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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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9# jjj18
" q) J0 }; k, Z0 \7 f0 zPlease be aware :
' \( w% h$ l; E( R2 V2 b1. 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.
Y& L2 y8 x; ?; O4 g( `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. - l% h1 K; r; ?$ ]
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)
5 g+ t( K! a: _7 e4. While you finish one hole for the tray, you can finish 10 holes for the pipe with the same time.( U" U8 ^: k, i, t9 T, u9 [" ]% v7 L
So to make job easy and fast I prefer to use more pipes.
& o. Z" s3 T6 G: }4 [; {- q/ I As shown on F2, see the Ins A. If x or y is >18 inches I cut a hole for the tray., x; ~7 h3 b/ k* S% j
The distance of 18 inches is mandatory by SHELL.
8 [( k0 A5 s" q3 D, IIn this case about 85% instruments above the Grid Floor A have been serviced by pipes. |
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