Please visit silverstatewire.com for all of our latest product releases.
Please visit silverstatewire.com for all of our latest product releases.
Effective, June 30th, 2016 the Nexans manufacturing plant in Elm City, North Carolina, will be closing.
Nexans manufactures aerospace wire and cable: AS22759 and M27500 products. A few months prior, they also announced they would not be producing AS81044 style wire.
Rest assured though. We purchase wire and cable from multiple QPL approved manufacturers to avoid events such as this causing drastic issues with the supply of mil-aero products. We are confident that our existing supply chain will be able to support the demands where Nexans was included.
If for some reason, Nexans was your preferred manufacturer for any wire or cable products, we would be happy to discuss a solution with you and your engineering, production, and quality teams.
Thank you for your continued business, and have a great weekend!
As you may know RSCC Aerospace & Defense™ has operated as a legal division of RSCC Wire & Cable LLC since 2009. This has created unnecessary complexity and confusion for both organizations. In response while also keeping in mind their long term business objectives RSCC has created the legal entity, Marmon Aerospace & Defense LLC, a member company of, Marmon Engineered Wire & Cable LLC. As they make this transition they will continue to do business under the trade name RSCC Aerospace & Defense™. You will see the new legal name appear in any required legal documents and may occasionally see the associated logo on promotional material. This change will take effect January 1, 2016.
We look forward to providing you with the same high levels of product from RSCC Aerospace (Soon to be Marmon Aerospace & Defense) through this transition. If you have any questions or concerns please do not hesitate to contact us.
Thank you for your continued business. We look forward to another successful year and wish you the very best.
Listen to audio books, podcasts, or inspirational music on your commute both to, and from your workplace. This will help you get ready for the day, as well as unwind on your way home.
Arrive early and focus on the tasks required for the day. Who knows, you might even get done early and have time to get prepared for your next tasks in line.
Use this time to celebrate your achievements so far, or possibly re-focus your day. Try to avoid using your break as time to get caught up.
Walking meetings help focus. Maybe not all can be in an extra-curricular environment, but one meeting like this a day could help. Also, try to leave any meeting with clear and achievable objectives.
Exercise is proven to reduce stress and the resulting feel good factor can boost your productivity, while leaving you in a healthy mindset. Add some quick calisthenics to your day to keep your chi in the right place.
Rushing tasks will create more errors that are inevitably more work fixing in the long run. This doesn’t mean you should slow down. Find your tempo and try to stick with it throughout the day.
Share your achievements with others and support their work as well. Team building is the key to a successful work group.
Infuse genuine, positive emotions into your work and colleagues. Enjoy the contagious nature.
Remain compassionate to negative colleagues. People are usually negative for a reason. Perhaps they need to see or hear your good attitude to get out of a slump.
Never be afraid to ask for help. Collaborate with others to achieve mutual goals.
Don’t get bogged down with office politics. Focus on your tasks and what is needed of you.
Bite the bullet and face the mind numbing tasks head on. This will get you through them and on to the things you like doing most.
Understand any criticism aimed at you and use the feedback to improve you own work. A winning team has a coach or coaches who critique their players as much as possible.
Business changes and you must adapt in order to survive. Make sure you are open and adaptable rather than resisting change. Better yet, stay ahead of the curve and keep an eye and ear on what changes may be coming. You could even talk about it at your next meeting.
Last of all, “Good job!”
(Ex: Low Loss Coaxial Cable with a braid, foil, and a flat braid)
In environments where electrical noise is a factor. A Shielded cable is needed to prevent interference. Electromagnetic interference (EMI), whether it be radiated or conducted, can seriously disrupt the proper operation of other equipment. Jacket insulation protects a cable mechanically from scraps and abrasion and environmentally from moisture and spills, but insulation is transparent to electromagnetic energy and offers no protection. This is when shielding is needed to combat the effects of Electromagnetic interference.
In most cases, cables can be a main source of transfer for EMI, both as a source and receiver. As a source, the cable can either conduct noise to other equipment or act as an antenna radiating noise. As a receiver, the cable can pick up EMI radiated from other sources. A shield works on both.
The table below has basic rules as to the areas that are subject to these noise levels. Notice that switching heavy loads, inductive heaters, large transformers can all present high levels of both conducted and radiated EMI.
Placing signal cables next to power cables can also allow power-line noise to couple onto the signal lines.
|Noise Level||Noise Source||Wire Specification|
|High||Electrolytic processes, heavy motors, generators, transformers, induction heating, relay controls, power lines and control wire in close proximity||Heavy processing plants such as steel mills and foundries|
|Medium||Wiring near medium-sized motors, control relays||Average manufacturing plants|
|Low||Wiring located far from power lines, motors; motors <5 hp; no induction heating, arcs, control or power relays nearby||Storage areas, labs, offices and light assembly operations|
The primary way to combat EMI in cables is through the use of shielding. The shield surrounds the inner signal- or power-carrying conductors. The shield can act on EMI in two ways. First, it can reflect the energy. Second, it can pick up the noise and conduct it to ground. In either case, the EMI does not reach the conductors. In either case, some energy still passes through the shield, but it is so highly attenuated that it does not cause interference.
Cables come with various degrees of shielding and offer varying degrees of shielding effectiveness. The amount of shielding required depends on several factors, including the electrical environment in which the cable is used, the cost of the cable—why pay for more shielding than you need?—and issues like cable diameter, weight, and flexibility.
An un-shielded cable for industrial applications typically is used in a controlled environment— inside a metal cabinet or a conduit, where it is protected from ambient EMI. The metal of the enclosure shields the electronics inside.
A shield will reflect some energy, conduct some energy to ground, and pass some energy. There are two types of shielding typically used for cables: foil or braid.
For very noisy environments, multiple shielding layers are often used. Most common is using both a foil and a braid. In multi-conductor cables, individual pairs are sometimes shielded with foil to provide cross-talk protection between the pairs, while the overall cable is shielded with foil, braid, or both. Cables also use two layers of foil or braid.
In practice, the purpose the shield is to conduct to ground any of the noise it has picked up. The importance of this cannot be overstated—and failure to understand the implications can mean ineffective shielding. The cable shielding and its termination must provide a low-impedance path to ground. A shielded cable that is not grounded does not work effectively. Any disruptions in the path can raise the impedance and lower the shielding effectiveness.
Practical Guidelines for Effective Shielding
If you have any questions please feel free to call or email us.
(Example of a three conductor, M55021 Cable)
M55021 cable is military rated cable intended for use in the wiring of electrical equipment and components.
Recently being adopted by NEMA under the ANSI/NEMA WC 55021-2013 standard, M55021 cable was most commonly referred to as the MIL-DTL-55021 specification. The specification can still be found at the DLA website along with it’s most recent revisions.
The jacket materials called out in the M55021 spec decide the operating temperature of the cable itself. For example, PVC (Polyvinylchloride) ranges from -40°C to 105°C operating temp. Where the Fluoropolymer jacket types FEP (Fluorinated ethylene propylene) and PTFE (Polytetrafluoroethylene) range for -65°C to 200 °C temp rating.
An example of our the part number sequence for the M55021 specification is constructed is as follows:
Part number: B24C904-903-902P
The part number components are all defined per the specification:
The letters that designate the base wire used are:
|Letter||Wire Specification||Letter||Wire Specification|
|B||M16878/1 (NEMA HP7) 105°C||EE||M16878/5 (NEMA HP3) 200°C|
|C||M16878/2 (NEMA HP7) 105°C||BJ||M16878/17 (NEMA HP7) 105°C|
|D||M16878/3 (NEMA HP7) 105°C||CJ||M16878/18 (NEMA HP7) 105°C|
|E||M16878/4 (NEMA HP3) 200°C||DJ||M16878/19 (NEMA HP7) 105°C|
|26 AWG to 30 AWG||7 Strands|
|12 AWG to 24 AWG||19 Strands|
|10 AWG||37 Strands|
|U||No Shield or Jacket||S||Shielded, No jacket|
|P||PVC (Polyvinylchloride) Jacket||SP||Shielded, Extruded PVC Jacket|
|F||FEP (Fluorinated Ethylene Propylene) Jacket||SF||Shielded, Extruded FEP Jacket|
|J||Polyamide Jacket||SJ||Shielded, Polyamide Jacket|
|T||PTFE (Polytetrafluoroethylene) Jacket||STW||Shielded, Wrapped PTFE Jacket|
|STX||Shielded, Extruded PTFE Jacket|
Thank you for taking a moment to review our brief description of the M55021 specification. If you have any questions please feel free to contact us.
Phone: (775) 356-8969