3. Explosion Protection Instrumentation in Zone 2/Division 2
3-8
TI 33Q01J30-01E
Parameters of the Device which Gives Energy
Voc: maximum open-circuit output voltage
Maximum voltage that occurs at the open terminal (part) when the Non-Incendive (NI) circuit
is open
Isc: maximum short-circuit output current
Maximum current which currents when the NI circuit is short and earth fault
Ca: maximum allowable capacitance
Maximum capacitance that can be connected to the NI circuit
La: maximum allowable inductance
Maximum inductance that can be connected to the NI circuit
Cn: maximum allowable capacitance (in a normal circuit voltage of Vn)
Maximum capacitance that can be connected in a normal circuit voltage of Vn ( the circuit
current in a state where no opening circuit, short circuit, earth fault occur) in the NI circuit
Vn: normal circuit voltage
Circuit voltage in a state where no opening circuit, short circuit, earth fault occur
Ln: maximum allowable inductance (in a normal circuit current of In)
Maximum inductance which can be connected in a normal circuit voltage of In ( the circuit
current in a state where no opening circuit, short circuit, earth fault occur) in the NI circuit
In: normal circuit current
Circuit current in a state where no opening circuit, short circuit, earth fault occur
Cc: capacitance of the external wiring
Lc: inductance of the external wiring
Parameters of the Device which Receives Energy
Vmax: maximum input voltage
Maximum voltage that can maintenance the NI properties of the device
Imax: maximum input current
Maximum current that can maintenance the properties of the device
Ci: maximum internal capacitance
Maximum internal capacitance of the device that can be considered to conduct to the NI
circuit (the external wiring) when the device is connected to the NI circuit (the external
wiring)
Li: maximum internal inductance
Maximum internal inductance of the device that can be considered to conduct to the NI
circuit (the external wiring) when the device is connected to the NI circuit (the external
wiring)
May 18, 2018-00
