Siemens 7SA513 - Page 232

2SHUDWLQJ LQVWUXFWLRQV6$ 9

&*&
:LWK VLQJOHSROH DXWRUHFORVXUH WKH GHDG WLPH 5$5
732/ DGGUHVV  PXVW EH ORQJ HQRXJK WR HQ
VXUH WKDW WKH IDXOW DUF LV H[WLQJXLVKHG DQG WKH DLU VXU
URXQGLQJ WKH DUF LV GHLRQL]HG VR WKDW DXWRUHFOR
VXUH FDQ EH VXFFHVVIXO %HFDXVH RI WKH GLVFKDUJH
DQG UHFKDUJH RI WKH FRQGXFWRU FDSDFLWDQFHV WKLV
WLPH LQFUHDVHV ZLWK WKH OHQJWK RI WKH OLQH &RQYHQ
WLRQDO YDOXHV OLH EHWZHHQ  V DQG  V
$GGUHVV  5$5 732/ LV RQO\ UHOHYDQW ZKHQ
WKH 8

SURFHVVLQJ IHDWXUH LV XVHG WR GLVFULPLQDWH WKH
XQIDXOWHG OLQHV GXULQJ VLQJOHSROH UHFORVXUH ,Q WKHVH
FDVHV DGGUHVV  GHWHUPLQHV WKH GHDG WLPH
ZKLFK LV YDOLG DIWHU WKH OLQH KDV EHHQ LGHQWLILHG E\ WKH
8

SURFHVVLQJ IHDWXUH DV WKH XQIDXOWHG OLQH ,W FDQ
WKHUHIRUH EH YHU\ VKRUW  V LV VXIILFLHQW 7KLV LP
PHGLDWH UHFORVXUH LV LQGHSHQGHQW RQ ZKHWKHU DG
GUHVV  KDV EHHQ VHW WR 8 352& 32/(
:,7+ 8 RU 8 352& 32/( : 2 8 1HYHU
WKHOHVV LW PXVW EH REVHUYHG WKDW D VOLJKWO\ KLJKHU
VLQJOHSROH GHDG WLPH DGGUHVV  PXVW EH VHW DW
WKHOLQHHQGZLWK8

LQWHUURJDWLRQ 8 352&
 32/( :,7+ 8 LW VKRXOG EH KLJKHU WKDQ WKH
GHDG WLPH RI WKH OLQH HQG ZLWKRXW 8

LQWHUURJDWLRQ
SOXV WKH FLUFXLW EUHDNHU FORVLQJ WLPH SOXV DSSUR[L
PDWHO\  WR  PV
:LWK WKUHHSROH DXWRUHFORVXUH DGGUHVV  WKH
VWDELOLW\ RI WKH QHWZRUN LV WKH PRVW LPSRUWDQW FRQVLG
HUDWLRQ 6LQFH WKH GLVFRQQHFWHG OLQH FDQ QR ORQJHU
SURGXFH DQ\ V\QFKURQL]LQJ SRZHU RQO\ D VKRUW GHDG
WLPH LV SHUPLWWHG LQ PRVW FDVHV &RQYHQWLRQDO YDOXHV
OLH EHWZHHQ  V DQG  V ,I WKH GHYLFH LV HTXLSSHG
ZLWK WKH V\QFKURFKHFN IXQFWLRQ D ORQJHU WLPH PD\
RIWHQ EH WROHUDWHG
7KH SRVVLELOLWLHV IRU WKH WUHDWPHQW RI PXOWLSOH DQG
HYROYLQJ IDXOWV KDYH EHHQ GHVFULEHG LQ GHWDLO LQ 6HF
WLRQ  7KH UHFRJQLWLRQ RI DQ HYROYLQJ IDXOW FDQ
EH PDGH GHSHQGHQW XSRQ D WULSSLQJ FRPPDQG RU
XSRQ IDXOW GHWHFWLRQ GXULQJ WKH GHDG WLPH DGGUHVV
 7KH UHDFWLRQ WR HYROYLQJ IDXOWV LV VHW LQ DG
GUHVV  EORFNLQJ LQ WKH FDVH RI DQ HYROYLQJ IDXOW
HLWKHU RFFXUV $/ : $<6 LH ZLWK HDFK HYROYLQJ IDXOW
RU 1(9(5 DW DOO RU EORFNLQJ RFFXUV RQO\ DIWHU WKH IDXOW
LV GHWHFWHG DIWHU WKH GLVFULPLQDWLRQ WLPH !7',6&5,0
ZKLFK KDV WR EH VHW LQ DGGUHVV  %ORFNLQJ LQ
WKHVH FDVHV RFFXUV HYHQ ZKHQ WKUHHSROH DXWRUH
FORVXUH LV SHUPLWWHG
$OVR IRU WKH WUHDWPHQW RI HYROYLQJ IDXOWV DQG IRU WKH
GLVFULPLQDWLRQ WLPH 7',6&5,0 WKH VWDELOLW\ RI WKH
QHWZRUN LV RI WKH XWPRVW LPSRUWDQFH ,Q DGGLWLRQ WKH
G\QDPLF EXUGHQ RI WKH JHQHUDWRUV PXVW EH WDNHQ
LQWR DFFRXQW LQ WKH FDVH RI IDXOWV FORVH WR D SRZHU
VWDWLRQ )RU WKH GLVFULPLQDWLRQ WLPH 7',6&5,0 DG
GUHVV  LW LV RQO\ PHDQLQJIXO WR FKRVH D YDOXH
ZKLFK LV VPDOOHU WKDQ WKH GHDG WLPH IRU VLQJOHSROH
$5 5$5 732/ DGGUHVV 
)LQDOO\ DGGUHVV  GHWHUPLQHV ZKHWKHU WKH SUR
WHFWLRQ UHOD\ VKRXOG LVVXH D WKUHHSROH WULS ZKHQ
GXULQJ WKH GHDG WLPH RI D VLQJOHSROH DXWRUHFORVH
F\FOH UHFORVXUH LV EORFNHG HJ EHFDXVH RI GHWHF
WLRQ RI DQ HYROYLQJ IDXOW
 5$5 352*
7+5((32/(
6,1*/(32/(
$XWRUHFORVH SURJUDP IRU WKH ILUVW $5 F\FOH 5$5
7+5(( 32/( IRUHDFKW\SHRIIDXOW
WKUHHSROH DXWRUHFORVXUH
6,1*/( 32/(  VLQJOHSROH $5
IRU PXOWLSKDVH IDXOWV QR UHFORVXUH
WDNHVSODFH$5EORFNHG
6,1*/(  IRU VLQJOHSKDVH IDXOWV VLQJOHSROH
7+5(( 32/H $5 IRU PXOWLSKDVH IDXOWV WKUHH
SROH $5
6,1*/(7+5((32/
 8 352&
,1())(&7,9(
32/( :,7+ 8
8VH RI WKH 8

SURFHVVLQJ IRU GLVFULPLQDWLRQ RI WKH
IDXOWHG OLQH
,1())(&7,9(   8

SURFHVVLQJ LV LQHIIHFWLYH
 32/( :,7+ 8   8

SURFHVVLQJ ZLWK 8

LQWHUURJD
WLRQ
 32/( :2 8   8

SURFHVVLQJ ZLWKRXW 8

LQWHU
URJDWLRQ
32/( :2 8
www . ElectricalPartManuals . com