IEEE 987-2001

IEEE 987-2001 is a technical guide for the application of composite insulators in power, energy, and related industrial systems. It helps engineers and specifiers consider how these insulators are selected, installed, and used in service, with attention to practical performance and reliability. For projects involving overhead lines, substations, or other electrical assets, IEEE 987-2001 can support more consistent decision-making around insulation choices and operating conditions.

Overview of IEEE 987-2001

This standard focuses on the application of composite insulators rather than a broad insulation theory. It is intended to guide users who need to evaluate how composite designs fit into electrical equipment and network environments where mechanical loading, electrical stress, and environmental exposure all matter. IEEE 987-2001 is useful when comparing alternatives, defining application criteria, or aligning internal engineering practices with a recognized technical reference for insulation-related work.

Typical use cases

IEEE 987-2001 is commonly relevant during the planning and specification of composite insulators for utility transmission and distribution assets, as well as industrial power installations. It may be used when selecting insulators for lines, stations, or other equipment where pollution, weather, mechanical support, or long-term service performance are important. Engineers, purchasers, and maintenance teams can use it as a reference when reviewing application requirements and suitability for a given electrical environment.

Why it matters

Using a focused guide such as IEEE 987-2001 can improve consistency in design review, procurement, and field application decisions. It supports better control of insulation selection, which can reduce misapplication risk and help maintain dependable system performance. For organizations working with composite insulators, the standard can also aid compliance discussions, technical documentation, and cross-team alignment when specifying products for power and energy infrastructure.

• Composite insulator application guidance
• Power, energy, and industrial systems
• Selection and suitability considerations
• Electrical and environmental service conditions
• Design, procurement, and maintenance support