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 MIL-HDBK-1013/1A
(4.6-mm) anti-pry strip shown in Figure 38 and the auxiliary rim-strike
reinforcement shown in Figure 38. This design provides 4 minutes of delay
against a medium-severity threat. If more delay time is required, multiple
doors installed in series may be used as shown in Figure 10.
3)
High-Severity Threat Level. There are no high-severity threat
personnel doors. If there is a requirement for a high-severity threat
personnel door, use alternative means. For example, use two medium-severity
personnel doors mounted in series or use a vault door. Since access control
or panic hardware can not be installed on a vault door, consider using both a
daytime door and a nighttime door.
5.5.5.3
Vault Doors. Since openings in vaults are more vulnerable to
attack than the vault enclosure itself, only one entrance should be provided,
where possible. When a vault exceeds 1,000 square feet (90 sq m) in floor
space, or will have more than eight occupants, it should have a minimum of
two exits for safety purposes. When more than one entrance is required, each
shall be equipped with an approved vault door with only one used for normal
access. Where continued use of an entry barrier is required at a vault door,
a day gate shall be provided for the primary entrance to preclude undue wear
of the door, which eventually could weaken the locking mechanism or cause
malfunctioning. Vault doors and frame units shall conform to Federal
Specification AA-D-00600C for GSA Class 5 vault doors. Requirements of this
specification are summarized in the following paragraphs. Vault door
requirements and penetration times are given in Table 30.
Table 30
Vault Door Options and Penetration Times
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*
*
*
Threat Severity Level
*
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*
*
*
*
*
Attribute
Low
Medium
High
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*Class
*
*
*
*
N/A
5
8
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*Specifications
*
* FED SPEC AA-D-00600C *FED SPEC AA-D-2757 *
N/A
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*Penetration Time *
*
*
*
N/A
10
15
*(minutes)
*
*
*
*
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N/A = Not Applicable
141
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