Table of Contents
Advertisement
1.2.4
Grounding Electrode Conductor
5HTXLUHGýE\ýFRGHýðý7KHý'DWDZDYHý0DJQHWLFý6\QWKHVL]HUýVKRXOGýEHýJURXQGHGýDFFRUGLQJýWRýWKHý
VDIHW\ýSUDFWLFHVýRIý1(&ýëèíðëçïý$ýORFDOýJURXQGLQJýHOHFWURGHýFRQGXFWRUýLVýUHFRPPHQGHGýLQýDGGLWLRQý
WRýWKHýHTXLSPHQWýVDIHW\ýJURXQGýZKLFKýLVýQRUPDOO\ýUXQýZLWKýWKHýLQSXWýSRZHUýFRQGXFWRUVï
8QLWýFRQQHFWLRQýðý$ýWHUPLQDOýLVýIXUQLVKHGýLQVLGHýWKHýXQLWýIRUýILHOGðFRQQHFWLRQýRIýWKHýJURXQGLQJý
HOHFWURGHýFRQGXFWRUïýõ6HHý)LJXUH éýWKURXJKý)LJXUH æôï
(OHFWURGHý&RQQHFWLRQýðý$VýVKRZQýLQý)LJXUH ìíñýWKHýJURXQGLQJýHOHFWURGHýFRQGXFWRUýLVýUXQýIURPý
WKHý'DWDZDYHýWRýWKHýQHDUHVWýHIIHFWLYHO\ýJURXQGHGýõLQýRUGHUýRIýSUHIHUHQFHôã
ìï %XLOGLQJýVWHHO
ëï 0HWDOýZDWHUýSLSH
êï 2WKHUýPDGHýJURXQGLQJýHOHFWURGH
6L]LQJýRIýWKHýJURXQGLQJýHOHFWURGHýFRQGXFWRUýLVýEDVHGýRQýWKHýVHFRQGDU\ýFLUFXLWýFRQGXFWRUVïý,Qý
DFFRUGDQFHýZLWKý1(&ýõ7DEOHýëèíðäéôñýWKHýPLQLPXPýUHFRPPHQGHGýJURXQGLQJýHOHFWURGHýFRQGXFWRUý
LVýVKRZQýLQý7DEOH éï
Table 4
Grounding Electrode Size
Minimum Grounding Electrode Conductor (AWG)
kVA
208V
100
125
150
200
5HFRPPHQGHGýPHWKRGVýIRUýUXQQLQJýWKHýJURXQGLQJýHOHFWURGHýFRQGXFWRUýõDUUDQJHGýLQýRUGHUýRIýSUHIð
HUHQFHýIRUýV\VWHPýSHUIRUPDQFHñýDVýDFFHSWDEOHýE\ýORFDOýDQGýRWKHUýDSSOLFDEOHýFRGHVôã
ìï 2XWVLGHýRIýFRQGXLWýõZKHUHýQRWýVXVFHSWLEOHýWRýGDPDJHô
ëï ,QVLGHýQRQðPHWDOOLFýFRQGXLW
êï ,QVLGHýQRQðIHUURXVýFRQGXLW
éï ,QVLGHýIHUURXVýFRQGXLWýERQGLQJýWRýWKHýIHUURXVýFRQGXLWýDWýERWKýHQGVñýDVýDFFHSWDEOHýE\ýORFDOýDQGý
RWKHUýDSSOLFDEOHýFRGHVï
Figure 10 Typical Datawave Grounding Arrangement
18
Installation Instructions
Based on 75°C Copper Conductors
Output Voltage
380V
0
4
0
2
00
2
00
0
415V
480V
4
6
2
4
2
2
0
2
575V
6
4
4
2
Advertisement
Table of Contents
