TS IEC 60300-3-3

TS IEC 60300-3-3 is an application guide within dependability management that focuses on life cycle costing. It helps users understand the full cost picture of a product or system over its lifetime, with particular emphasis on costs associated with dependability. The standard is intended as a practical guide for both customers and suppliers, not simply as an accounting note.

How life cycle costing is framed

In general technical use, life cycle costing considers costs across the whole life of an asset: acquisition, operation, maintenance, support, failure effects, and end-of-life activities. The emphasis in this standard is on the dependability-related portion of that broader picture. That distinction matters because a lower purchase price may be outweighed by higher operating or maintenance burdens if reliability is weak.

What the guide is meant to support

The standard explains the purpose and value of life cycle costing and outlines common approaches for applying it in projects and programmes. It also points to typical life cycle elements that can help structure planning and analysis, including the development of a life cycle costing model. In practice, that makes it useful where decisions must compare alternatives on a whole-life basis rather than on initial cost alone.

• Focuses on life cycle costing as a dependability management topic.
• Highlights costs linked to reliability and maintainability.
• Provides general guidance for carrying out a life cycle cost analysis.
• Supports both customer and supplier perspectives in ordinary application.