week 9 (safety management)

Question 1

What is a permit to work system?

Answer 1

Formal system based on a written form used to control certain types of work that are potentially hazardous.

Question 2

What does it rely on?

Answer 2

Communication (recording what people are told)
Safety (Ensuring that the site is safe before handover)
Tracking responsability.

Question 3

What are functions to check that the site is safe to work? (regarding flammable enviromnents)

Answer 3

Ignition sources (cleaning and checking for flammable atmospheres)
Residues present.

Question 4

what is Management by Walking Around?

Answer 4

Walking around the site and checking on individuals and company standards.
For example:
PPE not being worn
Contractors not qualified
Work starting before permit has been issued.

Question 5

What are types of changes which are made to an industry?

Answer 5

Form - Hardware / chemicals / Management / Staffing levels/ operating parameters.
Timing - Permanent / temporary / Emergency

Question 6

What are the functions to ensure appropriate authorisation for a PTW?

Answer 6

Communication of potential hazards
Ensure appropriate authorization
Check worksite is safe before work commences.

Question 7

What are residual hazards?

Answer 7

Vessels that have contained high flash point materials cannot be proved safe by gas testing alone as any leftover material could be flammable/toxic.
Especially if corroded metal is porous.
If that area is not checked need to assume that it contains hazardous material.

Question 8

What kind of changes require a management of change process to be made (examples)?

Answer 8

An update to a PID
Update to database
Change to operating practice

Question 9

What are the steps for a procedure change

Answer 9

1)- procedure assessed and deficiencies need to be identified.
2)- draft operating procedure has to be devised.
3)- Procedure has to be polished and refined with operators
4)- Operators trained with new procedure
5) operation of procedure must be reviewed for learnt lessons.

Question 10

What are some types of changes that need Moc?

Answer 10

Hardware
Chemicals
Management
Staffing levels
Operating parameters
Operating procedures
Maintenance
Control software

Question 11

what hazards are there with management of change?

Answer 11

Short staffing
No formal design work - HAZOP not done therefore operation runs incorrectly or dangerously
Miss informed staff