69 kV-230 kV are referred to as âhigh voltageâ and voltages 230 kV-1,100 kV are referred to as âextra high. voltage,â with 1,100 kV also referred to as âultra high voltage.â The emphasis of this guide is on low and. medium voltage distribution systems.
Most manufacturers of umbrella strollers recommend that these strollers should not be used for any infant under 6 months old. This age is set by manufacturers because it is the average age when infants have sufficient strength to sit up and have some head and neck control.
Before heading out on your first run with your baby, check with your pediatrician and follow the strollerâs recommendations for proper usage. Itâs also a good idea to check your strollerâs website for relevant product recalls. Most importantly, safety firstâyou shouldnât begin running with your baby until he or she is at least six months old, as most babies canât hold their head up until that age. Once you and your child are ready to venture out onto the roads and trails, remember that jog-stroller training will be much different.