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Which kind of cable are used in hvdc transmission system?
In HVDC (High Voltage Direct Current) transmission systems, the primary types of cables used are underground cables and submarine cables. These cables are typically made from materials like cross-linked polyethylene (XLPE) or oil-filled cables, designed to withstand high voltage and environmental conditions. They are insulated to prevent electrical leakage and ensure safe transmission over long distances. Additionally, the use of bipolar cables allows for efficient transmission and improved reliability in the system.
What is the voltage used in submarine cable?
Submarine power cables work on voltages of 400 kV or more, often with DC because they are linking power grids that are not synchronised.Submarine communications cables now work with fibre-optics so the signals are modulated light-waves.Additional AnswerFurther to the original answer, another reason for using direct current for submarine cables is to eliminate capacitive currents that would flow if a.c. were used instead. The closeness of the submarine-cable's cores results in relatively-high levels of capacitance between each core and, with a.c., this would represent a capacitive load resulting in a continuous capacitive current along the cable. Such currents flow in all underground a.c. cables but, due to the length of most submarine cables, the capacitive current can be unnecessarily high.
Can Aluminum mylar-tape-shielded cables be used instead of Copper braid-shielded cables for instrumentation cables?
Actually, aluminum mylar tape shielded cables are better than copper braid shielded cables for instrumentation cables.
What is the advantage of leaving some slack when installing electrical cables?
Number of reasons: * Provides room for expansion when the building heats up. * Allows slack to move wires when remodeling. * Allows slack to reconnect wires when redoing terminations.
Are power cable armour to be earthed at both ends or at one end only?
One end only. Single point grounding is a rule of thumb. The reason for this is when you run cables together, including a shield or ground cable, the cables with power flowing in them will induce a voltage on the other cables. If two grounds are placed on a shield or ground cable, unwanted current will flow in a loop through the cable.
What are ten safety issues surrounding installing network cables?
what are 10 safety issues surrounding installing network cables
Who writes guidelines for installing network cables in commercial buildings?
The guidelines for installing network cables in commercial buildings is written byTIA/EIA.
What are the best practices for installing and maintaining outdoor cables?
The best practices for installing and maintaining outdoor cables include proper planning, using high-quality materials, burying cables at the correct depth, protecting cables from environmental factors, and regularly inspecting and maintaining the cables to prevent damage and ensure optimal performance.
What are the best practices for installing and securing security camera cables to prevent tampering and ensure optimal performance?
The best practices for installing and securing security camera cables include using conduit or armored cables to protect them, securing cables out of reach to prevent tampering, and using waterproof connectors to ensure optimal performance in all weather conditions.
What are the best practices for installing surveillance camera cables to ensure optimal performance and security?
The best practices for installing surveillance camera cables to ensure optimal performance and security include using high-quality cables, avoiding interference from other electrical sources, securing cables properly to prevent tampering, and testing the system thoroughly after installation.
What organization established guidelines for installing network cables in commercial buildings?
Tia/eia
What is the recommended landscape lighting wiring diagram for installing outdoor lighting fixtures?
The recommended landscape lighting wiring diagram for installing outdoor lighting fixtures involves connecting the fixtures in a series circuit, with each fixture connected to the main power source using low-voltage cables. This setup ensures even distribution of power and proper functioning of the fixtures.
Which security cables have the highest rates of customer satisfaction (and/or best Consumer Reports reviews)?
Epson security cables are the best.
How do you reset computer after installing oxygen sensor in 2003 Trailblazer?
remove negative and positive cables from battery, touch cables together for 30 seconds and then reconnect.....will be reset.
What happens when you reduce current in the cables?
you lose chanels
Do parallel cables of the same length carry the same current?
yes in case the two cables have same resistance
Single core cables benefits?
One of the single core cables benefits is high current rating. The other benefit is that the operating temperatures of single core cables are least affected by the other cables.
