Bonding and Grounding

George Stolz
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Grounding & Bonding: The Big Picture Post
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0
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92K
George Stolz
George Stolz
N
How to measure DC resistance between the common point of connection and earth ground shall not exceed 3 ohms.
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12
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234
zbang
Z
TheGingerElectrician
Metal Panel Pools
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6
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170
Mystic Pools
Mystic Pools
1
installing a new ground rod too close the old one
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14
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245
charlie b
charlie b
P
Hydro electric Generation
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12
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333
Power Solutions
P
H
15 amp outlet
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5
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149
powerpete69
powerpete69
T
Triplex to subpanel in detached garage?
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9
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195
Coppersmith
Coppersmith
J
Marine grounding
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3
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152
tom baker
tom baker
G
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Open Neutral's Effect on a Receptacle GFI, Plus Advice on a Horrorshow of an Installation
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6
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232
Little Bill
Little Bill
J
3 or 4 Wire required.
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4
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145
LarryFine
LarryFine
T
Two wire gfci
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3
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91
LarryFine
LarryFine
F
Grounding Medium Voltage Feeder
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4
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157
FaradayFF
F
H
Ufer Ground questions
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22
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2K
dinotone
D
V
zinsco sub panels
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7
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405
kwired
kwired
E
Service/Building transformer bonding and grounding
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4
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426
lkdiaZ
L
R
A Correct Statement About Grounding?
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9
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520
electrofelon
electrofelon
N
3000a main service
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4
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257
nickelec
N
E
grounding battery tanks for oil field
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3
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1K
Sfg9972
S
R
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How to ground a fiberglass tank??
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20
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14K
Sfg9972
S
J
Need an equipment ground?
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16
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557
bwat
B
S
Plastic/Fiberglass Ceiling Boxes -ground lug
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12
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551
rcarroll
rcarroll
M
SSBJ not required between grounded Meter and Disconnect?
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3
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216
LarryFine
LarryFine
S
Ground Wire Required?
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4
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281
stansrs
S
jxofaltrds
2 Ground Rods - Discussion
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18
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1K
bkludecke
B
P
SEU cable for a additional panel
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4
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326
Besoeker3
B
M
Bonding a residential shed with sub-panel.
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6
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410
LarryFine
LarryFine
I
Separately Derived Systems bonding/grounding NEC 250.30(A)(1) and 250.30(A)(2)
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3
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292
tom baker
tom baker
F
Building Ground Ring
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13
Views
755
infinity
infinity
T
Two Panels, One Facility
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8
Views
517
LarryFine
LarryFine
T
Question About 250.66(A)
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7
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462
kwired
kwired
6
Stainless Steel screw for bonding
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4
Views
408
kwired
kwired
R
New Hot Water Tank
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45
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2K
kwired
kwired
H
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Service equipment
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27
Views
2K
roger
roger
F
Meter Mains
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4
Views
291
GerryB
G
A
Main Bonding Jumper Location
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1
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252
david
D
D
Common GEC copper bus bar 250.30A(6)a
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10
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483
tom baker
tom baker
tom baker
Swimming pools, boat docks snd ground rods
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4
Views
317
kwired
kwired
H
tank gnd
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5
Views
353
electrofelon
electrofelon
A
30 volts on Metal water piping system.
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13
Views
460
AC\DC
A
M
Separately derived systems share EGC?
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8
Views
371
kwired
kwired
T
GEC Question
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14
Views
515
kwired
kwired
H
  • Locked
gec gnd ring
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1
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189
roger
roger
I
2017 - 250.50
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8
Views
269
Isaiah
I
S
Cold Water Ground
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6
Views
359
infinity
infinity
N
GEC attachment
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4
Views
217
kwired
kwired
R
Complete Ground System Testing
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2
Views
237
brian john
brian john
I
Bonding LFMC, process instrument connections, CID2 locations
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0
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121
Isaiah
I
N
CEE
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4
Views
178
kwired
kwired
H
Neutral bond nonmetallic
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2
Views
190
hhsting
H
H
Grounded conductor
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11
Views
245
kwired
kwired
H
  • Locked
EGC required
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3
Views
201
roger
roger
H
Question 1000V over gnd
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2
Views
179
electrofelon
electrofelon
G
Voltage drop
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4
Views
210
Besoeker3
B
K
CSST Bonding
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12
Views
1K
KyawaComm
K
M
Is a neutral required on the line side of a wye 3 ph line filter
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4
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151
jaggedben
J
A
Inspector wants 2 ground rods
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12
Views
405
norcal
N
S
new panel in existing no ground system
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11
Views
316
al hildenbrand
al hildenbrand
M
Meter Socket Grounding
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29
Views
432
ptonsparky
P
M
Bonding CATV/Telecommunications to meter socket?
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6
Views
147
mobo
M
M
EGC Sizing
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5
Views
183
Muneepit
M
P
Grounding in 2 places?
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5
Views
192
roger
roger
A
Fire Fighting Pump set, Equipment Grounding Conductor
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2
Views
113
Devin Hanes
D
P
Propane Tank grounding.
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2
Views
142
Cow
C
B
Ground Fault Protection for traffic gate
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4
Views
175
kwired
kwired
mbrooke
Grounding outlet and switch box
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42
Views
1K
mbrooke
mbrooke
A
Exterior Switchboard Grounding
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2
Views
144
Adaetus
A
S
Using water hydrant for GES?
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2
Views
126
kwired
kwired
I
Bonding to Rebar
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13
Views
311
kwired
kwired
4
  • Locked
Self Grounding
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1
Views
117
charlie b
charlie b
I
Insulation type for typical grounding conductors?
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19
Views
273
K8MHZ
K8MHZ
D
Interpretation of 250.30 B 1
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1
Views
120
infinity
infinity
M
Bond wire - Fiberglass pool
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19
Views
323
kwired
kwired
W
Grounding a raised house with meter/combo seperately mounted on a pole.
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7
Views
226
Woodselectric
W
M
Grounding of a sink basin
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37
Views
972
david
D
A
3 wire feeder from fused service disconnect to main panel bonding
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3
Views
232
david
D
B
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250.24(A)(2)
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1
Views
111
tom baker
tom baker
B
  • Locked
250.24(A)(2) Additional grounding for outdoor transformer
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1
Views
121
Dennis Alwon
Dennis Alwon
H
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250.186(B) and 250.184
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1
Views
124
roger
roger
P
250.30(A)(1) Exception No. 2
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1
Views
133
jaggedben
J
B
Service entrance bonding.
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8
Views
280
texie
T
J
Location of a concrete encased electrode
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6
Views
197
jdiv
J
benmin
208 to 480 step up transformer GEC
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1
Views
90
infinity
infinity
F
Ground Rod Inspection Well
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1
Views
195
tom baker
tom baker
H
Bare ground touching neutral
Replies
8
Views
350
Dennis Alwon
Dennis Alwon
R
Trailer Chassis Grounding
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2
Views
181
tortuga
tortuga
tom baker
Antenna Bonding and Grounding - attn Florida Electricians
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1
Views
122
mopowr steve
mopowr steve
M
553.8
Replies
2
Views
85
tortuga
tortuga
M
Ground Riser
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10
Views
160
infinity
infinity
S
Antenna and Dish Grounding Question
Replies
6
Views
190
tom baker
tom baker
mbrooke
Ground wire in MC cable
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22
Views
522
mbrooke
mbrooke
B
Sub-panel water bond
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4
Views
140
Dennis Alwon
Dennis Alwon
J
Condulet bonding
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12
Views
223
infinity
infinity
E
Ground Loop Conductor Size
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5
Views
147
MrJLH
M
J
Mike Holt in philly.
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2
Views
113
jksmith82
J
E
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Floating ground in Bathroom
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1
Views
114
ActionDave
ActionDave
C
what to do with the neutral from a wye 480V source on a delta-Wye transf
Replies
3
Views
143
RD35
RD35
I start fires
Generator transfer switch in meter socket
Replies
13
Views
254
Hv&Lv
H
R
  • Locked
Pool Bonding Help
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1
Views
84
roger
roger
G
Bonding when rebar is in concrete and structure is bonded to rebar
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8
Views
208
Hv&Lv
H
G
Ground wire
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3
Views
185
infinity
infinity
infinity
Why Do They Do this?
Replies
11
Views
323
texie
T
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