Metal Clad Cable

Introduction

In an era where technology and infrastructure are rapidly evolving, the need for durable, cost-effective, and adaptable solutions is paramount. One such solution is the use of Metal Clad (MC) Cable in various applications across commercial, industrial, and residential settings. This article delves into the world of MC cables, exploring their components, types, and the significant advantages they offer. From their durability and longevity to their safety features and cost-effectiveness, MC cables present a compelling case for their use. Moreover, their adaptability to technological advancements and sustainability make them a future-proof choice for your projects.

Understanding Metal Clad Cable

Metal clad (MC) cable is a versatile and durable choice for various applications, including service, feeder, and branch circuits across commercial, industrial, and residential settings. Enclosed in a corrugated metal sheath or interlocking metal tape, MC cables are factory-assembled and can include one or more insulated conductors. They are suitable for use in hazardous locations, healthcare facilities, theaters, assembly plants, and power and lighting control. Despite its aluminum armor, it can also be used in wet locations with a PVC jacket for protection.

Components of Metal Clad Cable

A metal clad cable is a factory-assembled cable where conductors are enclosed in a corrugated metal sheath or interlocking metal tape, and insulated. It can include one or more insulated conductors, including one full-size ground wire, and features one of several types of armor sheathing. For most applications, the typical MC cable will range from #14 to #10 AWG but can be as large as 2,000 MCM in some cases.

Types of Metal Clad Cable

A metal clad cable is a factory-assembled cable where conductors are enclosed in a corrugated metal sheath or interlocking metal tape, and insulated. It can include one or more insulated conductors, including one full-size ground wire, and features one of several types of armor sheathing. The typical MC cable will range from #14 to #10 AWG but can be as large as 2,000 MCM in some cases. They are differentiated by different jacket colors, indicating the voltage the application will require.

Advantages of Using Metal Clad Cable

Metal-clad (MC) armored cable constructions are a cost-effective alternative to traditional pipe and wire, offering significant cost savings by eliminating the need for electrical conduit and the labor required for installation. Contractors who use armored cable require limited pulling equipment, fewer reels, no specialty cutting or bending tools, and less time setting up pulls. These advantages can mean significant savings in material and labor costs. Furthermore, contractors can easily identify opportunities for armored cable as it can be used in any application where typical pipe and wire is installed.

Durability and Longevity

Metal clad cables are designed to withstand harsh conditions, making them a durable and long-lasting solution for various applications. The protective metal casing around these cables ensures their longevity, even when exposed to extreme pressures or harmful substances. For instance, steel wire armor, one of the strongest types of MC cable, is protected by strands of galvanized steel layered around the wire, making it a great choice in industries where the wires are pushed to the limit. This high level of strength and durability makes metal clad cables a reliable choice for long-term use.

Safety and Fire Resistance

Metal-Clad (MC) cables offer a 2-hour resistance rating, serving as both mechanical protection and a ground path. These cables meet the requirements for 2-Hour Fire Rating, supporting firefighting operations and ensuring the safe egress of occupants. MC cables have been certified under guidelines for 2-hour fire resistive cables for use as FHIT system 120. They offer ease of installation over other methods of providing Fire Rated Circuits where required by codes and standards.

Ease of Installation

Working with Metal-Clad (MC) Cable is relatively straightforward. It's easier to handle than rigid conduit and offers protection from various hazards. Cutting the armor without damaging the wires is a crucial part of the process, best achieved using an armored cable rotary cutter. Installing the connector into the box first can simplify the process. Additionally, using fixture, appliance, and air conditioner whips can save time as they come pre-installed with wires and connectors. Lastly, when removing a section of armor to expose the wires, a simple twist and pull technique is recommended.

Cost-Effectiveness Over Time

MC Cables are a cost-effective solution for electrical installations. They are relatively cheaper compared to pipe and wire installations, which is why many builders prefer them. The absence of pull-boxes and conduits means installations come with less material costs and labor outlay. Additionally, their easy installation eliminates the tedious conduit pre-installation before wire pulling, saving time and manpower. Therefore, Metal Clad Cables not only provide an economical alternative upfront but also ensure cost-effectiveness over time.

Future-Proofing Your Project with Metal Clad Cable

Metal-clad cable is a future-proof solution for your projects. Its flexible armor, usually made from aluminum, protects the insulated wires within, ensuring durability and longevity. The use of MC cable also allows for adaptability to technological advancements. For instance, Flexible Metal Conduit (FMC) gives you the option of pulling and protecting more than one circuit in the same conduit, and even adding wires in the future, something you can't do with regular MC cable. This makes MC cable a sustainable choice with a low environmental impact, as it reduces the need for replacements and upgrades.

Adaptability to Technological Advancements

The global metal clad cable market is expected to witness steady growth in the coming years, driven by increasing urbanization, infrastructure development, and the need for reliable electrical installations. Technological advancements and the focus on energy efficiency and sustainability will shape the market landscape, offering new opportunities for industry participants. With advancements in technology and the growing emphasis on energy efficiency, market players need to adapt to changing market dynamics and invest in innovation to stay competitive.

Sustainability and Environmental Impact

Metal Clad Cable, offers significant sustainability and environmental benefits. Its durable metal sheathing resists puncture by nails, screws, and even rodents, reducing the need for costly and wasteful repairs. Furthermore, it shields electric fields, which can contribute to a healthier living environment. While it is more expensive upfront, its durability and protective features can result in cost savings over time, making it a sustainable choice for residential wiring.

Case Studies of Successful Implementations

One case study of successful implementation of Metal Clad Cable is seen in a laboratory building. Despite initial challenges with terminal block failures, the use of MC Cable has been optimized by creating a hybrid system. Home run conduits are extended to different quadrants, with MC Cable used for runs into walls or fixtures beyond 6 feet. This approach has proven effective in managing frequent equipment changes in the lab, saving time and effort for the maintenance team.

Conclusion

In conclusion, Metal Clad Cables offer a robust, cost-effective, and future-proof solution for various applications. Their durability, safety features, and ease of installation make them a preferred choice over traditional pipe and wire systems. Moreover, their adaptability to technological advancements and sustainability credentials further enhance their appeal. The use of MC cables not only ensures a reliable and efficient electrical installation but also contributes to a healthier living environment. With successful implementations already in place, the future of MC cables looks promising, poised to shape the landscape of electrical installations in the years to come.