Belden’s new HaloarrestXLink LSZH Thermoset Jackets have a lot to offer. These new jackets provide a non-toxic cable solution for many demanding industrial markets including oil and gas, utility and power generation, transportation, petrochemical and mining. The new jackets offer offer optimal oil, abrasion and high temperature resistance using a low smoke zero halogen (LSZH) compound.
The HaloarrestXLink capability can be specified for any 600V Belden instrumentation or control cable. The HaloarrestXLink Jackets will expand Belden’s instrumentation and control offerings to address safety concerns in heavy industry. HaloarrestXLink thermoset jackets do not melt at any level of heat or when exposed to flame, protecting workers and preventing damage to expensive machinery. Like Belden’s LSZH thermoplastic jackets, HaloarrestXLink thermoset jackets provide a safe, non-toxic, non-corrosive alternative for organizations that prefer to use non-halogenated products.
Belden offers two thermoset jacketing options: HaloarrestXLink-1, which is compliant with the UL-1277 Oil Res I requirement and HaloarrestXLink-2, which is compliant with the UL-1277 Oil Res II requirement. These HaloarrestXLink jackets are available for order now in North and South America.
The first AES (Audio Engineering Society) convention I ever attended was 1968 in Los Angeles. At the AES that year were a dozen or so exhibitors. One was a guy named Ray Dolby who was showing his revolutionary “Type A” noise reduction, one channel of which took maybe 7 rack units?! Across from him was Paul Klipsch showing his “Heresy” bookshelf speaker (since he only believed in horn loaded speaker designs). Of course, I didn’t know that I was seeing history in the making, that these people were the icons of audio. How little we know when we are young and foolish. (Now I am old and foolish.) I snuck in to the AES show in 1968. I joined AES in 1969. Read more
We recently received a letter from Jim Schultz in Warren, CT and thought we’d share:
I have been meaning to write for almost a year now to extol the virtues of this excellent microphone cable.
30+ years ago, when I was doing broadcast and remote work aside from my “regular” job of air personality, production director and assistant CE for an AM/FM combo here in Western CT, I decided to bite the bullet, spend some money, and make up some microphone cables that would last for a while. I bought a 500 foot roll of 8412, a bunch of Switchcraft XLRs, and went to work making up 10 fifty footers. Read more
As a leader in providing environmentally-friendly solutions to its customers, Belden has recently released two new “green” cable products: GreenChoice LSZH-Jacketed Cables and the GreenChoice PPO Hook-up Wire.
GreenChoice LSZH-jacketed cables are fully-recyclable, halogen-free and meet all current environmental standards, including WEE, REACH, RoHS and Prop 65. Halogen-free GreenChoice cables are non-toxic and can be deposited in landfills. These GreenChoice cables are particularly beneficial when installed in control and instrumentation applications, computer and CAD/CAM equipment, power supplies, audio, personal computers, POS and automotive – wherever humans or animals are in close proximity to the cables and could be exposed to halogens.
All GreenChoice cabling is available off-the-shelf in 500 and 1000 ft. put-ups. Belden also offers LSZH cables as standard products in its Shipboard product line. LSZH jackets are also available on special order for most Belden classic cables.
The Belden PPO Hook-up Wire is an environmentally-friendly alternative to traditional PVC-insulated and XLPE-insulated hook-up wire. PPO Wire also meets or exceeds the electrical and thermal characteristics of traditional products, while having the adding “green” benefit of being smaller in diameter, lighter in weight, stronger and more durable.Superior dielectric strength enables a thinner wall thickness and an OD which is up to 45 percent smaller than equivalent wires. The cable’s weight is reduced by up to 40 percent, due to PPO’s lower specific gravity/density as compared with PVC, polyethylene (PE) and XLPE insulations.
Hook-up wire is used by a broad range of OEM manufacturers and markets, including: electrical panel builders; building construction and maintenance operations; manufacturers of electrical and electronic products; computer manufacturers; and the production and assembly of appliances, furniture, automobiles, and automotive components and systems.
Whether it’s the new LSZH-Jacketed Cables or the PPO Hook-up Wire, go green—both for efficiency and the environment.
If you’re looking for reliability for your fieldbus network in harsh environments such as the oil sands of Canada and other oil, gas and petrochemical operations, Belden has released the perfect cables for you. Belden has expanded its line of FOUNDATION Fieldbus cables with Type A C(UL) and UL tray-rated cable. The cables comply with both Canadian and US regulatory requirements and meet the Fieldbus IEC 61158-2 (ISA/SP-50) specification.
Standard single and multi-pair cables are available with an easily identifiable orange jacket, or a blue jacket for Intrinsically Safe (IS) applications. They are UL approved for direct burial, are oil and sunlight resistant, RoHS compliant and CE approved. XLP insulation provides additional physical enhancements of the conductors including better cut through and chemical resistance. Read more
When we exhibited for first time at IBC – 15 years ago now – many broadcast engineers preferred proprietary hardware, because it was built specially for the broadcast industry and therefore perceived to be more reliable. Content was produced for one single channel and there was a format that was working well. At today’s IBC, we see instead a lot of IT-based solutions, and there are two main drivers behind this. First, the way the audience views TV content changed. Viewers nowadays are able to watch linear TV on four types of screen: 1) TV; 2) Computer/Laptop/Tablet; 3) Mobile phone; 4) Giant screens/ Public viewing. That means broadcasters are competing in a multiscreen and multiplatform environment. Second, IT infrastructure provides an open framework for managing media, processes and multiple workflows, with the potential for greater productivity, increased efficiency and more agile and profitable operation. Read more
If you play with coax, short for coaxial cable, you probably know this it is available in a number of different impedances. The most common is 75 ohm, like video cable or antenna cable, but in fact our products range from 32 ohms up to 124 ohms.
Why all these different numbers? It’s not an accident of course, and there is a reason for each one. Today, we’re going to take a quick look at 50 ohm coax cable.
Belden makes hundreds of 50 ohm cables, including a whole line of ultra-low loss versions (Belden 7805 to Belden 7977). The two largest versions (Belden 7976 and 7977) are shown in the photograph below. They are HUGE. The 7977 has a diameter of .600″ six-tenths of an inch! This is the largest coax cable that we make.
But first of all, why 50, or any other number? The answer can be shown in the graph below. This was produced by two researchers, Lloyd Espenscheid and Herman Affel, working for Bell Labs in 1929. Read more
One day, Georg Simon Ohm did an experiment. He built a voltaic pile – what we would now call a battery. To judge the voltage, he attached a wire to each end, held one in his hand and touched the other to his tongue. Ouch! He did notice one interesting thing. If he stuck with copper wires and he went to a larger wire, his tongue hurt more! I am not making this up! You can Google it.
That told him there must be some relationship between the size of the wire and the voltage running down that wire. He soon realized that this could be described in a formula, the formula we now call Ohm’s Law. He told this to his scientific friends and they were aghast! The idea that there was a relationship between voltage and current and the size of the wire (resistance) was so controversial, that they begged him not to reveal it. And so these results were not published until his death. It is pretty much the same story as Copernicus and the sun-centered planets. And we’re still using Ohm’s Law today. Read more
When you deal with high frequencies, above around 100 MHz, you have entered the zone of the “transmission line.” It has to do with the wavelength of the signal, and that is a discussion we’ll have in future blogs. But what it means is that the impedance of the cable is now important and you have to match the impedance of the source and destination devices.
This also means that everything in-between must match the impedance chosen and, by “everything,” I mean cable, connectors, patch panels, patch cords, adaptors, bulkheads, feedthroughs – erything! It also means that any variation in impedance can affect the signal on the line. This is true for every transmission line, whether we’re talking about a 50kW RF signal going up to an antenna or an HD video signal going between boxes. Of course, in these two examples the impedance is different (50 ohms for that high-power line and 75 ohms for that video cable). Read more
Networking safety, uptime and control should be key factors in selecting networking cabling and hardware components such as switches and routers. ‘Industry’ is a broad term encompassing a multitude of diverse operations — from discrete manufacturing of every kind, to processing of foods and beverages, pulp and paper, chemicals, oil/gas and petrochemicals, to commercial and government sites such as power generation plants, wind energy farms, water and wastewater treatment facilities, airports and transportation hubs, military bases, ships and shipyards, rail yards, tunnels, dams and bridges. Read more