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.
At what age do boys stop growing? The stopping date for male growth is just as variable as the starting date. Some men are done growing around the end of high school, while others continue into the college years. Puberty generally lasts two to five years, stopping around ages 17 to 19 for boys. At the end of puberty, the growth plates on the long bones close, which ends the normal period of growth, says Dr. Gettleman.