I.S. SYSTEM 800
17A-13-I
11/03
PAGE 4 of 14
Note: This Section specifies maximum equipment
loads for systems with a single I.S. spur on the
addressable loop. For systems with more than
one I.S. spur per loop, please also refer to
document 17A-02-ISLOOP.
3.1.1 EQUIPMENT INSTALLED IN SAFE AREA
Equipment which can be installed in the Safe Area is
detailed in Table 1:
Apparatus Approval No. Permitted Temp. Class
Pepperl+Fuchs
KFD0 - CS
Ex1.54
Galvanic
Isolator
Ex-95
C2064
One IIC
and compatible control equipment, or associated equipment
connected to the above Galvanic Isolator provided that it is not
supplied from, or contains under normal or abnormal conditions, a
source of potential with respect to earth in excess of 250V rms. or
250V dc.
Table. 1 System 800 - Equipment Which can be
Installed in the Safe Area
3.1.2 EQUIPMENT PERMITTED IN HAZARDOUS AREA
Equipment permitted in the Hazardous Area is detailed in Table. 2.
Description Approval No. Permitted Temp. Class
801PHEx Optical + Heat BAS01ATEX1394X
Maximum
combined
number of 30
T5
801CHEx Carbon Monoxide + Heat
801HEx Heat
IF800Ex Interface Module BAS01ATEX1394X Maximum of 30 T5
S271i+ Advanced Flame Detector Ex94C2080/13 Maximum of 10 T5
Manual Callpoint Simple Apparatus 1 per IF800Ex T5
CP840Ex BreakGlass Callpoint BAS01ATEX1394X Maximum of 30 T5
Any Simple Apparatus Simple Apparatus Any Number per
IF800Ex
T4
Table. 2 System 800 - Equipment Permitted in Hazardous Area
3.2 ISOLATED SOUNDER SYSTEM
BASEEFA CERTIFICATE Ex872028
This system provides an Intrinsically Safe fire alarm
sounder circuit to category ‘ia’ for Gas Groups IIC in Zone
0, Zone 1 or Zone 2. End-Of-Line monitoring is available
only up to the Isolating I.S. Interface. The apparatus which
can be installed is as follows:
3.2.1 EQUIPMENT INSTALLED IN SAFE
AREA
The apparatus which can be installed in the Safe Area is
detailed in Table 3.
Apparatus Approval No. Permitted Temp. Class
MTL5021
Alarm
Driver
Ex95D2426 ONE -
and compatible control equipment, or associated equipment connected
to the above safety barrier provided that it is not supplied from, or
contains under normal or abnormal conditions, a source of potential
with respect to earth in excess of 250V r.m.s. or 250V d.c.
Table. 3 Equipment to be installed in the Safe Area
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