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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 :
) d$ u/ F- W8 B( A) h1 b8 @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.
6 A" u+ S+ C* m2. 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. ' Y5 g* ~5 V" c, _/ `+ j7 x, C
3. 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) ( }7 T2 _; ^8 }& O; h
4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.* U5 b; A. p4 O4 g P
So to make job easy and fast I prefer to use more pipes.
. Y# u) t# F1 f( V, c9 I As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.
/ w6 g3 ^' Y+ w" Y5 @% ` The distance of 18 inches is mandatory by SHELL.
8 s& ^; `( ~2 ^9 P( ~" \In this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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