Because the building that I’m working in was built about 50 years ago, I’m coming across old electrical equipment. As an example, one exhaust fan
Category: Fire Alarm
It is common for automatic water sprinklers to protect a building from fire. Large vertical water sprinkler pipes rise up from the lowest level of
California’s State Building Code requires smoke alarms to be located in the following places: These smoke alarms are powered by a 120VAC general-purpose branch circuit