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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 :
& P9 e" j3 E9 p0 h b6 |& Q: q1. 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.
8 @. l+ `/ s1 A, [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.
- h8 t# a C6 l; j3. 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)
- ?# u, f7 v9 M$ S* [4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.
$ a% `8 A/ c! J. t* {* V So to make job easy and fast I prefer to use more pipes. 9 J3 U% j9 i' u- F% }$ i; Q
As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray." a& T. m" x" Q, l' E( u9 D2 v$ ?1 Z
The distance of 18 inches is mandatory by SHELL.1 w; u) m5 C9 `3 O; `4 Z
In this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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