2026年03月09日 09時29分18秒
Technical News
In electrical systems, short circuits are one of the most common but also most dangerous faults. If just two wires touch each other or a phase wire touches ground, the current can surge suddenly in a very short time. This will cause the circuit breaker to trip, electrical equipment to stop working, and the wires may even overheat and catch fire.
During electricity usage, there are times when appliances operate less efficiently than usual. Lights may flicker unevenly, pumps may run slowly, or the inverter may display a low voltage error. One of the common causes is voltage drop.
When inspecting the grounding system in electrical cabinets, buildings, or factories, measuring the ground resistance is almost mandatory. If the ground resistance value is not met, the lightning protection and electrical protection system will not function as designed.
When renovating a house, tiling, painting walls, or buying furniture, many people need to know the room's dimensions to calculate the appropriate amount of materials. Measuring with a tape measure is manageable, but it can be quite time-consuming for large rooms or when multiple measurements are required.
Many people looking for a miniature multimeter often wonder if such a small size is sufficient for their needs. In reality, most modern mini multimeters still fully support basic measurements such as AC voltage, DC voltage, resistance, and continuity testing.
## What is a Flow Switch? **_[Flow switches][1]_**, also known as flow control switches, are devices used to detect and monitor the presence or flow rate of
The device incorporates a 6.5-digit multimeter, with a basic DC voltage accuracy of 0.003 percent per year. In full configuration, the system supports up to 120 channels and a scan rate of up to 450 channels per second when using solid-state switching modules.
In industrial environments, many people used to be reluctant to wear protective clothing because it was hot, heavy, and cumbersome to wear while working. In recent years, the design of protective clothing has changed significantly. Materials are more durable yet lighter, and the clothing is more streamlined to allow workers to move, climb, or operate machinery comfortably throughout their shifts.
It can be said that a 50-ton hydraulic jack is an indispensable “right-hand tool” in heavy machinery lifting projects, bridge and road construction, and production line maintenance.
Have you ever wondered why a magnet firmly attracts an iron bar but completely “ignores” a piece of aluminum or copper? This phenomenon originates from the magnetic properties of materials. Understanding the nature of magnetic metals is not only practical knowledge but also a critical foundation for engineers to select the right measurement equipment in manufacturing and quality control.