For example, a feeder with a neutral wire, a ground wire, and 3-phasc wires is represented by a single line. ... A riser diagram (sometimes called a vertical riser diagram) is very similar to a one-line diagram in that it shows distribution in a one -line format, but it ... are made for control, fire alarm, and communication systems.
|Title||:||Handbook of utilities and services for buildings|
|Author||:||Cyril M. Harris|
|Publisher||:||McGraw-Hill Companies - 1990-04-01|