Overhead line insulator washing

This two day course will provide participants with the skills and knowledge to carry out overhead line insulator washing principles and procedures, and the skills to wash insulators supporting energised high voltage conductors.


To undertake this course, the client must provide the necessary plant and equipment, ie:

  • high voltage insulated EWP fitted with high voltage earth lead and spike
  • minimum of 450 litre water tank filled with de-mineralised water
  • high pressure washing unit
  • insulated high pressure hose
  • insulated washing wand
  • silicone wipes
  • a water meter
  • a wind meter

Note: All equipment must be in-test.


The prerequisites for attendance at this training course are:

  • Network Authority Card (NAC)
  • Certificate III in ESI – Distribution overhead qualification
  • High risk licence to operate a boom-type elevating work platform (boom length 11 metres or more)
  • Licence to perform high risk work – WP (elevating work platform)

Note: All prerequisites need to be current.

Learning outcomes

As a result of attending this course participants should be able to:

  • identify and apply worksite safety requirements
  • identify and prepare equipment for insulator washing
  • inspect and maintain tools and equipment used for insulator washing
  • test the quality of water used for insulator washing
  • test insulators for defects
  • wash insulators supporting high voltage apparatus

PPC/PPE and equipment requirements

Some of the practical training for this course will take place in an operational area. You are required to have/provide Western Power approved PPC and PPE requirements for the practical work. Refer to the Western Power PPE Procedure Sections 3.1 & 3.2, for these requirements.

Note: Power Training Services does not provide PPE, PPC and tools for training courses.


Assessments are included in this course. Participants will not be considered to have completed this course until all assessments have been completed to a satisfactory level.

This course has no current classes. Please the waiting list.