Price Increase Alert – Belden

Price Increase AlertMarch not only brings the changing of the seasons, it also brings changing in prices. Belden will be increasing prices on select premise cable products by 2.5% to 6.9%. This increase will go into effect starting March 21, 2017. This adjustment is due to wage inflation and rising raw material costs. This will be the first time Belden will be raising prices on this product family.

Be sure to check out our Belden Catalog online Talk to your rep or submit a Belden RFQ now to get your orders in before prices go up.

Allied Donates to Clarkson University’s Zero-Emission Snowmobile SAE Team

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This March, Allied Wire & Cable will play a part in the SAE Clean Snowmobile Challenge at Michigan Technical Institute. Allied made a donation to help the Clarkson University Zero-Emission Snowmobile SAE Team located in Potsdam, NY. The competition is conducted through the Society of Automotive Engineers. SAE encourages those involved to be innovative, including using time for networking and learning to be a sound engineer through the design and build process.

 

The Clarkson University Zero-Emission Snowmobile SAE team is a group of dedicated, undergraduate engineering students participating in an international collegiate design competition that challenges students to develop and build an electric snowmobile. The teams says this will be done by replacing an internal combustion engine with an electric motor on a stock snowmobile chassis. During the academic year, the team will be applying the principles that they have learned in the classroom and putting them towards a real world application to build a competitive snowmobile in Michigan.

 

Allied Wire & Cable donated hundreds of feet of wire to the Clarkson team for their snowmobile. Some of the wires donated  to the Clarkson team were UL 1007 Hook Up Wire of 07-22-7T, 07-16-26T and 1569-12-65T. The wire will be used throughout the entire snowmobile in every electrical aspect. For example, the areas of focus will be the controls and operation of the tractive system, the safety circuits and other components that are incorporated to ensure the vehicle is operating under safe and normal conditions. The systems also include the isolation monitoring device, battery management system, accelerator lever position sensor and brake pedal plausibility check systems. Allied’s wire products will also play a role from the low voltage control circuit to the high voltage battery pack monitoring and cell balancing.

Check back with us in March to see how the Clarkson team did in their competition!

Gel Buffer Tubes vs. Dry Buffer Tubes | Product Knockout

Product_Knockout

“Our Product Knock-out series is a match-up between two similar products. In boxing terms, think same weight class, same caliber, and same level of experience and amount of exposure. The purpose of these posts are for you to see a side-by-side view of two similar products, and to be able to understand which one will be crowned champ for your specific purposes. Take your seats and prepare for battle, because the gloves are coming out.”

It is important to define and discuss what buffer tubes are in relation to fiber optic cable before comparing and contrasting gel and dry. Buffer tubes are used in fiber optic cable to block water from getting inside the tubes and disrupting the fiber. The prevention of water is especially important in environments where the freezing of water can occur and expand, which will break the optical fiber.

What are Gel Filled Buffer Tubes?

Gel in a fiber optic cable serves as blockage of water to the cable itself. The gel fills the entire part of the tube that is not occupied by the fiber itself. In addition to blocking water from getting to the fiber optic cable, the gel also provides an additional protective layer for the fiber. It also creates cohesion between the fiber and the tube. Now, let’s talk about dry buffer tubes.

What are Dry Buffer Tubes?

Dry buffer tubes are also used to block water from reaching the core of a fiber optic cable. This is done by using materials such as strings, tapes, and foams. These materials are often treated with some kind of super absorbent polymer (SAP) within the tube. The material and SAP absorbs any water that enters the tube and blocks the tube from further water infiltration. In most conditions the SAP will dry and reactivate, which will provide long term protection to the fiber optic cable.

Gel vs. Dry Buffer Tubes

Dry and gel buffer tubes have some similarities but are mostly defined by their differences. Both types of buffer tubes are used to block water from reaching the fiber in the cable. They also both act as a filler within the tube between the outer part of the cable and the core.

The differences of the two types of buffer tubes stand out more than the similarities. To start, one is gel insulation and one is dry. The gel fills the entire tube to block water. The dry fills part of the tube and then expands to absorb the water that gets inside the cable. A slight disadvantage to dry buffer tubes is that the SAP (super absorbent polymer) may not perform the same every time water infiltrates the tube. A disadvantage of the gel is that it is messy when a cable is spliced and requires cleaning. The dry buffers require no cleanup, which makes for easier cutting and splicing. However, when it comes to the gel, it stands up better to things such as salt water, where the dry will break down over time if repeatedly exposed to salt water.

buffer-tube-types, gel buffer tubes, dry buffer tubes, gel, dry

Gel vs. Dry

Winner by unanimous vote? Instead, it seems as if the match has ended in a technical decision.
In this case it looks like our crowned champ depends on your specific application use.

If you’re unsure about what cable or what kind of buffer tube you’ll need in order to meet the needs of your application, consult with one of Allied’s knowledgeable sales reps by submitting an RFQ. Visit our website to learn more about fiber optic cable and all of our Prysmian/Draka Group products.

Single Mode vs. Multi Mode | Product Knockout

Product_Knockout“Our Product Knock-out series is a match-up between two similar products. In boxing terms, think same weight class, same caliber, and same level of experience and amount of exposure. The purpose of these posts are for you to see a side-by-side view of two similar products, and to be able to understand which one will be crowned champ for your specific purposes. Take your seats and prepare for battle, because the gloves are coming out.”

Before this post gets into the compare and contrast of single-mode and multi-mode, it’s important to know what a mode is. To put it simply, a mode is the path that a light beam travels down the fiber. Single-mode and multi-mode both feature a core that allows light to travel down the center of the fiber and carry signals. However, the differences outweigh the similarities, so let’s take a closer look at the differences in these two kinds of cables.

What is Single-Mode Fiber?

Single-mode fiber optic cable is the simplest type of optical fiber. Signals that are in a single-mode fiber travel straight down the center of the core without bouncing off the edges. This type of mode is also very small with a very thin core. The core of a single-mode fiber optic cable is 5-10 microns in diameter which translates to millionths of a meter. Single-mode fiber optic cable is wrapped together in a large bundle and used in telephone signals, cable TV and internet applications. The signal from a single-mode fiber optic cable can travel over 100 km (60 miles). In single-mode fiber optic cable the MFD (mode field diameter) is large and easy to splice/connect. This also makes it sensitive to microbends. Microbends describe the source of signal loss or attenuation in fiber optic cable. 

What is Multi-Mode Fiber?

Multi-mode fiber is a more complex type of optical fiber. These fibers are larger than single-mode fibers at roughly ten times the diameter.  This size allows light beams to travel through the core by a variety of different paths/modes.  These paths can be straight through the core, or the light can be bounced off the edges. Multi-mode cables are used in applications where short distances are used, such as linking computer networks.

Single-Mode vs. Multi-Mode Fiber

When comparing single-mode and multi-mode fiber, the only real similarity between them is that they are both ways to send fiber optic signals.

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Single-mode vs. Multi-mode

Single-mode is smaller and used in applications where a signal needs to be sent great distances. In contrast, multi-mode is used in applications where short distances are being used. Single-mode only allows one signal to be sent straight down the core of the fiber, where multi-mode allows multiple signals to be sent and bounced off the edges of the core. In single mode fiber optic cable the MFD (mode field diameter) is larger than in multi-mode due to the core sizes. In single-mode the core is smaller, so the MFD is larger, where in multi-mode the core is larger which means the MFD is smaller. 

Winner by unanimous vote? Instead, it seems as if the match has ended in a technical decision.
In this case it looks like our crowned champ depends on your specific application use.
If you’re unsure about what cable or what mode you’ll need in order to meet the needs of your application, consult with one of Allied’s knowledgeable sales reps by submitting an RFQ.
Visit our website to learn more about fiber optic cable and all of our Prysmian/Draka Group products.

Allied Encyclopedia: UL 3257 Wire

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What is UL 3257 Wire?

What is the name of the high temperature and high voltage rating ignition wire may be used for internal wiring in gas-fired heaters? The one and only UL 3527! In this post we will be discussing how UL 3527 is constructed, how it is used and what makes it unique. Let’s take a look!

Construction:

UL 3257 is a single conductor wire, often referred to as hook up wire or lead wire. UL 3257’s conductor is constructed of stranded nickel plated copper, and is available in a AWG range of 22 AWG to 12 AWG. The insulation of UL 3257 is created from extruded SR, silicone rubber. The most common insulation color of UL 3257 is red but it is available in other colors. The insulation thickness of UL 3257 is thicker than most other wires in its AWG range, with 78 mils min average and 70 mils min at any given point, giving UL 3257 a high voltage rating of 10KV AC to 25KV DC.

The temperature rating of the UL 3257 ignition wire runs from -80°C to 250°C.  UL Style 3257 ignition wire passes the UL horizontal flame test and is covered under the UL Standard Appliance Wiring Material (AWM) Subject 758.

UL 3257 is available in sizes 36-42 AWG as resistance wire, which is spirally wound around a fiberglass core. UL 3257 is approved to be made with an optional covering of treated glass braid, the same covering found on SF-1 Wire.


Application:

This wire can be used for the internal wiring in gas-fired heaters and furnaces where it is protected from damage during handling, installation and servicing. Oil-burner ignition circuits and gas appliance ignition systems are other areas that UL 3257 is utilized in and is not subjected to flexing.

For more information about UL 3257 please visit our catalog page. To request a quote on UL 3257 ignition wire  visit our Quick RFQ form or call one of our experienced sales reps today at 1-800-472-4655!

 

New Kits for LMR-195 EZ and LMR-200 EZ X Connectors

New Kits for LMR-195 EZ and LMR-200 EZ X ConnectorsWe are excited to announce the newest addition to the Times Microwave LMR product line – The WSB-195-200 kit. The WSB-195-200 kit is compatible with the LMR-200 EZ X and LMR-195 EZ series crimp connectors. Each kit includes: ten pieces, a WSB flexible silicone boot strain relief/weatherproofing kit to replace older methods, easy hand assembly to save time in the field, no heat requirement and is RoHS, REACH and I967 compliant. Contact your sales rep to request a quote for the WSB-195-200 kit for your LMR-200 EZ X and LMR-195 EZ series crimp connectors today!

ETFE vs. XL-ETFE | Product Knockout

Product_Knockout“Our Product Knock-out series is a match-up between two similar products. In boxing terms, think same weight class, same caliber, and same level of experience and amount of exposure. The purpose of these posts are for you to see a side-by-side view of two similar products, and to be able to understand which one will be crowned champ for your specific purposes. Take your seats and prepare for battle, because the gloves are coming out.”

ETFE and XL-ETFE are both common insulation materials used in wires for the aerospace industry. Aerospace wires are used in tough applications where severe temperatures are encountered. Both ETFE and XL-ETFE are thermal aging, solder and moisture resistant. These materials are used as insulation in slants within M22759 military wire. MIL-W-22759 has since been replaced with the classification SAE AS22759, however it is still commonly referred to by it’s mil-spec call out. The slants that will be compared in this post are /16-/19 which use ETFE and /32-/35 which uses XL-ETFE. These aerospace wires, for the most part, are very similar. Let’s take a closer look.

What is ETFE?

ETFE is an acronym for Extruded Ethylene Tetrafluoroethylene. It is wire insulation used primarily in electronic aerospace and transit applications. These applications usually call for cable that is mechanically tough and flame retardant, as well as lightweight. The MIL Spec slants using this insulation are M22759/16-/19. These slants are primarily used in aerospace/aircraft applications where military specifications are needed.  Below is an expanded table on these slants.

Slant Conductor Insulation Voltage Temp. Rating
M22759/16 Stranded Tinned Copper ETFE 600V 150°C
M22759/17 Silver Plated Copper Alloy ETFE 600 V 150°C
M22759/18 Stranded Tinned Copper ETFE 600V 150°C
M22759/19 Silver Plated Copper ETFE 600V 150°C

What is XL-ETFE?

XL-ETFE is an acronym for Cross Linked Extruded Ethylene Tetrafluoroethylene. It is wire insulation that is used primarily in avionic and airframe applications. These applications typically demand mechanically tough and flame retardant cable. In addition, XL-ETFE, a type of thermoset insulation, provides excellent fluid/oil/moisture resistance. Cross linking also creates increased stability at higher temperatures. The MIL Spec slants that use XL-ETFE are M22759/32-/35. Below is an expanded table on these slants.

Slant Conductor Insulation Voltage Temp. Rating
M22759/32 Tinned Copper XL-ETFE 600V 150°C
M22759/33 Silver Coated High Strength Copper Alloy XL-ETFE 600V 200°C
M22759/34 Tinned Copper XL-ETFE 600V 150°C
M22759/35 Silver Coated High Strength Copper Alloy XL-ETFE 600V 200°C

ETFE vs. XL-ETFE Aerospace Wire

As you can see, there is some overlap between ETFE and XL-ETFE insulated wires. Both are aerospace wires with a voltage rating of 600V, use similar conductor material, and meet military specifications.

Even though ETFE and XL-ETFE are similar, they do have some very noticeable differences. The main difference being that one is cross linked and the other is not. The cross linking in slants /32-/35 when using silver coated/plated copper alloy as the conductor, give them an overall higher temperature rating than slants /16-/19. Slants /16-/19 with silver coated/plated copper alloy are rated to 150°C, while in slants /32-/35, those that use silver coated/plated copper alloy are rated to 200°C. Cross linking also provides greater stability at these higher temperatures than its regular counterpart.

etfevsxl_etfe

ETFE vs. XL-ETFE

Winner by unanimous vote? Instead, it seems as if the match has ended in a technical decision.
In this case it looks like our crowned champ depends on your specific application use.

If you’re unsure about what cable you’ll need in order to meet the needs of your application, consult with one of Allied’s knowledgeable sales reps by submitting an RFQ.
Visit our website to learn more about ETFE Wire vs XL-ETFE Wire.

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