 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 : q) Q' o" ]. X8 U1 g2 f
9 @) N4 Z. s _/ E, } 9# jjj18
% K) {/ J0 a h6 v' _Please be aware :* J6 h" C: G F* h) L6 }
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. - h) k* z& } D; Y$ _
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.
. }2 W( t" t* a: l3. 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)
4 g# A T- b! |4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.
, a& Z4 h4 z, g8 y5 y So to make job easy and fast I prefer to use more pipes.
# s. t9 W4 e8 c: _+ z, T0 P, Y) o As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.9 x' E: ~7 p$ f5 c3 A6 g
The distance of 18 inches is mandatory by SHELL.+ Z% ?% x1 v- a: A3 f
In this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
-
|