# Presentation: 384566

## Lock out Tag out and Accelerator Access

- Operations LOTO

## Operations LOTO 

- Appled to the AGS and Booster ring enclosures prior to any entry
- Allows safe passage to Trained Ring Entrants
- Uses a token key system for access

## Who May enter

- Entrants must have RAD worker I and C-A Access training
- Those entering for OUTSIDE INSPECTION ONLY need no other training
- All entrants must ensure the Token Key is locked in the Token Box prior to entry

## Tokens

- The appropriate Token Key must be LOTO to ensure Operations LOTO remains in place during the access
- This token is the key to a specific lockbox, in which the Operations LOTO lock keys are secured
- It also represents the LOTO for devices on a specific checklist (Controlled or Restricted Access)
- The state of the LOTO normally corresponds to that of the Access Control system,
- There are instances where Restricted Access LOTO will be applied for a Controlled Access

## “Workers” entering the ring

- Must be trained to apply a lock to the Token Box
- BNL Electrical Safety (bi-yearly web based)
- BNL LOTO Authorized (yearly web based)
- CA LOTO (Yearly authorization from supervisor)
- Workers needing to actually open disconnects need CA Electrical Safe Work Practice I
- Token box LOTO must be applied any entrant crossing to the inside of the ring for any reason

## Controlled and Restricted Access LOTO

- During Operations, there are two states of LOTO: Controlled and Restricted Access
- Checklists naming all devices LOTO in each instance can be viewed in _[OPM](http://www.cadops.bnl.gov/AGS/Accel/SND/OPM/Ch02/2-6-1-a.PDF)__[ 2.6.1 attachments a-d ](http://www.cadops.bnl.gov/AGS/Accel/SND/OPM/Ch02/2-6-1-a.PDF)_and on the web at ‘_[Operations LOTO](http://www.cadops.bnl.gov/AGS/Operations/Ops_LOTO/index.html)_ ‘

## Controlled Access LOTO

- Includes systems such as the Main Magnet power supply, magnet strings & devices with exposed buss
- Barriered elements such as those in LTB, BTA and AtR and single devices without exposed buss-work lines are NOT LOTO
- All devices listed on the Restricted Access List are turned off
- Access is controlled by Operations
- Access through one gate only
- Gate watch (body count)
- Increased control and work planning is used to reduce risk to workers in the ring

## Restricted Access LOTO

- In Addition to the Controlled Access items, other  electrical systems are LOTOed
- Transport lines
- Individual devices with barriered buss-work
- Some systems remain on
- High voltage vacuum ion pumps and gauges
- Electrical power (120 and 240VAC outlets and lighting and 480 outlets)
- Ventilation, Fire detection and protection
- Motor Drives (120VAC)
- Increased LOTO is placed allow for freer access

## Shutdown

- Additional systems may be LOTO by Operations:
- High voltage vacuum ion pumps
- Motor drives
- Low voltage devices
- Other devices may be LOTO by specialists for maintenance/repair
- (Fire Systems, ventilation systems, 480 V outlets...)
- Testing may be done
- In accordance with _[OPM 2.6.8](http://www.cadops.bnl.gov/AGS/Accel/SND/OPM/Ch02/02-06-08.PDF)_
- With safety watch or labeled barrier in place
- With appropriate permits

## Comments

- When entering the ring, all devices on the Restricted Access are normally are de-energized
- Operations LOTO may NOT serve as LOTO for a specific job to be performed
- This must part of individual group work plans
- Individuals must apply their own LOTO to all elements that present a hazard
- Ring entrance for Inspection Only, does not require a lock on the token, only verification that it is in place
- Be aware of the state of accelerators before accessing them
- Always observe gate light indications and postings
- If there is any question about the access mode, contact Operations (MCR ext 4662 when running, MSG when in shutdown or Maintenance)
- Don’t forget to remove your lock when finished in the ring!