounted hot ...
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8 votes
Accepted

Should I replace ALL the fuses in plugs?

Originally, in the UK after BS1363 was introduced, there were 1, 2, 3, 5, 7, 10, and 13A fuses but nowadays mostly 3,5 and 13 are used/available. The plug fuse is to protect the wire between plug and ...
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8 votes

Mysterious cord running from wall. Safe?

A few things to add to the other answer It was probably an older 4-pin jack that went there. This was the forerunner for the modern (and considerably more compact) RJ-11 jack you would recognize. ...
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8 votes
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Cable With Same Plug And Slot (RJ11), What's The Purpose?

That looks like a DSL filter. DSL "piggybacks" on a regular voice line. The DSL modem will automatically block out voice frequencies. DSL filters are used on all connections EXCEPT the DSL modem to ...
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8 votes
Accepted

Repair frayed electrical wire with strain-relief stopper

Well, it's hard to tell. That part is called a "strain relief" but in these types of mass produced products, it's often molded onto the cord when manufactured. Unless the manufacturer sells a ...
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  • 2,432
8 votes

How to use the ground wire in 2 prong plugs

That type of wire, along with the tab on 3:2 "cheater plug" adapters, is intended to go under the face plate screw at the center of the outlet. That screw makes a connection with the outlet ...
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  • 104k
7 votes

2-prong cord but 3-prong outlet

As already pointed out, yes you can. But maybe understanding the why will help: From this article, "https://electronics.howstuffworks.com/everyday-tech/question110.htm" "The idea behind grounding is ...
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  • 1,001
7 votes
Accepted

Can a standard NEMA 5-15 outlet be installed in a round ceiling box?

They do make receptacles designed to fit round boxes, for example a Leviton 1228 (I'm sure other brands have it as well, this was just the first I found when I googled Round Box Receptacle): ...
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  • 4,772

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