Do you know what makes an excellent electrical cable? How do you choose the suitable cable for your needs? What are the benefits of using flexible multi-strand covered copper cable? You have come to the right place if you are curious about these questions.
In this blog post, we’ll discuss the various types of copper wires in the market and highlight the benefits of using flexible multi-strand covered copper cables from Rational Engineers.
What are the types of copper wires?
Copper is one of the most common and widely used metals for electrical wires. Copper wires have high conductivity, durability, and corrosion resistance. Copper wires can be categorized based on shape, size, and flexibility. Some of the common types of copper wires are:
- Bare copper wire:
This is a single strand of copper metal wire without any coating or insulation. Bare copper wire is a high-quality electricity conductor in electronics and electrical appliances. It is also known as “electrolyte copper” because it is 100% pure and cadmium-free.
- Solid copper wire:
This is a single strand of copper metal wire surrounded by an insulator, such as plastic or rubber. Solid copper wire is typically used as magnet wire in motors and transformers. Compared to other wires, it is rigid, does not bend easily, and is usually installed in permanent, frequently handled, low-flex applications.
- Stranded copper wire:
Stranding combines copper wires bunched or twisted together. It is more flexible and easier to install than solid copper wire of the same cross-section. Stranding enhances the life of the wire in applications with vibration, such as automobiles and appliances.
- Braided copper wire:
This stranded copper wire is woven into a flat or tubular shape. It is a flexible connector for electric appliances, stoves, and storage batteries. Braided copper wire can be manufactured according to customer drawings and requirements.
What is a flexible multi-strand covered copper cable?
Flexible multi-strand covered copper cable is an electrical cable with multiple strands of copper wires covered with various paper types. Paper is an insulator and a protective layer for the copper wires. It can also provide additional properties like thermal, fire, and moisture resistance.
Some of the common types of paper used for covering copper wires are:
- Kraft paper
Kraft paper is a strong, durable, and economical paper made from wood pulp. It covers copper-stranded and braided wires and can withstand high temperatures and mechanical stress.
- Crepe paper
This type of paper has a wrinkled or crinkled texture, giving it more flexibility and elasticity. Crepe paper is used for covering flexibly stranded and braided copper wires. It can accommodate the bending and twisting of the wires without cracking or tearing.
- Nomex paper
This paper is made from synthetic fibres, which have high thermal stability, flame resistance, and chemical resistance. Nomex paper is used for covering Nomex Covered Copper Conductors, which are high-temperature and high-voltage copper wires. It can resist temperatures up to 220°C and voltages up to 36 kV.
- Semiconductive tape
This type of tape is a thin layer of carbon or graphite, giving low electrical resistance. It covers copper wires exposed to high electric fields, such as transformers and generators. Semiconductive tape can also reduce the corona effect and electricity discharge from sharp edges or points.
- Polyester tape
Polyester tape is made from synthetic fibres and has high tensile strength, abrasion resistance, and moisture resistance. It covers copper wires subjected to mechanical stress, such as cables and wires, and can protect the wires from damage and corrosion.
- Cotton yarn
Cotton yarn is made from natural, highly soft, flexible, and absorbent fibres. It covers copper wires for low-voltage and low-frequency applications, such as telecommunication and instrumentation. Cotton yarn can provide a cushioning effect and reduce noise interference.
Rational Engineers: The Leading Supplier of flexible multi-strand covered copper cables
Flexible multi-strand covered copper cable is a product of Rational, a leading manufacturer and supplier of electrical cables and wires. Rational offers various flexible multi-strand covered copper cables with different specifications and applications. Some of the common types of flexible multi-strand covered copper cable from Rational are:
- Double cotton-covered cable
This flexible multi-strand covered copper cable has two layers of cotton yarn over the copper wires. Double cotton-covered cable is used for low-voltage and low-frequency applications, such as telecommunication and instrumentation. It has good flexibility, softness, and noise reduction.
- Paper-covered cable
This flexible multi-strand covered copper cable has one layer of kraft paper over the copper wires. It is used for medium-voltage and medium-frequency applications, such as power transmission and distribution. Paper insulated copper cable has good strength, durability, and economy.
- Double paper-covered cable (DPC)
This flexible multi-strand covered copper cable has two layers of kraft paper over the copper wires. It is used for high-voltage and high-frequency applications, such as transformers and generators. It has good thermal, mechanical, and corona resistance.
- Triple paper-covered cable (TPC)
This flexible multi-strand covered copper cable has three layers of kraft paper over the copper wires. Triple paper-covered cable is used for extra-high-voltage and extra-high-frequency applications, such as power plants and substations. It has excellent thermal, mechanical, and corona resistance.
- Cotton braided cable
This flexible multi-strand covered copper cable has a braided layer of cotton yarn over the copper wires. It is used for flexible and movable applications, such as electric appliances and stoves. Cotton braided cable has high flexibility, softness, and cushioning effect.
- Semiconductor paper-covered cable
This flexible multi-strand covered copper cable has a layer of semiconductive tape over the copper wires, followed by a layer of kraft paper. It is used for high-voltage and high-frequency applications, such as transformers and generators. It has high corona, flame, and chemical resistance.
- Polyester covered cable
This type of flexible multi-strand covered copper cable has a layer of polyester tape over the copper wires, followed by a layer of kraft paper. Polyester-covered cable is used for high-stress and high-moisture applications, such as cables and wires. It possesses exceptional tensile strength and is highly resistant to abrasion and moisture.
What are the advantages of using flexible multi-strand covered copper cable?
Flexible multi-strand covered copper cable is a versatile and reliable product that can meet various electrical needs and requirements. Some of the advantages of using flexible multi-strand covered copper cable are:
- Flexibility
Flexible multi-strand covered copper cable can bend and twist without breaking or damaging the copper wires. This makes it easy to install and use in different situations and environments. flexible multi-strand covered copper cable can also reduce the stress and strain on the copper wires, extending their life span and performance.
- Protection
flexible multi-strand covered copper cable can provide insulation and protection for the copper wires. This can prevent the copper wires from short-circuiting, overheating, or corroding. flexible multi-strand covered copper cable can shield the copper wires from external factors, such as temperature, humidity, fire, and noise.
- Quality
flexible multi-strand covered copper cable is made from high-quality copper wires and paper materials. This ensures that the cable has high conductivity, durability, and resistance. flexible multi-strand covered copper cable can maintain its shape and function over time without losing efficiency or effectiveness.
- Variety
flexible multi-strand covered copper cable is available in different sizes and specifications. This allows the customers to choose the best cable for their specific needs and applications. flexible multi-strand covered copper cables can also be customised according to the customer’s preferences and requirements.
A Partnership that Electrifies
Rational’s story is more than copper; it’s about a lineage, a collective, and a hope for the future. And it’s a story that links with another industry leader – Gemini Instratech, the Instrument Transformers Manufacturers.
Rational and Gemini have something in common – a devotion to metal quality. They are collaborators in advancement, their skill and loyalty powering the electrical system of myriad households and businesses.
Conclusion
Flexible multi-strand covered copper cable is a product of Rational, a leading manufacturer and supplier of electrical cables and wires. It consists of multiple strands of copper wires covered with various paper types. flexible multi-strand covered copper cable has many advantages, including flexibility, protection, quality, and variety. It can be used for various purposes, such as power transmission.