Condition based monitoring Flashcards
1
Q
Define a confined space?
A
A confined space is a compartment which has remained unventilated for more than 24hrs
2
Q
What are some confined spaces?
A
- Fuel tank
- Water tank
- Ballast tank
- STP’s
- Coffer dams
- Heat exchangers
3
Q
What are the hazards of confined spaces?
A
- Gases eg; methane,H2S
- Vapour or fumes from the contents of the tanks
4
Q
Precautions for entering a confined space?
A
- Leader gas monitor at head height ( tests for methane,oxygen and hydrogen sulphide) has a visual & audio alarm
- Safety sentry
- Comms between sentry & worker
- Sentry has BA
- Lifeline
5
Q
Before a confined space can be accessed what precautions must be observed?
A
Space is cool
* Force vented for 24hrs
* After 24hr atmosphere is tested if not safe it must be vented for a further 12hrs the retested
* Gass free certificate issued
