- Can I disassemble?
- What are the non-separable forks?
- How is the folding fork?
- How does the fork fit?
- Let's talk about faults
- What happened to the collapsible fork?
- How do I change the plug?
- Three strands
- How to build a wire?
Modern man can not do without electrical appliances. Computer, refrigerator, washing machine, coffee maker, iron - all and do not list. Some devices run on batteries, but most are still connected to the network. So - they have a cord and plug that plugs into the outlet. In order for the devices to last a long time, the electrical connection system must be in order. But it is not always possible to contact the workshop if the pin is fused or the screw is unscrewed. How to repair the plug? This we will discuss in our article.
to the contents ↑Can I make out?
Before fixing the plug for the socket, it is necessary to understand whether it is being disassembled or not.
Important! Of course, it is not possible to repair the indiscriminate, it must be replaced immediately, sometimes along with the cord.
Collapsible forks are of several types. Unfortunately, there is no single global standard for such devices, and this causes a lot of problems. For example, you bought the device abroad, try to turn it on, and the pins are not included, because the distance between them is more or less than the one on which the holes at the outlet are located. Or there is an additional rod of incomprehensible shape, which can not be inserted.
You can use the adapter, but most often in such cases the fork is removed:
- is unscrewed;
- is clipped.
To repair an electrical plug in this situation, replace the old one with a new one that fits exactly to your outlet. At the operation of the device, this operation usually does not affect in any way.
to the contents ↑What are the non-separable forks?
Now all devices are manufactured with non-separable forks. However, many users have preserved and collapsible - on older devices, which, despite their age, work fine.
Depending on where the unit is made, you can read on the marking:
- C5;
- C6:
- CEE 7/16;
- CEE 7/17.
Important! Despite the fact that there are four standard types of marking, forks are only two types. In Russia they correspond to GOST 7396.1-89.The first two are Russian, the third and fourth are European. In this case, plug C5 corresponds to CEE 7/16, and C6 - CEE 7/17.
What else is on the label?
On the plug housing you can find other data:
- maximum permissible current;
- the maximum permissible voltage.
The first value means that the appliance will operate from the mains, where the current is less than or equal to the specified value. The same applies to the voltage - if it is more, the device may burn out.
C5 and CEE 7/16
These are plugs with round pins. The diameter of the rods is 0.4 cm. The distance between the pins at the ends is slightly larger than near the bases. The rods are 1 cm from the body. There are no grounding contacts for such plugs. The calculated current strength is 6 A, the power of the device is 1200-1300 W.
C6 and CEE 7/17
The pins of these plugs are also round, but their diameter is more - 0.48 cm. Some models have a grounding contact, others do not. This device can withstand current strength of 10 A and is designed for a power of 2200 watts.
Important! Demountable plugs withstand current up to 6 A and power 1300 W.They can be either grounded or not.
to the table of contents ↑How is the folding fork built-in?
If you have a question how to make a plug for the outlet, try to understand first: what exactly can be repaired? All non-assembled plugs are similar:
- they have pins;
- pins are installed in the bar;
- the distance between the rods is 1.9 cm;
- conductors are pressed into rods;
- on the bar there are 2 protrusions for the bypass, which are made so that the cord does not break;
- rods along with the wire are filled with molten plastic.
Important! The non-separable plug has its advantages:
- tightness;
- Durable fixation of pins.
Inside does not get moisture, so this plug has much less chance of burning out or electric shock. The pins do not fall out, and this also increases safety. The disadvantage of such a device is only one - if it is burnt, there is nothing to disassemble, it is necessary to change entirely.
to the contents ↑How is the folding fork arranged?
A demountable plug is very useful, if it is necessary to replace the non-separable plug, but you do not want to change the cord or even throw out the appliance. You can still buy this in the electronics store. In addition, it can be removed from an old desk lamp or a broken old refrigerator.
The device of the collapsible fork without grounding is quite simple. It has:
- 2 halves of the body;
- 2 rod( usually brass);
- clamping plate;
- fasteners.
The grounding-type plug has some differences:
- Contact pads are installed on the pins.
- Contact pads have a thread, they are needed to screw the wires.
- In the case there is a grounding contact - a brass strip.
- On the grounding contact there is a thread to screw the conductor.
- The clamping strip is made with a plastic gasket.
Talk about faults
Generally, the cast plugs serve as much as the devices themselves, unless you maliciously violate the rules of operation and safety. To change such plugs it is necessary in the following cases:
- If the factory badly squeezed the conductor in the pin.
- If the cord is worn out at the point where it is connected to the body.
We are looking for the place of damage
Quite often the breakdown can be detected by a simple inspection. There are only two signs:
- The cord abruptly bends.
- The shell is swollen.
Important! If you immediately find the defect did not work, you will have to take a tester in your hands. However, in order to ring the wires, you need to get to their opposite ends. For some devices, this is possible, but not at all.
If you can not detach the wire, you need the most common metal sewing needle, not particularly thick:
- Lightly twist the wire and the plug in opposite directions - this is necessary to prevent accidental contact of the ends of the broken conductor.
- Puncture the insulation wherever one of the conductors passes.
- Call the chain "needle - rod fork".
- If there is no defect on the first conductor, ring the second one.
Checking the phase indicator
This also requires a needle. To check it is necessary very cautiously - in any case, do not touch the needle with an unprotected hand:
- Puncture the insulation.
- Plug the plug into the socket - on the wire that you are checking, there must be a phase. Tap the needle with the phase indicator.
- If the indicator is not lit, there is an open.
- Check the second conductor.
- Remove the plug.
- Pull out the needle.
Important! Holes after you pull out the needle, quickly tighten.
If the wire is OK
It can happen that you do not find a wire break. This means that you need to look for a malfunction somewhere else. Where?
Quite often, the plug does not work if the socket has a bad contact. For example, it almost does not come into contact with contacts. In this case, the process is as follows:
- A lot of heat is allocated.
- The pin is overheating.
- The case is melted or charred.
- The pin starts to swing.
To determine how good contact pin with a socket, do not have to disassemble anything. After the device has worked and you turn it off, simply touch the rods. They should be warm, but not hot. If the temperature is too high, turn on the socket - it must be urgently repaired.
to the contents ↑What happened to the collapsible fork?
How to inspect the device, and most importantly - how to assemble the plug socket, so that there are no unnecessary details left? Well, first, to understand what are the malfunctions. They are the same as for cast forks.
But there is also a specific defect - a bad contact of the cord with the rods or its complete absence. The wires do not fit tightly when there is no spring washer. As a result - a gap is obtained, the contact weakens, and heat - on the contrary, begins to be allocated more intensively. This is especially true for old appliances.
Important! Bad contact can cause the body to melt or even char.
The only repair method is to change the plug.
If the enclosure is intact, the device can be repaired. You will need:
- screwdriver;
- fasteners for replacement with oxidized;
- sandpaper;
- sharp knife:
- sheet of paper;
- the camera.
It is very important for a novice electrician not to lose the details and remember what was the moment when he got out. For this, we need a camera and a sheet of paper( preferably white).It is useful to photograph each operation, and what is pulled from a plug or other device is spread out on a white sheet. Details, however, in this case will be very small:
- Unscrew the screw.
- Divide the enclosure into 2 parts.
- Strip the wire where it connects to the pin, sandpaper.
- If the wire is burnt, trim the damaged piece, peel the ends and connect to the pins.
- Change screws and washers if there is scale on them.
- Connect the body halves.
- Tighten the screw and tighten it.
How to change the plug?
First you need to understand which plug you need. This depends on a number of circumstances:
- power of the device;
- need earthing;
- current in the electrical network.
Usually the best option is to buy the same item as it was. Of course, if the device is not brought from anywhere in very far countries, where manufacturers do not consider it necessary to follow the usual rules.
Next:
- Prepare the cord-cut it 3-5 cm from the fork.
- Remove the insulation for a length of 2 cm.
- Form the rings at the ends of the conductors.
- In the rings, insert the screws, which already have groovers and flat washers.
- Screw the screws in both pins until they stop.
- Place the pins in the body, in special grooves.
- Place the bar on the wire.
- Press the bar to the body with two screws.
- Put a rubber tube on the plug out of the plug( polychlorvinylate is also suitable).
- Connect the body halves.
- Pull them with the screw and nut.
Important! Halves should be close to each other tightly, the gap, if any, must be eliminated by pushing the wires inside the fork.
to the contents ↑Three strands
Some electrical appliances must be earthed. The wire they have three cores. The one that is grounded is usually painted green. The repair itself is done in exactly the same way - it is necessary to cut the insulation, form rings, insert the pins and screw with screws and washers.
Important! If the outlet has a ground and there is no wire, the grounding contact remains free.
to the contents ↑How to build a wire?
Sometimes it has to be done, especially if there is not a collapsible fork at hand, but there is a broken electrical appliance that can cut the right part together with a piece of wire. By the way, this will allow to slightly extend the cord of the device that you are repairing.
Operation:
- Cut the cord with the plug from the broken device - best for the maximum possible length. If the build-up is not expected, it is enough to leave a piece of 15 cm.
- Cut the cords of the cords along by 10 cm, without damaging the insulation.
- Pull out the wires without cutting the shell.
- You will see, most likely, three wires - red( brown), blue( blue) and green: phase, zero and ground.
- Adjust the length of the conductors - the joints should be 2-2.5 cm apart.
- Remove the insulation from each conductor by 1.5 cm. At the same time, if one wire has a green core and the other wire does not, the insulationfrom it it is impossible to remove.
- Connect single-colored wires with twists - three turns are enough.
- Solder the wires.
- Strip the spikes by removing the protrusions and sharp edges.
- Thread the wires into the enclosure.
- For reliability, the wire can be isolated, but this is not necessary if the twists do not touch.
Important! Twists can not be brazed, and put them on thin copper or brass tubing.
In this article we have considered all possible breakages of the plug and cord of different devices, as well as the ways of repairing these parts. Remember that it is necessary to start fixing electrical equipment, even such simple elements, only if you understand the principle of their work and know the precautions.