What does the electrician control line mean and what does the control line mean?

The so-called control line is the line from the light to the switch, the line is not charged when the switch is disconnected, and the switch is energized. The control line is generally the fire line. Most of today's lamps must be disconnected, otherwise some energy-saving lamps with vibrators will flash when the switch is turned off.

The control line usually refers to the secondary circuit.

of lines or lines of control loops. For example, the circuit that controls the start and stop of the motor can be connected to electrical protection such as short-circuit protection, overload protection, under-voltage protection, and phase loss protection, or access to mechanical limit interlock protection, various instrument interlock protection, etc., as well as high-voltage relay protection.

circuits, etc. The lines used for these circuits are all control lines.

A device and a load are composed of the main line and the control circuit, the main line is the line that connects the power supply and the load, such as the contactor of the motor, and the control line (called the secondary line) is used to "operate the line that the main line is connected and disconnected", which is composed of buttons, travel switches, relays, etc.

Control is to control the start, stop and operation of large equipment through small equipment to meet the process requirements of the equipment, and different equipment has different process requirements. And the line of control is to act as a bridge. I say this can understand no (dear, if there is a solution to your problem, don't forget to be satisfied).

There are circuits that represent various functions, such as main circuits and control circuits, and control circuits are some circuits that play various control functions.

The control line isThe control line is the line of the control loop, which is relative to the main loop. In general production equipment, there is always a main circuit and a control circuit. For example, a motor forward and reverse line, the main circuit is the line through which the large current passes, and the wire cross-section is relatively large, mainly through contactors, thermal relays, etc.

Introduction:

Because there are thousands of colleges and universities in the country every year to admit new students, it is impossible for all colleges and universities to participate in the admission at the same time, in order to complete the admission work in an orderly manner, the colleges and universities of different levels, different types and different sources of students are divided into several batches, and the admission is admitted in batches and phases, which forms the admission batches, and divides the admission control lines of different batches according to the batches.

In-line control is a specific phrase in the electromechanical industry, which refers to a physical control method in electromechanical control, mainly referring to signal generators.

The connection to the signal receiver is made by transmitting it to the object by cable or other action. For example, the bell is pulled by the wire to make it sound, and the oil circuit of some cars is open and off and the flow is controlled.

The speaker wire control is to control the speaker switch and sound volume through the wire, inserting the front sound panel will automatically turn off the rear sound, you can turn off the front detection in the control panel - high-fidelity sound setting program, so that there is sound before and after at the same time.

Sound principle: sound principle: vibrator vibration sound (vibration sound) + paper tympanic horn sound, traditional (ordinary) sound and vibration sound combination of sound, both vibrating sound of vibrating sound and traditional sound of the horn.

The line control is used on small portable electrical appliances such as cd, ***, and walkman, one end is the earphone, and the other end is connected to these portable electrical appliances, but the difference with the headset is that the wire control has a special control board, like a TV remote control, you don't need to directly press the buttons on the body of these small portable electrical appliances such as cd, ***, walkman, etc., and only use it to operate on the control board (it plays a role in simple and convenient operation, such as you are riding a bicycle, You can put your Walkman in the bag on the back, but it is very troublesome if you want to change songs, but if you have a remote line, you can pin the remote control to your chest like a small microphone, so that it is easy to operate).

The speaker has a wire, and there is a knob or other device above the wire, which can adjust the volume, plug in headphones, and other functions. This is called an inline remote, and it's like some headphones have a knob that adjusts the volume. However, the wire control of the speaker is generally relatively large and can be placed next to the mouse.

Answer, support me.

The main reasons are: the wire itself is aging or damaged, resulting in poor insulation; The insulation of electrical appliances is not good, and there is a broken or no grounding wire in your home. Household electricity is all single-phase electricity:

One phase wire (live wire), one neutral wire. There is also a ground wire, which is set by the user. 2. Both wires are electrified, and it is obvious that the zero line is not passable.

Since the zero line is not connected, the zero line is electrified: the phase line electrical appliances are the zero line. Several households are like this, which means that it is not inaccessible in the house.

It should be handled by the power supply department. The switch controls the neutral line of the live wire electricity through the load lamp and then to one end of the switch voltage must be 220V, three wires control two street lights Then there must be a line of fire The other two are on the light, your switch may not be right, it may also be the live wire and the zero line of the entrance line are reversed, and some decorations can often make such mistakes. The upper line is dead and the zero line is live should be the upper three-phase four-wire empty open circuit or the upper three-phase empty open and open circuit and the upper zero line is broken, where the zero line is shared with another circuit, and the circuit is loaded by another circuit, which means that your circuit wiring is messy.

In addition, there are many electricians who are not knowledgeable to install insurance on the shared neutral line of the three-phase four-wire, which is not allowed and should be checked and paid attention to. 1. The reason why the electrostatic electricity is electrocuted by the electric pen 1This is because the voltage obtained by static electricity is relatively high, and it will generate an electric current through the electric pen and transmit it to the human body.

2.It is said that the voltage of electrostatic electricity is very high, and it can generally reach thousands of volts, but the current generated is very small (milliampere level), and the resistance value of the general voltage tester is only below 500V through the safe current, so it can still pass through the current that the human body can feel at a high voltage of several thousand volts (more than 5 milliampere.

Hello, dear, the control line refers to a kind of line used to control the false reed signal in the digital circuit design. In digital circuits, data signals are usually represented by high and low states, and control lines are used to control the transmission and processing of these signals. The control line can control the reading, writing, storage, transmission and processing of signals, and display various functions of digital circuits in real silver.

Common control lines include clock lines, enable lines, reset lines, interrupt lines, etc. Clock lines are used to synchronize the work of the various parts so that they operate at the same moment; The enable line is used to control whether a part is operating; The reset line is used to restore the circuit to its initial state in the event of a business trip belt failure; Interrupt lines are used to notify the processor to stop the current operation and process interrupt requests when a specific situation occurs. Control lines play a vital role in the design of digital circuits, and their use can not only improve the stability and reliability of circuits, but also enable more flexible functions.

Hello, control lines refer to the sign lines used in architectural design to control the dimensions of buildings such as height, width, depth, etc. In architectural design, control lines are often drawn on a floor plan to help architects maintain the accuracy and consistency of the design and ensure that all parts of the building meet the design requirements. Control lines can be used to determine the structure, appearance, and function of a building, allowing architects and other designers to better communicate and collaborate.

In addition, the control line can also help the architect to check and adjust the size and position of the building during the construction process, ensuring the quality and safety of the building. Control lines are important for building design, not only to help architects maintain the accuracy and consistency of the design, but also to ensure the quality and safety of the building.