IEEE Std C57.12.31™-2002 IEEE Standard for Pole Mounted Equipment—Enclosure Integrity -Description

Abstract: Conformance tests and requirements for the coating integrity of carbon steel pole mounted enclosures containing apparatus energized in excess of 600 volts, typically located out of reach of the general public, including, but not limited to, the following types of equipment enclosures: pole-mounted distribution transformers, pole-mounted switches, pole-mounted regulators, pole-mounted metering equipment, pole-mounted reclosers, and pole-mounted switchgear are covered.

Keywords: coating integrity, enclosure integrity, pole-mounted equipment, switches, transformers

Content

1. Overview
- 1.1 Scope
- 1.2 Purpose
2. References
3. Definitions
4. Enclosure design and coating system requirements
- 4.1 Enclosure design requirements—objective
- - 4.1.1 Accessibility
  - 4.1.2 Contaminant accumulation
  - 4.1.3 Welds—surface preparation
- 4.2 Substrate requirements
- 4.3 Coating system requirements
- - 4.3.1 General
  - 4.3.2 Specification of coating characteristics
  - 4.3.3 Coating touch-up prior to shipment
  - 4.3.4 Enclosure color
- 4.4 Coating system test specimens
- 4.5 Coating system performance requirements
- - 4.5.1 Salt spray test
  - 4.5.2 Cross hatch adhesion test
  - 4.5.3 Humidity test
  - 4.5.4 Impact test
  - 4.5.5 Insulating fluid resistance tests (for liquid filled equipment only)
  - 4.5.6 Ultraviolet accelerated weathering (QUV) test
  - 4.5.7 QUV and simulated corrosive atmospheric breakdown (SCAB)
  - 4.5.8 Abrasion resistance Taber Abraser
  - 4.5.9 Gravelometer
5. General
- 5.1 Shipment
- 5.2 Coating repair procedure
Annex A QUV and SCAB Procedure
Annex B Bibliography

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