Electrical Distribution Networks in Low Voltage (LV)
Air Network Components
The electrical distribution air networks in LV consist of the following components: conductors, insulators, and supports.
Conductor Features
Conductors in these networks are typically made of copper or aluminum alloys with adequate electrical and mechanical properties.
- Insulated Conductors: These conductors have a coating that provides resistance to the elements. The voltage is 0.6/1kV, and the minimum cross-section is 16mm2 for copper (Cu). They are used in LV air networks, perched
Steel Structures and Partitions in Building Construction
Steel Structures
Types
- Forged Unidirectional
- Bi-Forged
Variations
- With Board
- With Top and Bottom Board
- With Landfill or Curdled
Forged Steel Features
Made of rolled steel joists (IPE or IPN), offering high resistance with limited deflection.
Entrevigado Solutions
- Rasilla Vaults
- Ceramic or Cement Mortar Blocks
- Wooden Board
Another option is forged steel sheet combined with other methods.
Partitions
Introduction
Partitions subdivide areas for privacy, thermal/acoustic insulation, and housing utilities.
They are categorized
Read MoreFundamentals of Electric Circuits: A Comprehensive Guide
Fundamentals of Electric Circuits
Introduction
When an electric current flows through a conductor, it produces a displacement of electrically charged particles. This movement of charges is what we call electric current. For an electric current to exist, there must be an electric conductor (e.g., ohmic conductors) and an electric field strong enough to generate a force that causes the charges to move. If the electric field is constant, the current is called direct current (DC). If the electric field
Read MoreA Guide to Plastics: Types, Properties, and Applications
Plastics: An Overview
Plastics are substances with diverse structures and properties. They typically lack a fixed boiling point and exhibit elasticity and flexibility, allowing them to be molded into various shapes. In a narrower sense, plastics refer to synthetic materials obtained through polymerization, involving the propagation of carbon atoms in long molecular chains derived from petroleum and other natural substances.
Properties of Plastics
Most plastics share these characteristics:
- Easy to work
Manufacturing Technologies: Shaping & Molding Processes
1. Manufacturing Technologies
Manufacturing technology is a set of transformation processes applied to a material during preparation. Requirements for piece manufacturing include:
- Prepared for assembly
- Faithful to the pre-established design
- Reasonable cost of materials and energy
- Reliable quality control
2. Shaping by Melting and Molding
A mold is a container with a cavity. Molten material is poured into the cavity, and solidifies in the shape of the cavity.
2.1 Mold Components
- Bottom: Main cavity or half
ASP.NET GridView Control and Shopping Cart Cookies
ASP.NET GridView Control
The ASP.NET GridView server control is a server-side rich-data control for repeated-value binding. It is the successor to the .NET Framework version 1.1 DataGrid control.
The GridView is a powerful control that provides the ability to display, format, paginate, and edit data.
Cookies in ASP.NET
Cookies are pieces of information generated by a web server and stored in the user’s computer for future access. They are embedded in the HTTP header information flowing back and forth
Read More