Safety Guidelines For Hazardous Voltages - National Instruments NI 9423 Getting Started Manual

Safety Guidelines for Hazardous Voltages

If hazardous voltages are connected to the device, take the
following precautions. A hazardous voltage is a voltage greater
than 42.4 Vpk voltage or 60 VDC to earth ground.
Caution
performed only by qualified personnel adhering to local
electrical standards.
Caution
human-accessible circuits on the same module.
Caution
the module are properly insulated from human contact.
Caution
voltage LIVE (>42.4 Vpk/60 VDC), you must ensure
that devices and circuits connected to the module are
properly insulated from human contact. You must use
the NI 9932 connector backshell kit to ensure that the
terminals are not accessible.
Ensure that hazardous voltage wiring is
Do not mix hazardous voltage circuits and
Ensure that devices and circuits connected to
When module terminals are hazardous
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