The eruption of teeth into the mouth occurs between 6 months and 30 months of age. The first teeth to erupt are usually the lower front teeth. The eruption chart shows the average age at which teeth emerge. This can vary considerably from child to child. See part 9 of this subject.
When working with members of your community on fire and life safety, it is important to teach the common causes of electrical fires. Here are the 5 most common causes of electrical fires. 1. Faulty outlets, appliances. Most electrical fires are caused by faulty electrical outlets and old, outdated appliances. Other fires are started by faults in appliance cords, receptacles and switches.
Lack of 3-phase electric system connected by star. If zero breaks off, small-power appliances will be destroyed by overvoltage. Electronic and electrical devices are designed to operate at a certain maximum supply voltage, and considerable damage can be caused by voltage that is higher than that for which the devices are rated.