NFPA 502 封闭式高速公路、隧道、桥梁、高架路和骑河楼建筑防火的推荐做法
日期:2012-02-09 16:45
erials, emergency ventilation, electrical systems, and emergency response.
Among changes in the 2011 edition are
Updated Table 7.2 discussing required systems based on tunnel category
Updated wiring requirements for tunnels
Categorization of bridges and elevated highways
New chapter on water-based fire fighting systems
System commissioning guidelines and periodic testing requirements
Updated criteria for life safety analyses for tunnels
Updated reference materials
Numerous Annexes expand
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09/08 09:49