One Point Lesson is a tool to convey information. Designed to enhance knowledge and skills in a short time, at the right time, whenever needed. To upgrade levels of expertise by having individuals study, learn and then train others in the knowledge or skill. One Point Lesson – Portrait
All electrical panels and switches should be closed at all times. The only persons allowed to enter electrical panels are qualified electricians. No one else should ever enter an electrical panel. This OPL is only for reference – always follow safety rules prescribed by your local H&S department.