Electrical Abbrevations

electrical drawingLooking at an electrical plan, or reading an electrical specification, and wondering what all the abbreviations are?

Well here are some of the more common ones you may encounter, many with links to other posts:

3phThree Phase Power
AC – Alternating Current
ACU – Air Conditioning Unit
CBCircuit Breaker
DC– Direct Current
DH – Ducted Heating Unit
DIM – Dimmer
DGPO – Double General Power Outlet
ECUEvaporative Cooling Unit
ELCBEarth Leakage Circuit Breaker
GPO – General Power Outlet
IPIngess Protection. Range from a basic IP 30 (standard outlet) to IP67 (fittings to withstand total immersion in water)
JB – Junction Box
LV – Low Voltage
LEDLight Emitting Diode
HW– Hot Water Unit
M – Meter
MSB – Main Switchboard
RA -Return Air (from Ducted Heating/Air Conditioning)
RCDResidual Current Device
RF – Roof Access
SB – Switchboard
S – Sensor
SEN – Sensor
WPWeather Proof

See Jargon for more posts