On-site RCD Testing service and RCD Tester sales
Sydney Electrical Appliance
Testing can test both portable and fixed RCDs, which are also
known as ELCBs and the Safety Switch.
Our qualified technicians use
an RCD Test instrument such as the Wavecom TnT Plus, or the
Kyoritsu 5406A to accurately test both the RCD Times, and
the RCD Ramp Currents.
The RCD Trip Time is a measurement of how long it takes the
RCD to respond when a dangerous situation occurs. The RCD
Test Instrument simulates a fault, and records the operating
time of the RCD in milliseconds (ms). This test therefore
demonstrates how quickly the RCD will respond to a dangerous
situation. RCDs generally respond in under 30ms, however up
to 40ms is acceptable under certain circumstances.
During the RCD Ramp Current Measurement, the RCD Test Instrument
simulates an earth leakage current (which represents a dangerous
fault), however this time, the instrument starts the leakage
current gradually, and "ramps" the current up over
say 15 seconds. The test instrument then records the earth
leakage current in milliamperes (mA) at which the RCD trips.
This test demonstrates how sensitive the RCD is in detecting
a dangerous situation. Generally, RCDs must respond at 30mA
or less, although some special RCDs are set to respond at
either 10mA or 100mA.
RCDs do fail over time, and therefore the Australian Standards
require that RCDs be tested regularly. This includes both
regular "Pushbutton Tests" by the user, as well
as regular full testing by qualified technicians using calibrated
Contact us today
for more information,
or book online using the link below.
Looking to purchase an RCD Tester? Click on the images to the right.
To learn more about your electrical
appliance safety obligations under the WHS Act, click
Test and Tag'.