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PERMFILE65702
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PERMFILE65702
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Entry Properties
Last modified
8/24/2016 11:11:27 PM
Creation date
11/20/2007 9:00:52 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981044
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 16 MSHA ROOF AND VENTILATION PLANS
Media Type
D
Archive
No
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TYPICAL OVERCAST CONSTRUCTION DETA{LS <br /> <br />~. <br />;, <br />B , _ ~, q <br />• <br /> <br />Cross-section A - A': <br />~ ---- <br />l <br />Y <br />~ ~i <br />x <br />r=.~"ro s4" <br />X = 50"ro 2/O" <br /> <br />Cross-section B - B': <br />M = 24 " l0 60" <br />N = /08" l0 420" <br />-23- <br />Overcosl to bs consfrucled of <br />~ sfee/, or ony other non- <br />combusfib/e malaria/s. <br />£ffeclive dole of this <br />slalemenl is Moy, /985. <br />-~-' A// malaria/s sho// hove o <br />me/ling point of al /eost <br />2000° F. <br />
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