Why Should You Use Shielded Cables In Wire Assemblies - Miracle Electronics

1. Why Should You Use Shielded Cables In Wire Assemblies – Miracle ElectronicDevices Wire assemblies are often used in applications where environments are industrial, commercial, and factory-oriented – all of which are electrically noisy settings. To reduce the risk of electrical noise interference that your wire assemblies may face shielded cables can greatly help to improve the performance of your equipment. What is electrical noise, you may ask. It is a combination of electromagnetic interference (EMI) and radiated noise. Wire assembliescan become the primary source of EMI transfer as they can produce noise that passes to other equipment, or can act as antennas to radiate noise. They can also act as receivers and pickup EMI generated from other sources. Such noise transfer can seriously disrupt the data transmission and functioning of equipment and electronic components around theassembly. What kind of shielding should the wire assemblieshave? Now, you are certain that using wire assemblies that are shielded is a wise decision. But, what kind of shield should they have, is the nextquestion. JACKET OR OUTER SHEATH – The shielding must be a jacket or outer sheath that protects each wire from abrasion, moisture, spills, and wear and tear. However, an outer sheath is vulnerable to electromagnetic energy, thus providing no EMI protection. Conversely, jacketing with a cable shieldisaneffectivemethodthatsurroundsthecomponentswithinthecableandcanimpact

2. EMI by reflecting the energy or transmitting the noise to the ground. In this way, the EMI is prevented from reaching the inner components of thecable. FOIL OR BRAIDED SHEATH – Another consideration is whether the wire should be foil shielded or braid shielded. Foil shields are those that are made up of aluminum or copper and attached to a carrier like polyester, which provides durability and toughness to the foil to be wrapped around the cable without tearing. However, this foil shield is comparatively thinner. On the other hand, brand shields consist of a woven mesh made of copper wires, around a cable core. These braids provide a low-resistance path to the ground creating a much easier termination point than a foil shield through crimping or soldering. However, foil shields offer complete coverage, while braid shields provide only 70-95% coverage to thecomponents. Because foil sheaths provide better coverage than braid sheaths, but braid sheaths are much thicker and denser than foil sheaths, a combination of both foil and braid sheaths is seen to be popularly used to offer the best protection. Both these types of sheaths support each other, thus overcoming the deficiency of the other by compensating it with their own strength. Therefore, you must opt for shielded cables that have a combination of both sheaths to provide improved shielding effectiveness. However, remember that a shielded cable can only be effective if the equipment it is installed in is properly grounded. So, while it is important to purchase your shielded wire assemblies from leading wire assembly manufacturers in Indialike Miracle Electronics, it is equally important to make sure that you have properly grounded your equipment. For more information, please visit: MiracleElectronics