-
A distribution box is a type of equipment used to install switches and meters, and its more common classifications are as follows:
The first is a fixed panel switchgear with a relatively low protection level, because it only has a panel on the front to shield, and the back and side can directly contact the live part, so it can only be used in some industrial and mining enterprises with low requirements for the reliability and continuity of power supply;
The second type is a switchgear designed as a drawer, so named because its electrical components are installed in a drawer that can be pulled. The reliability and safety performance of drawer switchgear are relatively good, and it is widely used in high-rise buildings with high power supply reliability requirements.
The third is a closed switchgear, which is generally used in the process site; The fourth is the distribution control box with lighting and power, which is mainly used in the production site of industrial and mining enterprises.
According to the strong and weak current distribution box, the distribution box can be divided into: strong current distribution box and weak current distribution box.
The strong current box can be divided into: high-voltage cabinet and low-voltage cabinet (generally divided into: 380V and 220V).
Weak current box can be divided into (generally safety voltage, below 42V): fire weak current box, broadcast and multi-** distribution box.
It can be divided into (there is also the difference between outdoor and indoor installation, and defensive cloaks or measures need to be added outdoors) according to the installation method: floor-mounted, wall-mounted, embedded, etc.
-
There are models of distribution boxes, and different manufacturers have their own models.
Domestic models have MLS, GCS, GCKGGD, etc., foreign manufacturers have MD190, MNS, ARTU, Blokset, 8PT, etc., and the general standard model is GB7251 1.
1. P open low-voltage switchgear, G closed low-voltage switchgear second position: G fixed dead, C extraction type, H fixed, extraction mixed type.
2. L (or D) for power, K for control, S Senyuan electrical system.
3. GGD is cheaper, GCS and GCK are economical.
4. GCK, GCS, MNS are low-voltage withdrawable switchgears.
5. GGD, GDH, PGL are low-voltage fixed switchgears.
-
1. The general distribution box, the size specification is in the 60 power box suspended distribution box, there are two types of power and lighting, the size is 80 floor distribution box, which is a distribution box installed on the floor, the size is 60 wall-mounted distribution box, that is, the embedded distribution box, the common size is 20 30cm, 40 household lighting distribution box, which is used in home power control, the common size is 38 36cm, 40 outdoor waterproof distribution box, which is installed indoors, the waterproof performance is relatively good, and the common size is 40 18cm。
-
Generally, different manufacturers have their own models.
1. From the model point of view, the difference is that the domestic models have MLS, GCS, GCK GGD; Foreign manufacturers have MD190, MNS, ARTU, BLOKSET, 8PT, and the general standard model is.
2. From the top of the world, GGD is cheaper, and GCS and GCK are economical;
3. From the switchgear manufacturer, GCK, GCS, MNS are low-voltage withdrawable switchgears, and GGD, GDH, PGL are low-voltage fixed rough switchgears; In the type of rock culture, XZW integrated distribution box, ZBW box-type substation.
4. From the perspective of voltage, high-voltage cabinets are generally divided into 380V and low-voltage cabinets are 220V;
5. From the perspective of installation methods, the installation methods are divided into floor-mounted, wall-mounted, embedded, etc.
-
I believe that everyone will be familiar with the household distribution box, which plays a very important role in our lives. With the rapid development of the times, a variety of distribution box models and specifications have appeared on the market. Today, I will take you to take a look at the poor ridge household distribution box, the model and specification of the household distribution box, and how to connect the wiring of the distribution box!
1. Household distribution box.
The distribution box is to assemble switchgear, measuring instruments, protective appliances and auxiliary equipment in a closed or semi-enclosed metal cabinet or on a screen according to the requirements of electrical wiring, constituting a low-voltage power distribution device.
Second, the model of household distribution box.
There are many models of distribution cabinets, such as MLS, GCS, GCK, GGD, MD190, and so on. The general standard model is:
3. Dimensions and specifications of household distribution boxes.
1. The size of the single-phase six-meter camera obscura (width x height x thickness) is 860x840x170, the size of the embedded wall (width x height x thickness) is 790x750x110, the hole (width x height x thickness) is 810x770x120, and the bottom of the hole is 1100 from the ground.
2. The size of the single-phase four-meter camera obscura (width x height x thickness) is 610x840x170, the size of the embedded wall (width x height x thickness) is 550x750x110, the hole (width x height x thickness) is 570x770x120, and the bottom of the hole is 1100 from the ground.
3. The size of the single-phase three-meter camera obscura (width x height x thickness) is 850x550x170, the size of the embedded wall (width x height x thickness) is 790x490x110, the hole (width x height x thickness) is 810x510x120, and the bottom of the hole is 1400 from the ground.
4. The size of the single-phase two-meter camera obscura (width x height x thickness) is 610x550x170, the size of the embedded wall (width x height x thickness) is 550x490x110, the hole (width x height x thickness) is 570x510x120, and the bottom of the hole is 1400 from the ground.
Fourth, how to connect the wiring of the distribution box.
We want to choose the home line, the home line must pay attention to the general family use of the fire wire specifications is red, six square copper core wire, the zero line is blue, six square copper core wire, the ground wire is generally two-color wire or pure yellow line, also six square; The connection between the fire wire and the zero line between the air opening is parallel, the dial wire is moderate, and the pressing line should be tight and reliable, and there can be no loose ignition; Air conditioning, sockets, lighting, and wiring should be distinguished, and the general air conditioner uses 4 square solid copper core wires, and the sockets are distinguished, and the bedroom, kitchen, and hall are all the way, and the square solid copper core wire can be used; The line is finished is the choice of air opening, the air conditioning of the air conditioning is larger, generally 16-20A can be, the lighting circuit is generally used ten A, it is not recommended to use too large, so the air opening can not achieve the effect of protection; After the connection is completed, it is necessary to mark the meter box and mark which empty corresponding socket or lighting room, so that it can also be convenient for maintenance.
It's always been you talking about your own feelings If you guess correctly, you're a crush You should be more cautious in this situation You take every step well You are likely If you take a wrong step, you may be finished I'll give you a suggestion Start with friends Don't confess that it's too reckless In case people don't mean that, you'll be embarrassed in the future, right? Look down and don't look up You think about the difference between you and you now after you establish a relationship You are already very lucky to meet with the person you like every day I suggest that you know how to be satisfied and cherish how you feel now Get in touch with him a lot, don't be restrained or ambiguous, let a normal relationship develop normally, such as eating together at noon, going to the library together, you can control this yourself, let your relationship slowly take root, and when there is the best time, use the best way, it's not too late to confess to her, don't test people, it's boring, do as I say, you must be possible.
Dragon film belongs to the high-end grade. >>>More
At the moment there is only one Varyag. J-15 carrier-based aircraft will be used.
The model number is not very clear.
If you want to talk about ***, Giti is not bad, I just use this, which is cheap and wear-resistant. >>>More
Ah, it seems that there is no difference.