Home electrical wiring is essential, and every household needs careful consideration when purchasing it. Choosing wiring often presents significant challenges. Today, we'll discuss the different types of home wiring and how to identify its quality.
Classifications of Home Wiring
1. Hard Wire
Professionally known as BV wire, it's primarily used for power supply, lighting, outlets, and air conditioning. It's suitable for power plants, household appliances, instrumentation, and telecommunications equipment with AC voltages of 450/750 volts or less. Hard wire has a certain degree of rigidity, making it easier to bend and straighten.
2. Flexible Wire
Professionally known as BVR wire, it's suitable for power plants, household appliances, instrumentation, and telecommunications equipment with AC voltages of 450/750 volts or less, such as distribution boxes. Compared to hard wire, flexible wire is more complex to manufacture, and for high-frequency circuits, flexible wire has a higher current-carrying capacity.
3. Hard Wire and Soft Wire (Weak Wire)
These are composed of single or multiple copper wires. Copper wire generally refers to network cables and relatively low-voltage wire and cable.
4. Classification of Common Wire Specifications and Models
The conductor square refers to the size of the wire. Common sizes include 1.5 square, 2.5 square, 4 square, 6 square, and 10 square. The conductor square is measured in square millimeters and refers to the cross-sectional area of the wire and conductor.
How to Inspect Wire Quality
1. Check the Packaging
Ensure the packaging contains complete certifications, including complete information such as specifications, execution size, rated voltage, length, date, factory name, and address. Check for product certification and production license number; check for quality system certification; verify that the certification is standard; and check whether the wire is printed with the trademark, specifications, voltage, etc.
2. Check the Wire Size
According to the relevant scale, the wire length error should not exceed 2%, and the cross-sectional diameter should not exceed 0.02%. However, there are a large number of cases on the market where the wire is short or has a false cross-sectional area.
3. Check the copper color.
Qualified copper wire should have a shiny, purplish-red core that's soft to the touch. Fake copper wire, on the other hand, may have a core that's purple, dark black, yellow, or white.
4. Check the rubber insulation.
The insulation on fake and low-quality wire may appear thick, but in reality, it's often made of recycled plastic. If the wire is slightly squeezed, the squeezed area will turn white and powder will fall off.
5. Check the weight of the wire.
High-quality wire is typically within a specified weight range. For example, a commonly used single-strand copper wire with a 1.5mm cross-section and plastic insulation weighs 1.8 to 1.9 kg per 100 meters (the above data is for reference only).
The above information provides information on how to identify the quality of home wiring. I hope it's helpful. We all know that choosing good home wiring is crucial. The quality of the wire directly impacts the safety of our electrical use. I hope this information is helpful.
