A full renovation is underway, who knew chasing cables in an underground base could be so easy

Get ready to test your electrical knowledge with this electrifying challenge! Dive into these 10 true or false questions and see if you can, light up the scoreboard. Are you ready to Amp up your understanding of Electrical Engineering? Let's find out!

Answers at Bottom
  1. The concept of electric fields was first introduced by Albert Einstein?
  2. You can extend battery life by storing batteries at a low temperature?
  3. The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms.
  4. The wire inside an electric bulb is known as a line wire?
  5. Copper is more conductive than Silver?
  6. The name for electric current that regularly changes direction is variable current?
  7. A circuit breaker and a fuse is the same thing?
  8. Gold is a desirable metal due to its quality of not tarnishing over time?
  9. The word electricity comes from the Greek elektron, which means amber?
  10. Nikola Tesla was the inventor of the plug Socket?

Why We Use Contactors

Firstly what is it?, well to keep it simple it's a device used for switching circuits on and off.

How Do They Work?

A contactor is essentially a switch for electricity and has three important parts:

Coil: Think of this as a magnet that loves to pull things. When we give it power, it pulls a lever.

Contacts: These are like tiny bridges. When electricity passes through they either connect (close) or separate (open).

Enclosure: This encases all the components to ensure no dust or debris comes into contact with them

When the coil is energized it opens/closes the contacts depending on how that line is configured.

Normally Open gets energized and becomes Normally Closed

Normally Closed gets energized and becomes Normally Open

What Are They Used For?

They are essential for frequently switching power in various scenarios, designed for enduring many cycles of operation. They excel in higherpower applications due to their capability to handle low voltages and currents while cycling a much higher voltage/current circuit on and off. These versatile devices can be configured to either activate a circuit (normally open) or deactivate it (normally closed). They find common use as electric motor starters, providing safety features like power cut-off, short circuit protection, overload protection, and undervoltage protection, especially in electrical vehicles.

Difference Between Contactors & Relays

Contactors and relays are like different superheroes for handling electricity. Contactors are the big, strong heroes made for heavy-duty tasks with lots of power, while relays are like the smaller heroes meant for lighter jobs. Here are some differences:

Power Handling:

Contactor: Handles big power tasks.

Relay: Deals with smaller power jobs, usually around 5A-15A.

Contact Setup:

Contactor: Usually works in a way that the circuit is only on when it gets power.

Relay: Can work with circuits on (NO) or off (NC) when powered.

Safety Features:

Contactor: Has more safety features, like spring-loaded contacts and overload protection to stop things from getting too hot.

Relay: Not as many safety features.

Size and Speed:

Contactor: Bigger, heavier, and slower.

Relay: Smaller, lighter, and faster.

Cost and Power Use:

Contactor: More expensive and uses more power.

Relay: Usually cheaper and uses less power.

So, it's like having a big, tough hero for the hard jobs (contactor) and a smaller, quicker hero for the easier tasks (relay).

We have partnered up with one of the most prestigious tool brands within the industry... Metabo.

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Drilling different types of materials comes with its challenges but it's always important to know that you are drilling the correct materials with the correct bit.

Auger & Brad Point Drill Bits

Both bits are used for timber drilling. Auger bits are really good for drilling through 2x4's for possible cables runs and brad bits are for more precision drilling typically mounted wood to walls

Tungsten Carbide Tipped DiamondShaped Bit

Typically used for ceramic tiles as it provides a clean precise cut while avoiding any cracking or chips, must drill with use of water or lubrication as excessive heat will cause damage

HSS & Cobalt Bit

HSS drill bits are allaround that can be used on materials like wood, plastic and softer metals. On the other hand, cobalt drill bits are made for tougher materials, like stainless steel and cast iron. They have more durability and can handle higher temperatures.

We all know how expensive tools can be as an Electrician so below we have highlighted our top 3 tools under £5 that are massively underrated

Deburring Tool

Typically used to clean up edges and holes on any metal or plastic work. It prevents any snagging and damaging to outer sheathing of cables, and most importantly stop us from getting them nasty splinters

Extender Magnet

Uses:

  • Removing swaf from enclosures
  • Collects dropped screws in hard to reach places

Pencil Case

Great for storing all bits and bobs and can be easily attached to any tool bag with a carabiner clip.

Thank you to everyone who entered the draw and become part of this community.

Huge congratulations to Bradley who won and hope all the tools come in handy.

  1. The concept of electric fields was first introduced by Albert Einstein? TRUE
  2. You can extend battery life by storing batteries at a low temperature? TRUE
  3. The nominal value of a brown, black, yellow, and gold resistor is 100,000 ohms. TRUE
  4. The wire inside an electric bulb is known as a line wire? FALSE Filament
  5. Copper is more conductive than Silver? FALSE
  6. The name for electric current that regularly changes direction is variable current? FALSE, it is Alternating Current
  7. A circuit breaker and a fuse is the same thing? FALSE, fuses melt, whereas circuit breakers "trip" or break the circuit, shutting off the current. They can then can be reset.
  8. Gold is a desirable metal due to its quality of not tarnishing over time? TRUE
  9. The word electricity comes from the Greek elektron, which means amber? TRUE
  10. Nikola Tesla was the inventor of the plug Socket? FALSE, Thomas Tayler Smith, a British inventor, was the first to patent a rudimentary version of the plug socket back in 1882.,

If you are interested in becoming a sponsor of the newsletter or want to be featured like Mark above please don't hesitate to reach out. Link to contact us below

Contact us here!

The material and information contained in this newsletter is for informational purpose only, you should not rely upon the material or information on this newsletter, all readers must make their own judgment and seek professional advice when making decisions based on the context of the newsletter