HT instruments FULLTEST3 - Manual (Page 26)

FULLTEST 3
EN - 25
5.4. DIELECTRIC (DIELECTRIC)
 According to EN 60204-1, electric equipment must withstand a voltage test between shorcircuited
active conductors of power circuit and the earth bonding system for approx. 1 s.
 The test shall be carried out at twice the rated supply (or 1000 V whichever is greater) 50 Hz.
Components not rated for this test voltage may be disconnected before carrying out the test.
5.4.1. WARNINGS
WARNING, DANGER OF ELECTRICAL SHOCK
The Machine Tester FULLTEST 3 supplies high voltage of a dangerous power. According to EN 50191
the following precautionary measures must be taken prior to a test:
• Block access to danger area .
• Put up warning signs (Attention! High voltage, danger to life).
• Install warning lamps (red, green) to be easily visible .
• Install EMERGENCY-OFF switch into the mains installation outside the dangerous area.
• Electrical trained personnel may only do the tests under supervision of specialist staff and have to be
trained regularly .
• Use safety probes with protection against contact or with two-hand operation only. Always hold only
one probe in one hand.
• Connecting one test terminal to the UUT and working with one probe or holding both probes in one
hand is prohibited.
• It is prohibited to touch the unit under test during the test. If need be, additional measures must be
taken (e.g. cover made of insulating mats) to protect the person performing the test against
inadvertent contact with the test object.
Testing may commence only after all safety measures were taken.
Ensure that all switches on the UUT are closed in order to test all it’s components. For the purpose of
measurement all active conductors (L1, L2, L3 and N) must be shortcircuited.