Test Procedures................................................................................................................6
6.0
Case, Strap and Test Lead Pouch Assembly .................................................................7
7.0
Guide to Tripping Times for Different Types of RCDs....................................................8
1.0 Warning 1.
This instrument must only be used by a trained, experienced tradesperson and operated in strict accordance with the instruction. Clipsal will not accept liability for any damage or injury caused by misuse or non-compliance with the instructions or safety procedures.
2.
It is essential to read and understand the safety rules contained in the instructions. They must always be observed when using this instrument.
3.
This meter has been designed with your safety in mind. However, no design can completely protect against incorrect use. Electrical circuits can be dangerous and/or lethal when lack of caution or poor safety practice is used.
4.
Double check all switch settings and lead connections before making any measurements. DO NOT TOUCH exposed wiring, connections or other “LIVE” parts of an electrical circuit.
2.0 Introduction The Clipsal 486CD Digital RCD Tester uses the latest state-of-the-art microprocessor technology to give the best possible performance and accuracy. Testing Features include: Independent Constant Test Current Control: Constant current circuitry permits accurate and consistent readings even when the voltage fluctuates by up to 10% at 240V a.c. d.c. Sensitive Breakers: When switched at the d.c. position it will test 30mA d.c. sensitive RCDs. If the fault current to Earth is not a pure sine wave but has a d.c. current component, it is possible for an RCD not to trip at its rated current. The Clipsal 486CD is capable of testing these units by introducing a d.c. fault current. Fault Current a. 30mA Pure Sine Wave a.c. Non-d.c. sensitive breakers will trip d.c. sensitive breakers will trip
Disconnect any equipment plugged into the circuit to be tested. Connect the instrument to a socket on the load side of the RCD to be tested. lamp is not lit. Ensure that the P-E and P-N lamps are lit and the If the sequence of lamps is not as shown the polarity is not correct. Do not proceed with the test. Check the wiring of the socket or the distribution board for a possible fault. Set the range switch to the rating of the RCD. Set the Test Function switch as required. Fast trip test x5 RCD should trip. Rated trip current test x1 RCD should trip. Half trip current test x1/2 RCD should not trip. (Note: Test time only 2000ms max.) Press and release “Press to Test” button. Trip time will be displayed for three seconds. If button is held down trip time will be displayed until the button is released. Reset the breaker and change the position of the wave from polarity switch to test on the other half cycle. Repeat Step 5. Trip times should be within the limits set by AS/NZS 3190 or other applicable regulations.
7.0 Guide to Tripping Times for Different Types of RCDs The following table is a guide to tripping times for different types of RCDs. For detailed information on the tripping characteristic requirements of RCDs refer to Australian Standards Publication AS/NZS3190 or contact your nearest Clipsal office.
Set 486CD
Rated Trip Current
500% of Rated Trip Current
RCD Type
Type I (10mA) Max. Trip Time
Type II (30mA) Max. Trip Time
Type III (30-300mA) Max. Trip Time
Min.
Max.
Clipsal RCD
40ms
40ms
40ms
130ms
500ms
AS/NZS3190 Requirements
40ms
300ms
300ms
130ms
500ms
Clipsal RCD and AS/NZS3190 Requirements
40ms
40ms
40ms
50ms
150ms
Clipsal Australia Pty Ltd A member of Schneider Electric
Type IV Selective (30-300mA)
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