As a child, you likely had a toy which was also a science project in its demonstration of how electricity works. Absolutely was it fun! Electricity is still fun as adults who understand what it can potentially accomplish and what you know you can do with it. As an adult, you're working with levels of electricity which can potentially be dangerous if you don't understand the energy involved, which is why voltage testing equipment is an absolute necessity to assure electric equipment is working properly before a problem occurs.
High Voltage Defined
Voltage in and of itself isn't a dangerous concept, but the energy behind it is. Watts always equals volts times amps, and none of those terms means anything without reference to how they affect each other. Your house is nominally 110-120 volts and uses voltage within the acceptable range designated by building code. When you start working with the 220 volts your dryer and stove use, you begin dealing with high voltage. Low voltage will give you a shock, high voltage will hold you to it and continue to course through your body.
Safety First, Second, and Third
Working with electricity always requires not one, but a backup and redundant safety plan. Electricity is used to serve your needs, and can be properly managed toward such a goal, but it can also kill you if misused. The primary safety plan is to simply turn off the power to the source with which you are working. Secondarily, you use a tester to assure the power is off while you work on the project. Then you use your testing equipment throughout the job and afterwards to assure the voltage you need is there or not as your needs dictate.
If you're looking for safe, reliant electrical contractors, contact Power Plus Engineering today. From DC power testing to electrical testing and transformer services, we have the expert staff to help.