ML19212A220
| ML19212A220 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 07/09/1979 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19207B153 | List: |
| References | |
| REGGD-01.039, REGGD-1.039, NUDOCS 7908230543 | |
| Download: ML19212A220 (5) | |
Text
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EG- /.39 ry Guide 1.29, "Meusekeeping Impact of ?::: Osed Revision 1 to Zerf ato O
?:ver ?las:s" Requiremen:s For Nucles:
32ch2 cur d ANSI N4f.2.3-1973, "2cusneeping Regula:ory Guide 1.39, which endorses
?cuer ?laats," vas published in During :he Construction Phase of Nuclear d, both the require-Tae paide ende sed, as an acecp able netho March 1973.
=ents (indicated by the verb "shall Scue uncertainty has s: ands:d.
the subjec:
ve:S "should") con:ained i:
vith such an endorse =en:.
to the NRO. staff's inten
'J. M. Merrison with regar an N45-2 Subce==.1: ee =eeting when arisen reg 2la-surdaced 2:
This proble is made to follev a particul2:
- hat when a ce=10:en:
requirements and the poin:ed ou:
he regula:ory paide endorses both t to foll:w the ory guide and tha:
c:._ i en:
d the reco==end.i.: ices included in a s:2ndar, standard's ::: = ends:10:s zan h
regul'atory guide, in eff ec:, = des t e so interpre:ed :he
~
that sone c::panies had no:
I: beca=e apparen:
Ile ::i
('J. J.
As a resul:, a le :er f::: General dato:7 for was received asking regulatory p ides.
ary 10, 1975, b
to A. Gia:busso, dated Fe r Also at: ached iv
- he Gilbert) is a:: ached.
A c py of this le :e:
dated to L'. Gilber clarifica ica.
Minegua le::e:
NRC reply :s Ge:eral Elec:ric (R. 3.
vere undertaking a reav'
'~at e in che reply, we s:a:ed we s:andards, particularly I:
May 6, 1975).
hich endorse.65 d
of some of the regula:vry gui es w de:er=ine vtather i: =ight not be app in the Quality Assurance area, :o of :he guidelines since of at least se e priate :o qualify cur endorse =en:
A copy of this cor espondence 1:por:an:c.
not all have subs:antive safety A p 7B08230
L is attached. Also attached is an ex:er;: f :n :he ninutes of the January 21.
1976, Interoffice quali:7 Assurance ~ask Ter:e ace:ing -shich uclines :he
~
to:al proj ec:. The revisi n :o Eagula:::/ Cuide 1.39 is in: ended to cl'.:ify the NRC's position on the requirenents cr.d guidelines included in 32;SI N45.2.3-1973 and on other areas of the scant'ard as described bel:v.
Signific2n: Chenees with Associated 7alue/ineter_Assessnen:
Chanee 1_:
? cpesed Regulatory ?:si:en C.2 add:ssses the "should" and "shall" p::blen. As discussed in the backg::end section of this inpac:
state 4 :, there has been sene enfusion anong the users of Regula:Ory Guides as to NRC's intent when a guide end:ses both the guidelines and requirenants of the standard. Regulatory Guide 1.39 is a guide which c ntains such an endorsanent. To clarify the si:uacion regarding Regu-la:ory Guida 1.39, :he _:vo 3 # d="--s (indicated by the verb "shculd"),
both contained in subdivisien 2.2.3 of ANSI N45.2.0-1973, have been eval-uated as to their inportance to sa' 2ey.
Both guidelines vere :: sidered
- o have subs::ntive saf ery i=pc::ancs and.re discussed bel:2.
Guideline 1: Subdivision 3.2.3, " Tire ?:otecti:n and ?reven:ica," of ANS N45.2.3-1973 s:2:ss, "? ire wa :hes during and innedia:ely follouing velding opera:icns should be specified." 7olu=e 4, Su11 ding Cens::ue ion Tacili-ties, of the KF?A National 71:2 Codes, ref erenced in :his subdivisica of..
the standard, states that a cerni: syste= shall be used which specifies
- hst a fire wat:hnan with an extinguisher be pested during a > <- ediately folleving cutting and..iding operati:ns.
- i:h consider 2:ica fo :he P00R GRl8lNAL ww
,-- a
..,-,--r<,,
.u.. a.
....-_-,--...u..... r.. a c,, a. s,,..,.
-r-,
c.,as
,-s--
>e
-- c.
2.a.g.
the p cpesed gu,,e as S.3 eA
, o s J a a.. F.'.a. dOes not andQ:se f0 Cone I 4.
J
=
spec'- < a ion of fire va: hes dur'ag ced
- e a 2n2ad, -'-
re:erence,,n.s to Safe:7-i==ediately following welding operati0ns is censidered importan:
3-a e :c-- -e--
s
.g.
uideline quoted above shou 32 g...e.--- o....
va'
- This cuideline ensures tha: fire watches duziug and i=:ediately
~
fo11: wing velding ope:2: ices are spect,, ed
'3- "'ose cae-a*# cts ther e the r - -
occurrence and spread of fire could be poten~'#'y damaging :o cade:7-related equip:ent or s:::::urgs.
Incae : There is no i= pac: since this guideline was pa : of the Rag"lat;r7 2
?csi:ica of Regula o 7 Guide 1.39.
- :=cti:n and 2: eve: 100" Cf ANSI cuic..ine,:
au:d4i<_ 4_on 3..,.y.
"re.
5 a
at N45.2.3-1973 sta:es, "? e-fire ? 20 i 3 8hC"1d * **** ** **
l rotection erece u:=s o < s
~-~~<-as whi-b-shall include s
..._n = o
- < e a
-'s " As par: cf the fire p:2:serica p :cedures A
con--
evacuame:n o:
r
- <-. are considered or ins::ue:i:ns, plans to be used,=.s-e eve..
o 2
- 3,,4 da e '~ucced 2bove should be i:por:an: to sa:ety.
- e:e C.->
-w.
-s followed.
< s -.. <- g a.-
This guideline es ablishes that p =cacures I a Value:
4-<-a e or prevent possible dz=2ge o safe:7-rela:ed prepared,n o.a e-of a fire-equip =ent or scrue:ures in the even:
!=cace: There is no inpac: s, :e
.ua-- s -.- el' ~ vas ?a: o f
.s-e,' e 5,, 3 -. *.'.
-~~
?csition of Eegula:37 Guide 1.29.
~'~
~
?02DMIM I
e ' j G LJ it]Nej i
4 cd
- he i:le and :hroughou:
.O.
du e he :ern "va:s:-:: led" used in :he t w 'd 'C Chance 2.
5 e r.-
of Se ;uide has been dele:ed.
,c
/.
.s. s f -..
?
- e.~.:
ida applicable to all.uclear n
e c =
0[
~his chan;e nahas the * ::cesed gu sc pe of A !S! !i45.2.0-1973 e
e %r
'!alu e:
.e ith the pcuer plan:s, which is consisten; w 3 v. 2 4
f the proposed guide being Lu J. C This ch:=ge elimina:es the restri::icn o Since the applica-j 'T;
- 1 &. <
~neace:
pcuer plants.
. *d v y
l s:
applicable :aly to va:er-cooled :uc e s is consiscent vr 4 -)
l 4f.2.3-1973 :o all tu: lear power p an as a result of 1
bili:y of.CSI ::
vould be no i= pac:
I'
/*
- a here
%f with cu -~~ ' ' ~-sing p:3c: ice, t this change.
2 3 1973 2diterial C*,2=res resula:::y pesi: ion which nade !!45.. -
~he vo.: ding of the i i ntion was nodified :o recognize the l m t Chance 1:
applicable :o de operacion phase i g :he operations phase.
- e nodi-in the applica:ie:
'f :he standard dur n during the opera-f N45.2.3-1973 fica:i:n clarifia : hat the applica:ica os phase activities cenparab i
tiens phase is 11:1:ed to operat c:
hase.
occurring during the cons::u::icn p a
is expe :ed cha:
"i:
?:cpesed ?.agulatory ?csition C.2 s:nces f fire 7:c-Chance 2_:
vill be published en the subject o separa:e regulatory guide In this regard, the requirer.ents and plancs.
- ee: ion for nuclear pcue:
f !.'IS! 'i45. 2.2-1973 per:sining :s fire guidelines of subdivision 3.2.3 o d in conjunctice with the regulatory protecnica and preventica should be use A regulatory guida far blica:icn."
guide on fire procteti:n upon i:s pu
?.
!!:e Pro ec:'on 20: nu:laa: pcue: p1:n:3 $3,7,g,n 3 >..,.,,,, e,,,-, n _ e,-.
., u a to the impce:2nce of :his ::pi, and the very li=i:ad scepe p ccen ad 1.
- 3! 'l45.2.3-1973,
- he 2:ove quoted posi:1:n was inco rcra.d <.
...e 2'
r d
- s <
orcaose ues.
s -- o
....g o
m..e users a t:enticrt th:: : ora detailed and JPecific guid = e.ril; 3e available on the subj ecc of fera prevention.
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