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A-4 Panel C Industrial Computer Hardware User's Manual – May 2003 GFK-2251
A
Nonincendive Field Wiring (Control Drawing #DR00)
1
USB Port PL6
USB Port PL6
USB Port PL10
Ethernet Port
Ke
y
board Port
Mouse Port
Panel C
A
ssociated Nonincendive
Field Wiring Apparatus
Hazardous (Classified) Location Class I,
Division 2 Groups A, B, C, and D
Non-hazardous Area
Notes:
1. Nonincendive Circuit Parameters:
Panel C Industrial Computer
Vmax = 5VDC Voc = 5 VDC
Imax = 500mA Isc = 500mA
Ci = 34.2µF Ca = 1000µF
Li = 0mH La = 5mH
2. Selected Associated Nonincendive Field Wiring Apparatus must satisfy the
following requirements:
Associated Nonincendive
Field Wiring Apparatus
Panel C
Industrial Computer
Voc
≤
Vmax
Isc
≤
Imax
C a
≥
Ci + C cable
La
≥
Ci + C cable
Vmax
≥
Voc
Imax
≥
Isc
Ci + Ccable
≤
Ca
Li + Lcable
≤
La
3. If the electrical parameters of the cable are unknown, the following values may be
used:
Capacitance – 60 pF/ft
Inductive – 0.20 µH/ft
4. Nonincendive Field Wiring must be installed in accordance with Article 501.4(B)(3)
of the National Electrical Code ANSI/NFPA 70.