2-16
Planning A ControlNet Cable System
Publication 1786-6.2.1 - April 1988
General Wring Guidelines
)ROORZWKHVHJXLGHOLQHVIRUZLULQJDOO&RQWURO1HWFDEOHV
•
,ILWPXVWFURVVSRZHUIHHGOLQHVLWVKRXOGGRVRDWULJKWDQJOHV
•
5RXWHDWOHDVWPIWIURPKLJKYROWDJHHQFORVXUHVRUVRXUFHV
RIUIPLFURZDYHUDGLDWLRQ
•
,IWKHFRQGXFWRULVLQDPHWDOZLUHZD\RUFRQGXLWHDFKVHFWLRQRI
WKDWZLUHZD\RUFRQGXLWPXVWEHERQGHGWRHDFKDGMDFHQWVHFWLRQVR
WKDWLWKDVHOHFWULFDOFRQWLQXLW\DORQJLWVHQWLUHOHQJWKDQGPXVWEH
ERQGHGWRWKHHQFORVXUHDWWKHHQWU\SRLQW
)RUPRUHLQIRUPDWLRQRQJHQHUDOZLULQJJXLGHOLQHVVHHWKH
,QGXVWULDO$XWRPDWLRQ:LULQJDQG*URXQGLQJ*XLGHOLQHV
SXEOLFDWLRQ
:LULQJ([WHUQDO7R(QFORVXUHV
&DEOHVWKDWUXQRXWVLGHSURWHFWLYHHQFORVXUHVDUHUHODWLYHO\ORQJ
7RPLQLPL]HFURVVWDONIURPQHDUE\FDEOHVLWLVJRRGSUDFWLFHWR
PDLQWDLQPD[LPXPVHSDUDWLRQEHWZHHQWKH&RQWURO1HWFDEOHDQGRWKHU
SRWHQWLDOQRLVHFRQGXFWRUV<RXVKRXOGURXWH\RXUFDEOHIROORZLQJ
WKHVHJXLGHOLQHV
:LULQJ,QVLGH(QFORVXUHV
&DEOHVHFWLRQVWKDWUXQLQVLGHSURWHFWLYHHTXLSPHQWHQFORVXUHVDUH
UHODWLYHO\VKRUW$VZLWKZLULQJH[WHUQDOWRHQFORVXUHV\RXVKRXOG
PDLQWDLQPD[LPXPVHSDUDWLRQEHWZHHQ\RXU&RQWURO1HWFDEOHDQG
&DWHJRU\FRQGXFWRUV
:KHQ\RXDUHUXQQLQJFDEOHLQVLGHDQHQFORVXUHURXWHFRQGXFWRUV
H[WHUQDOWRDOOUDFHZD\VLQWKHVDPHHQFORVXUHRULQDUDFHZD\VHSDUDWH
IURP&DWHJRU\FRQGXFWRUV
Cable in a contiguous
metallic wireway or conduit?
Route your cable
at least:
From noise sources of this strength:
Yes
0.08m (3”)
Category-1 conductors of less than 20A
0.15m (6”)
ac power lines of 20A or more, up to 100 KVA
0.3m (12”)
ac power lines greater than 100 KVA
No
0.15m (6”)
Category-1 conductors of less than 20A
0.3m (12”)
ac power lines of 20A or more, up to 100 KVA
0.6m (24”)
ac power lines greater than 100 KVA
Route your cable at least
this distance:
From noise sources of this strength:
0.08m (3”)
Category 1 conductors of less than 20A
0.15m (6”)
ac power lines of 20A or more, up to 100 KVA
0.6m (24”)
ac power lines greater than 100 KVA
