0 installation, Mp e – Magnum Energy Magnum Panel (MP Series) User Manual
Page 64
© 2011 Magnum Energy, Inc.
Page 57
3.0 Installation
2.
Multiple Connections to Ground - Single Electrode (Method 2): When the AC and
DC service panels are near each other, then the AC Grounding Electrode Conductor (GEC–AC) and
DC Grounding Electrode Conductor (GEC–DC) can be connected to a single grounding electrode
(see Figure 3-32). In this method — since there are multiple connections to the DC grounding
electrode — the size of the DC grounding electrode conductor cannot be smaller than the largest
conductor in the DC system (usually the battery-to-inverter cable).
3.
Multiple Connections to Ground - Multiple Electrodes (Method 3): This method uses
a separate grounding electrode for the DC system and the AC system (see Figure 3-33). In this
method — since there are multiple connections to the DC Grounding Electrode (GEC–DC) — the
size of the DC grounding electrode conductor cannot be smaller than the largest conductor in the
DC system (usually the battery-to-inverter cable).
The DC Grounding Electrode (GE–DC) must be bonded to the AC Grounding Electrode (GE–AC)
to make a grounding electrode system; this Bonding Conductor (BC) cannot be smaller than the
largest grounding electrode conductor, either AC or DC.
Figure 3-32, Multiple Connections to DC Ground Rod (Method 2)
Figure
3-33, Multiple Connections to DC Ground Rod (Method 3)
DC
S
OURCE
M
AIN
AC P
ANEL
.
H
O
T
1
.
N
E
U
T
.
G
N
D
.
H
O
T
2
.
D
C
S
IDE
.
A
C
S
IDE
MP E
NCLOSURE
AC
S
OURCE
AC and DC sides shared
DC Electrical
System
AC Electrical
System
Grounding System
.
G
N
D
.
P
O
S
.
N
E
G
GBB
GE
GEC-AC
GBB
M
AGNUM
I
NVERTER
GEC-DC
SBJ
SBJ
GC-DC
GC-AC
HOT 1
HOT 2
NEUT
BAT
BAT
EG
C
EG
C
DC
S
OURCE
M
AIN
AC P
ANEL
.
H
O
T
1
.
N
E
U
T
.
G
N
D
.
H
O
T
2
.
D
C
S
IDE
.
A
C
S
IDE
MP E
NCLOSURE
AC
S
OURCE
DC side dedicated
AC side dedicated
DC Electrical
System
AC Electrical
System
Grounding System
.
G
N
D
.
P
O
S
.
N
E
G
GBB
GE
GEC-AC
GE
GBB
M
AGNUM
I
NVERTER
GEC-DC
BC
SBJ
SBJ
GC-DC
GC-AC
BAT
BAT
HOT 1
HOT 2
NEUT
EG
C
EG
C