Category Archives: Products

Tinned Copper vs Bare Copper

Bare copper is fairly resistant to corrosion, but when it is used in wet environments or places with high humidity, it can quickly become damaged.  When bare copper is operating at temperatures that exceed 100 degrees Celsius, it may start to degrade. This kind of damage can result in a loss of performance. If cost is of any concern, then bare copper is less expensive than its tinned counterpart.

By coating bare copper with a metal alloy, like tin, you can strengthen the copper’s natural properties, which will give it a longer shelf life. Also, tinned copper is easier to connect because tin is a primary component in solder. Tinned copper is better equipped to resist humidity, high temperatures and wet environments.

When considering bare copper or tinned copper wiring, the environment and cost should heavily dictate which type of wire you choose. To learn more about bare copper or tinned copper wire, contact your account manager at Distributor Wire & Cable today at 888.439.2947.

High Temp Wire: How Hot Can it Get?

We all know that high temp wire is HOT, but how hot can it really get? First, let’s look at a few of the different types of high temp wire such as, MGT, TGGT and SRML. While all of these sound like a confusing group of letters, they are actually different types of wire that each have their own temperature rating. Below is a breakdown for each wire and their unique temperature rating.

MGT:

This wire is insulated with a glass reinforced mica tape and fiberglass braid. The construction allows this wire to withstand temperatures up to 450 degrees (UL) Celsius. It is a great product for commercial and household ovens.

TGGT:

This wire uses a nickel coated copper conductor with PTFE tapes and a fiberglass braided jacket.  It is rated for a maximum temperature of 250 degrees Celsius. TGGT is a great option for commercial or industrial heating equipment.

SRML:

Also called SFF-2, SRML stands for Silicone Rubber Motor Lead Wire. This wire should not exceed 150 degrees Celsius. For something with a similar make but higher temperature rating, SF-2 uses a coarse strand construction to withstand temperatures up to 200 degrees Celsius.  These products are used for lead wires on electrical equipment in various high temperature environments.

If you are looking for the items listed above and are ready for a quote, contact your account manager today at 888.439.2947 or send us a fastQuote.

PVC v.s. Plenum

DWC Fire Alarm Cable
What to choose, polyvinyl chloride (PVC) or plenum? Consider asking yourself these simple questions to aid in the decision making process.

If the building or wire were to catch fire, does the kind of smoke produced matter?

No smoke is good for the human body to ingest, but if you had to choose… When a wire is coated in PVC and burns, it has tendency to produce Hydrogen Chloride Fumes, which can be extremely toxic. When a plenum rated wire burns, the smoke that is produced is still toxic, like any smoke, but is less toxic than the smoke produced by a wire coated in PVC.

How much are you or your customer willing to spend?

Sometimes price does matter. PVC will almost always be cheaper than a plenum rated product.  If your application allows for a PVC product, you should use it to save money.   

Where will the wire be installed?

This is the biggest driver in your product selection. For example, plenum fire alarm cable (FPLP) is required in drop ceilings to prevent toxic smoke burn off. PVC fire alarm cable (FPLR) is used in riser applications when smoke burn off is not as much of a concern. Also, you should always use plenum datacom products, such as category 5E CMP, in an air space of a residential or commercial building. Consider a PVC rated product when the product is being installed behind walls or any area where toxic smoke burn off would not be an issue.

PVC and plenum both have drawbacks and benefits. Depending on the project, one may be better suited than the other. If you still have questions about PVC v.s. plenum, be sure to contact your account manager today at 888.439.2947. If you are ready to get a quote, click here.

DWC has Aluminum URD

If you watched the video above, you already know that we added Aluminum URD to our inventory.  If you haven’t watched the video, oops! We’ve let the cat out of the bag! Our Account Managers may not have the best rapping skillz, (Seriously, watch the video!) but their quoting skillz are top-notch.  Ask yours for a fastQuote on Aluminum URD today.

Shopping for VFD and More

Robert McCord12345This month, our Procurement Manager, Robert McCord, asked us to highlight a few of the items he’s been purchasing. As you may already know, he loves to shop for wire & cable- Especially when he gets the products that can help you with your customers!

VFD– Variable Frequency Drive Cable. These cables are used to carry power from AC drive systems to AC motors, and they do it very well. In the past, armored cables were used for this process. However, VFD cables are much better at handling harsh operating conditions like high voltage spikes, amplified noise and challenging environmental conditions. They are made for high power signals and extremely high voltage, up to 2KV!

Welding Cable– This single conductor product is used on welding applications and connections between the electrode holder and clamp, to the arc welder, bus, welding box or transformer. It is extremely flexible and is heat and oil resistant. We could write a whole page about welding cable, but we’d rather show you a video about it! Click here to watch it.

Instrumentation Tray Cable– Instrumentation cables are used in 300 to 600 volt applications for process and control signals. Shielding protects the signal from electrostatic noise and cross talk. They can be installed in ducts, trays, conduit and direct buried. We’ve got a video for that too. Enjoy!

Regardless of your wire & cable needs, our procurement manager is working hard to find the perfect product to make you and your customers happy. If you have questions about any of the products listed above or any others, let him know. Send Robert an email at robertm@distributorwire.com.