Choosing Tools and Techniques for Cutting Flexible Cable Conduit
When used properly, flexible conduits offer durability and protection in a wide variety of electrical wiring applications. However, the flexibility that makes these conduits useful can also pose challenges, particularly when it comes to cutting them. Incorrect cuts can damage the wires inside, cause improper fitting of connectors, and increase the risk of fire hazards. Choosing the right tools and techniques for cutting flexible conduit can help ensure that the cuts are made accurately, safely, and correctly.
Metal conduits (also known as FMC or greenfield) are made from spirally-wound, interlocked strips of aluminum or galvanized steel that form a hollow tube through which wires can be pulled. Their strength and flexibility allow them to bend around obstacles while providing strong mechanical protection. This type of conduit is typically used in dry areas, where it would be impractical to install EMT or other rigid conduits, yet the metallic strength is still needed to protect wires from physical impacts.
Flexible metal conduit is often covered with a liquid-tight jacket that prevents moisture, oils, and other contaminants from seeping into the core of the conduit and damaging the electrical wiring. This is particularly important in wet or damp locations, such as those used for powering elevators, escalators, and chair lifts, or in marine environments. The outer jackets are usually constructed of a material such as PVC or extruded thermoplastic, and some are even flame retardant. For more details please visit flexible cable conduit
Liquidtight flexible nonmetallic conduit (LFNC) is also a popular option in wet or damp locations, where the liquid-tight properties of the jacket are required to protect the electrical wiring from water. LFNC is not as flexible as metal conduits, but it can still provide sufficient flexibility to allow for easy routing and maneuvering around tight corners. The insulating materials in LFNC are also highly resistant to corrosive substances and chemicals, making them ideal for coastal or humid environments.
When choosing a specific type of flexible conduit for a project, it is crucial to determine its specific needs and how it will be installed. This information will impact the choice of conduit material, sizing, and accessories, as well as the type and length of cable or wire that can be accommodated. Additionally, it is vital to review local electrical codes and regulations to make sure that the selected conduit will comply with current standards and requirements. This is important to ensure the safety and reliability of the installation. Once the desired type of conduit is selected, it is important to accurately measure and mark the length to be cut prior to starting the cutting process. This will minimize waste and ensure that the cut is made to the correct length. It is also recommended to clamp or secure the conduit in a vise or other device to prevent movement and provide stability during the cutting process. Using a hacksaw or utility knife with a sharp blade is the preferred method for cutting flexible conduit. When using either of these tools, it is important to use long, steady strokes and to trim any excess material after the main cut is made.