What are power supply lines, electrical power, and electrical lighting? How to tell the difference?

What are power supply lines, electrical power, and electrical lighting? How to tell the difference?

Anyone who studies electricity knows that there are strong electricity and weak electricity! ! !

Strong power is the power supply trunk line you mentioned above (the trunk line refers to the main power supply, there is no need to explain the difference between the trunk circuit and the branch circuit), which provides energy (power) to the system! ! !

According to the characteristics of the load, it can be divided into the following categories:

Electrical power mainly supplies power to electric motors (inductive loads), especially various types of pumps, motors, etc.! ! !

This type of load should consider the power factor! Part of the electrical energy is stored in the magnetic field and is not directly converted into power!

Electric lighting (regarded as a purely resistive load), as the name suggests, supplies power to lighting fixtures such as sunlight! ! !

For this type of load, the power factor is regarded as 100%, and it consumes the same energy while supplying as much power as possible! (Simplified consideration, it is actually impossible to be 100%)

There are many more. I am worried that I will confuse you, so I won’t say more

What is "electrical power" in construction < /p>

1. Power is the source of all power. Various forces that cause machinery to do work, such as water power, wind power, electricity, etc.

The use of electrical energy as a source of power is called electrical power

Definition of electricity: as an industrial attribute, it is a general term for power generation, transmission, transformation, distribution, electricity consumption and its devices, etc. . As a dynamic attribute, it refers to the electrical energy used to do work.

2. Various devices composed of mechanics and other principles. Various machines, gears, guns, etc. are all mechanical devices.

Electrical power can be used to drive mechanical devices.

Why is it called the electrical profession? What does "qi" mean?

The electrical scope is narrower. Electrical refers to transmission, such as transformers, circuit breakers, contactors, etc., which only refers to the control during the transmission process. Electrical appliances are larger, including not only the control of transmission, but also energy conversion. , such as washing machines, refrigerators, etc. This is why electrical forums don’t discuss washing machines. [/quote][quote]The following is a quote from hanghost published at 2005-04-04 13:05:11:

Can electricity to electrical appliances be understood as weather to the sky? I have been engaged in the electrical industry for many years, but not many people have delved into the connotation and extension of its definition. I once browsed a discussion on the definition of electrical in the novice classroom, electrical/electrical engineering (EE), whose extension covers microelectronics, photonics, and microcomputer application technology. But it seems to deviate from the electrical we are talking about. However, one thing is certain. What everyone agrees on is that electrical appliances are concrete images, and electricity is an intangible concept! I don’t know which one is bigger and which one is smaller.

"Electrical" is also a word translated from foreign languages. At the beginning of Western industry, power machinery was driven by steam turbines. Later, electricity became available, so "electrical" began to not refer to industry. Power is also used, but now there is no steam turbine, so we simply refer to electricity as "electricity".

I have become accustomed to using the term "electricity", so I keep using it! Nothing profound! ! !

What does the building electrical power plan mean?

Supplementing the upstairs, the power plan includes the incoming and outgoing wires of the distribution cabinet (some may include power transformation and distribution), or the direct incoming wires from the outside to the main The distribution box, the incoming and outgoing lines from the distribution box to the distribution box and all levels of distribution boxes, the position and plane direction of the distribution cabinet (or distribution box) to the power device in the architectural drawing and numbering and circuits Annotated layout drawing. Different design units may have different practices. Some design units are accustomed to marking the wire specifications only on the system diagram. In this case, the corresponding system diagram should be read together. Some will mark these together on the floor plan.

What does electrical mean? What does electrical mean?

"Electrical" is a foreign word that is translated from a foreign language. At the beginning of Western industry, power machinery was driven by steam turbines. Later, electricity became available, so it was called "electrical". In the beginning, industrial power was not used. Now that there are no steam turbines, we simply use "electricity" to refer to electricity. The word "electricity" has no specific meaning.

Electricity is a science that uses electrical energy, electrical devices and electrical technology as means to create, maintain and improve limited spaces and environments.

Electrical appliances focus on individuals, while electrical appliances focus on systems! Electrical appliances are components and devices. Electricity is the entire electrical system.

What is a power plan? What is included? What are the differences and connections between power diagrams and strong and weak current diagrams?

Power generally refers to the electricity consumption of mechanical devices, and the load of electricity is relatively large.

The power plan is the wiring diagram for the electrical power of the mechanical device.

Strong electricity generally refers to lighting, sockets, etc.; weak electricity refers to telephones, network cables, automatic fire alarm systems, etc.

Power consumption can actually be classified into the category of strong electricity, but generally power installations are taken care of by the electricity consuming units themselves.

What is a power cable?

The cables installed in the unit are generally divided into two parts: lighting and power. Power refers to the cable that supplies power to large-load devices, such as various motors, electric heating and other devices.

Because these devices will produce a large voltage drop when they are started, if lighting is mixed in, it will affect the service life and cause unsafe factors.

What does TV represent in the electrical system diagram?

In the power electrical system diagram, TV represents the voltmeter and voltage transformer. TA represents ammeter and current transformer. In the construction drawings of civil building circuits, TV represents cable TV and closed-circuit television. TA represents electrical power box and electrical power cabinet.