JLDP Electrical Design & Consultancy

POWER REDUNDANCY SYSTEM:

Found more commonly in servers and other high-end computers, a redundant power supply contains two (or more) power supply units inside it. Each power supply is capable of powering the entire computer and only one runs at a time. If one fails, the other power supply starts running to keep the computer powered up.

“As-built drawings are revised sets of drawings submitted by a contractor upon the completion of a particular job. They reflect all the changes made during the construction process.” ... The drawings that are first completed for a planned construction project are not the ones that are needed once the project is finished.

Ducts are conduits or passages used in heating, ventilation, and air conditioning to deliver and remove air. The needed airflows include, for example, supply air, return air, and exhaust air. Ducts commonly also deliver ventilation air as part of the supply air.

VOTE WISELY!