Raised Floor Requirements - HP StorageWorks XP10000 Disk Array Site Prep Manual

Raised floor requirements
The computer room floor must be able to support the total weight of the equipment as
well as localized weight at each caster or foot of the equipment cabinets. A common
method of preparing an adequate floor for a computer room is to construct a raised
floor over the building floor. A raised floor:
• Allows weight to be spread evenly across the floor
• Provides an under-floor area for running interconnecting cables conveniently
and unobtrusively
• Allows optimum distribution of conditioned air
WARNING!
If metal is used in the construction of the raised floor, ensure that there is a common
ground connection between the raised floor and main floor to avoid possible build
up of different voltage potentials. Failure to comply can result in serious injury to
personnel and damage to equipment.
Requirements for raised floors:
• Raised floor access ramps must not exceed a 10 degree slope.
• Use a raised floor system (254 to 305 mm, 10 to 12 inches) for the most
favorable room air distribution system.
• Grid panels must be at least 450 x 450 mm (17.72 x 17.72 in).
• The floor must have a load rating between 300 and 500 kg per square meter
(553 to 921.7 lb per square yard, or 61.4 to 102.4 lb per square foot). The
maximum floor loading at any point is 500 kg (1102.3 lb).
30 Site requirements