Providing line and load side isolation with a visible earth connection for each outgoing circuit at the touch of a button, the OCS reduces risks through eliminating residual capacitive charge exposure to the operator and the potentially explosive environment, whilst providing a positive lockable earth position for electrical work.
Ampcontrol’s standardised cassette design provides a compact solution for individual outlet isolation and visible earthing, without the cost and space required by discrete isolators and earth switches.
The OCS incorporates Ampcontrol’s patented integrated protection relay technology. An intelligent device based on the latest microprocessor technology, the fully integrated cassette specific relay provides all of the necessary functions required for protecting electrical outlets supplying underground mining machinery.
All of the protection functions are combined into a compact, plug in unit, which can be easily removed in situ without the need to remove the heavier power cassette, not only minimising downtime but personnel manual handling risks.
The OCS integrated protection relay is certified for use in underground mining operations, for the protection of mining equipment to AS/NZS 2081 and Intrinsically Safe Ex ia for the relevant protective functions.
Ampcontrol’s OCS is provided as part of an Ampcontrol designed and manufactured DCB.