Besantek BST-ET14, Инструкция по эксплуатации

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The tester also tests the tripping sensitivity of ELCBs /
RCDs or can be utilized as a fault finding tool in case
of standing leakage current.
In this case, the user can quickly find which breaker
supplies the faulty circuit that causes the ELCB / RCD
to have a standing current leakage fault.
The tester has a universal fused test socket that can
be utilized to connect any test equipment that needs
to be connected to the mains or to the appliance
under test.
This is very useful in case recording the mains
voltage is needed or recording the appliance voltage
of a power consumption test.
The internal fuse is a HRC type.
For example, some of the applications to use the
Universal Test Sockets can be to connect a voltmeter
or a recorder, or to measure the voltage when doing
a power measurement, while the current coil can be
clipped around the ear.
The tester can be utilized to check appliances,
ascertain its leakage current or calculate its insulation
resistance or even measure the consumption
current and voltage input and, calculate its power
consumption.
The Appliance socket is protected by the same HRC
fuse as the universal test sockets.