Safety Guidelines For Hazardous Voltages - National Instruments NI 9269 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.
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Hazardous Voltage
advising you to take precautions to avoid electrical
shock.
Ensure that hazardous voltage wiring is
Caution
performed only by qualified personnel adhering to local
electrical standards.
Do not mix hazardous voltage circuits and
Caution
human-accessible circuits on the same module.
Ensure that devices and circuits connected to
Caution
the module are properly insulated from human contact.
When module terminals are hazardous
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 9971 connector backshell kit to ensure that the
terminals are not accessible.
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