Instructions / Assembly
PAGE 39
InstallatIon and applIcatIon GuIde For 600v conductors
A R T I C L E S 3 5 2 A N D 3 5 3 – R I G I D P V C C O N D U I T
(RNC), SCHEDULE 40, AND HDPE CONDUIT
NOMINAL
INTERNAL
DIAMETER
TOTAL AREA
100%
60% 1 WIRE 53% 2 WIRES 31%
OVER 2 WIRES
40%
TRADE
SIZE
mm. in. mm.
2
in.
2
mm.
2
in.
2
mm.
2
in.
2
mm.
2
in.
2
mm.
2
in.
2
6
-
-
-
-
-
769
-
-
97
679
9770
-
0.770
-
-
-
-
Reprinted with permission from NFPA 70-2008, the National Electrical Code
®
Copyright© 2007, National Fire Protection Association, Quincy, MA 02169. This reprinted
material is not the official position of the NFPA on the referenced subject which is represented solely by the standard in its entirety.
NEC
®
T A B L E 3 0 0 . 1 9 ( A ) S P A C I N G S F O R
CONDUCTOR SUPPORTS
SIZE OF WIRE
SUPPORT OF CONDUCTORS IN
VERTICAL RACEWAYS
CONDUCTORS
ALUMINUM OR
COPPER-CLAD ALUMINUM
COPPER
m. ft. m. ft.
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
Not greater than
60
60
Reprinted with permission from NFPA 70-2008, the National Electrical Code
®
Copyright© 2007, National Fire Protection Association, Quincy, MA 02169. This reprinted
material is not the official position of the NFPA on the referenced subject which is represented solely by the standard in its entirety.