[amp_mcq option1=”Circuit breakers” option2=”Isolators” option3=”Load break switch” option4=”Circuit breakers and load break switches” correct=”option3″]<\/p>\n
The correct answer is: C. Load break switch.<\/p>\n
A load break switch is a device used to isolate an electrical circuit from a power source. It is not designed to interrupt current, and therefore does not require a current rating.<\/p>\n
A circuit breaker is a device that is designed to interrupt current. It is used to protect electrical circuits from overloads and short circuits. Circuit breakers are typically rated for a specific current, and must be selected to match the current carrying capacity of the circuit they are protecting.<\/p>\n
An isolator is a device that is used to disconnect an electrical circuit from a power source. It is not designed to interrupt current, and therefore does not require a current rating. Isolators are typically used to isolate equipment for maintenance or repair.<\/p>\n
Circuit breakers and load break switches are both devices that are used to isolate electrical circuits from a power source. However, circuit breakers are designed to interrupt current, while load break switches are not. Therefore, the current rating is only necessary for circuit breakers.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”Circuit breakers” option2=”Isolators” option3=”Load break switch” option4=”Circuit breakers and load break switches” correct=”option3″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[949],"tags":[],"class_list":["post-45588","post","type-post","status-publish","format-standard","hentry","category-transmission-and-distribution","no-featured-image-padding"],"yoast_head":"\n