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Posts tagged: tray cable

Types of Tray Cable Explained

The term “tray cable” was developed through its installation in cable tray. Each type of insulation is engineered to be able to withstand some type of environmental condition that could possibly damage the copper underneath it. In cable tray, insulation would come in contact with moisture, oils and solvents and if it’s not protective enough to withstand those things the copper could be affected.

The first two things to determine about your tray cable will be the voltage and the shielding. There is a 300 volt version called PLTC (Power Limited Tray Cable) and a 600 volt “tray cable” for applications requiring more power. There are three versions of shielding that are offered including unshielded, shielded and individually shielded.

Tray Cable Shielding

Shielded Tray CableAn unshielded tray cable is the cheapest and most basic version you can get if your application doesn’t need to block EMI (Electromechanical Interference). When two cables run next to each other in tray or duct there can be a certain amount of interference which is blocked with a shield over the conductors. An aluminum foil polyester shield wraps around all of the conductors to limit the amount of EMI. To picture it in your mind, imagine a glowing circumference pulsating around each of the cables. When they connect there’s “interference” so the shielding shrinks that circumference to limit the amount of interference.

Shielded Tray CableAn individually shielded tray cable has a shield around each pair of wires inside the cable. So a “3 pair” cable has an individual shield around each pair and an overall shield wrapping around all of the conductors together. This is needed when each pair can interfere with each other. The shield will limit the EMI between each set of two wires so that there is a clean signal passing through.

Flexible Tray Cables

Once you decide the voltage and the shielding for your tray cable you will just need to figure out the AWG (American Wire Gauge) and the amount of copper conductors. The flexibility remains the same throughout most tray cables because the installation types are nearly all the same. When a cable is being snaked through duct, or pushed through cable tray, added flexibility would only hurt the process. Therefore, most tray cables come with stiff copper strands to keep a firm hold during the installation in tray and duct.

There are plenty of flexible electronic cables available that are similar to tray cables that can be used if your installation is a bit different than the standard. So, make sure that the insulation with withstand everything that the cable will be exposed to and include the option of added flexibility to your cable. It will bend easier and wrap around corners easier but it will not be the best option for a cable installed in conduit or duct.

Written by: Chris Bell
chris@wesbellinc.com

PVC 26 AWG Hook Up Wire Information

With a variety of multi-conductor cables that are being sold on the web, it is important that you are aware of how these wires and cables actually work. Selecting the best PVC 26 AWG wire is vital because you have to make sure that you are purchasing the most suitable product. The following are the categories that you should consider when searching for a top quality and low priced multi conductor cable:

  1. Power cord
  2. Tray Cable
  3. Electrical wire
  4. Electronic multi-conductors

The portable power cord has the same function as the ordinary extension cable. In fact these two items have similar features. The outer part is covered with rubber or PVC components and the conductor is hidden inside. The best thing about these products is that it is portable. Numerous building contractors and electrical engineers use the PVC 26 AWG wire on their projects. These professionals know the importance of having the finest materials that should be used for all those crucial works.

If you are searching for the cheapest type of multi conductor cables, it is recommended that you search the best online electronics stores for this particular purpose. Wes Bell Electronics is a well known company that sells all types of multi conductors that you can bring to your construction site. Your powerful tools and equipments require only the first class set of wires and cables so you should be able to shop for the ideal materials. Multi conductors that are made of PVC or polyvinyl chloride are especially manufactured to withstand strong electrical surges.

Electricity should at all times be controlled with the use of the most robust materials and the best way for you to prevent any type of electrical problems that could happen in the future is to purchase PVC 26 AWG wire from WesBell Electronics. All the products that you can find at the company’s web page were fabricated with the use of copper and aluminum conductor. Whether you are constructing a residential house or a commercial building, it is important that you browse the web and place an order for the toughest wires and cables.

Before you proceed with your building projects, determine the types of cables that you require. It is recommended that you purchase both outdoor and indoor PVC cables at a reliable online store. You are given the assurance that all the materials will reach the job site within a reasonable time WesBell has been dealing with cables and wires for more than twenty years and during this period, a lot of customers have already proven that the company only ships top rate wires at an incredible bargain price.

Multi conductors can be bought together with any of the following items: single-conductor, twisted pair and twist triad. Each and every strand is solid and thick and it is very flexible as well. The online store provides all types of wires and cables. All you have to do is to surf through the net and take a closer look at the products which are being offered therein.

Shielded and Unshielded Tray Cable Information

Tray cable has a different meaning to a lot of people and each person seems to think that phrase describes exactly what they need, but more information is actually needed. There are many applications that require different types of tray cable and each will have their own specifications that are needed to extend the cable life as long as possible.

The main difference is shielded or unshielded because paying for a shield when you don’t need one is a waste of money. However, not getting a shield when you need one will cause many problems. Imagine a force field, or ring of vibration, that hovers outside of a cable due to the electrical current running through it. That’s called EMI which is “electromagnetic interference” that could interfere with other cables EMI or other equipment.

The shield over the copper conductors of a tray cable minimizes the EMI that can get outside the cable and also blocks other cables EMI from interferring with it. An unshielded tray cable can be used when it can’t interfere with any other cables or equipment.

For applications with very high EMI there is also a multipair tray cable that has sets of two twisted wires and a optional individual shield over each pair in the cable. The twist limits the EMI and the added shield over each pair lowers the EMI quite a bit more than a standard aluminum overall shield.

Voltage is the next difference to discuss because there are 300 and 600 volt tray cables available. The 300 volt PLTC (Power Limited Tray Cable) is commonly used indoors, outdoors and in conduit. The 600 volt tray cable has a larger outer diameter and it’s used outdoors, in conduit and directly underground.

Please call if you’re looking for any type of tray cable or if you have any questions or comments about our website. We work hard on the website to not only offer products for sale, but to inform buyers and users of why they’re buying a particular product we have. By getting into conversation about the application we have the ability to help them save money because they may not have needed everything they thought they did.

WesBell Electronics Inc
(800) 334-8400

Electrical Wire Questions and Answers

We get a lot of phone calls and emails with questions about many different types of electrical wire and cable. Since some of them are repeated we’re going to put them on our website so that people can find the answer before they need to make a phone call.

What type of electrical cable do I use to run electricity to my barn or garage?

If it’s above ground or in conduit you can use SER (Service Entrance Cable). Talk to an electrician first to check the gauge of the cable you’ll need. The electrician will do a calculation based on the length of the cable, the amount of amps you need and the voltage.

If you want to run the cable directly underground then you need to use UFB cable or Tray cable. UFB cable is an underground feeder that has added protection to be used underground. If you need something bigger than 6 awg then you’ll need to use tray cable which can also be used directly underground. Tray cable gets as big as 750 mcm with 4 conductors plus a ground wire.

Can I use Romex wire if it’s only going to be outdoors for 10 feet?

No matter how long I work for a wire and cable company I know this question will continue to come up. Romex can NOT be used outdoors because the jacket insulation isn’t manufactured with enough protection to resist any moisture, gas, oil or solvents. Anything that penetrates the jacket could hit the bare copper ground wire and short the connection.

Can I use THHN as dog fence wire?

Only if you keep the wire above ground. Usually dog fence wire is buried in the ground so you’ll need a wire that has enough protection to be used directly underground. THHN wire is used indoors, outdoors and in conduit only. The manufacturer states that THHN can not be used underground so that’s the message we pass along.

What type of wire do I use if I need high temperature?

Standard PVC hook up wire is rated for 105°C with a few different voltage ratings available. If you need higher temperature then you should use PTFE wire which is rated up to 200C. It’s silver plated copper with a PTFE insulation and it’s getting more expensive by the minute. Copper is rising, silver is rising and PTFE compound is also rising to give PTFE wire 3 possible inceases each day.

Please email or call us with any questions you might have about electrical wire and cable.

WesBell Electronics Inc
(800) 334-8400

Tray Cable – Underground Multi-Conductor Electrical Wire

Tray cable has become a very big seller over the past year for WesBell Electronics. We started selling all types of electrical wire over 5 years ago to compliment our already booming electronic line. Tray cable has been a very easy sell for many reasons in the electrical industry.

Our type TC-ER tray cable is manufactured with THHN wire conductors and a PVC water tight jacket which makes it available for direct burial in the ground. It’s round with a black jacket and all black conductors that are numbered for easy installation. It ranges in awg sizes from 18 to 750 mcm with up to 4 conductors and a ground wire.

The reason it’s such an easy sell is that it has all the bells and whistles with out the outragous pricing. Copper still weighs heavily on the price because it’s so high right now but other cables manufctured for the same undergound use have a higher expense.

Type MC cable is slightly cheaper because it can only be used in conduit. If you want an MC cable that can be direct buried you’ll need the additional PVC jacket over the metal clad armour. That makes for a very expensive cable but it can also be used in concrete which tray cable cannot.

Many of our customers call and want to use Romex® for their application. Then they say it’s only going outside for a few feet so it should be fine for this situation. Well that’s not true. Romex® doesn’t have the protection that UFB cable and tray cable have because it’s only made to be used for indoor applications. That’s why it’s cheaper and that’s probably why they want to is it over the more expensive cable, but getting tray cable first is better than replacing the Romex® later.

WesBell Electronics Inc
(800) 334-8400

Indoor Outdoor and Underground Copper Electrical Wire

Electrical wire comes with all different types of insulation, but they all have the common denominator of copper or aluminum stranding. The insulation changes the expense of the wire or cable based on the environment you need to place it in.

Indoor Wire and Cable

THHN wire is the most common type of single conductor electrical wire. It’s manufactured with a dual rating of THHN and THWN so that it’s all water resistant. It can be used indoors and in conduit only.

Using your copper wire and cable indoors requires the least amount of protection on the insulation because there isn’t much that can hurt it. There isn’t any moisture, oil or solvents effecting the life of the insulation so it can be made for less money. Romex cable is the most common type of indoor electrical wire which uses THHN wire conductors.

Outdoor Wire and Cable

THHN is still the single conductor wire used outdoors and in conduit because the THWN rating can resist water, oil, gases and solvents. However, running 3-4 single wires can be difficult for the installer because they’ll have to run each one individually or tie all 3 together and try to run them as one.

Romex will not work outdoors OR in conduit so you’ll have to upgrade in quality and price to an MC Cable. It’s manufactured with THHN wires and a Metal Clad jacket for easy installation in conduit. The ground wire in MC cable is also a THHN wire rather than a bare copper ground wire so the cable remains moisture and solvent resistant.

Underground Electrical Wire

THHN cannot be buried directly in the ground so you’ll have to upgrade on a single conductor to USE-2 wire. It’s used mostly on solar installations and has a rubber insulation.

If your installation is directly in the Earth instead of in conduit then you’ll have to upgrade to a UFB cable which is an underground feeder cable. It’s color coded and flat instead of round with a bare copper ground wire. The insulation covers each conductor individually to keep it water and moisture tight directly underground.

Tray cable is also an underground cable for larger sizes since UFB cable only goes as large as 6 awg 3 conductor. Tray cable goes as big as 500 mcm 4 conductor with ground. It has all black numbered THHN conductors and an overall PVC jacket. We sell it per foot on our website so that you can get the exact length you need and avoid any waste.

Those are the basics of indoor and outdoor electrical wire. There are also basics on electronic wire and cable based on heat and voltage ranges for different applications.

WesBell Electronics Inc
(800) 334-8400

Tray Cable is the Newest Electrical Wire Addition

The newest product addition to WesBell has been tray cable because of the amount of uses this type of electrical wire has. It’s universal in a sense because it can be used just about anywhere without an oversized jacket.

THHN / PVC Tray Cable is the standard type with THHN wires and a bare copper ground wire. Each wire is black with a number code of 1 through 4. The tough outer PVC jacket has the approvals for direct burial in the earth.

Another type of underground cable available in this field is UFB Cable. The difference with UFB wire is that it’s color coded and flat rather than round. It’s the common step up in smaller applications up to 6 awg from Romex and MC cable. Romex can be used indoors and MC cable can be used outdoors but not directly underground.

However, if you need a bigger gauge underground cable then tray cable sounds like a good fit for your application. It’s 600 volts type TC-ER tray cable and comes in copper conductors only.

There are many types of electrical wire types even though most of them come with copper conductors. Each insulation type is a step up from the next to offer a variety of pricing. Obviously and indoor only cable will be cheaper than one that can be buried directly in the ground because of the approvals and tests it needs to go through. So be sure to tell your sales person exactly what you’re using your electrical cable for in order to pay the lowest price possible.

Information and Facts on Power Cable

Power cable comes in a variety of shapes and sizes, and can look complicated to the layman. These cables can be single-conductor, multi-conductor, as well as industrial strength or for personal use. Each type of power cable has its own advantages, which make them suitable for certain types of applications.

A power cable is categorized in three classes, 1) high voltage (for applications requiring load greater than 40,000V), 2) medium voltage (for applications requiring load between 6000V and 36,000V) and 3) low voltage (for applications requiring load below 1000V). These cables are used for feeders and other heavy machinery, along with branch circuits in electrical utility, commercial and industrial applications.

Single-conductor power cable is used in various applications such as stage lighting, locomotives, DLO and for welding purposes. Each single-conductor cable, depending upon its use, has a different rating for amps, voltage, flexibility and insulation, each having a different price-level.  

There are many multi-conductor cables; extensions cords, Type G-GC, Type W, SOOW and portable cords, each encased a rubber jacket for insulation. These cables are safe and flexible and when additional flexibility is required, there is a multi-conductor cable available for this need. The SOOW multi-conductor cable is similar to the extension cord (before the plugs are attached) and is generally used to supply power generators and tools in industries.

The least-expensive power cable of this group is the welding cable. Welding cable has a rubber jacket and flexible copper fibers and is rated to 600V. DLO cable also has the rubber jacket, is rated to 2000V and has tinned copper fibers. The DLO can carry more power and therefore has a higher corresponding price.

Remember, when installing power cable, it is recommended that you consult with your electrician. And when it is time to purchase your cable, some helpful hints include knowing the operating temperature, amperage, voltage, outer diameter (cable diameter + insulation jacket). Please call WesBell at 800-334-8400 for all your cable needs.

Installing THHN cable in cold weather

When the weather is cold, you can have problems not just with your heating bills and skin, but also with your cables. For example, the THHN cable is easily vulnerable to deterioration due to cold weather.

THHN cable is Thermoplastic, High-Heat Resistance, Nylon-Coated, therefore the name- THHN. Though it is versatile cable and does not fall under any specific application category, it is mostly used under Hook-up wire class.

Strengths

THHN cable comes in a variety of strengths. And since it is made from thermoplastic material, it is easy to heat and cool this wire many times to change its shape. But there is a limit to the number of times this wire can stand heating and cooling. It has its lower and higher temperature limits and if the temperature changes cross this range, this wire can become unstable. Temperature range depends upon manufacturers.

When the THHN cable comes with ‘High Heat’ rating, it means that this wire can be used in high temperature scenarios. These wires come with various specifications, which determine the specific applications where these can be used. For example, “Nylon coated” means that a certain thermoplastic material is used in this wire.

Coming to installation of the THHN cable in the cold weather, there are some simple guidelines that you should follow. Keep this cable indoors, and not in the outdoor harsh environment. Generally, a temperature of 65°F works well.

If keeping the cable indoors is not possible, bring it inside for at least 24 hours, before you install it.

If the outside temperature is below 14°F, then do not install the THHN cable.

While installing the cable, take care that it is not dropped on the floor, as these impacts can cause cracks in the stiff cable material.

Make sure you do not bend the cable too much, because it can cause the cold and stiff cable to break.

            Once you have installed it, this cable will work properly in environments with temperature higher than 14°F.

            All you need to Know about High Voltage Cable

            If you want to transfer large amount of electricity, then high voltage cables are your safest bet. There are various forms of these cables, and all are used for different purposes depending upon voltage of electricity and the machines for which these are used. Three types of cables are: high, medium, and low voltage cables. Out of these, high voltage cables are used when the voltage is above 1000 V. These cables are heavily insulated to prevent any risks or hazards.

            • AC power cables

            These cables are used to transfer up to 2000 V of electricity. The composition of these cables includes cross section of cable, polyethylene insulation, and conductive material like aluminum or copper. These cables are highly flexible and work well both in low as well as high temperatures. The cable layers are fused together to avoid air seeping in, as this can cause electrical discharge, thereby damaging the insulation.

            • HVDC cables

            These are specialized cables that are designed for high voltage direct currents, and thus are called HVDC cables. If you have seen a power line, then it would be easy to understand, as a power line is also an HVDC cable. These cables are helpful in carrying large loads of electricity over longer distances. After reaching the transformer, their electricity is converted to AC form. Thereon it runs with lower voltage, and is transferred to businesses and homes.

            • X-ray cables

            These cables are used to link other high voltage cables with X ray machines. These are also used to connect high voltage cables to other scientific equipment that require higher loads of electricity. These are highly flexible cables. They have a braided cover of copper wires, and are insulated with rubber. These are fused to high voltage cable to provide safety, and to reduce the hazards of electric shocks.

            All these cables are not for home use. These are used to connect high power sources to other devices or cables. If you want to buy these cables, make sure you go for the best quality, as bad cables can lead to dangerous situations.