9 Scientific, photographic, optical, surveying, weighing, measuring, signaling, checking, supervision and teaching apparatus and instruments, namely, cameras, sensors for detecting system failure or disruption; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, circuit breakers, converters, substation equipment, namely, electrical transformers, capacitors, condensers; current and voltage sensors; voltage regulators, electricity limiters, voltage surge protectors; apparatus for recording, transmission or reproduction of control signals, measurement signals, namely, programmable logic controllers, fieldbusses in the nature of micro-processor based hardware and software used to provide real-time communication of industrial processes, namely, power generation, electrical distribution and oil, gas and petrochemical processing, wireless gateway routers in the nature of computer control hardware and distributed control systems for detecting control signals, measurement signals, system failure or disruption; transmitters of electronic signals, apparatus for recording, transmission or reproduction of sound and images; magnetic data carriers, namely, prerecorded optical and magnetic data carriers, CDs, DVDs, featuring process control and automated system control software; data equipment, namely, computer data servers, data processors, hand-held computers, electronic data recorders; computers; computer software for use in automated system control and in industrial process control, monitoring and visualization in the field of oil, gas and petrochemical production including extraction, production, separation and transport