Secure, Weather-Resistant Enclosure System for OK Tedi Pipeline

Five cathodic power units were required for installation on a pipeline at the OK Tedi Mine, an environment characterised by extreme rainfall of up to one metre per month and consistently high humidity. These units were essential for matching the electrical potential of the pipelines to the surrounding ground, preventing corrosion and extending the life of the pipe system.

The remote location demanded high security and restricted access. Operators needed to be able to monitor the equipment without interacting directly with the complex control and power systems. Additionally, the severe weather conditions made it challenging to maintain a controlled environment in which the equipment could operate reliably.

To address the humidity, rainfall and security challenges, B&R supplied a stainless steel Monarch IP enclosure to house the active equipment. This enclosure was fitted with a viewing window for visual inspection, a mounting pan and a custom hinged escutcheon.

The unit was then installed inside a second Monarch IP enclosure, using UV and C rails supplied by B&R. Both enclosures featured three-point locking and padlockable swing handles, allowing independent access control for each enclosure. Humidity within the void between the two enclosures was managed using an anti-condensation heater and thermostat. Custom rain shields were also added to provide further protection from extreme weather.

The solution delivered by B&R ensured the security, reliability and accessibility required for this remote installation. The end user was highly satisfied with the outcome provided by Corrosion Electronics in partnership with B&R Enclosures.