PE-9 PE · Physical and Environmental Protection

Power Equipment and Cabling

LOW ✓ MODERATE ✓ HIGH
2 Enhancements 1 Overlay 1 Related Control
Graph
Export ▾

Requirements NIST SOURCE

Protect power equipment and power cabling for the system from damage and destruction.

Discussion (NIST Supplemental Guidance)

Organizations determine the types of protection necessary for the power equipment and cabling employed at different locations that are both internal and external to organizational facilities and environments of operation. Types of power equipment and cabling include internal cabling and uninterruptable power sources in offices or data centers, generators and power cabling outside of buildings, and power sources for self-contained components such as satellites, vehicles, and other deployable systems.

Enhancements NIST SOURCE

PE-9(1) Redundant Cabling LOW MODERATE HIGH

Employ redundant power cabling paths that are physically separated by [distance].

Discussion

Physically separate and redundant power cables ensure that power continues to flow in the event that one of the cables is cut or otherwise damaged.

Open full page for PE-9(1) →
PE-9(2) Automatic Voltage Controls LOW MODERATE HIGH

Employ automatic voltage controls for [critical system components].

Discussion

Automatic voltage controls can monitor and control voltage. Such controls include voltage regulators, voltage conditioners, and voltage stabilizers.

Open full page for PE-9(2) →

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for PE-9 yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. power equipment for the system is protected from damage and destruction;
  2. power cabling for the system is protected from damage and destruction.

Examine

[SELECT FROM: Physical and environmental protection policy; procedures addressing power equipment/cabling protection; facilities housing power equipment/cabling; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with the responsibility to protect power equipment/cabling; organizational personnel with information security responsibilities].

Test

[SELECT FROM: Mechanisms supporting and/or implementing the protection of power equipment/cabling].

Overlays

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

Not applicable at this tier.

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for PE-9. This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Physical and environmental protection policy
  • system security plan

Testing

  • Mechanisms supporting and/or implementing the protection of power equipment/cabling

Other Records

  • procedures addressing power equipment/cabling protection
  • facilities housing power equipment/cabling
  • other relevant documents or records