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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 2 g9 ~3 P' h( w8 B$ r
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Please be aware :
4 L" @& ?1 O6 c; D2 K- `( d1. 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, ?8 l3 |( N2 _1 G2. 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.
5 E0 A0 Y6 _& S5 N7 W& D, O3. 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) ' r, f" v, Y( f* Y; ]; b m4 |6 U
4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time." D0 V3 ?9 S* v1 ^/ w" r d9 V5 E
So to make job easy and fast I prefer to use more pipes.
7 i4 d. T# t9 `* L% u1 O' F" ~ As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray.
, s4 P3 W! Q( \- `6 X4 v The distance of 18 inches is mandatory by SHELL.
: T4 b$ c* n7 \( }1 L& N* wIn this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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