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发表于 2010-4-18 15:27
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本帖最后由 jack_lai 于 2010-4-18 16:39 编辑
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Please be aware :( w) L0 z1 f3 A8 I
1. In order to reach the instruments which are above the Grid Floor A ,see F1 above, cables coming from the Branch Tray C have to pass the Grid Floor A.
, W; V# \/ v* @2. If using basket tray to conduct cables, you have to make a hole at the Grid Floor A by cutting a piece of stuff from the Grid Floor A. then the basket trays can go through the Grid Floor A.
* e: K2 x6 e3 f3. IF using a pipe to conduct cables, because the size of the pip is one inch you can make a small hole at the Grid Floor A by a iron bar(撬棍)
; {- X j6 o0 S& e) [9 u9 ^4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.
?) Y4 x4 \4 `4 ~0 B So to make job easy and fast I prefer to use more pipes. " |7 j+ y& T9 P% c1 m2 P A9 V
As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.
5 _1 I9 C0 e, w/ p( x The distance of 18 inches is mandatory by SHELL.& A& w8 m8 z7 c" E
In this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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