IEEE 1402-2021

IEEE 1402-2021 is a technical guide focused on the physical security of electric power substations, helping address protection concerns for critical power infrastructure. It sits at the intersection of power systems, electromagnetic considerations, and equipment protection, making it useful where substations must stay resilient against intrusion, damage, and operational disruption. IEEE 1402-2021 is relevant for planning, evaluating, and improving security measures in facilities that support reliable electric service.

About IEEE 1402-2021

This standard provides guidance for physical security in electric power substations, with attention to how site conditions, equipment layout, and exposure to threats can affect system integrity. IEEE 1402-2021 is best understood as a practical engineering reference rather than a product specification. It helps organizations consider protective measures around components, circuits, devices, and related systems that are important to substation operation. The document is useful where security decisions must be balanced with access, maintainability, and operational reliability.

Where is IEEE 1402-2021 used?

IEEE 1402-2021 is commonly used in electric utility substations and related power facilities where physical access control and equipment protection are part of day-to-day engineering and asset management. It may support new substation design, retrofit planning, site audits, and security reviews for yards, control buildings, switchgear areas, and other exposed installations. The guidance is especially relevant when teams need to coordinate mechanical barriers, surveillance, and operational procedures around power equipment and electromagnetic environments.

Importance in practice

In practice, IEEE 1402-2021 helps reduce risk by giving a structured basis for physical security decisions tied to substation reliability. That can improve consistency during design reviews, procurement, and maintenance planning, especially where security features must align with electrical performance and site access needs. The standard also supports clearer compliance discussions and more defensible engineering choices when utilities or consultants evaluate protection levels for critical infrastructure. For many projects, it helps turn general security goals into practical, reviewable measures.

• Physical security for electric power substations
• Guidance for critical infrastructure protection
• Considerations for site access and equipment exposure
• Useful for design, review, and retrofit planning
• Supports consistent engineering and compliance decisions