If you are in the business of installing electrical cables and sometimes data cables, then you know that cable lugs play a very important role. Cable lugs provide a secure attachment for wires and cables to be attached to other components. They are used for floor boxes, wall plates, and junction boxes. Cable lugs come…
Knowing your colors is the key to being a successful electrician. Color codes and symbols are the way to understand what colors go where and what they mean. Without this knowledge, you could cause a fire by wiring something incorrectly or damage your appliance by installing the wrong cord. The electrical wiring color codes knowledge…
Electricity offers many advantages over other energy sources, but it also has several drawbacks. The general public uses it regularly, and many mishaps still occur, leading to burns, flames, and electrocution. The dangers and repercussions of equipment failures or wrong use have been extensively analyzed to create reliable safety devices. To utilize these devices correctly,…
In electronic devices, transistors are the most common component. Bipolar Junction Transistor (BJT) and Field Effect Transistor (FET) are the two most common varieties of transistors (FET). NPN and PNP transistors are two different types of BJTs based on their construction. We’ll talk about the differences between the two transistors in this article, so take…
In the world of machines and electronics, there are tons of acronyms that can be very confusing. One of the most common ones is PLC (Programmable Logic Controller) and DCS (Distributed Control System). They’re often used interchangeably, but they’re actually very different. So what’s the difference? Well, the differences go beyond the definitions. In this…
Even though you might have never seen one before, you most likely know what a transformer is. Transformers are those oddly shaped metal devices that are usually found near power lines, in old buildings, or on top of utility poles. In the course of their work, transformers change the voltage from the low voltage distribution…
Both an earth leakage relay and an earth fault relay are electrical protection devices used to safeguard humans and electrical equipment from earth leakage or faults. The fundamental difference between an earth fault relay and an earth leakage relay is that an earth fault relay is designed to detect a high earth fault current that…
A manual transfer switch is installed adjacent to the main service panel to replace the conventional electrical supply with power from a backup generator during a power outage. Automatic switches detect the loss of power, start the backup generator, and switch over to the backup power feed. In contrast, manual transfer switches require an operator…
Ever heard of the term “contactor” in the field of electricity and electronics? From the name alone, you can imagine it is a device that works by coming into physical contact with another. Generally, contactor is a switch that can be turned on or off by an electric current. They are commonly used in power…
It’s been a few years since you purchased your home and you’re getting ready to move. You’ve decided to rewire the house, but are wondering how disruptive the process is. The answer? It depends. What does that mean? Well, we simply mean that rewiring a house can be a messy affair, or it can be…