IEEE 338-1987

IEEE 338-1987 sets criteria for the periodic surveillance testing of nuclear power generating station safety systems. In practical terms, it addresses how safety-related equipment should be checked at intervals to confirm that key protective functions remain available and credible. For nuclear engineering applications, this matters because regular surveillance testing helps support operational readiness, detect hidden failures, and maintain confidence in systems that may be called on under abnormal or accident conditions.

About IEEE 338-1987

This technical document provides guidance focused on periodic surveillance testing rather than initial design alone. IEEE 338-1987 is concerned with how safety systems in a nuclear power generating station are examined, verified, and monitored over time so that their performance can be assessed against expected criteria. The standard is relevant to maintenance planning, test scheduling, and evaluation of safety equipment, helping organizations apply a consistent approach to ongoing system assurance in a high-consequence environment.

Where is IEEE 338-1987 used?

IEEE 338-1987 is typically used in the operation and maintenance of nuclear power generating stations, especially where safety systems must be periodically tested to confirm readiness. It is relevant to surveillance programs for protection circuits, control and monitoring equipment, and other safety-related station systems. In engineering and compliance workflows, it may guide test interval planning, documentation practices, and review of results so that equipment condition is tracked in a disciplined and repeatable way.

Importance in practice

Periodic surveillance testing is essential in nuclear facilities because safety systems can appear functional while still developing hidden faults. IEEE 338-1987 supports more consistent testing expectations, which can improve compliance, reduce uncertainty during audits or reviews, and strengthen confidence in operational performance. For owners, engineers, and maintenance teams, the standard can help align test methods and decision-making around safety-related equipment. That consistency is valuable for managing risk and supporting reliable station operation.

• Periodic surveillance testing criteria
• Nuclear safety system readiness
• Test planning and evaluation
• Operational compliance support
• Maintenance and verification workflows