Hazardous (Classified) Locations

E
Allowable Distance
Replies
1
Views
21
kwired
kwired
C
Storing Flammable in Freezer
Replies
3
Views
340
sameguy
S
F
Is this area considered hazardous area?
Replies
14
Views
372
iceworm
iceworm
R
Solenoids in Class II Div 2
Replies
24
Views
837
rbalex
rbalex
Sajid khan
Fuel storage capacity of main reserve
Replies
2
Views
154
rbalex
rbalex
L
NEMA rating for Enclosures
Replies
6
Views
768
powerpete69
powerpete69
Mr. Pickle
Splice in Lift Station Wet Well
Replies
1
Views
270
tom baker
tom baker
I
Interlock battery charger 'boost' with ventilation fans in Battery Room, CID1.
Replies
6
Views
737
rbalex
rbalex
I
Naptha and API RP 500
Replies
2
Views
442
Isaiah
I
H
Latching contactor used for EPO
Replies
4
Views
586
hillbilly1
H
R
Class II Div 2 Motor
Replies
5
Views
644
rbalex
rbalex
F
Propane Tanks
Replies
2
Views
399
rbalex
rbalex
A
repair garage
Replies
4
Views
530
rbalex
rbalex
I
LFMC 1/2" Instr connections in CID2 NEC 250.118 (6)(b)
Replies
5
Views
606
rbalex
rbalex
N
Area Classification Boundary/Physical Barrier
Replies
9
Views
960
nhee2
N
C
Remote I/O
Replies
5
Views
661
rbalex
rbalex
D
UL1203
Replies
5
Views
722
dgalenski@glauber.com
D
J
CID2 conduit to cable tray transition
Replies
6
Views
610
Jim1959
J
K
What is meant by "Explosion Protected"?
Replies
9
Views
1K
don_resqcapt19
don_resqcapt19
J
CID2 seal offs at motors
Replies
1
Views
323
rbalex
rbalex
wireman1
lbs for class2 division2
Replies
1
Views
325
rbalex
rbalex
W
LED retrofitting inside of c1d1 exp.proof globe lights
Replies
1
Views
328
rbalex
rbalex
wireman1
hazard location
Replies
2
Views
394
rbalex
rbalex
C
NEC 2017 Article 514.11(A) - Motor Fuel Dispensing Facilities
Replies
1
Views
260
rbalex
rbalex
P
Are microdistilleries considered Class 1 Div1 or Div 2
Replies
19
Views
3K
StarCat
StarCat
C
Distillery classification
Replies
5
Views
445
Crazyhorse263
C
T
NEMA4X enclosure
Replies
4
Views
316
rbalex
rbalex
wireman1
hazardous locations ques
Replies
1
Views
205
rbalex
rbalex
P
Class 1 Division 2 Electrical Panel Installation Question
Replies
3
Views
259
rbalex
rbalex
H
Minor repair garage
Replies
5
Views
249
rbalex
rbalex
F
Waste oil desposal tank inside of a shipping container
Replies
3
Views
238
rbalex
rbalex
S
514.11 Emergency electrical disconnect sign information
Replies
6
Views
232
rbalex
rbalex
E
Siemens HMI suitable for Class I Div 2 in type 4 X enclosure not rated Class I Div 2
Replies
4
Views
245
MrJLH
M
fifty60
Ventilation
Replies
8
Views
293
StarCat
StarCat
fifty60
Transitioning to Zone Approach from Class/Division
Replies
4
Views
195
fifty60
fifty60
steve66
Major Repair Garage
Replies
7
Views
303
kwired
kwired
P
Zone and Division Classification of a 420# LPG Cylinder
Replies
8
Views
233
pturcotte
P
N
Winery Production Area
Replies
7
Views
987
hbiss
hbiss
D
Fan Discharge of a Class 1 DIV2 Rated Area
Replies
4
Views
649
StarCat
StarCat
G
MOV (Varistors) in Class I Zone 2 PLC Panel
Replies
1
Views
432
rbalex
rbalex
J
Propane pump seal off locations
Replies
1
Views
693
rbalex
rbalex
S
Pole Mounted Yard/Parking Luminaries / Lighting in Class I Div 2 Group D
Replies
0
Views
908
smarteng
S
E
NFPA496 Purge & Pressure System Control Power, C1D2
Replies
2
Views
817
rbalex
rbalex
D
24 VDC POWER IN JUNCTION BOX WITH SIGNALS IN C1/D2 NI AREA
Replies
1
Views
867
rbalex
rbalex
C
class 1, div 2 installation
Replies
5
Views
2K
Dave12150
D
R
Flex I/O module in Class II, Div 2 enclosure
Replies
2
Views
1K
rambopg
R
I
Non-Incendive Circuit - ESD Pushbutton
Replies
5
Views
2K
rbalex
rbalex
A
Class 1 Division 1 Ex Cert Process
Replies
1
Views
1K
rbalex
rbalex
J
C1D1GC
Replies
5
Views
2K
rbalex
rbalex
R
Class 1 Div 2 Junction Boxes
Replies
1
Views
1K
rbalex
rbalex
V
Fuel gas catalytic heater inside the building
Replies
2
Views
1K
kwired
kwired
J
Thoughts on the hazardous classification of an extraction process using hexane.
Replies
11
Views
5K
JeffKiper
J
J
Looking for class I Div 2 stepper motors
Replies
0
Views
1K
Jackie13
J
A
Class 1 Div 2?
Replies
6
Views
2K
A-A-Ron
A
D
Junction Boxes in Hazardous Locations
Replies
1
Views
1K
rbalex
rbalex
K
NEC 500.7(K)
Replies
7
Views
2K
rbalex
rbalex
R
Pouring conduit seal offs
Replies
2
Views
1K
Red gypsy
R
M
Table 1 API 500 10.1.3
Replies
4
Views
2K
rbalex
rbalex
H
Fireworks Storage Warehouse
Replies
7
Views
3K
zbang
Z
J
Pin anchor removal
Replies
4
Views
2K
kwired
kwired
A
Cameras Near Class 1 Div 1 Areas
Replies
6
Views
2K
rbalex
rbalex
B
Oil Storage Room (Flammable Storage, Class I, Divisioin II, Group D
Replies
4
Views
2K
rbalex
rbalex
D
class 1 division 2 boundaries
Replies
7
Views
2K
kwired
kwired
M
Class I Div I, Low voltage cabinet installation (intrinsic safety)
Replies
5
Views
2K
rbalex
rbalex
S
Hazardous Location and Intrinsically Safe Barrier Requirement for Simple Apparatus'
Replies
1
Views
1K
rbalex
rbalex
N
Hermetically sealed or class I div 2 rated fuse required
Replies
2
Views
1K
don_resqcapt19
don_resqcapt19
K
changing a space classification temporarily
Replies
8
Views
2K
rbalex
rbalex
M
Conduit Seals rated for Horizontal installation
Replies
1
Views
1K
rbalex
rbalex
F
Class I Div I wireless mouse.
Replies
2
Views
1K
Forqnc
F
F
Class 1 Div 2 guidance on sealing the conduits
Replies
2
Views
1K
rbalex
rbalex
E
main switch on industrial control panels for use in hazardous locations
Replies
1
Views
1K
petersonra
P
K
Class II, Division 2 Groups F & G Motor with Variable Frequency Drive
Replies
1
Views
996
rbalex
rbalex
J
Classified Location Bonding
Replies
6
Views
2K
kwired
kwired
C
Ingress Protection junction boxes in Class I Division 2
Replies
5
Views
2K
rbalex
rbalex
E
Air Handlers
Replies
0
Views
902
EverydayElectrician
E
G
small valve free pass
Replies
9
Views
2K
kwired
kwired
K
Class II, Division 1, Group G - Wireless Mouse
Replies
5
Views
3K
tunglete
T
M
Volume Argument
Replies
2
Views
2K
romex jockey
romex jockey
I
501.15(E)(1) exception 2
Replies
2
Views
2K
Isaiah
I
fifty60
Persistence of Hazardous Area Classifications
Replies
11
Views
4K
MRKN
M
Q
Manhole/Vault
Replies
1
Views
2K
quantum
Q
E
N4X Junction Box
Replies
2
Views
1K
petersonra
P
C
Use of Portable Electronic Devices near Classified Locations
Replies
4
Views
1K
rbalex
rbalex
I
430.32(B)
Replies
9
Views
2K
rbalex
rbalex
M
class 1 div 2 wiring methods
Replies
5
Views
2K
rbalex
rbalex
S
Underground conduit on CNG site.
Replies
9
Views
3K
sentrybryan
S
I
Dry type transformers in classified areas
Replies
1
Views
1K
rbalex
rbalex
I
bonding in CID2 enclosures
Replies
3
Views
1K
Isaiah
I
J
Lift station classified area
Replies
23
Views
4K
oldsparky52
O
G
Class I, Division I Seal-Off Controversy
Replies
17
Views
3K
Wire-Smith
Wire-Smith
J
Hazardous equipment certification
Replies
4
Views
2K
petersonra
P
C
Luminaires in Class II Div 2
Replies
2
Views
1K
don_resqcapt19
don_resqcapt19
J
NEMA 1 WIREWAY
Replies
2
Views
1K
Jim1959
J
N
Tunnel SUMP PIT Classification
Replies
8
Views
2K
rbalex
rbalex
G
Training courses
Replies
5
Views
3K
IntrinsicSafety
I
fifty60
NFPA 497----Open Transfer System Vs Closed Transfer System
Replies
7
Views
2K
IntrinsicSafety
I
S
Captivate Contacts in Class I Div 2
Replies
2
Views
2K
IntrinsicSafety
I
M
Separation of Different Intrinsically safe circuits
Replies
2
Views
2K
IntrinsicSafety
I
fifty60
Gas Dispersion Software
Replies
1
Views
1K
dkidd
D
N
501.15(a)(4) Exception 1
Replies
1
Views
1K
MAC702
M
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