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Simon Storage, Fluorobenzene Gantry / Tank 24
Instrument & Electrical Installation Tender Package
DOCUMENT REF: SI347001.INS
ISSUE: B DATE: 13.10.97
PAGE: 6 OF 23
2.5
Segregation of Service
All cable supports and cables shall be prevented from coming into contact with process
equipment and piping by a spacing of 150mm.
Cables operating at a voltage of 110V AC and above shall be segregated from cables
operating at a voltage of 24V DC and below.
2.6
Fixings
No structural steelwork shall be drilled for any purposes without the approval of the
Engineer. In general, all fixing to steelwork shall be by means of studs welded to the
steelwork or by clamp brackets or hook bolts. Permission shall be obtained from the
Engineer for any other type of fixing. Any protective coating damaged by welding, etc.
should be made good by a method approved by the Engineer.
The supply and fixing of all support brackets, clamps and spacers and any other steelwork,
whether or not shown in detail on the drawings or otherwise, which may be required for the
proper and effective fixing of any equipment shall be considered to be included in the
material and labour for the supply and fixing of that equipment, unless this work is
specifically detailed in the Schedules.
Where PVC sheathed cable is used, cable cleats and supports shall be as recommended by
the cable manufacturer. They shall be designed to avoid any damage to the PVC sheaths by
sharp edges and excess pressure.
Cables erected on walls or steelwork shall, so far as is practicable, be so supported that no
flexing can occur. Generally cables shall be supported on cleats which clamp the cables to
prevent longitudinal movement.
Light weight equipment and conduit saddles may be fixed to the building structure by
means of screws in metal or plastic plugs. Wood or fibre plugs shall not be used.
Fixing to brickwork shall be made in the bricks and not in the joint. If it is not possible to
make all the fixings in the brickwork, then the equipment shall be positioned to enable the
upper fixings to be made in the brickwork.
Shot fixing bolts shall not be used.