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A “grounded” electrical device is one that connects to a grounding system for safety reasons. Grounding finds a path that’s safe or offers the least resistance for stray voltage. It ensures the stray voltage doesn’t build up in a place where it could be dangerous. Instead, you divert it to the desired path where it
Overheating in a circuit or faulty wire is the leading cause of many disasters. If you leave the wirings unchecked, you will be evacuating people from your building due to the fire that broke out. Loop impedance testing or loop testing might be a good investment option if you opt for preventive measures. Conducting the
A motor control center operates your electric motors. You can find a solid-state motor controller or overload relays to protect the engine. Furthermore, you’ll discover overload protection relays and a circuit breaker that offers short-circuit protection. Also, disconnecting control switches to isolate the motor circuit. Separate control transformers serve for the three-phase power to move
While using an electrical panel for your home supply, there is a chance of equipment damage. Besides, the problem may lead to excess power usage or catastrophic equipment failure. Hence, the Electricity at Work Regulation Act 1989. states guidelines to avoid it. Thermography testing, detection of defects is becoming popular, as the thermal image can
When lightning strikes, it creates a voltage surge. Both cloud-to-cloud lightning and cloud-to-ground lightning can result in voltage surges. Now, this voltage surge wants to equalize itself as soon as possible, and it can do so by short-circuiting your electrical equipment. For example, it can either directly hit your house or strike on a cable
Whenever any fault or electrical surge occurs in many substations, the earth absorbs all the fault current. Even while providing electricity for domestic usage, the electricians ensure a proper grounding system to maintain the flow of electric current. However, for setting up the earth system, you need to have enough soil corrosivity. How can you
What happens when the primary power source goes off? An alternate source starts operating and powers the electrical equipment. How does this happen? A transfer switch switches the electrical loads between two power sources. Sometimes, these transfer switches are manual. An operator throws the switch whenever the two power sources lose or gain power. However,
Nowadays, electronic devices are present everywhere, whether it’s a commercial building or residential spaces. That means circuit breakers, switches, relays, and other electrical connections work around the clock to prevent electrical damage. However, as long as two conductors are in contact, you can expect some resistance. And too much resistance leads to power outages and
Residual Current Devices or RCDs monitor the flow of current in electrical installation from the main power supply to the circuit. Upon detecting an imbalance current, the switches automatically cut off the current supply, thus preventing the sudden disposal of electricity that may cause electrical shock, serious injuries, or death in some cases. However, you
A power distribution system can experience different types of faults. One such abnormal electrical connection is a ground fault . The most common reason for ground fault is reduced insulation. This could be due to moisture, mechanical stresses, or atmospheric contamination. Potential consequences of ground faults are dangerous. Thus, you must be aware of them.
Using motors is a part of your work if you belong to automotive, steel, or any other heavy machinery. Indeed, these devices have made hectic tasks a matter of no time by converting electrical or hydro energy into mechanical power. Useful as it sounds, it comprises complex parts for its function. If anyone malfunctions, it
Whether it is a fastener such as a nut, screw, or electrical equipment such as an electric motor, it needs a force to turn. However, if you fasten the nut too tight, this excessive Torque can lead to stretching and, consequently, breaking bolts. On the other hand, if you provide it with insufficient Torque, it will
The insulation goes via two insulation paths – electrical resistance and capacitance. So, there shouldn’t be much leaking because of the impressive resistance levels. However, the problems occur due to wear and tear. The experts recommend limiting the length of the one-way feeder to 250ft. That’s because the capacitance goes up in long conductors, which
Have you seen a sudden blast or shock wave in a power system? Well, most of the blasts occur due to an electrical fault. Short circuit analysis is harmful to every power system. It can damage electrical equipment. It can also injure or harm the working personnel. Short circuit analysis is an important part of
Now we know the reason. About Polarity Test，You all know that in Direct Current or DC, there is a negative terminal and a positive terminal. Here, the charges move from the positive side to the negative side, and thus battery produces an electric current. This negative and positive of terminals is known as electrical polarity. However, in Alternating Current
Insulation Resistance Test Procedure，People use conductors to carry current, so they should have low resistance. However, people use the insulation of conductors to keep it confined to the wires, so it has to have high resistance. As a rule of thumb, you need common test methods to evaluate insulation integrity. Also, cable manufacturers perform Insulation
When you go with the purchase, you like reassurance that everything works smoothly. However, when you sell something, you hope that you won’t receive a nasty comment soon. But many new systems and units exhibit minor issues when you run them the first time. Whether you are a seller or buyer, it is not a
All good things have to end, and that includes the copper wire. You can’t just leave a wire hanging without proper cable termination, which is terrible for the complete and accurate transfer of both analog and digital information signals. Find the best way to terminate the ends, whether it’s a Wire Harness or a Cable
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