8
TRISAN S8 Important Read General description
Definitions and explanations
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There are technical words and phrases that have specific meaning related to the standards and the Tester that may not
be understood by the operator of this instrument. The following is a list of these words, meanings and explanations.
Active (A) - Neutral (N) continuity The copper circuit loop (conductor) which electric current flows to power elec-
trical appliances. The importance of electrical continuity is to ensure the testing voltage is applied directly to the
appliance internal electrics and not just applied between the plug through the power cord to the on/off switch.
Supply voltage (110-265VAC) is applied between each end of the copper loop to drive the current around and
through the appliance.
Circuit: is the active to neutral loop via the appliance internal electric load resistance or impedance that current flows.
Closed circuit: if the loop is not broken or if a switch is closed
Open circuit: the loop is broken or switch is opened
Circuit resistance: limits amount of current flow through the appliance measured in ohms.
Hi Z or impedance: a highly resistive circuit greater than 100k ohms. Frequency dependent resistor. The resistance
cannot be measured by simply ohm-meter or multimeter. Relevant frequency range 45 to 400 Hz.
Portable appliance: equipment that is frequently moved from place to place, plugging in and out of power outlets
frequently in use.
In-service appliance: an appliance that is in use. This is the appliance that requires inspection, test and tag.
Out of service appliance: shall not be safety tested until serviced by electrician. The electrician is required to test for
safety after repair.
Stationary appliance: Equipment having a mass exceeding 18kg. These items are not considered portable appliances
and do not require regular safety testing if the responsible person considers the appliance to be low risk. Appliances
such as fridges fit this category provided it is directly connected to a power outlet and not connected via a power board
or extension lead.
Colour coding safety tags: Recommended but not mandatory. Union construction and mining sites will not allow
appliances on sites unless the tag colour readily indicates the retest date.
Red December to February
Green March to May
Blue June to August
Yellow September to November
Other colours for coding maybe suitable.
Cloak: An electrical conductive material that is used to tightly cover the surface of an appliance which acts as an earth
screen for hazardous leakage currents. The cloak may be of steel, copper and aluminium flexible material.
The material used must be kept clean of dirt, oil, oxides and salty materials or may influence test results.
Unless the cloak measures below 1 ohm it must not be used in Class ll run tests.
Isolation: Insulation of an appliance between the power supply inlet and outlet or metal exposed parts.
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