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Take 5 for Safety

DOE Electrical Assessment of C-AD: Inaccurate Electrical Panel Schedules Missing Knockouts Panel Modifications Picture of the Week Collider-Accelerator Department 4-6-2010. Take 5 for Safety. Recent Assessment Results. Level 1 Finding:

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Take 5 for Safety

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  1. DOE Electrical Assessment of C-AD: Inaccurate Electrical Panel Schedules Missing Knockouts Panel Modifications Picture of the Week Collider-Accelerator Department 4-6-2010 Take 5 for Safety

  2. Recent Assessment Results • Level 1 Finding: • A number of circuit breaker cabinets within the AGS, STAR and PHENIX were found with inaccurate panel schedules • Openings due to removed conduit and / or missing hardware on the front panel covers • Feeder circuits supplying circuit breaker cabinets were not identified within any of the four toured CAD facilities • A number of circuit breaker lighting cabinets were found to have been modified within the AGS tunnel facility

  3. DOE: Switches In Service Panels, Subpanels, Or Elsewhere Shall Be Marked To Show What Loads OrEquipment Are Supplied; NEC: Source (Feeder Circuit) Shall Be Labeled On Panel Loads, Disconnects, Controllers Should Be Labeled With Same ID# As Indicated On Service Panel

  4. Web Examples of Openings Due to Outer Panel Box Missing Hardware • PPE at BNL was calculated assuming the panel enclosure offered no protection in an arc flash • Do not use -1 rule if panel has missing hardware • Main issue: bees and animals can get in

  5. Web Examples of Missing Hardware Inside Panel (Shock Hazard); Not Observed During Assessment

  6. Panel Modifications • Circuit breaker lighting cabinets were found to have been modified within the AGS tunnel • Transparent Lexan panels were installed over relays to protect exposed conductors • Lighting cabinets were approved by a NRTL • Lexan modification requires review from by C-AD EEI

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