equipment. It can be visually seen that an isolator is open and hence service men are assured that it is safe to work on the isolated equipment. The equipment to be worked on is further earthed mostly on either side so that electrical energy that could be in the equipment is completely discharged to earth further enhancing safety of the service men.
Years of experience helping teens through Puberty with all Q&A. Generally puberty in boys lasts on average for around six years and ends when all growing is complete. On average boys start puberty around the ages of 12 or 13 and if that was the case you might expect to finish puberty around 18 or 19 years of age. The range for puberty to begin can be from 9 years of age right up until the late teens. For girls the range is shorter, they begin earlier on average and finish growing earlier than boys. For girls the average end of puberty is about the age of 15 or 16. For boys the average end of puberty is about the age of 18 or 19.
Puberty is a major change that happens in your body. It is a time when you grow very fast and your body starts to change into an adult body. Puberty happens over a period of 2 to 4 years, but may last longer. Puberty usually starts between ages 8 to 13 in girls, but it may start earlier or later. You may not go through puberty at the same time or in the same way as friends your age do. Breast changes: Your breasts will begin to grow. This is often the first sign you are starting puberty.