Cheap Flights to Johannesburg from Miami

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OR Tambo International Airport (ORTIA) is the largest airport in South Africa and the air transport hub of Southern Africa. Aircraft are supplied with kerosene via a fuelling system which stretches from the fuel depot to the apron. This system must meet very high standards in two areas. Firstly, there is the need for system safety due to the extremely high potential hazards that fuel poses to people and the environment. Secondly, the system availability must meet the constant demand for aircraft fuel at a busy airport.

This system is now being reliably monitored by safety-related controllers from HIMA Paul Hildebrandt GmbH + Co KG, which is headquartered in Germany.

The ESD system (Emergency Shutdown System) from HIMA is replacing the old relay-based safety system, which was no longer able to meet the airport's expansion plans. Six safety-related controllers of type H41q (IEC 61508/SIL 3) are being used to meet the requirements of a safety-related network with Safe Ethernet. Safe Ethernet offers open communication and safe transmission of data via Ethernet, yet independent of the transmission medium. Safe Ethernet was developed by HIMA and is based on standard Ethernet.

The ESD system is monitoring a large number of shut-down valves, which are positioned in the feed pumps as well as zones along the fuel line in order to ensure safe shut-down in case of an emergency. Each of the six H41q systems processes approximately 70 safety-related signals and is responsible for monitoring one zone.

HIMA systems are integrated into the airport's "Infrastructure Management and Control System" (IMCS) via OPC (open connectivity via open standards). Furthermore, the safety controllers are connected to a SCADA system (Supervisory Control and Data Acquisition), which is used for visualising purposes, via an OPC interface. SCADA systems, also known as Human-Machine Interface (HMI), are large-scale, distributed measurement and control systems, typically used to monitor or control chemical, physical or transport processes.

The safety system from HIMA was chosen during the tender process because of its cost-effective advantages, the system's

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