11
95-8562
4.2
APPENDIX C
INTRINSIC
ALL
Y S
AFE
CLA
SS B,
S
TYLE B
WIRING
Hazar
dous (Classifi
ed) Locations:
Class I,
Division 1,
Gr
oup C,
D
Class I,
Division 2,
Gr
oup
A,
B,
C,
D
Class II,
Division 1,
Gr
oup E,
F
, G
Class II,
Division 2,
Gr
oup F
, G
Class III,
Division 2
NOTES:
1.
SUIT
ABLE
FOR
INTRINSICALL
Y
SAFE
INST
ALLA
TION
IN
CLASS
I,
DIV
.
1,
GP
. C
,
D;
CLASS
I,
DIV
.
2,
GP
. A,
B,
C,
D;
CLASS
II,
DIV
.
1,
GP
.
E,
F
&
G;
CLASS
II,
DIV
. 2
,
GP
.
F
&
G.
CLASS
III,
DIV
.
2
HAZ-
ARDOUS
LOCA
TIONS.
WIRING
METH-
ODS
SHALL
BE
INST
ALLED
IN
ACCOR
DANCE
WITH
ANSI/NFP
A
70
(NEC),
ANSI/NFP
A
72
AND
ISA
RP
12.6.
2.
I.
S.
BARRIERS
MUST
BE
INST
ALLED
IN
ACCORDANCE
WITH
THE
MANUF
ACTURER’S
GUIDELINES.
3.
THIS
DRA
WING
SHOWS
ONE
SENSOR
CONNECTED
IN
A
CLASS
B,
STYLE
B
CONFIGURA
TION
PER
NFP
A
72.
MUL
TIPLE
SENSORS
MA
Y
NOT
BE
CONNECTED
TO
THE
SAME
BARR
IER.
AN
END
OF
LINE
DEVICE
(EOL)
IS
REQUIRED
TO
MONIT
OR
LINE
CONTINUITY
.
4.
END
OF
LINE
DEVICE
VALUE
PLUS
BARRIER
RESIST
ANCE
MUST
PROVIDE
ADEQUA
TE
SUPER
VISION
CURRENT
FOR
FIRE
ALARM
CONTROL
PANEL.
5.
RESIST
ANCE
BETWEEN
BARRIER
GROUND
AND
EAR
TH
GROUND
MUST
NOT
EXCEED
ONE
OHM.
6.
PM-5MPX
INTERCONNECTS
VIA
FL
YING
LEAD.
EXTENSION
CABLE
SHALL
COMPL
Y
WITH
ANSI/NFP
A
70
(NEC)
AR
TICLE
504-30(b)(2).
7.
CABLE
SHIELD
MUST
BE
TIED
TO
INTRINSIC
SAFETY
GROUND
AT
THE
BARRIER.
8.
THE
PM-5MPX
SENSOR
HAS
BEEN
SYSTEM
APPROVED
WITH
THE
FM
APPROVED
BARRIERS
LISTED
IN
THE
BARRIER
TABLE.
9.M
AXIMUM
CABLE
LENGTH:
1000
FEE
T.
PM-5MPX
ELECTRICAL
INTERF
ACE
W
ire
Color
Signal
Red
V+,
Input
Power
Orange
V+,
Input
Power
Black
Power
Return
Brown
Power
Return
Yellow
Alarm
+
Green
Alarm
+
Blue
Alarm
–
Vi
ole
t
Alarm
–
Gray
Trouble
+
White
Trouble
–
BARRIER
PARAMETERS
MODEL
MANUF
ACTURER
Vt
(V)
It
(MA)
9002/77-280-094-00
ST
AHL
28.1
87.0
Z978
PEPPERL
+
FUCHS
30.0
93.0
7278ac
MTL
28.0
94.0
BARRIER
TABLE
F
igur
e C1—Intr
insicall
y S
af
e Class B
, St
yle B
W
iring (Dr
awing No
. 420032)
