Tips for choosing "wire size" to be safe for use

Electrical energy can be said to be another factor that we cannot live without. Because it is energy that helps deliver various types of electrical appliances such as air conditioners. Washing machines, televisions, computers, fans, etc. to work to help facilitate us. But in order for electrical energy to be delivered to various devices, it must be transmitted through the correct type and quality wire. Another important thing that is often overlooked is choosing the wire size. Let's take a look at how the wire size affects its use. Why must we consider the size to be suitable for use together?

Reasons to choose wire size to be suitable for use

When electric current flows through a wire, it causes heat to build up inside the wire. This heat may increase to such a high temperature that it risks melting the insulation that covers the cable, deteriorating its quality, short-circuiting, and causing the cable to catch wrize fire , leading to fire house and death for both you and your loved ones. Therefore, the higher the electric current, the It is necessary to use large wires to support the electric current and help reduce the occurrence of unexpected problems.

How to choose the wire size to be safe while using it?

The choice of wire size depends on many factors. Due to the electrical system in the home Buildings of each area Including the behavior of each person's electricity usage is different, but mainly in choosing the size of the wire, it is considered from the type of wire, the current rating of the wire. Various electrical equipment, rated current numbers regarding temperature and current regarding the number of wires.

For example : If you want to find the wire size of a microwave of 2200 VA. 220 V. without continuous load. When used with THW wires, runs in a metal conduit attached to the air.

Basic calculation method : Take 2200 ÷ 220 = 10 A.

Once the amp value is obtained, the obtained value should be compared with the data in the table below.

This example should use type c. wiring that requires a THW wire size that can withstand a current of not less than 10 A, which is 1 sq. mm. However, due to the requirements of our home electricity authority. That is, use the smallest wire not less than 2.5 sq. mm. Therefore, you should choose a THW cable size 2.5 sq. mm. that can withstand a current of 18 A. And the greater the current, you should choose a wire of that size. sq.mm. more but still suitable for the calculated current.

Even so, selecting the wire size is quite a matter that requires expertise and precision. Because as you know above, it depends on many factors. For safety and to increase usage for a long time It is best to get services from experts related to electrical wiring installation.

Other considerations when selecting wires

1.Electrical cable conductor : responsible for transmitting electric current or electrical signals. They are mostly made of metals that have low electrical resistance and high electrical conductivity. Most of the time, people choose to use copper. Because it can conduct high electricity. Conducts heat well strong Not easily broken

2. Electrical insulation : Choosing electrical insulation is an important thing that you should consider when purchasing electrical wires. It is commonly used as insulation made from plastic polymers, PVC, and cross-linked polyethylene (XLPE) because they have high heat-resistant properties. strong and resists electricity well To prevent danger from electric shock and short circuit that can cause fires.

3. Types of wires : There are both low-voltage and high-voltage wires. It is also divided into many types. To select electrical wires to be installed in various locations appropriately. Seeking advice from a light system installation expert may be the best option rather than choosing and installing it yourself.

4. Electrical wires should be certified to standards : You should choose electrical wires that are certified to TIS standards, but in some brands there may be additional international safety standards such as BASEC, UL, KEMA and SGS, which standards have been certified. Accepted all over the world, so if you choose to use wires that are certified by these standards You can trust in both quality and safety. But still use it carefully. Check the electrical wiring and electrical system in the house regularly. To observe whether it is damaged, deteriorated, or too old or not. Prevent unexpected problems later.

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