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Tiu chun Nh nc
Tiu chun Nh nc
bin bo an ton v in TCVN 2572 - 78
( C hiu lc t ngy 1-1-1980 )
Tiu chun ny p dng cho cc bin bo c ch v du hiu c in p , t trn cc dng c , my, kh c , cc thit b in, vv... bo cho ngi trnh khi nguy him do in gy ra khi vn hnh, lm vic v i qua gn nhng thit b .
1. Phn loi v kch thc
1.1. Cn c vo cc i tng cn bo hiu, bin bo gm :
Bin bo chung - dng nhng ni c nhn vin vn hnh thit b in cng nh ngi n hoc i qua;
Bin bo ring - dng nhng ni ch c nhn vin vn hnh thit b in lm vic.
1.2. Cn c vo thi gian s dng, bin bo gm :
Bin bo c nh - t trong mt thi gian khng qui nh;
Bin bo lu ng - t trong mt thi gian nht nh.
1.3. Cn c vo kch thc ( a x b ) , tnh bng mm, bin bo c phn thnh nhm sau :
a - 360 x 240 e - 145 x 72
b - 240 x 150 g - 105 x 52
c - 240 x 120 h - 72 x 36
d - 210 x 210 i - 52 x 26
k - 36 x 18
1.4. Cn c vo ni dung li trn bin, bin bo c phn theo bng1
. Bng 1
KiuLi trn binChc nngLoiKch thcCh thchHnh v
1234567
1aXCm vo ! in p cao nguy him cht ngiChungC nh306 x 240C du hiu c in p v s ngi1
2aX
2b
2kCm tro ! in p cao nguy him cht ngiChungC nh
Lu ng
Khun360 x 240
240 x 150
360 x 240C du hiu c in p v hnh s ngi2,3
4
5
3aX
3bCm li gn ! C in nguy him cht ngiChungC nh
Lu ng360 x 240
240 x 150C du hiu c in p6
7
4aXDng li ! C in p nguy him cht ngiChungC nh360 x 240C du hiu c in p8
5aXCm s ! C in nguy him cht ngiChungC nh360 x 240C du hiu c in p9
6aXCh ! Pha trn c inChungC nh360 x 240C du hiu c in p10
7bCm ng in ! C ngi ang lm vicRingLu ng240 x 15011
8bCm ng in ! C ngi ang lm vic trn dy dnRingLu ng240 x 15012
9bCm m! C ngi ang lm vicRingLu ng240 x 15013
( Tip theo bng 1 )
1234567
10cCh ! in p ngcRingLu ng240 x 150-14
11c ni tRingLu ng240 x 120-15
12dLm vic ti yRingLu ng240 x 210-16
13dTreo ti yRingLu ng210 x 210-17
14dVo hng nyRing Lu ng210 x 210-18
15cX
15gX
15hX
15iX
15kXChungC nh145 x 72
105 x 52
72 x 36
52 x 26
36 x 18C du hiu c in p19
20
Ch thch : 1. Trong trng hp cn thit, cho php v thm hnh s ngi nhng phi m bo yu cu trong iu
2.6 ca tiu chun ny;
2. Ch v s ct ( ct 1 - k hiu ) biu th 1 n 15 - Phn theo li ghi ct 2 ( bng 1) ;
a,b,c,d,e,g,h,i,k - Phn theo kch thc ;
K - Loi bin c nh;
K - Khun. Khun l loi bin c khot thng tt c cc ch vit , du hiu c in p v
khung ca bin
1.5. Ni dung trnh by v kch thc bin bo c qui nh trong bng 2- 4 v trn hnh v 1 - 20.
Bng 2
mm
KiuHnhabcmefgth1h2h3klDns1s1d
4aX, 2aX
3aX,4aX
5aX1, 2, 6,
8, 936024040350401212 -16035244010-4536
2b, 3b
v 8b4 v 12240150252570101001002520255-4321
7b v 9b11v 13240150701010025202515-4321
12d, 13d
v 14d16,17,1821021055121002471201701034
Cn li Theo hnh v
mm Bng 3
KiuHnh vabcefghd
15eX
15gX
15hX
15lX
15kX16 v 1772
52
36
26
18145
105
72
52
3627
20
15
10
718
13
9
6
55,0
4,5
4,0
3,0
2,55,0
4,5
4,0
3,0
2,5110
80
55
40
253
3
2
2
2
1.6. Bin bo phi c sn mu ph hp vi qui nh trong bng 4
Bng 4
KiuNnChDu hiu c in pHnh s ngiVng trnKhung
1aX, 2aX, 2KTrngen tien- ti
26, 3aX, 3b, 4aX,5aX, 6aXTrngen ti-- ti
7b, 8b v 9bTrngen--- ti
10c v 11cVngen---en
12d,13dv 14dXanh l cyen--TrngTrng
15eXn 15kXTrng- ti hoc en---
1.7. S dng cc bin bo phi ph hp vi nhng qui nh trong cc qui phm an ton lao ng hoc cc ti liu khc c lin quan v an ton lao ng.
1.8. Khi t lm cc bin bo phi ch r kiu, loi theo qui nh trong tiu chun ny.
2. Yu cu k thut
2.1. Bin bo phi ch to theo nhng yu cu ca tiu chun ny v cc ti liu k thut c lin quan khc.
2.2. Bin bo c nh v khun c ch to bng thp tm cht lng thng, c chiu dy khng nh hn hn 0,5 mm.
2.3. Bin bo c nh kiu 15eX n 15kX dng gn trn thit b in, kh c, cc dng c o in c th ch to bng vt liu nh nhm, ng l, thp l hoc bng vt liu khc nhng phi m bo tui th ca n trong iu kin vn hnh ca sn phm, ng thi phi m bo r rng v c r nt ch. C th dng loi c l hoc khng c l. Cho php ch v du hiu c in p trc tip ngay trn sn phm nhng kch thc phi ph hp vi tiu chun TCVN 2049 - 77 theo chiu cao
h qui nh bng 3 ca tiu chun ny.
2.4. Bin bo phi c gn chc bng bu lng, vt, inh tn hoc gn trc tip vo sn phm. Kch thc ca cc l bt bu lng, vt c qui nh trong cc bng v hnh v ca tiu chun ny.
2.5. Bin bo lu ng c php ch to bng kim loi l, cht do hoc bng vt liu khc c chiu dy t 2 - 3 mm. Cc vt liu ny khng b h hng do tc dng ca kh quyn.
2.6. Hnh s ngi phi m bo cc yu cu sau :
Mu ca cc hc mt, mi, rng v ng vin ca s phi l mu en;
on u ca du hiu c in p phi cho xuyn qua hc mt phi, nhng hnh s ngi khng c che khut u mi tn ca du hiu, ng thi phi cha mt on r t ch hc mt phi n ch gp khc c du hiu c in p;
Hnh s ngi phi c kch thc tng ng vi du hiu c in p.
2.7. Phn li ca bin bo phi vit bng ch in thng ng theo tiu chun Ti liu thit k ( TCVN 6 - 74 ).
Hnh dng v kch thc ca du hiu c in p theo
TCVN 2049 - 77.
2.8. Bin bo khng c c nhng vt sn si , cnh sc.
2.9. Bin bo c nh v khun phi sn c hai mt, trc khi sn phi lm sch ht vt bn , vt g.
2.10. Sn phi u m v bn, b mt lp sn phi nhn.
2.11. Bin bo kiu 2aX phi bt chc chn cao t 2,5m n 3m so vi mt t.
2.12. Trn ct b tng cho php dng khun 2k th hin trc tip ni dung ca bin bo v sn mu qui nh trong bng 4.
2.13. Pha trn bin bo loi lu ng phi c hai l theo kch thc qui nh trong bng 2 lun dy treo thch hp.
3. Qui tc nghim thu
3.1. Cc bin bo phi c b phn kim tra k thut bn sn xut kim tra theo yu cu ca tiu chun ny.
3.2. Kim tra kch thc v ch vit ca bin bo bng dng c o c chnh xc n 1 mm. Khi kim tra, ly 10% s Bin bo ca l , nhng khng c t hn 3 chic.
3.3. Kim tra cc iu 2.7, 2.8 v 2.1. bng mt thng . Kim tra tng bin bo ring bit.
4. Bao gi, ghi nhn, bo qun v vn chuyn
4.1. Bin bo phi c bao gi trong hm g hoc hm cc tng, gia cc bin bo phi c lp giy lt. Khi lng ca hm xp bin bo khng qu 20 kg.
4.2. Trn mi hm c ghi nhn, bao gm cc mc sau:
- Tn hoc du hiu qui c ca c s sn xut;
- Kiu bin bo
- Khi lng, kg;
- K hiu v s hiu ca tiu chun.
4.3. Bin bo c bo qun trong phng iu kin bnh thng.
4.4. Bin bo c vn chuyn bng mi phng tin.
Kiu 1aX Hnh 1
Kiu 2aX Hnh 2
Kiu 2aX Hnh3
Kiu 2b Hnh 4
Kiu 2K Hnh 5
Kiu 3aX Hnh 6
Kiu 3b Hnh 7
Kiu 4aX Hnh 8
Kiu 5aX Hnh 9
Kiu 6aX Hnh 10
Kiu 7b Hnh 11
Kiu 8b Hnh 12
Kiu 9b Hnh 13
Kiu 10c Hnh 14
Kiu 11c Hnh 15
Kiu 12d Hnh 16
Kiu 13d Hnh 17
Kiu 14d Hnh 18
Bin bo Bin bo
c l gn c nh khng c l gn c nh
Kiu 15eX n 15kX
Hnh 19 Hnh 20
11