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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 :
{" h% K6 u% S' z% t7 ], F1. 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.
4 q) ?, `" U! Q9 c' p% C$ w2. 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. " v4 D( | V) b/ m4 Q
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)
, ^9 t$ x- A2 X+ N9 i4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.
9 ]- D% ^5 c/ B; k+ Y9 Y So to make job easy and fast I prefer to use more pipes.
# R, ^- R& B, @' I' O4 p" ]: H0 o As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.
9 G% z j, w7 M7 j The distance of 18 inches is mandatory by SHELL.
7 O9 k2 F2 Y- ~2 A. g6 pIn this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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