Cable Entry Systems
Enclosure cable entry is a very important part of every cable management setup. It is especially important when there are electrical cabinets, control cabinets, or any other enclosures that house electrical equipment involved. If the cable entry system is working right, it will do a very good job of keeping the cables organized, protected, and easily accessible.
One example of this is found with modular cable entry systems, in which the frames are constructed of robust materials, such as stainless steel, and come in different sizes that are compatible with various enclosures. These frames use circular cable entry plates or, when feasible, an entire cable entry frame.
Circular cable entry plates are plates that fit into a frame with a hole in the middle and allow the cables and wires to “pass right on through” to their respective internal terminations. The cable frame is another part where one can add holes while still preserving the structural integrity of the enclosure itself. Another critical component of many cable entry systems are cable glands, which serves as a strain relief element and ensures a tight fit around individual cables with the enclosures themselves.
Products
FAQs
Can cable entry systems allow for terminated cables, non-terminated cables and pre-assembled cables to enter one opening in junction boxes while still providing strain relief?
Yes, cable entry systems can allow for terminated cables, non-terminated cables, and pre-assembled cables to enter one opening in junction boxes while still providing strain relief and maintaining a secure, organized, and protected entry point.
Control Panel Fabrication: Best Practices
Use a larger enclosure whenever possible.
This allows room in the panel design to properly space all of the hardware and to install larger wire ducting. Panels that have ample space tend be me more organized, while panels that have everything crammed into a small space tend to be more difficult to work in and are often less organized.
Tap holes instead of using self-tapping screws.
It is common for panel builders to use self-tapping screws to save time during the fabrication process. While it can save time, this type of fastener does not always provide the consistent, strong connection that may be needed for the mounted hardware. This is especially true when hardware may need to be removed at some point and then later reattached. Holes that have been tapped prior to hardware installation will offer a stronger, more consistent connection point that will last longer.
Ensure that wire ducting is large enough.
It is very easy to undersize wire ducting when designing a panel. It is important to always plan for wire ducting to have extra room available once all wires have been run through it, including field wires.
When in doubt, label it.
It is a very good practice to label wires in a control panel, but it is not always required to label the other types of hardware in the panel to meet code. It is important to understand that any operators that may access this panel at a later date may not understand what the hardware in the panel is intended for. To make the panel is as safe as possible, and to allow operators to function in the panel more efficiently, it is a good idea to label everything that may come into question.