EasyManua.ls Logo

Siemens NXAIR P - 10.5 Ground Connections

Siemens NXAIR P
88 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
Installation NXAIR P
 ,167$//$7,211;$,53$16,6*,0
Õ 5HLQVWDOOFRYHUVRIFXVWRPHUZLULQJGXFWV
Õ &RQQHFWFRQWUROZLUHVDFFRUGLQJWRFLUFXLWGLDJUDPV
Connecting Interunit Wires (Bus Wires)
7KHLQWHUXQLWZLULQJLVWKHHOHFWULFDOFRQQHFWLRQIURP
VHFWLRQWRVHFWLRQ
Õ &RQQHFWRUSOXJLQWKHEXVZLUHVDWWKHEXVZLUH
WHUPLQDOEORFNLQWKHORZYROWDJHFRPSDUWPHQW
10.5 Ground Connections
$FRPPRQJURXQGEXVLVLQFRUSRUDWHGLQDOOXQLWVIRU
SURSHUO\JURXQGLQJWKHHTXLSPHQWDIWHULQVWDOODWLRQ
7KHJURXQGEXVH[WHQGLQJWKURXJKWKHVZLWFKJHDULV
DFFHVVLEOHLQWKHSULPDU\FDEOHDUHDRIHDFKXQLWDQG
DOVRLQWKHFLUFXLWEUHDNHUFRPSDUWPHQW
3URYLVLRQIRUFRQQHFWLQJWKLVJURXQGEXVEDUPXVWEH
PDGHLQVXFKDPDQQHUWKDWDUHOLDEOHJURXQG
FRQQHFWLRQLVREWDLQHG
Connecting the ground bus bar
7KHJURXQGEXVEDUPXVWEHFRQQHFWHGIURPVHFWLRQ
WRVHFWLRQZLWKOLQNV2QHHQGRIHDFKEXVEDUXQLWWR
EHFRQQHFWHGFDUULHVWKHUHTXLUHGOLQN
Õ &RQVXOWODWHVW1DWLRQDO(OHFWULFDO&RGHIRUJURXQG
FRQQHFWLRQVWDQGDUGV
Õ 3URYLGHDFFHVVWRWKHFRQQHFWLRQFRPSDUWPHQW
Õ &KHFNFRQWDFWVXUIDFHVRIJURXQGEXVEDUEUXVKLI
UHTXLUHGDQGDSSO\DWKLQILOPRI6KHOO9DVHOLQH
'$%JUHDVH
Õ (QVXUHWKDWJURXQGEXVEDUWRFLUFXLWEUHDNHU
FRPSDUWPHQWLVDOVREROWHGWRLQWHUXQLWEDU
Õ 5HPRYHWKHSUHDVVHPEOHGFRQQHFWLQJEROWIURP
WKHJURXQGEXVEDUMRLQW
Õ ,QWKHFRQQHFWLRQFRPSDUWPHQWRIWKHDGMDFHQW
VHFWLRQGHWDFKWKHSUHDVVHPEOHGFRSSHU
FRQQHFWLQJOLQNDQGUHILWLWDVFRQQHFWLQJHOHPHQW
RIWKHJURXQGEXVEDUEHWZHHQWZRVHFWLRQV
Tightening torques
Grounding the Switchgear
7RJURXQGWKHVZLWFKJHDUOLQHXSWKHJURXQGEXVEDURI
WKHOHIWDQGULJKWHQGVHFWLRQPXVWEHFRQQHFWHGWR
WKHVWDWLRQJURXQG,QDGGLWLRQHYHU\ILIWKVHFWLRQPXVW
EHFRQQHFWHGWRWKHVWDWLRQJURXQGVWDUWLQJIURPWKH
OHIWDQGULJKWHQGVHFWLRQ
Fig. 33:
Õ 3URYLGHDFFHVVWRWKHFRQQHFWLRQFRPSDUWPHQWE\
UHPRYLQJWKHORZHUSDUWLWLRQZDOOEHWZHHQWKH
FLUFXLWEUHDNHUFRPSDUWPHQWDQGWKHFRQQHFWLRQ
FRPSDUWPHQWLQPHWDOFODGVHFWLRQV
Õ 7RDFFRPRGDWHWKHFDEOHIRUWKHVWDWLRQJURXQG
PDNHDFXWRXWLQWKHIORRUFRYHUDWWKHOHIWFRUQHU
DFFRUGLQJWRWKHFURVVVHFWLRQRIWKHVWDWLRQJURXQG
DQGWKHORFDWLRQRIWKHJURXQGJULGFRQQHFWLRQ
Õ 3XOOWKHVWDWLRQJURXQGLQJLQWRWKHFRQQHFWLRQ
FRPSDUWPHQWWKURXJKWKHFXWRXW
Õ &RQQHFWWKHVWDWLRQJURXQGDFFRUGLQJ
Õ 6HDOWKHFXWRXWLQWKHIORRUFRYHUWRSUHYHQWHQWU\RI
YHUPLQHWF
10.6 Temporary Ground Connections
7RFRQQHFWJURXQGLQJDQGVKRUWFLUFXLWLQJIDFLOLWLHV
WKHUHDUHWZRSRLQWVIRUVFUHZW\SHFRQQHFWLRQZLWK
GLIIHUHQWVL]HVSURYLGHGDWWKHJURXQGEXVEDULQWKH
FLUFXLWEUHDNHUFRPSDUWPHQWERWWRPOHIWLQVLGHWKH
VHFWLRQRQHKH[DJRQDOEROW0RQH0
Bolt size Tightening torque (minimum)
Nm ft-lb
0  
0  
0  
a
/HIWVHFWLRQVLGHLQVLGHRIFRQHFWLRQFRPSDUWPHQW
s
&XWRXWLQWKHIORRUFRYHU
d
JURXQGEXVEDU
f
3DUWLWLRQZDOOEHWZHHQFLUFXLWEUHDNHUFRPSDUWPHQWDQG
FRQQHFWLRQFRPSDUWPHQWLQPHWDOFODGVHFWLRQV

Related product manuals