Intrinsically safe
PP1095/2021/Issue 6
Page 7 of 8
Figure 5: Functional earthing and wiring (Sheathed and Unsheathed)
50mm
(Minimum)
10 11 12
7 8 9
1 2 3
4 5 6
Non-hazardous area
Hazardous area
A
B
Cable
sheath
Cable
sheath
Cable
sheath
Cable
sheath
C
I.S
Detector Base
I.S
Detector Base
Functional earth
A
B
C
Dual-channel Isolator
Protocol Translator
DIN-Rail enclosure
Galvanic Barrier
All mounted within
the DIN-Rail enclosure
Drain / Shield
CIE
Wiring in accordance to TSDxxx, BS5839-1 or local codes,
BS EN 60014-xx, and CIE manufacturers recommendation
Loop
wiring
1 2 3
4 5 6
10 11 12
7 8 9
1 2 3
4 5 6
10 11 12
7 8 9
Ch 1
Ch 2
Functional earth
+
-
50mm
(Minimum)
10 11 12
7 8 9
1 2 3
4 5 6
Non-hazardous area
Hazardous area
A
B
C
I.S
Detector Base
I.S
Detector Base
Functional earth
This is optional for a shielded cable in the hazardous area
A
B
C
Dual-channel Isolator
Protocol Translator
DIN-Rail enclosure
Galvanic Barrier
All mounted within
the DIN-Rail enclosure
Loop
wiring
1 2 3
4 5 6
10 11 12
7 8 9
1 2 3
4 5 6
10 11 12
7 8 9
Ch 1
Ch 2
Functional earth
Wiring in accordance to TSDxxx, BS5839-1 or local codes,
BS EN 60014-xx, and CIE manufacturers recommendation
