Artefactos eléctricos Extensiones Eléctricas

Summary

This video delves into the different types of electrical extension cords, their usage, and key safety considerations. It covers the importance of choosing the right caliber for specific needs, explains the difference between polarized and grounded cords, and offers guidance on how to safely use extensions. Key tips include avoiding daisy-chaining cords, inspecting for damage, and using extension cords only temporarily. The video also discusses heavy-duty extension options for power tools and appliances, as well as practical safety features like automatic shut-off and cord reels. The focus is on helping users make informed decisions about electrical extensions to ensure safe and efficient use.

Takeaways

• 😀 Electric extensions come in three main categories: domestic use, heavy-duty polarized, and heavy-duty grounded polarized.
• 😀 Extension cords are available in different wire gauges, with 16 AWG being the minimum allowed for domestic use.
• 😀 The gauge (AWG) determines the wire thickness, with lower numbers indicating thicker wires. A thicker wire can carry more electrical current.
• 😀 The most common gauges for household appliances are 18, 16, and 14 AWG, but 18 AWG is no longer allowed for extensions.
• 😀 Polarized plugs have one prong larger than the other to ensure proper connection, with the smaller prong being the phase and the larger one being the neutral.
• 😀 Grounded extensions have three prongs, with the third being the ground (physical earth connection) for safety.
• 😀 Never connect multiple extension cords together. If more length is needed, buy a longer extension cord.
• 😀 Extension cords are designed for temporary use and should not be used for more than 3 months. Permanent installations should have a direct electrical connection.
• 😀 It is important to check extension cords for any cracks or damage before use, and to avoid using them under carpets or in high-traffic areas.
• 😀 Heavy-duty extensions are available in different configurations: polarized, grounded, and with higher capacity for appliances requiring more current.
• 😀 Extension cords with reels offer convenience, safety features like child-proof covers, and are available in different lengths, including 15m and 30m.

Q & A

What are the three main types of electrical extension cords discussed in the video?

The three main types of electrical extension cords are: 1) Domestic use extensions (usually white), 2) Heavy-duty polarized extensions (typically orange), and 3) Heavy-duty grounded and polarized extensions.

Why is AWG 18 no longer allowed for domestic use in extension cords?

AWG 18 is no longer allowed for domestic use because it is considered too thin and doesn't meet modern safety standards. Instead, AWG 16 is now the minimum required for household extension cords.

What does the AWG system measure, and how does the number relate to the thickness of the conductor?

The AWG (American Wire Gauge) system measures the thickness of the electrical conductor. The lower the number, the thicker the conductor. For example, a 14 AWG wire is thicker than an 18 AWG wire.

What is the significance of the polarized and grounded plugs in extension cords?

Polarized plugs have two prongs of different sizes, ensuring correct electrical phase alignment. Grounded plugs include a third prong for safety, providing an extra layer of protection by grounding excess electricity.

How can users easily identify the phase and neutral prongs in a polarized plug?

The phase prong is smaller, while the neutral prong is larger. This size difference helps identify which prong is connected to the live phase and which one is neutral.

What are the safety risks of connecting multiple extension cords together?

Connecting multiple extension cords together can increase the risk of electrical hazards such as overheating or fires, as it reduces the cord’s ability to handle the required current safely.

How long is it safe to use an electrical extension cord, and why?

An extension cord should not be used for more than 3 months. They are designed for temporary use, and prolonged use can pose risks like wear, overheating, and eventual failure of the cord.

What is the correct method for using an extension cord with high-power appliances?

For high-power appliances, choose an extension cord with a thicker gauge, such as 14 AWG. These cords are designed to handle more current and reduce the risk of overheating or damage to appliances.

What is the danger of using an extension cord under a carpet or in a high-traffic area?

Placing an extension cord under a carpet or in a high-traffic area can cause overheating, as the cord may not be able to dissipate heat effectively. This could lead to potential fire hazards or cord damage.

What features do the professional-grade extension cords offer compared to basic ones?

Professional-grade extension cords are typically made with thicker, more durable conductors (like 100% copper) and include additional features like polarized or grounded plugs, higher gauge conductors, and longer lengths for heavy-duty use.