NFPA 520 Standard on Subterranean Spaces
NFPA 520 地下空间标准

1-1.1 This standard addresses the safeguarding of life and property against fire, explosion, and related hazards associated with developed subterranean spaces.

1-1.2 This standard does not cover the following types of subterranean spaces (a) Tourist caverns (b) Wine storage caverns (c)Gas and oil storage reservoirs (d) Hazardous waste repositories (e) Utility installations such as pump stations (f) Working mines (g) Transportation and pedestrian tunnels (h) Aboveground buildings with belowground stories (i) Cut and cover underground structures specifically addressed in the building code

Safeguard people and property against fire and related hazards in subterranean spaces with the 2010 NFPA 520.

NFPA 520 Standard on Subterranean Spaces covers subterranean spaces that are developed for public assembly, business, manufacturing or other uses which are unique environments and present many special fire and life safety considerations. This standard addresses critical safety issues in such underground areas including criteria for

·    Construction features

·    Means of egress

·    Fire alarm, detection, and suppression systems

·    Emergency preparedness

·    Fire department provisions

(Softbound, 17 pp., 2010)