Specifications

PIP ELCGL01
Electrical Design Criteria November 2002
Page 2 of 20 Process Industry Practices
10.2 480-Volt Receptacles .......................15
10.3 Specialty Receptacles ......................16
11.Wiring Methods.........................16
11.1 Cable Tray........................................16
11.2 Aboveground Conduit and Fittings ...16
11.3 Underground Conduit and
Duct Banks.......................................17
11.4 Direct Burial......................................18
11.5 Overhead Pole Lines........................18
11.6 Messenger Cable .............................18
12.Power and Control Wiring........18
13.Instrumentation.........................18
14.Freeze Protection and Process
Heat-Tracing Systems ..............18
15.Cathodic Protection..................19
16.Uninterruptible/Standby Power
Supply........................................19
17.Electrical Requirements for
Skid-Mounted or Packaged
Systems.....................................20
18.Lightning Protection.................20