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Electrical Engineering Standards Conclusion Session

Electrical Engineering Standards Conclusion Session. H L - L H C S t a nd a r d s a n d B e st P r a c t i c e s W o r ks h o p ( 1 1 - 1 3 J un e 2014). Introduction . 2 sessions, 5 participants each one

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Electrical Engineering Standards Conclusion Session

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  1. Electrical Engineering Standards Conclusion Session HL-LHCStandardsandBestPractices Workshop(11-13June2014)

  2. Introduction • 2 sessions, 5 participants each one • Electrical engineering is strongly ruled but involves several diverse fields (semiconductors, superconductive materials, electrical insulation, power converters, power networks, electronics,…) • Work packages attending the workshop not much impacted by electrical standards • At this stage, few electrical may be discussed (cables, EMC, connectors and magnets) • Excellent participation and constructive discussions among the participants HL-LHCStandardsandBestPracticesWorkshop(11-13June2014)

  3. Discussed Topics (I) • Magnet Testing procedures for electrical insulation acceptance • Voltage ratings • Tests conditions (helium, room temperature) • Ground references for voltages • All Circuits tested at once or separately? • Special requirements as part of a system? • Electromagnetic Compatibility (EMC) • EMC standards (IEC-61000) should be accepted by all parties • According to the grounding/reference scheme, sensors technology differs • Beam emissions are not covered by EMC standards • Need to define beam emission and immunity levels for the whole project? HL-LHCStandardsandBestPracticesWorkshop(11-13June2014)

  4. Discussed Topics (II) • Cables and wiring • IS23 safety requirements • IEEE cable standards in US • Definition of Radiation requirements • Connectors • Some convenient materials in connectors (Teflon) not allowed at CERN • Connectors “catalog” is required for project? Use Project connectors • From the operation and maintenance side, connector standardization preferred but… technically speaking appropriated? • Soldering • Some requirements? Not considered in any standard • Tin-Lead technic is commonly used but other technics allowed? Standards? HL-LHCStandardsandBestPracticesWorkshop(11-13June2014)

  5. Conclusions • Electrical tests requirements should be established in the technical specifications particularly for the magnet insulation tests. • Guidelines are requested at project level for • electrical magnet testing • signals wiring convention (grounding) and junction best practices • EMC Beam emissions: not covered by EMC standards • Connectors standardization may be convenient for the project • More electrical issues will come later with electrical systems to be designed in WPs HL-LHCStandardsandBestPracticesWorkshop(11-13June2014)

  6. Thankyouforyourattention and collaboration!!!! Questions? HL-LHCStandardsandBestPracticesWorkshop(11-13June2014)

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