AuxiliaryFramingandBracingRequirements.docVIP

COMMON SYSTEMS NETWORK FACILITY AUXILIARY FRAMING AND BRACING REQUIREMENTS Contents Page 1. GENERAL 1 2. AUXILIARY FRAMING 2 Description 2 Types Of Auxiliary Framing 2 3. LAYOUT 2 A. General 2 Primary Auxiliary Framing 3 Secondary Auxiliary Framing 3 Distance Between Levels 3 Ends Of Auxiliary Framing 3 Vibration Dampening 4 B. Low Type Auxiliary Framing 4 C. High Type Auxiliary Framing 5 D. Customer Premises 5 4. SUPPORT 5 A. General 5 Temporary Framing 6 5. BRACING 7 A. General 7 B. Low seismic risk areas 7 C. High seismic risk areas 8 General Rigidity 8 Resistance To Lateral Movement 8 D. Overhead Braced Equipment 9 E. Self-Locking Nuts 9 6. RETROFIT OF EXISTING  ENVIRONMENTS 9 Above Removed Equipment 9 Above Working Equipment 10 7. SUPPORT OF CABLE AND WIRE 10 8. FIGURE REFERENCES 11 1. GENERAL 1.01 This section provides the guidelines and requirements for engineering and installing auxiliary framing in network equipment environments. The guidelines and requirements shall be followed when providing auxiliary framing for new and for growth to existing network equipment environments, and when all or part of a network facility’s equipment is removed and the auxiliary framing above the removed equipment will remain in place. 1.02 This Section was reissued to: replace Fig. 28 and 29 text in 7.01 with miscellaneous; remove unique SBC product descriptions from illustrations; add Fig. 20B to 20G references in Fig. 20A; reverse orientation of Fig. 20E. 1.03 The following is a list of terms and their meanings as used in this section: (a) Auxiliary Framing (a.k.a. framing) Paired channel iron used for the support of equipment, cable rack and apparatus. (b) Braces/Bracing That which is used to add rigidity to the auxiliary framing. (c) Ceiling Insert The means used to attach threaded fasteners