 鲜花( 0)  鸡蛋( 0)
|

楼主 |
发表于 2010-4-18 15:27
|
显示全部楼层
本帖最后由 jack_lai 于 2010-4-18 16:39 编辑 / m' h: ^' [% \% C* @: L% }& [! W- E
4 L- b7 W8 I& v( d, L 9# jjj18 1 q8 X/ ?, z z1 z/ B/ p5 X
Please be aware :1 f9 O- N( Y4 }: z; U' K+ E
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.
" q8 C* r8 R) i, |, J/ l* h* w8 L2. 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.
, c8 ]9 m1 [1 E0 v% S3. 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) ' D4 [) n$ @ l; |
4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.
, w' B/ i% ]) a' S& w5 X So to make job easy and fast I prefer to use more pipes. * K% j* ?, j7 U
As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.
( c5 G) ]6 t5 b The distance of 18 inches is mandatory by SHELL.
! E& y1 X2 N9 U+ ]) IIn this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
-
|