1、NFPA 1221- 2016 Edition Standard for the Installation, Maintenance, and Use of Emergency Services Communications Systems TIA Log No.: 1302 Reference: 9.6.2.1.1.1 and 9.6.2.1.4 Comment Closing Date: October 19, 2017 Submitter: Thomas J. DiBernardo, Davie, FL 1. Revise 9.6.2.1.1.1 to read as follows:
2、9.6.2.1.1.1 The feeder and riser coaxial cables shall be rated as plenum cables that match the buildings fire rating and pathway survivability. 72:24.3.13.8.1.1 2. Revise 9.6.2.1.4 to read as follows: 9.6.2.1.4 The connection between the riser and feeder coaxial cables shall be made within an the 2
3、hour rated enclosure matching the buildings fire rating and pathway survivability, and passage of the feeder cable in and out of the 2 hour rated enclosure shall be fire-stopped to 2-hour rating the buildings fire rating and pathway survivability. 72:24.3.13.8.4 Substantiation. During the transition
4、 of two-way radio enhancement systems from NFPA 72 to NFPA 1221, the text regarding pathway survivability does not apply as the same prior fashion. Therefore, the Technical Committee for 1221 presented clarifying language for the next proposed edition. The technical committee voted in favor of inclu
5、ding this change in the 1stdraft, and public input was sought. The technical committee believes that this language needs immediate attention until the next edition is issued to assist AHJs and contractors in understanding the pathway survivability as it pertains to two-way radio enhancement systems.
6、 Emergency Nature. The proposed TIA intends to correct a circumstance in which the revised NFPA Standard has resulted in an adverse impact on a product or method that was inadvertently overlooked in the total revision process or was without adequate technical (safety) justification for the action. D
7、ue to dramatic increase of modern construction to include all weather strength and LEED certification, there is a sharp increase in the use of two-way radio enhancement systems. These systems allow for emergency responders to maintain emergency radio communication. The conflict is with available pro
8、ducts and the standard as it pertains to pathway survivability. Radio Frequency (RF) coax and fiber optic cable is not readily available in fire resistive material. Additionally the system themselves are not rated by manufacturers and the pathway survivability is determined by the presence of fire p
9、rotection systems. Therefore, the proposed language allows the materials of the system to match the rating of the building. Anyone may submit a comment by the closing date indicated above. To submit a comment, please identify the number of the TIA and forward to the Secretary, Standards Council, 1 Batterymarch Park, Quincy, MA 021697471.
