MindMap Gallery Electrical Building
Architectural electrical is an applied discipline that uses electrical technology as a means to create a humanized living environment in a limited space. Building electrical refers to the electrical platform constructed using modern advanced scientific theories and electrical technology in buildings, collectively referred to as building electrical. Construction equipment - construction electrical power supply and distribution dry information mind map, hurry up and collect it to learn it!
Edited at 2019-06-16 01:31:54This Valentine's Day brand marketing handbook provides businesses with five practical models, covering everything from creating offline experiences to driving online engagement. Whether you're a shopping mall, restaurant, or online brand, you'll find a suitable strategy: each model includes clear objectives and industry-specific guidelines, helping brands transform traffic into real sales and lasting emotional connections during this romantic season.
This Valentine's Day map illustrates love through 30 romantic possibilities, from the vintage charm of "handwritten love letters" to the urban landscape of "rooftop sunsets," from the tactile experience of a "pottery workshop" to the leisurely moments of "wine tasting at a vineyard"—offering a unique sense of occasion for every couple. Whether it's cozy, experiential, or luxurious, love always finds the most fitting expression. May you all find the perfect atmosphere for your love story.
The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
This Valentine's Day brand marketing handbook provides businesses with five practical models, covering everything from creating offline experiences to driving online engagement. Whether you're a shopping mall, restaurant, or online brand, you'll find a suitable strategy: each model includes clear objectives and industry-specific guidelines, helping brands transform traffic into real sales and lasting emotional connections during this romantic season.
This Valentine's Day map illustrates love through 30 romantic possibilities, from the vintage charm of "handwritten love letters" to the urban landscape of "rooftop sunsets," from the tactile experience of a "pottery workshop" to the leisurely moments of "wine tasting at a vineyard"—offering a unique sense of occasion for every couple. Whether it's cozy, experiential, or luxurious, love always finds the most fitting expression. May you all find the perfect atmosphere for your love story.
The ice hockey schedule for the Milano Cortina 2026 Winter Olympics, featuring preliminary rounds, quarterfinals, and medal matches for both men's and women's tournaments from February 5–22. All game times are listed in Eastern Standard Time (EST).
Electrical Building
Electrical system classification
Strong power system
The processing object is power supply, which is characterized by high voltage, large current, high power and low frequency. Mainly consider the issues of reducing losses and improving efficiency
Weak current system
The main processing object is information, that is, the transmission and control of information, which is characterized by low voltage, small current, small power, and high frequency. The main consideration is the effect of information transmission.
Building electrical system components
Supply and distribution system
Electrical lighting system
Power distribution system
Lightning protection and grounding system
Automatic fire alarm system
cable television system
Communication Systems
Cable broadcasting, sound reinforcement and simultaneous interpretation systems
Security system
Building automation system
Electrical characteristics of modern buildings: large electricity load and high power supply reliability requirements; complex electrical equipment and multiple functions; relatively high fire protection requirements; high degree of intelligence
Supply and distribution system
Power system composition
Electric energy production and consumption system composed of power plants, transmission and distribution networks, substations and users
Load classification and power supply measures
The concept of "load" here refers to electrical equipment, and "load size" refers to the power of electrical equipment.
Level 1 load: (1) When interruption will cause personal injury; (2) When interruption of power supply will cause heavy economic losses (3) When interruption of power supply will affect the normal work of important power-consuming units
Secondary load: (1) Interruption of power supply will cause large economic losses (2) Interruption of power supply will affect the normal work of more important power consuming units
Level 3 load: Those that do not belong to the above two types belong to level 3 load.
Dual power supply for the first-level load, two circuit power supply for the second-level load, and no special requirements for the third-level load
Emergency Power Supply
Diesel generator set (power outage for more than 15 seconds)
Emergency power supply unit (0.25s)
Uninterruptible power supply device (millisecond level)
Battery device (small millisecond level DC power supply)
Solar photovoltaic battery power system (millisecond AC power)
Load Calculation