In the world of electrical transmission and distribution, he concentric cables occupies a fundamental place for its safe design, efficient and versatile. This type of driver is widely used in residential facilities, commercial and industrial, especially for electric rush, Underground distribution systems and low voltage networks.
Throughout this article we will explore in depth what a concentric cable is, Its variants, applications, advantages, composition and differences compared to other types of cables. We will also address related terms such as concentric neutral cable, aluminum concentric cable y concentric bifilar cable.
What does concentric cable mean?
And concentric cable It is a type of electric conductor that is composed of a central nucleus - which acts as a phase conductor - concentrically surrounded by several thinner wires that form the neutral or a screen. This design provides a symmetric distribution of the electric field, high mechanical resistance and excellent electromagnetic shield.
The term “concentric” It comes from the fact that the wires that make up the neutral or screen are rolled in uniform layers around the main driver, forming a structure similar to a multicapa cylinder.
Concentric cable composition
And concentric electric cable It is generally composed of the following parts:
- Conductor central: It is usually copper or aluminum, solid or braided, depending on the application.
- Primary isolation: Made of materials like XLPE (cross-linked polyethylene) o PVC, Provides electrical insulation.
- External concentric conductor: It is formed by multiple copper or aluminum threads placed helically around the insulation.
- Exterior protection layer: Composed of a PVC or PE jacket, provides mechanical protection and weather resistance.
This structure allows the cable to have excellent behavior against overloads and short circuits, In addition to high reliability in aggressive environments.
Types of concentric cable: aluminum, copper and bifilar
Aluminum concentric cable
He aluminum concentric cable It is one of the most popular variants in residential and commercial applications. Thanks to its low weight and competitive cost, It is ideal for air or underground rush. Although aluminum has less conductivity than copper, Its lightness allows simple manipulation and reduced installation costs.
Advantages of aluminum concentric cable:
- Lower weight than copper.
- Lower cost per meter.
- Good behavior before corrosion if it is properly covered.
- Wide availability in the market.
Copper concentric cable
He Copper concentric cable It is preferred when greater electrical conductivity is required, Durability and resistance to aggressive environments. It is mainly used in buildings rush, banks, hospitals and industries where supply quality is critical.
Benefits of Copper Concentric Cable:
- Excellent electrical conductivity.
- Greater mechanical resistance.
- Longer useful life.
- Excellent resistance to corrosion and heat.
Concentric bifilar cable
He concentric bifilar cable It is a modality in which two drivers (Phase and neutral) They are arranged concentrically. Its design facilitates the reduction of electromagnetic interference and losses due to pelicular effect. It is used in telecommunications, Instrumentation and low current signs.
Cable applications with concentric neutral
He concentric neutral cable It is mainly used in low and medium voltage electrical distribution systems. Its configuration allows you to use neutral as well as current return and protection shielding.
Most common applications:
- Residential rush: From the post to the client meter.
- Underground distribution networks: Thanks to its protection against moisture and chemical aggressions.
- Industrial facilities: Where maximum electrical security is required.
- Three -phase systems: When combined with multiple conductors in a single wrapping.
Differences between concentric cable and conventional cable
It is important to distinguish between a concentric cable and a conventional electric cable.
| Feature | Concentric cable | Conventional cable |
|---|---|---|
| Provision | Núcleo Central + concentric threads | Independent drivers |
| Apantallamiento | Excellent | Bordered the null |
| Failure protection | Alta | Media |
| EMI interferences | Minimal | Possible |
| Cost | Slightly superior | Inferior |
| Common uses | Affected, urban networks | Internal facilities |
The concentric cable is used when safety, shielding and resistance are priority.
Concentric rush cable: Security and regulations
One of the most widespread uses of concentric rush cable It is the link between the public distribution network and the entry of energy into a property. Thanks to its design, provides high security against manipulations, leaks and short circuits.
Common regulations:
- A 21123-4 (Space): Regulate copper and aluminum cables with concentric neutral.
- ICEA S-95-658 (EU): Cover service cables with concentric driver.
- NOM-063-SCFI (Mexico): Defines characteristics for electrical cables.
Advantages of electric concentric cable
Next, We present a key list of benefits of the Electric concentric cable:
- High mechanical resistance: Its compact structure protects it from physical damage.
- Electrical security: The neutral also acts as a protective screen.
- Loss reduction: Thanks to the symmetry of the electric field.
- Interference protection: Ideal for areas with electromagnetic noise.
- Durability: Resists the weather better, moisture and UV rays.
- Easy to detect robberies: Any concentric neutral manipulation is easily detectable.
Installation and technical considerations
Although its installation is similar to that of other electrical cables, he concentric cable It has certain peculiarities:
- Neutral connection: Must be correctly landed.
- Double criminal: In splices or referrals, certified unions are recommended.
- ID: The neutral is visually identified by color or texture.
- Minimum curvature: The radius of curvature must be respected to avoid damage.
It is always recommended to consult the specifications of the manufacturer and local standards.
Conclusion: Why choose a concentric cable?
He concentric cable, either aluminum or copper, It has consolidated as a reliable and safe solution for modern electrical distribution. Its structural design provides protection, Durability and energy efficiency. Either for rush, urban networks, industrial facilities or infrastructure projects, This type of cable offers multiple advantages over traditional drivers.
Related keywords: Three -phase concentric cable, concentric neutral, concentric electric cable, concentric driver, concentric mesh cable, cable concentric neutro.
Do you want you to adapt this version for your brand or company, With calls to action or technical details of your products? I'm ready to help you with content 100% Custom and optimized for SEO. Would you also like the English version?