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: Life Safety
Electrical systems installed in a building to provide its occupants a reasonable level of safety during fires and other emergencies.
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
Often, electricians will install a 2″ conduit from the donor antenna to the bi-directional amplifier (BDA). A BDA is a device that boosts radio frequency
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
This system works by installing a donor antenna on the roof of a high rise and pointing it at the nearest SF public safety radio
Downtown San Francisco is a concrete labyrinth. Tourists and residents are impressed by the massive skyscrapers dotting the SF skyline. However, this presents a problem