specifications from the PCI SIG (Special Interest Group) forthe electrical EMF (Electromotive force).IEEE 1686 Standard for Substation Intelligent Electronic Devices(IEDs) Cyber Security CapabilitiesIED Intelligent electronic deviceI-GIS Intelligent gas-insulated switchgearInstance When several occurrences of the same function are availablein the IED, they are referred to as instances of that function.One instance of a function is identical to another of the samekind but has a different number in the IED user interfaces.The word "instance" is sometimes defined as an item ofinformation that is representative of a type. In the same wayan instance of a function in the IED is representative of atype of function.IP 1. Internet protocol. The network layer for the TCP/IPprotocol suite widely used on Ethernet networks. IP is aconnectionless, best-effort packet-switching protocol. Itprovides packet routing, fragmentation and reassemblythrough the data link layer.2. Ingression protection, according to IEC standardIP 20 Ingression protection, according to IEC standard, level 20IP 40 Ingression protection, according to IEC standard, level 40IP 54 Ingression protection, according to IEC standard, level 54IRF Internal failure signalIRIG-B: InterRange Instrumentation Group Time code format B,standard 200ITU International Telecommunications UnionLAN Local area networkLCD Liquid crystal displayLDD Local detection deviceLED Light-emitting diodeLNT LON network toolMCB Miniature circuit breakerMVAL Value of measurementNCC National Control CentreNOF Number of grid faultsNUM Numerical moduleOCO cycle Open-close-open cycleOCP Overcurrent protectionSection 22 1MRK 504 135-UEN AGlossary658Technical manual
