Electrical Engineering

Network Media and Connectors

Cabling is the medium for the transmission of data between hosts on the LANs. LANs can be connected together using a variety of cable types, such as unshielded twisted-pair, coax, or fiber. Each cable type has its own advantages and disadvantages . Three primary types of cable media can be used to connect systems to …

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Identifying Network Topologies

A network topology is the physical layout of computers, cables, and other components on a network. There are a number of different network topologies, and a network may be built using multiple topologies. The different types of network layouts are : Bus topology Star topology Mesh topology Ring topology Hybrid topology Wireless topology Bus Topologies A …

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characteristics of a network

A network is a group of systems that are connected to allow sharing of resources— such as files or printers—or sharing of services—such as an Internet connection There are two aspects of setting up a network: the hardware used to connect the systems together and the software installed on the computers to allow them to …

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electrical switchboards

Switchboards are similar in function to panels, but on a larger scale. A switchboard divides large blocks of electrical current into smaller blocks of current used by electrical devices . Applications range from small office buildings, to large industrial or institutional facilities. Switchboards are low voltage equipment, 600 volts or less. The purpose of a …

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electrical panelboard

Panelboards are needed to distribute electricity throughout commercial and industrial facilities. A panelboard is a component of an electrical distribution system which divides an electrical power feed into branch circuits, while providing a protective fuse or circuit breaker for each circuit, in a common enclosure. The panelboard serves to protect branch circuits from overloads and …

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Molded Case Circuit Breakers

Molded Case Circuit Breakers are used to efficiently distribute power throughout an electrical system. They provide a means to manually open or close a circuit, and are designed to protect wiring and equipment by automatically opening under an overload or short circuit condition. In the United States, most Molded Case Circuit Breakers (MCCBs) are listed …

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what is miniature circuit breaker

Miniature Circuit Breaker (MCB) are designed to protect the conductors and insulation from damage due to over load and short circuit.The simplest way to visualize a miniature circuit breaker is to think of a load center in a home, the circuit breakers inside are miniature circuit breakers. Components MCBs are made up of 5 components …

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Types of Low Voltage Busway

The two types of low voltage (LV) busway are feeder and plug-in. They are commonly intermixed on runs of busway and plug into each other. Feeder Busway Sometimes called low impedance busway Used to feed power to a distant point Beneficial because the voltage drop over the run is generally low (somewhat lower than plug-in …

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What is Busway?

Busway is an economical, modern method of distributing electricity within a building. It is similar to the tracks that an electric model train runs upon, both in look and in function. Train track sections can be snapped together to form a number of different paths for the train to follow. Likewise, sections of busway can …

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what is access control system how it works

Electronic Access Control Systems comprise electronic elements, physical elements, operational elements, and logical elements to create a complete working system that facilitates rapid and reliable access to authorized users in a facility at minimum long-term cost to the organization. Access Control elements include: Users Access Portals Credentials and Credential Readers Credential Authorization Process Locks, Alarms, …

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