Different Kinds of Light Bulbs

Light bulbs are probably the most commonly purchased of electrical supplies. But there’s still a lot of thought process that may go into your purchase. You may want to think about energy efficiency. You may want to think about what mood you are trying to create with the lighting in your home. Here we will review some options in light bulb buying. Hopefully, it will make your decision-making process a bit easier.

Different Kinds of Light Bulbs

Compact Fluorescent Light Bulbs: These are among the most energy efficient light bulbs. CFL’s produce a UV light and can be available for outdoor use. They may not hold up to power surges so it’s not advisable to use them in a workshop.

Light Emitting Diodes: Along with CFL’s, LED’s are also among the most energy-efficient light bulbs. They can also be used outdoors if indicated on the package. Because the bulb stays cool they do not contribute to heat build up and can help you save on air conditioning costs.

Fluorescent Bulbs: These are bulbs or tubes that emit UV light. They will not work without a ballast.

Halogen Bulbs: These run on halogen gas that increases the light output and rated life. They emit a high-quality light and can last up to a year.

HID Bulbs: These are primarily used in larger spaces like warehouses, commercial spaces and in streetlights. Because they don’t have filaments, they tend to last longer than most other light bulbs. They also require a ballast in order to function.

Incandescent Bulbs: Because these bulbs do not comply with current energy efficiency standards, they are being phased out. They are available for purchase, only while supplies last.

In addition to learning the different types of bulbs that are available, there are certain characteristics of bulbs that you may want familiarize yourself with. When buying light bulbs in electrical supply stores, be sure to look at the lighting label on each package. These will let you know what you can expect from your purchase including the brightness, estimated yearly cost, life expectancy, energy use, light appearance and mercury information of the light bulb.

The label will also indicate the Kelvin temperature of the bulb. This measures the light color or appearance of the bulb. A lower Kelvin number will indicate that the color has a more yellow appearance, while a higher number means the light has more white or blue tones.

Light bulbs are available in many different types of electrical supply outlets. If you are shopping for electrical supplies online, be sure to read the description of the bulb carefully to ensure you are buying the bulb you need. Look out for indications like whether it is suited for outdoor use, and whether it can be used for dimmable lighting or with a three-way switch. Electricians may purchase bulbs in bulk at electrical wholesale outlets.

Buying a light bulb seems like a simple task, but it may be more complicated than it seems. Hopefully, this article was valuable in educating you about the different types of bulbs available for your home or office use. Good luck finding the bulb that is right for you.

Discover Safety Tips for Electrical Installations

If you are working with electricity and electrical supplies, it’s very important to make sure you are complying with recommended safety precautions. Whether you are an electrician, or a do-it-your-selfer, working with electricity can be a very dangerous undertaking. Here are some general rules you should be aware of and follow when you are working with electricity.

Electrical Installations

  1. Make sure your electrical supplies are in good condition. Do not work with frayed cords, damaged insulation or broken plugs.
  2. Take precautions when working on underground cabling. The digging that occurs can damage the wiring so be sure to wear insulated gloves. The damp soil surrounding the cable and ground faults can also be potentially dangerous.
  3. GFCI’s can be useful when doing electrical work as they protect against electric shock. They are designed to disconnect when they sense over current or short circuit faults. Be sure your GFCIs are properly connected and in working order monthly.
  4. Always turn off the mains when you are working on any electrical device in the home. It’s a good idea to put a sign on the service panel to let passerby’s know work is being done so nobody accidentally turns the panel back on.
  5. Be sure hands are dry when working with electricity. Water increases conductivity and should be avoided at all costs.
  6. Never use an aluminum or steel ladder when working with electricity. As these are conductors of electricity, an electrical surge can ground you causing the electrical current to pass through your body. Opt for ladders made of bamboo, wood, or fiberglass instead.
  7. When thinking about electrical supplies to use while performing electrical work, consider insulated tools.
  8. If you are going to be doing any soldering while working with electricity, be sure to take the appropriate safety precautions. Wear goggles and stay away from the fumes. Keep the iron in its stand when not in use and be aware that the iron can get extremely hot and cause burns.
  9.  Put a cap on the hot or live wire on an electric board or service panel. The bare ends of the live wire could short circuit with the neutral. The cap will insulate the ends of the cable and prevent shock if they are touched accidentally.

Working with electricity can be extremely dangerous, but taking the proper precautions when doing electrical work, and using the correct electrical supplies can decrease your risks of injury considerably. When considering what electrical supplies to use, look for a reliable electrical supply store. If you are buying electrical supplies online, be sure that you read the description carefully so you know the product will be the right one for your job. Electricians may consider buying products at electric wholesale suppliers. Good luck staying safe when performing your next electrical task!

Technical Math For Electricians

Are you interested in becoming an electrician? Well, if that is the case, you might want to make sure you are up on your math skills. Ohm’s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. The formulas related to Ohm’s law are the foundations of electrical supplies like electrical circuits.

Electricians Math

The first step you will want to take is to review certain fundamentals of math. Understanding the following will be useful: whole numbers, decimals, fractions, percentages, multipliers, percent increase, reciprocals, squaring a number, parenthesis, square root, volume, kilo and rounding off.

It’s also a good idea to review your basic knowledge of simple electrical supplies like an electric circuit. This consists of a load, a power source, and conductors. A switch will activate and deactivate the circuit.

Once you have mastered this basic knowledge, it’s time to take it to the next level, which is to apply this to what you need to know when doing electrical work. It’s important to understand the theory of direct proportion, which is to say that changing one factor will result in the change of another factor, so if the voltage increases by 25%, the current will increase by 25%. Inverse proportion is the opposite of this. In inverse proportion, decreasing one factor by 25% will result in an equal increase in the other factor.

Ohm’s law states E=IxR or Voltage=Current x Resistance. Two values here must be known to solve for the third. Similarly, a PIE formula circle determines the relationship between Power, Current and Voltage in which P=IxE (E being voltage and I being current).

A formula wheel combines Ohm’s law and the formula circle. The formulas in the formula wheel can be used for direct or alternating current circuits with unity power factor. In the formula wheel, you can determine the value of voltage, current, resistance or power based on the known amounts.

Power used in electrical supplies like fluorescent lights, motors or stove elements is considered useful work. The power used to make the electricity such as heating the conductors is considered wasted work. An electrician should be aware of this principal and be able to figure out the cost of power consumed in watts. This is based on a mathematical formula, P=I2xR.

An electrician should also understand that the voltage applied to a resistor can dramatically affect the power it consumes. Power is determined by the square of the voltage so if the voltage is doubled, power will increase by four times. Similarly, if the voltage is reduced by 50%, the power will go down by 25%.

Reviewing this information in a bit more depth will give you a good working knowledge to solve a wide variety of electrical problems. However, there is still much more to learn. Those wishing to find out more about the mathematics involved in electrical work should consider looking online for study guides where you can learn more advanced techniques which will increase your skill and knowledge. Good luck in your pursuit of a mathematical education as an electrician.