IEEE 957-1987

The scope of this guide for cleaning insulators is to document the present day state of the art for cleaning contaminated electrical insulators (excluding nuclear contaminants), of all types, using varied equipment and techniques. Because of the great variety in conditions, practices, electrical system designs, and contamination possibilities, this guide is offered simply to describe a number of possible approaches to insulator cleaning on power systems. The IEEE makes no representation or warranty as to the adequacy, accuracy, economy, or safety of this guide. Each utility must consider all the factors applicable to it's situations in deciding whether and how to use the information in this guide.

The purpose of this guide is to present pertinent information on the equipment needed and the methods that can be used in a safe and efficient manner when cleaning contaminated insulators. The methods or equipment, or both, presented in this guide are not intended to prescribe specific procedures, but to present the successful experience of many individuals, who have safely cleaned contaminated insulators. The guide is intended to serve as a reference source for a company or persons seeking information on insulator cleaning procedures so that they may consider the experience of others in modifying or formulating their own insulator cleaning program and practices.

New IEEE Standard - Superseded. Superseded. Information on the equipment needed and the methods that can be used to clean contaminated electrical insulators are presented. The intent is to document the state of the art for cleaning insulators (excluding nuclear contaminants) of all types. Energized and de-energized systems are considered. The standard does not prescribe specific procedures, but rather reflects the experience of many individuals who have safely cleaned contaminated insulators.