NFPA 75-1999 Standard for the Protection of Electronic Computer/Data Processing Equipment.
4-2.3 The records storage room shall be used only for the stor- age of records. All other operations, including splicing, repair- ing, erasing, reproducing, cataloging, and so forth, shall be prohibited in this room. Exception: Spare media shall be permitted to be stored in this room if they are unpacked and stored in the same manner as the media con- taining records. 4-3 General Storage. 4-3.1 Paper stock, inks, unused recording media, and other com- bustibles within the computer room shall be restricted to the absolute minimum necessary for efficient operation. Any such materials in the computer room shall be kept in totally enclosed metal file cases or cabinets or, if provided for in individual machine design, shall be limited to the quantity prescribed and located in the area designated by the equipment manufacturer. 4-3.2 Reserve stocks of paper, inks, unused recording media, and other combustibles shall be stored outside of the com- puter room. 4-3.3 The space beneath the raised floor shall not be used for storage purposes. 4-3.4* Abandoned cables shall not be allowed to accumulate. Cables not identified for future use shall be removed. Chapter 5 Construction of Computer Equipment 5-1 Computer Equipment. 5-1.1 Equipment and replacement parts shall meet the requirements of UL 478, Standard for Electronic Data-Processing Units and Systems, or UL 1950, Standard for Safety of Information Technology Equipment Including Electrical Business Equipment. 5-1.2 Listed equipment shall be considered as meeting the requirements of 5-1.3.
5-1.3* Each individual unit shall be constructed in such a way that by limiting combustible materials, or by use of enclosures, fire is not likely to spread beyond the unit where the source of ignition is located. Automatic protection shall be provided for all units not so constructed. 5-1.4 Enclosures of floor-standing equipment having external surfaces of combustible materials of such size that might con- tribute to the spread of an external fire shall have a flame- spread rating of 50 or less. (See NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials.) Equipment conforming to the requirements of UL 478, Stan- dard for Electronic Data-Processing Units and Systems, or UL 1950, Standard for Safety of Information Technology Equipment Including Electrical Business Equipment, shall be considered as meeting the requirements of 5-1.4. 5-2 Construction Features. 5-2.1* Cables. Interconnecting cables and wiring between units, power cords, plugs, and connectors shall be listed. These components shall be considered as part of the com- puter system and suitable for installation on the floor or under a raised floor as described in Section 3-4.
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