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Electrical and electronic

Buying gold on the day of the God of Wealth: things you should know to buy for good luck and peace of mind.
2026년 02월 26일 09시 56분 53초

On February 26th, the gold market reached its peak as the God of Wealth Day (the 10th day of the first lunar month) is always considered the time of year when most people buy gold. From early morning, the number of customers on gold trading streets increased rapidly compared to normal days. Some bought gold for good luck at the beginning of the year, while others took advantage of the opportunity to hoard it with spare money after Tet.

How to hang feng shui paintings during Tet beautifully and straight without being visually unbalanced?
2026년 02월 13일 13시 39분 27초

At the end of the year, after the house has been cleaned, many families begin to think about replacing the paintings in their living room. Some choose gilded paintings of horses galloping to success to bring good luck at the beginning of the year. Others prefer traditional bronze paintings for their luxurious and cozy feel. Kindergartens often choose modern canvas paintings hung in sets for a harmonious look.

Tightening alcohol concentration checks during the 2026 Lunar New Year holiday
2026년 02월 10일 14시 49분 54초

During the 2026 Lunar New Year holiday, authorities will continue to intensify inspections and enforcement against alcohol-related violations nationwide. This period sees a surge in travel, social gatherings, and celebrations, which increases the risk of traffic accidents if drivers consume alcohol before operating vehicle

Tips for Using a Clamp Meter to Check Household Electrical Loads During Tet
2026년 02월 10일 09시 50분 52초

As Tet gets closer, more electrical appliances in the house tend to be used at the same time. The kitchen is almost always lit up, with induction cookers, electric hot pots, and kettles taking turns running from morning until night. In the living room, decorative lights are added, the TV stays on for hours, and some households even turn on speakers to make the atmosphere livelier. All of these are familiar everyday items, but when they are concentrated into just a few busy days, the home electrical system has to operate very differently from normal.

What is the acceptable grounding resistance value for a lightning protection system?
2026년 02월 09일 15시 11분 52초

When installing lightning protection or completing electrical systems for houses and factories, the most frequently asked question is: what is the acceptable grounding resistance? This number is not just for reference; it is directly related to the level of safety when leakage current or lightning surges reach the ground.

Is the Keysight 34465A suitable for laboratory measurements?
2026년 02월 07일 11시 07분 01초

The Keysight 34465A is commonly found in laboratories and product testing areas where repeated monitoring of electrical signals is required. This model is suitable for comparing results between different samples or observing subtle changes in signals over time.

03 How to measure network bandwidth? Differentiating between internet speed and bandwidth
2026년 02월 03일 13시 44분 48초

Stable internet access is becoming a basic necessity for both individuals and businesses. When the network is slow, file downloads take a long time, online meetings are choppy, or internal systems are frequently congested, measuring bandwidth will help identify whether the problem lies with the internet service provider's connection or the internal network infrastructure.

10 important considerations when using frequency converters in industry.
2026년 01월 16일 09시 41분 58초

Variable frequency drives (VFDs) are increasingly common in modern factories, workshops, and electromechanical systems. These devices allow for more flexible motor speed control, reduced energy consumption, and minimized mechanical wear. However, proper usage is crucial for the stable and long-lasting operation of VFDs. Below are some important considerations to keep in mind when integrating VFDs into industrial systems.

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