NSPA’s new long neck ring terminals are IDEAL when using heat shrink tubing. The longer neck and 45° barrel design allows you to have a sealed termination without impeding the stud hole. The design also allows you to visually inspect that your wires are properly inserted before crimping.
As you can see with the two pictures below, the longer neck design (top) allows for variation of the tubing’s position and placement while still providing sufficient room for the recovered tubing to properly sealed and not impede the stud hole. Notice that the forty-five degree window allows you to see the stranded copper wire past the crimp area.
Standard terminal components were never designed to be used with heat shrink tubing and can often times block or obstruct the stud hole opening. This is illustrated in the picture below. The tubing is sealed but the tubing will likely impede a flush mount on a terminal block or screw.
This is a potential critical flaw when bare part terminals designed for PVC or Nylon are used with heat shrink tubing and stacking or mounting to a terminal block are required. In the picture below you can see the excess tubing needed to seal the area where the barrel’s throat meets the ring can prevent a flush mount to a block or when stacking terminals. This ultimately may result in less than optimal contact and potential connectivity issues. Notice how the tubing interferes with the stacked rings.
In contrast, NSPA’s new, long-neck terminals stack flush and without any impedance. Don’t risk electrical failure for your equipment and or vehicles. Ask your NSPA sales representative for information about our NEW long neck barrel rings and spades.
NSPA’s adhesive clips are designed to provide longitudinal water sealing for small wire bundles. These clips should only be used in conjunction with adhesive-lined heat shrink tubing.
Unfortunately, most adhesive-lined heat shrink tubing is designed to insulate and seal a single wire or cable. These clips will allow the installer to use standard heat shrink tubing to seal: multiple wires, non-standard wire harnesses, and plug connectors. These adhesive clips can attach to a single wire or multiple small wires.
Adhesive Clips can be added when trying to seal multiple wires.
NSPA adhesive clips come in 2 sizes: AC-1 (20-12 AWG wires) and AC-2 (16-8 AWG wires).
Check out NSPA’s most recent line of Sealed Heat Shrink connectors… OptiSeal.
OptiSeal offers a unique crystal clear opportunity to visually inspect the integrity of your electrical system.
OptiSeal offers the following visual assurances: • Ensures the wire is crimped to connector • Ensures the center of crimp barrel is properly crimped • Crystal Clear™ waterproof insulation allows for indisputable inspection of the wire’s condition
The Crimp Barrel: • Window in center of connector assures that wire is seated properly and that the wire is being crimped to the connector • Color-coded stripes identify wire gauge size to be used with connector • Color-coded stripes also indicate/guide the installer to the proper crimp position on the center of the barrel • Seamless barrel butt connectors ensure superior crimp performance • Wire-stop in butt connectors prevents over insertion of wire
The Adhesive-Lined Heat Shrink Tubing: • Crystal Clear™ tubing provides optimal clarity for visual inspection • Adhesive-Lined tubing ensures a waterproof seal • Wire gauge imprint simplifies wire size identification
If you have already made the decision to use heat shrink connectors, you are ahead in the game. However, don’t ruin your investment by using the wrong tool to crimp your connectors. The right tool will have crimp dies especially designed for insulated, heat shrink terminals. For the most consistent crimp, you should also select a crimp tool with a ratcheting crimp action. This will ensure that regardless of the end-user’s strength or size that the appropriate amount of crimp force will be applied to your crimp every time. A ratcheting crimp tool will also ensure that you do not OVER CRIMP your connector. Why is over crimping a connector bad? (Good question) When you over crimp your connector you often times actually break some of the copper strands of your wire. This can cause resistance within your electrical system. The following tool, T-R-50, is NSPA’s unique offering.
NSPA’s T-R-50 Ratcheting Crimp Tool for heat shrink terminals
In a previous blog, I touched on how big of a problem corrosion is. The next reason why you should only use sealed, heat shrink connectors is to help protect against wire pull-out. Wire pull-out is often found in areas of high vibration or where long periods of strain or pulling on your wires may occur. Connectors that are exposed to weathering and UV rays can also be susceptible to wire pull-out over time.
Electrical Failure can also occur when constant strain and/or vibration causes a wire within your electrical system to come loose.
By using a heat shrink connector, you add extra tensile strength to your crimp and/or solder termination that a standard, unsealed vinyl or nylon connector does not have.
Troubleshooting electrical failure is EXPENSIVE. Help prevent costly downtime to your electrical systems by using sealed, heat shrink terminals from NSPA today.
The biggest reason is to help prevent wire corrosion. Why is this so important? Well, because corrosion is a BIG problem. Did you know that in 2002 the U.S. Federal Highway Administration (FHWA) released the results of their two year study on corrosion and the finding were nothing less than startling.
† From their study… “Results of the study show that the total annual estimated direct cost of corrosion in the U.S. is a staggering $276 billion—approximately 3.1% of the nation’s Gross Domestic Product (GDP). It reveals that, although corrosion management has improved over the past several decades, the U.S. must ﬁnd more and better ways to encourage, support, and implement optimal corrosion control practices.”
The direct cost of corrosion in the transportation industry was estimated at $29.7 billion dollars per year. The breakdown was as follows:
Motor vehicles – $23.4 billion – 79%
Ships – $2.7 billion – 9%
Aircraft – $2.2 billion – 7%
HAZMAT transportation – $0.9 billion – 3%
Railroad cars – $0.5 billion – 2%
Ugly corrosion can have a devastating effect on your electrical system.
Using a sealed, heat shrink connector is your best defense against the expensive damage corrosion can cause to your electrical system. Please visit http://www.nspa.com to learn more about our Sealed Electrical System and Heat Shrink Connectors.
Crimp versus Solder. This age-old question goes back to our first caveman electricians. Okay, maybe not that for back, but it is a question we hear ALL the time. There really isn’t a definitive, one answer that fits everyone either. We like to think of it as a user preference. Here are some things to think about that will hopefully help you make your decision.
Are you comfortable making a solder connection? Often times, a “cold” solder joint can lead to electrical failure to do “pull-out”. Installers must wait for the wire’s strands to heat up to promote good solder flow. Typically, the bigger the wire, the longer the install time. A good solder joint will allow the solder to flow in between your wire’s strands for maximum conductivity and strength.
Do you have the right tool to crimp with? Often times installers will try to crimp a terminal with the wrong tool. This can damage the connector and can leave your connection at risk for failure. Over-crimping a terminal can actually break the copper strands of your wires causing unintended resistance and less than optimal current flow.
Whether you choose to crimp or solder… or both… always use a weatherproof, heat shrink connector. Do it Once, Do it Right!