The electric wire is the product that is familiar to everyone because of its importance in transmitting energy for living, working in offices, and houses. Despite being common, the basic information of these wires, the use of each type is not well understood. In this article, Tran Phu will give you brief knowledge to understand more about wiring.
How many types of electrical conductors are there?
For each criterion, we will have different ways of classifying civil wires. Here are the current common ways of classification:
- Classified by characteristics of conductive core:
+ Hard conductor: consists of 1 core or multiple cores
+ Soft conductors: many soft strands twisted together
- Classified by the number of cores:
+ Single conductor: has 1 core
+ Double conductor: has 2 cores
+ Triple core conductor cord
- Classified by the cross-section: the selected section depends on the load capacity. The larger the section, the higher the capacity. It typically ranges from 0.75 mm2 to 6 mm2.
- Classified by the shape of the sheath
+ Round wrapped conductor
+ Oval conductor
Common types of electrical wires
With the purpose to transmit electricity inside the building, we often use these following electrical wires:
Rigid single-wire: the wire with a single copper core and PVC insulated.
Conductor, 1 copper strand
PVC Insulated
Flexible single-wire: the wire with copper conductors twisted together and PVC insulated.
Conductor, multi copper strands
PVC Insulated
Flat flexible 2-core wire: the wire with 2 conductors, each conductor of copper twisted together, these two conductors are coated with PVC and stuck together to form a flat wire with 2 insulated conductors in parallel.
Conductor, multi copper strands
PVC Insulated
Twisted flexible 2-core wire: It is the twisted wire from 2 separate single soft wires.
Conductor, multi copper strands
PVC Insulated
Round flexible 2-core wire: the wire consists of 2 separate soft wires that are twisted or placed in parallel and then wrapped outside of the PVC coated layer.
Oval flexible 2-core wire: the wire with 2 separate single flexible wires (VCm) that are twisted or paralleled and wrapped outside with a PVC coated protection.
Conductor, multi copper strands
PVC Insulated
PVC sheath
Rigid single-wire, aluminum conductor: the wire with an aluminum conductor and PVC insulated.
Conductor, 1 aluminum strands
PVC Insulated
Copper conductor, PVC insulated wire: the wire with 7 (or 19) copper conductors are concentric twisted, wrapped with PVC insulation.
Conductor, 7 copper strands
PVC Insulated
Note when choosing to buy civil wires
- Do not choose the wire without labels, manufacturer name, nor clear address on the packaging. At the same time, the priority should be to choose using lead-free PVC insulated products (LF-CV), which are harmless to humans and the environment.
- Do not choose the wire that does not include basic information such as brand, type of wire, cross-section, conductor structure (number of threads, and diameter of each thread), production standards.
- Good insulation plastic wire, when plucked out of the conductor, can be stretched twice or triple the original length without breaking. The wire may be bent multiple times or twisted into knots without cracking the insulating surface.
- The conductor can be checked, by counting the number of internal threads compared to the number of recorded threads. The diameter of the inner thread is very difficult to check since a specialized ruler is required to measure. However, with a reputable brand, the specific conductor structure (the number of threads and the diameter of each one) can be trusted.
- Normally, good wires cost more than poor-quality wires of the same size.
Related posts:
Address to buy genuine Tran Phu wire and cable
Safety standards for Tran Phu electric wires and cables
Nowadays, there are many indistinct origin electrical products on the market, therefore, we need to be extremely careful when choosing to buy. Accompanying with Vietnamese consumers for the past 36 years, Tran Phu wire and cable proudly bring our customers products that meet the following criteria: good conductivity, power saving, safety in using electricity through the system distributed by the agent network throughout the country.
CONTACT INFORMATION:
Tran Phu Electric Mechanical Joint Stock Company
Address: No. 41, Phuong Liet Str., Phuong Liet Ward, Thanh Xuan Dist., Hanoi.
Hotline: 0898.41.41.41
Email: contact@tranphu.vn
Website: www.tranphu.com.vn