NLCTA Hazard Lockout

PPA/ARD/Test Facilities NLCTA Electromagnet Equipment Lockout Procedure NLCTA Electromagnet Equipment Lockout Procedure

1 Purpose This NLCTA Electromagnet Equipment Lockout Procedure provides protection from unexpected electrical hazards found within the NLCTA Accelerator Enclosure. All beamline electrical hazards, excepting those guarded with protective covers, are included in this ELP. Execution of this ELP requires an NLCTA Qualified Operator to lock out the AC power sources for all of the power supplies supplying power to unprotected magnet terminals and conductors. Following the lock-out, the keys for the power supplies are locked into the NLCTA Lock-Out Box. This ELP contains: . Instructions for Authorized Employees. . Document information, including document approvals. . Instructions for the NLCTA Qualified Operator who must apply and remove the lockout devices. . Instructions for the NLCTA Qualified Operator for the periodic inspection of this procedure. . Signature page for NLCTA Qualified Operators authorized to apply this ELP.

2 Authorized Employee Lockout: Authorized Employees working within one foot of beamline components within the NLCTA Accelerator Enclosure must lock out the electrical hazards from the magnet power supplies. Please refer to: . NLCTA Electromagnet Lockout Users Guide, 02-03-37

June 18, 2008 02-03-10-R06 Page 1 of 9 PPA/ARD/Test Facilities NLCTA Electromagnet Equipment Lockout Procedure

3 Document Information 3.1 Background This document is owned and authorized by the PPA/ARD/Test Facilities Department for control of NLCTA beamline electromagnet electrical hazards posed by unguarded magnet terminals and leads. Revision 06 of this document incorporates and renders obsolete procedures 02-03-19 and 02-03-23 Document source is located at: D:\Docs\2018-01-08\0f637dee90cf00043fa0e38fb3b16286.doc 3.2 Document has been reviewed and approved by:

______PPA/ARD/TF Department Head Name Signature Date

______NLCTA Operations Manager Name Signature Date

______PPA/ARD Safety Officer Name Signature Date 3.3 Initial Validation of Procedure Initial Validation is required prior to or upon the first use of this procedure. Validation is accomplished by following the protocol for the periodic inspection of this procedure.

______NLCTA Qualified Operator Name Signature Date 3.4 Certification of Periodic Inspection of Procedure ELP procedures are valid for ONE YEAR following the most recent Initial Validation or Periodic Inspection. NLCTA Qualified Operators are authorized to review this procedure using the instructions in Section 6 “Periodic Inspection of Procedure”. The dated signature below affirms that no deficiencies or need for correction were identified.

______NLCTA Qualified Operator Name Signature Date

4 Steps for Controlling Hazardous Energy This ELP is designed to deenergize ALL power supplies connected to magnets in the NLCTA Accelerator Enclosure except for those with permanently installed magnet lead covers. The magnets in the NLCTA with appropriate lead covers are: BEND 1140, QUAD 4033, QUAD 4041 and QUAD 4050. To secure beam line electromagnet hazards, the Operator shall: 4.1 Apply 18 hazard lockout locks to the 10 locations listed below. Turn the circuit breaker OFF if required prior to applying lock. A red dedicated NLCTA Hazard Lockout lock is tied to the rack near each control point. Each lock location is tagged with a hazard tag and sequence number. Apply or verify the application of the locks in numeric order starting with lockout station 1 at circuit breaker panel 4P501F2 and ending at lockout station number 10 at rack 24. 1: Breaker Panel (9 locks) 3: AC Power Panel 7: 100 Amp AC Power 4P501F2-9 B062-2737 Panel 4P501F2-21 B062-2037 4: Rack Circuit Breaker 4P501F2-27 Panel 8: 100 Amp AC Power 4P501F2-33 B062-1638-MCB1 Panel 4P501F2-39 B062-2137 4P501F2-45 5: – Rack Circuit Breaker 4P501F2-34 Panel 9: 100 Amp AC Power 4P501F2-40 B062-1738-MCB1 Panel 4P501F2-46 B062-2237 6: – Rack Circuit Breaker 2: Power Supply Breaker Panel 10: 100 Amp AC Power B062-2601 B062-1838-MCB1 Panel B062-2437

4.2 Place the key(s) for the hazard lockout locks into the NLCTA Accelerator Enclosure Magnet Lock-Out Box. 4.3 Fill out a NLCTA Beamline Lockout tag. . Tag template is found at end of this document 4.4 Lock the box with a gold operations lock and the above tag. 4.5 Once the box is secured with the gold lock and tag, authorized workers may place their individual LOTO locks onto the lock box.

5 Steps to return to service 5.1 All individual LOTO must be removed from the LOTO box. 5.2 The gold operations lock shall be removed. 5.3 The “NLCTA Lock-Out Tag” shall be voided (cross text out with a bold diagonal line). 5.4 The key(s) for the hazard lockout locks shall be removed from the lock box. Store these keys in the key safe when not in use. 5.5 Any red NLCTA Hazard Lockout locks may be removed from power supplies.

6 Periodic Inspection of Procedure The intent of the validation and periodic inspection of this ELP is to verify that: . All hazardous energy sources in the building are accounted for, and . The energy sources connected to unprotected beamline magnets in the NLCTA Accelerator Enclosure are properly deenergized by the execution of this ELP. Verification of the connections between power supplies and beamline magnets is complicated by the PPS Hazard Control system which disables or powers off almost all of the magnet power supplies prior to allowing personnel into the accelerator enclosure. The control of the power supplies through the PPS system DOES NOT satisfy either OSHA’s or SLAC’s requirements for the control of hazardous energy. The Periodic Inspection of Procedure (this section) specifically verifies that: . All power supplies capable of energizing beamline magnets to create beamline hazards within the NLCTA Accelerator Enclosure have been identified. Such power supplies are either a) not connected to beamline magnets, b) included in the power supply lockout program listed below, or c) connected to a magnet with appropriate magnet lead protective covers. . Execution of the procedure removes the power from the power supplies listed below. . The four NLCTA Accelerator Enclosure magnets excluded from this procedure have appropriate magnet lead protective covers. . All beamline magnets in the NLCTA Experimental Hall have appropriate magnet lead protective covers. 6.1 Preparation . Start with NLCTA Accelerator Enclosure in NO ACCESS . Remove any Hazard Lockout locks from circuit breakers. All power supplies should be indicating “ON”. It is not necessary to turn on power supplies or trim magnets through the control system. . Check off each of the following items as it is completed. _____ 6.2 Lockout point 1: The 9 circuit breakers power the following EMHP floor-mounted power supplies. Inspection consists of verifying PHASE A, B, C power supply lights are all lit prior to lockout and that all extinguish following lockout. . Verify EMHP 1 . Verify EMHP 2 . Verify EMHP 3 . Verify EMHP 4 . Verify EMHP 5 . Verify EMHP 6 . Verify EMHP 7 . Verify EMHP 8 . Verify EMHP 9 _____ 6.3 Lockout point 2: A rack-mounted blue EMI supply at B062-2601. . Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.4 Lockout point 3: A rack-mounted AC POWER PANEL at B062-2737.

June 18, 2008 02-03-10-R06 Page 4 of 9 PPA/ARD/Test Facilities NLCTA Electromagnet Equipment Lockout Procedure . The Low Voltage Controller at level 31: Verify several LEDs lit prior to lockout and all LEDs extinguish following lockout. . 4 large blue EMI power supplies in rack 27: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 3 large blue EMI power supplies in rack 28: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 1 single-high blue EMI power supply in rack 28 at level 22. Verify power light and voltmeters extinguish following lockout. _____ 6.5 Lockout point 4: A rack-mounted AC POWER PANEL at B062-1638. . 4 large blue EMI power supplies in rack 16: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.6 Lockout point 5: A rack-mounted AC POWER PANEL at B062-1738. . 4 large blue EMI power supplies in rack 17: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.7 Lockout point 6: A rack-mounted POWER PANEL at B062-1838 powers supplies. . 4 large blue EMI power supplies in rack 18: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.8 Lockout point 7: A rack-mounted 100 AMP AC POWER PANEL at B062-2037. . The Low Voltage Controller at level 31: Verify several LEDs lit prior to lockout and all LEDs extinguish following lockout. . 2 large blue EMI power supplies in rack 19 at levels 07 and 12: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 6 large blue EMI power supplies in rack 20: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.9 Lockout point 8: A rack-mounted 100 AMP AC POWER PANEL at B062-2137. . The Low Voltage Controller at level 31: Verify several LEDs lit prior to lockout and all LEDs extinguish following lockout. . 6 large blue EMI power supplies in rack 21: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 2 large blue EMI power supplies in rack 22 at levels 01 and 06: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.10 Lockout point 9: A rack-mounted 100 AMP AC POWER PANEL at B062-2237. . The Low Voltage Controller at level 31: Verify several LEDs lit prior to lockout and all LEDs extinguish following lockout. . 3 large blue EMI power supplies in rack 22 at levels 13, 18 and 23: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 3 large blue EMI power supplies in rack 23 at levels 21, 26, 31 and 36: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 1 single-high blue EMI power supply in rack 23 at level 36. Verify power light and voltmeters extinguish following lockout.

June 18, 2008 02-03-10-R06 Page 5 of 9 PPA/ARD/Test Facilities NLCTA Electromagnet Equipment Lockout Procedure _____ 6.11 Lockout point 10: A rack-mounted 100 AMP AC POWER PANEL at B062-2437. . The Low Voltage Controller at 2431: Verify several LEDs lit prior to lockout and all LEDs extinguish following lockout. . 5 large blue EMI power supplies in rack 24: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. . 2 large blue EMI power supplies in rack 23 at levels 01 and 07: Verify green “POWER ON” and green “CONTROL FAILURE” lights and voltmeters all extinguish following lockout. _____ 6.12 NLCTA magnet lead verification: . Inspect all covered magnets in NLCTA Accelerator Enclosure. Leads must be appropriately covered. . Verify BEND 1140 . Verify QUAD 4033 . Verify QUAD 4041 . Verify QUAD 4050 _____ 6.13 Experimental hall magnet verification: . Inspect all magnets in Experimental Hall. All magnets in experimental hall must have electrical connections for magnet leads appropriately covered. _____ 6.14 Power supply verification: . Inspect and Verify that the NLCTA Electromagnet Lockout Users Guide document (02-03- 37) properly describes the application of equipment lockout devices for work within the NLCTA Accelerator Enclosure. _____ 6.15 Users guide review: . Inspect all instrumentation racks in End Station B. All power supplies not included in the above verification procedure must be connected to loads which DO NOT power magnets in the NLCTA Accelerator Enclosure. 6.16 Conclusion Upon completion of all of the above items: . Sign and date this copy here:

______NLCTA Qualified Operator Name Signature Date . Sign section “Initial Validation of Procedure” or “Certification of Periodic Inspection of Procedure”, as appropriate, on the original NLCTA Electromagnet Equipment Lockout Procedure document. . Sign section “Initial Validation of Procedure” or “Certification of Periodic Inspection of Procedure”, as appropriate, on the original NLCTA Electromagnet Lockout Users Guide document, 02-03-37. . File the checked-off copy of this procedure in the NLCTA Control Room binder “MONTHLY CHECKLISTS”

7 Personnel authorized to use this procedure Any NLCTA Qualified Operator may lock out the following electrical hazards using this NLCTA Electromagnet Equipment Lockout Procedure upon reading and signing this procedure.

______NLCTA Qualified Operator Name Signature Date

June 18, 2008 02-03-10-R06 Page 7 of 9 NLCTA NLCTA NLCTA NLCTA NLCTA Beamline Beamline Beamline Beamline Beamline Lockout Lockout Lockout Lockout Lockout

NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator

------Printed Name------Printed Name------Printed Name------Printed Name------Printed Name------

------Signature------Signature------Signature------Signature------Signature------

------Date & Time------Date & Time------Date & Time------Date & Time------Date & Time------

NLCTA NLCTA NLCTA NLCTA NLCTA Beamline Beamline Beamline Beamline Beamline Lockout Lockout Lockout Lockout Lockout

NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator NLCTA Qualified Operator

------Printed Name------Printed Name------Printed Name------Printed Name------Printed Name------

------Signature------Signature------Signature------Signature------Signature------

------Date & Time------Date & Time------Date & Time------Date & Time------Date & Time------