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1、 CONTENTS SEPRI Permit-Required Confined Spaces(1910.146)2004 Confined space means a space that: (1) Is large enough and so configured that an employee can bodily enter and perform assigned work; and (2) Has limited or restricted means for entry or exit (for example, tanks, vessels, silos, storage b
2、ins, hoppers, vaults, and pits are spaces that may have limited means of entry.); and (3) Is not designed for continuous employee occupancy. (1) (2)( ) (3) DEFINITION S AS28652009Confined space 1986 (a) (b) (c) (d) DEFINITIONS CSA Z1006-10-2010Management of Work in Confined Spaces First Edition A co
3、nfined space is defined as a workspace that is fully or partially enclosed, is not designed or intended for continuous human occupancy and has limited or restricted access, exiting or an internal configuration that can complicate provisions of first aid, evacuation, rescue or other emergency respons
4、e services. DEFINITIONS (AQ3028-2008) 3.1 confined spaces () (GBZ/T 205-2007) 3.3 confined spaces , ( ) (201371) , ,(), ,() () () () () () () () () () - - 3- 4- 3 234 1 1 2 3 () VDRH LF SEPRI 01098 228 370 436 323 382 321 252 214 173 58 88 109 81 94 82 66 51 39 0 50 100 150 200 250 300 350 400 450 5
5、00 2001 2002 2003 2004 2005 2006 2007 2008 20091-8 200120098 3 6682699300 2001-2009 300 SEPRI 12 30% 16 15 12 56 57 41 1 3 2 12345 SEPRI 1 2 2 19.5 23.5 20 19.5% 3. 2. 1. 50 c 2 2 2 ( ) CO TWA=30ppm STEL=60ppm 2 2 (CO) () 10 30 CO TWA=30ppm STEL=60ppm 2 2 (ppm) 50 8 200 , 3 600 , 1 10002000 30 , 1.5
6、 , 2 20005000 , 30 2 2 20106293 3 200783 H2S 1000mg/ 2 2 H2S 2 2 (mg/m3) 0.012-0.03 10 8 70150 1-2 200300 1 500760 1560 ( ) H2S 2 2 2007893 2 3 2 2 (1) 2 2 (2) O2 23.5% VOL. ! 21.0% VOL. 19.5% VOL. ! 2 2 O2 ? () 19.5 15 19 12 14 , 10 12 , 8 10 , 6 8 8 100% 4 - 6 40, 2 2 O2 2 2 2008626 938 6.3% CO2 C
7、O2 (% vol.) 1 (8) 1-2 , 3 , 4 , 5 6 , 8 , 2 2 2 2 EX 2 2 2 2 LEL UEL LEL UEL EX % H2475 NH315.527 CO12.574.2 CH45.314 C2H6312.5 C2H43.132 C2H22.281 C6H61.47.1 C7H81.46.7 C2H4O3.080.0 (C2H5)O1.948.0 CH3CHO4.155.0 (CH3)2CO3.011.0 C2H5OH4.319.0 CH3OH5.536 C4H8O22.59 515 6.970 2 2 CO . 76 . 11 12 13 . .
8、 50 . . 72 73 74 75 0 1 . 74.2 12.5 2 CH4 7 17 3 4 5 6 8 9 10 11 12 13 14 15 16 0 1 2 UEL LEL 2 2 COH2CH4 69586022254.535.8 26292.03.00.10.435.072.0 63662.03.012.574.0 606313150.50.87.875.07 2731710161821.567.5 2 3 50 3 SEPRI OSHA ANSI/ASSE Z117.1-2003 NIOSH No.80-106 API2217A AS 2865-1995 CSA Z1006
9、-10-2010 CP84:2000 Permit-Required Confined Spaces(1910.146) 1910.146(c)General requirements ( ) 1910.146(d)Permit-required confined space program Permit-Required Confined Spaces(1910.146) 1910.146(g)Training 1910.146(h)Duties of authorized entrants (5) 1910.146(i)Duties of attendants (10) 1910.146(
10、J)Duties of entry supervisors (6) 1910.146(K)Rescue and emergency services 1910.146(l)Employee participation 1910.146(e)Permit system AS28652009Confined space ()( ) ( )( (19.5-23.5) ) CSA Z1006-10-2010Management of Work in Confined Spaces First Edition 2.4.1 (a) (b) 2.4.3 3.3.1 (a) (b) (c) (d) (e) (
11、f) GB8958-2006 GB12301-1991 GB12942-2006 GBZ/T205-2007 AQ 30282008 GB 2893 GB 2894 GB 3787 GB/T 3805 (ELV) GB 3836.1 1: GB 9448 GB 50016 GB 50140 () GBZ 2.1 1 GBZ 2.2 2 GBZ 158 GB/T 18664 GB/T 18883 () DB11-852.1-2012 1 DB11-852.2-2013 2 DB11-852.2-2013 3 59 2013218 201371 : 1. 2.( ) 3.() 4.() 5. 6.
12、 7. 8.() 9.(30 ) 10. 11. 12.() 13. 14.() 15.() AQ2015 1) 2) 3) 4 SEPRI 12 43 59 ( ) “” 1 2 3 1 1 12 12 34 5 12 34 1 23 36V4 56 22 12 34 5 12 34 1 23 36V4 56 31 12 34 5 12 34 1 23 36V4 56 41 12 34 5 12 34 1 23 36V4 56 1 1 NO.3 NO.1 2 A1B1 123 1234 123 36V4567 2014.3.15 3 12345 1234 123 36V456 2014.3.15 1 1234 1234 123 36V456 2 12345 1234 123 36V456 NO.2NO.8 2014.3.18 2014.3.18 2 () / / / / 11 1.
