Document: NUREG-0800
Document ID: fce5c014-cdea-4bf2-83f9-535d051f0f3b
Document Type: srp
Title: MISSILES GENERATED BY NATURAL PHENOMENA
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070375.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.1.4
CFR Part: 
CFR Title: 

Content:
tmass 675.9 kg (1490 lb). 0.4 G. Automobile, frontal area 1.86 m (20 ft **2), 2 2 weightmass 1814 kg (4000 lb). 0.2 SRP Section 3.5.1.4, November 24, 1975 "NO TUMBLING" MISSILE SPECTRUM B38 Horizontal Velocity39 m/sec (ft/sec) A. Wood plank, 10 cm x 30 cm x 3.7 m (4 in. x 12 in. x 12 ft), weightmass 90.7 kg (200 lb). 112.2 (368) B. Steel pipe, 8 cm (3 in.) diameter, schedule 40, 4.6 m (15 ft) long, weightmass 52.2 kg (115 lb). 81.7 (268) C. Steel Rod, 2.54 cm (1 in.) diameter x 0.9 m (3 ft) long, weightmass 3.6 kg (8 lb). 79 (259) D. Steel pipe, 15 cm (6 in.) diameter, schedule 40, 4.6 m (15 ft) long, weightmass 129.3 kg (285 lb). 70.1 (230) E. Steel pipe, 30 cm (12 in.) diameter, schedule 40, 9.1 m (30 ft) long, weightmass 680.4 kg (1500 lb). 62.5 (205) F. Utility pole, 36 cm (14 in.) diameter, 10.7 m (35 ft) long, weightmass 680.4 kg (1500 lb). 73.5 (241) G. Automobile, frontal area 1.86 m (20 ft **2), 2 2 weightmass 1814 kg (4000 lb). 30.5 (100) These missiles are considered to be capable of striking in all directions with vertical velocities equal to 80% of the acceptable horizontal velocities. Missiles A, B, C, D, and E are to be considered at all elevations and missiles F and G at elevations up to 9.2 m (30 Feetft) above all grade levels within 0.81 km (½ mile) of the facility structures. 40 41 For standard design certification reviews under 10 CFR Part 52, the procedures above should be followed, as modified by the procedures in SRP Section 14.3 (proposed), to verify that the design set forth in the standard safety analysis report, including inspections, tests, analysis, and acceptance criteria (ITAAC), site interface requirements and combined license action items, meet the acceptance criteria given in subsection II. SRP Section 14.3 (proposed) contains procedures for the review of certified design material (CDM) for the standard design, including the site parameters, interface criteria, and ITAAC.42 IV. EVALUATION FINDINGS The reviewer verifies that