STCP 08-2 Issue 004: Circuit Live Trip & DAR Tests - National Grid

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STCP 08-2 Circuit Live Trip & DAR Tests Issue 004 – 24/06/2009 Appendix A: Process Diagrams Note that the Process Diagrams shown in this Appendix A are for information only. In the event of any contradiction between the process represented in this appendix and the process described elsewhere in this STCP, then the text elsewhere in this STCP shall prevail. S T C P 8 -2 C irc u it L iv e T rip & D A R T e s tin g E x te rn a l NGET T O A f f e c t e d U s e r s / a ffe c te d T O c o n ta c te d A g r e e t o P r o te c ti o n T e s t s ? N o E n d Y e s Page 6 of 9 N G E T re c e iv e s r e q u e s t I s T e s t s p r o g r a m m e r e q u i r e d ? N o A n y a u to is o la tio n in v o lv e d ? N o I s t h e r e U s e r i m p a c t ? Y e s 2 .1 1 N G E T c o -o rd in a te s w i t h a f fe c te d U s e r s o r a ffe c te d T O a n y te s tin g th a t c o u l d a ffe c t th e ir e q u i p m e n t o r n e t w o r k N G E T a p p ro v e s O u t a g e r e q u e s t ( s ) a n d T e s t s p r o g r a m m e ? Y e s N o O u ta g e (s ) i n c l u d e d i n T O G A d a t a b a s e R e q u e s t s s t a te : - C irc u it L iv e T rip & D A R te s tin g - c irc u it in v o lv e d - 'i n - s e r v i c e ' b o o k i n g s Y e s Y e s N G E T /T O c o n s id e r r e s to ra tio n im p l ic a tio n s N o T O s u b m i ts a n O u ta g e r e q u e s t/ p r o p o s a l fo r C ir c u it L iv e T rip & D A R (in a c c o rd a n c e w ith S T C P 1 1 -1 O u ta g e P la n n in g ) T O s u b m i t s p r o g r a m m e T O s u b m its O u ta g e r e q u e s t f o r a u t o is o la te d P la n t a n d A p p a r a t u s T O id e n tifie s P la n t a n d A p p a r a tu s to b e t r i p p e d b u t w i t h o u t D A R fa c ilitie s T O m a y c h o o s e to r e v i s e a n d r e - s u b m i t O u t a g e r e q u e s t a n d / o r T e s t s p r o g r a m m e E n d D i s p u te r e s o l u t i o n p r o c e s s m a y b e i n itia te d G o to B o n P a g e 2
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STCP 08-2 Issue 004: Circuit Live Trip & DAR Tests - National Grid

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