ZES Update

1. ZES Update ZES003R2

2. Contents • Overview • Guidelines on Cascaded Lock Boxes • Left hand rule

3. Overview • Overview of ZES • In 2008 the Ontario operations implemented ZES, a new locking and tagging standard that requires all sources of energy be locked out prior to work being performed. • Over time, improvements, revisions, clarifications and updates are made to the ZES program. In addition to being communicated directly, this module is periodically attached to the annual refresher training module to ensure that everyone is aware of any changes. • The presentation that follows will outline some of the recent updates to the ZES program.

4. Cascaded Lock Boxes

5. Cascaded Lock Boxes • Guidelines for Cascading Lock Boxes • Cascaded Lock box: • A lock box that contains the keys from an identified red project lock that has been affixed to the exterior of another lock box or lock boxes. • Context: • Cascaded lock boxes have always been permitted as part of the ZES program. This guideline is intended to help standardize the way cascaded lock boxes are used. • In many cases due to commissioning or testing requirements it is necessary to access and remove the locks from a subset of energy isolating devices within a lock box at some point during a project. With proper planning a cascaded lock box may simplify this process.

6. Cascaded Lock Boxes • Applications for Cascading Lock Boxes • There are three applications of cascaded lock boxes. • The next slides will provide an overview and awareness of these three applications. For detailed questions on the use of cascaded lockboxes, please contact your supervisor, project contact, safety supervisor or learning and development. • Step by step instructions for cascading lockboxes are provided on the job aid form (available on the ZES website).

7. Cascaded Lock Box • Application 1:Extending a Lock Box • A lock box is created and a red project lock and tag are placed on that lock box. • A job aid card is put into the slot indicating the lock box has been cascaded. • The key from the red project personal protection lock is placed within a cascaded lock box. • The cascaded lock box or the original lockbox is used for personal protection locking. (Typically used where two groups working on the same job and are locking in different locations)

8. √ Keys stay with Designated Tagger Cascaded Lock Box After placing your project tag and red lock, Key goes into the cascaded lock box Personal Protection Lock & Tags

9. Cascaded Lock Box • Application 2:Cascading using Multiple Lock Boxes • Isolating devices required to remain locked for the duration of the project are placed in a lock box. • Equipment which is required to be unlocked at some point during the project have the keys placed in a second lock box (further lock boxes may be used as required). • A red project personal protection lock is then affixed to each lock box and a job aid form is put into the slot of each lockbox indicating the lock box has been cascaded. • All project lock keys are combined into a cascaded lock box. • The cascaded lock box is used for personal protection locking.

10. V-1 V-2 V-3 Cascaded Lock Box √ √ √ PersonalProtection Lock & Tags Keys stay with Designated Tagger Project tags

11. Cascaded Lock Box • Application 3:Cascading a Lock box + Additional Isolation Points • A lock box is created and then a red project lock is placed on that lock box. • The key for that red project lock along with the keys from additional energy isolating devices are combined in a cascaded lockbox. • A job aid form is put into the slot of the original lock box indicating the lock box has been cascaded. • The cascaded lock box is used for personal protection locking.

12. V-1 V-2 V-3 √ Keys stay with Designated Tagger Cascaded Lock Box After placing your project tag and red lock, Key goes into the cascaded lock box Personal Protection Lock & Tags

13. Cascaded Lock Box continued • In any case, the tagger should only install their personal protection lock on one lock box. The tagger must ensure: • 1. They are working on the same project as listed on the Lock Box Form. • 2. They install his/her personal protection on the correct Lock Box. • 3. They remove his/her personal protection by the end of their working shift. • All lock boxes, both regular and cascaded shall be secured with a blue lock by a designated tagger(s). The keys to the blue lock must be secured by the designated tagger(s) and shall not be placed inside another lock box. If a key to a blue lock changes hands to a subsequent designated tagger, the lock box form for that lock box (and that lock box only) shall record the name of the subsequent designated tagger, regardless, of whether the lock box is cascaded or not.

14. Cascaded Lock Box continued • Note: You can only cascade off of the original lock box, therefore cascading off of a cascaded lock box is not permitted. • Reasoning: Cascading lock boxes has added a certain amount of complexity to the ZES program. • To mitigate the complexity to ALARA, only cascading off the original lock box is permitted. • This overview and the job aid for cascading lock boxes can be found on the ZES website.

15. Left Hand Rule

16. Left Hand Rule • In Sudbury the left hand rule is considered a best practice, and should be our default and standard switch pulling procedure. Other sites may have different switch pulling procedures that are equally as good. • At times, due to equipment position, PPE, site specific training, or other factors, applying the left hand rule may not be the safest or most practical approach. In those cases, after discussion with your supervisor, the following alternate procedure may be used. • When operating a switching device; • asses the hazards • determine the safest place to position your body to limit exposure • assure footing is secure • maximize the distance between the device and your torso/face • avert your face (unless wearing a face shield) • open/close the device using a good leather glove

17. Thank you!