Advanced RCD Compliance Testing Unit - MeasureSafe 36A
is easy to use, cost effective and a reliable hand held digital,
microprocessor controlled RCD compliance testing unit on the market. No
complex dials knobs or buttons and more importantly no training or
operator issues-just plug in and go. Designed and manufactured in
Australia to World standards.
The Occupational Health and Safety (OH&S) acts around Australia
along with many other countries, legislate that portable equipment and
appliances, electric hand tools, extension leads, power boards and
portable Residual Current Devices (RCD’s) be tested in all commercial
and industrial areas for compliance to the appropriate safety standard
in Australia and New Zealand (AS/NZS 3760:2003). RCD/ELCB or ground
fault detector testing has been a source of confusion and
mis-information for many years. Complex products with dials and knobs
and unreliable results lead to compliance issues and high training
demands often resulting in incorrect testing.
RCD/ELCB and ground fault detector circuit breakers are used in mains
meter boxes and as portable devices to protect personnel against faulty
household and industrial circuits as a result of failing equipment.
Mains mounted RCD’s along with portable units found on extension leads
and integrated with power boards can fail as a result of abuse, age,
corrosion, ingress of water or dirt and welded contacts. These products
need to be regularly tested for personal safety as well as compliance
to the appropriate standards.
is easy to use – just plug it into the power outlet connected to an RCD
circuit and press the test button. The unit will automatically test the
RCD and report the mains voltage along with the current and time taken
to trip on alternative tests. Alternatively service personnel with more
advanced knowledge can set up their own test conditions.
devices are built to a range of specifications depending on the
installation application and will break the mains electrical circuit
when an imbalance is detected between the active and neutral current
supplied to the circuit (ie. there is a leakage current to earth). The
current and time thresholds for tripping the RCD (which are designed
into each RCD device) must operate before the leakage current poses a
life threatening hazard to personnel operating attached equipment.
typical threshold of a household RCD will trip at a current of 30
milliamperes and a time of less than 20 milliseconds. However RCD
designs will vary from 6 to 40 milliamperes with trip times up to 300
milliseconds, depending on the application and intended use.
MeasureSafe 36A can test all currently available RCD’s by simulating
various earth leakage problems. In addition the MeasureSafe 36A will
also report the mains voltage and incorrect wiring to outlets. Suspect
equipment can also be tested whilst operating to provide earth leakage
operating margins to identify nuisance tripping problems or faulty
to properly test both the trip current and the trip time two separate
test must be performed. The trip time is measured when the RCD trip
current is applied to the RCD the time taken to trip is then measured.
The trip current is measured by slowly incrementing the leakage current
from 0 mA until it trips, then the current at which the unit tripped is
displayed and recorded.
MeasureSafe 36A has an I-Test and T-Test button this can be used to
manually select a particular type of test, either current trip test
(I-test) or time trip test (T-Test). If neither is selected then the
unit will intelligently alternate between the two tests each time it
powers up. This provides minimal operator setup for each test. Totally
automatic testing is performed by simply plugging in to an RCD equipped
outlet and when the ready screen is displayed the test button is
selectable, “test slope” feature for testing on the rising or falling
slope of the mains is only available on the MeasureSafe 36A. Once
selected this will become the default setting for future tests but can
easily be reset. The selectable RCD type is used to test the trip time
and current, of the different RCD type categories. There is also a
“custom type” setting to enable the selection of a customised value.
MeasureSafe will also record up to 4000 test results for later
downloading to a PC. Various models are available to suit your
individual needs from no result storage, 2000 results storage and 4000
results storage. Each result will record a unique test ID, the date and
time, the mains voltage, the RCD type, the testing slope and the result
for that test. These extensive tests make the MeasureSafe 36A the most
comprehensive device of this type available.For more information contact us direct on (03) 9338 8467