Ever wondered why some plugs have 2 prongs while others have 3? Well, it is all about safety! Electricity must flow in an uninterrupted circuit. Electrocutions often occur in homes due to defective products, such as appliances, power tools, and improper wiring. Children are particularly susceptible to electrocution not only because of their never ending curiosity but also because they can sense an electrical current as low as 0.006A (6mA). Faulty installations or repairs can also result in electrocution and are a primary cause of electrical accidents at home.
Take a look at your home outlets for instance, the right smaller slot is for the HOT wire, this is where electricity comes from; the left wider slot is for the neutral wire, this wire completes the circuit and feeds the electricity back into the system.
Implement this idea into a larger power distribution system and you’ve created a huge problem. If excess voltage is applied to the circuit, like a lightning for example, all the excess energy must travel through your electrical network, potentially exploding everything connected to it. To prevent this, a third ground wire is connected straight to your breaker enclosure and is driven straight to the earth. Now when a lightning strikes into your system, the excess energy is directed into the land instead, but we have now created another problem. Before all of this, the only way to be shocked is when you touched both the neutral and hot wires, in that case your body would close the electrical circuit and the voltage would travel through you, from one wire to the other. Now, because of grounding, half of the electrical system is always indirectly connected to you, through your feet. Meaning you only need to touch a single wire or a metal object electrified by one to become an unfortunate circuit. This is why some appliances have the third prong. It is a safety feature for devices with metal cases. It protects the items from wear and tear, aging and faulty manufacturing. A hot wire from within the appliance could come loose and make contact with the metallic case, without the 3rd prong, you could be lethally shocked when touching it. Appliances with this third prong have a wire that connects directly from the metallic case and back to the outlet. Voltage along this path would trip the breaker and cut off the electricity that could potentially kill you.
Prevent serious injury or an accident from happening in your home by using Meiji GFCI’s, AVRS (Automatic Voltage Regulator), UPS (Uninterrupted Power Supply), Wiring Devices, Extension Sets, and Timers which all have grounding or 3rd prongs. The whole family of Meiji Electric’s GFCI’s MGU252, MGF250, GF250 and LG20 are classified as Class A in accordance with UL943. This is because all Meiji Electric GFCI’s have a 6mA sensitivity rating, unlike other GFCIs being sold in the markets which only have 15mA rating or even higher. UL Standard indicates the `let go factor’ of women and children should not be more than 6mA sensitivity rating because anything above this range is where `freezing currents’ start and it may not be possible to `let go.’ The Meiji GFCI is different from conventional receptacles, because in the event of a ground fault, it automatically trips, and stops the flow of electricity to your body, thus preventing serious injury. Meiji GFCI’s will work even without a grounded wire, even if a utility box isn’t grounded, installing a GFCI in it will still protect you (and your tools and appliances) from ground faults. The Electrical Code requires installing a GFCI for all wet areas, this is necessary to avoid ground fault which happens when electricity passes through our wet body before it reaches the ground.
Our newest addition is the MGU252, the only square GFCI with a combination of 1 international outlet and 2 USB outlets. It is designed for ease of use with all USB-dependent gadgets and devices while protecting you in wet prone areas. For your convenience, we will be giving a FREE custom-made 3’’x 3’’ utility box UB-252 so you don’t need to worry on where to get one.
So the next time you see that 3rd prong, just remember that it could save your life! Call us at 448-7423, 727-5790, 414-4012 and 413-6636 or email us at firstname.lastname@example.org for your various electrical requirements! You can visit our showrooms located at Unit 15 Landsdale Arcade, Mother Ignacia, Quezon City and 1 Mabolo Street, New Manila, Quezon City. You can also buy our items at your nearest ACE Hardware, Handyman or Ortigas Home Depot branches.