Shield Catv
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Security Shield Tool $2.95 This quality security tool was designed specifically for connecting or removing coax cable protected by security sleeves. Features a knurled knob and long shaft to allow use with a wide variety of sleeves…. |
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New 50′ Quad Shield Coax Cable For Satellite & CATV $9.29 Excellent for both CATV and Satellite applicationsRG6 quad shield coaxial cable60% aluminum braid on first shield40% aluminum braid on secondary shieldSwept to 3GHzBlackUL Listed18 AWG center conductorCompression type F connector endsWeight: 2 pounds… |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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CATV Security Shield RG6 RG59 Easy Gripping Tool New $2.00 |
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CATV Security Shield for RG6 RG59 Coaxial Coax Cable $2.99 |
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RG6 Shield Coax Cable CATV/SATV 3Ghz 500 FT Bulk Black $42.89 |
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RG6 Shield Coax Cable CATV/SATV 3Ghz 500 FT Bulk White $42.89 |
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RG6 Shield Coax Cable CATV/SATV 3Ghz 1000′ Bulk Black $54.95 |
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RG6 Shield Coax Cable CATV/SATV 3Ghz 1000′ Bulk White $54.95 |
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CATV Security Shield for RG6 RG59 Wrench Sleeve Removal $2.99 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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RG6 Standard Shield Coax Cable,CATV, COAXIAL 874FT $32.00 |
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RG6 Standard Shield Coax Cable,CATV, COAXIAL 690 FT $29.00 |
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CATV Security Shield for RG6 RG59 Coaxial Coax Cable $0.01 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.90 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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Cable TV CATV Security Shield Filter Removing Tool Trap $3.29 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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NEW Hubbell Spike Shield HBLCATC ANTENNA CATV TVSS $17.82 |
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Cable TV CATV Security Shield Filter Removel Tool Trap $2.99 |
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CATV Security Shield f/ RG6 RG59 Coaxial Coax Cable New $5.40 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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CATV Security Shield for RG6 RG59 Wrench Sleeve Removal $2.99 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $0.01 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $1.99 |
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1000 ft RG6 Coax Plenum Cable Quad Shield catv 3GHz NEW $9.99 |
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RG6 QuadShield Quad Shield 3 GHz CATV/SATV Coax 1000′ $89.99 |
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CABLE TV SECURITY SHIELD AND FILTER REMOVING TOOL CATV $5.48 |
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CATV Security Shield RG6 RG59 Wrench Sleeve Remove Tool $1.79 |
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CATV Security Shield RG6 RG59 Easy Gripping Tool New $2.00 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $2.99 |
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CATV Security Shield f/ RG6 RG59 Coaxial Coax Cable New $1.99 |
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CATV Security Shield RG6 RG59 Easy Gripping Tool New $1.99 |
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CATV Security Shield for RG6 RG59 Coaxial Coax Cable $2.99 |
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CABLE TV CATV SECURITY SHIELD FILTER REMOVE TOOL TRAP $1.00 |
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CATV Security Shield RG6 RG59 Wrench Sleeve Remove Tool $3.35 |
If you are about to purchase wire or cable for the first time, or even if you have purchased it in the past, you may find the task daunting. After all, most distributors stock thousands of wire and cable products. Your application may require ribbon cable, but which specific ribbon cable should you buy? Having choices is important, but with so many choices, decision-making can become overwhelming.
Do you know what questions to ask? Before beginning a search, equip yourself with the right knowledge. Background information combined with basic preparation can give you some command during the buying process. In the article, “Specifying High-Performance Cables: The Devil Is In The Details,” by Alpha Wire Company, they evaluate four main issues to be considered. These are cable shielding, flexibility, chemical resistance, and temperature range.
Shielding
When purchasing cable, be sure to explore cable shielding. Shielding ensures that the electrical process runs smoothly. An engineer will tell you shielding minimizes problems of signal exit or entrance caused by interference. Types offered include braid, foil, spiral, or a combination braid/foil shield. Each type has advantages and disadvantages:
Foil Shields:
Uses: CATV, MATV, Video, computer I/O cables
Advantages: 100% cable coverage, low weight and low cost
Disadvantages: High DC resistance and lower mechanical strength
Braid Shields:
Uses: Computers to terminate interconnect for process or control applications
Advantages: Great structural integrity, flexibility and flex life
Disadvantages: Does not provide full coverage, heavy
Spiral Shield:
Uses: Microphone, audio cables and retractile cords
Advantages: Great flexibility and flex life
Disadvantages: Not effective above audio frequency range
Combination Shields:
Uses: Video, CATV, MATV, networking, computer I/O cables
Advantages: 100% foil coverage, strong and low resistance
Disadvantages: Higher cost than other shields
Chemical Resistance
An engineer will tell you that electrical cables possess various levels of chemical resistance, but there may be more to it. You should know which chemicals could present a potential problem in the entire lifespan of your cable. Also, consider that oils and corrosive chemical vapors or liquids could potentially enter into the cable connections. Any type of chemical intrusion could lead to cable failure. You might need to add additional sealing to prevent moisture permeation.
Temperature
Temperature range is another essential factor in the mix of things. What temperatures will your cable need to withstand to be effective? You may find that a cable possesses all the necessary electrical features required for extreme temperatures, but will it be able to adapt to the physical demands associated with that temperature?
Flexibility & Flex
A flexible cable can make installation and troubleshooting much easier. However, did you know that “flexing” is a different issue that needs to be addressed? Due to the nature of many manufacturing applications, cables may encounter constant flexing. Particular cables are built better for this than others.
Conclusion
There is more to finding the ideal cable than meets the eye. Don’t be intimidated by choices. A cable exists for just about every environment and application if you know what to look for. Spend some time asking the right questions and consider every angle.
About the Author:
Tim Flynn is the President of Allied Wire and Cable, a leading value-added distributor of electrical wire, cable, tubing, connectors, and accessories, headquartered in Collegeville, PA. Tim, a graduate of Drexel University, has been President of AWC for its entire 20+ years in business, and he has guided the rapid growth of the customer-focused, relationship-based company. For more about AWC, please visit: http://www.awcwire.com/
Article Source: ArticlesBase.com – How to Select a Wire or Cable