
Table Of Contents
Purpose of insulator
Insulators make sure the energized parts do not touch the ground. All substation equipment in contact with an energized line or bus employs an insulator.

Cost of insulator
- 138kV nominal voltage insulator: ~$500 each
- 230kV nominal voltage insulator: ~$650 each
- 345kV nominal voltage insulator: ~$1000 each
- 500kV nominal voltage insulator: ~$1800 each
Lead time to procure insulator
~8 weeks
Information on cost and lead time is for your general knowledge only. Contact vendor with your equipment specifications for actual figures.
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