List of hazard sources and risk assessment form of press brake

L: Possibility of accident		E: Frequency of exposure to hazardous environment		C: Consequences of accidents
Fractional value	Possibility of accident	Fractional value	Frequency	Fractional value	Consequence
10	It’s perfectly predictable	10	Continuous exposure	100	Catastrophe, and multiple deaths (10 or more)
6	Quite possible	6	Exposure during daily working hours	40	Disaster, several deaths (3-9 people)
3	Possible, but not often	3	Once a week, or accidental exposure	15	Very serious, 1-2 people died
1	Unlikely, completely unexpected	2	Monthly exposure	7	Serious serious injury and disability (disability level 1-4)
0.5	It’s impossible. It’s conceivable	1	Several exposures per year	3	Serious injury and disability (disability level 5-6)
0.2	Highly unlikely	0.5	Very rare exposure	2	Minor injury (disability level 7-10)
0.1	Practically impossible			1	Minor injury

Note: D ≥ 0 is a major hazard source.
Refer to twenty injury types:
1. Object strike
2. Vehicle injury
3. Mechanical injury
4. Lifting injury
5. Electric shock
6. Drowning
7. Burning
8. Fire
9. Falling explosion
15. Gunpowder explosion
16. Boiler explosion
17. Container explosion
18. Other explosions
19. Poisoning asphyxia
20. Other injuries.

No.	Activities	Description of equipment name, operation location, etc	Hazard source	Characteristics (possible consequences)	Risk evaluation				Risk level
No.	Activities	Description of equipment name, operation location, etc	Hazard source	Characteristics (possible consequences)	L- score	E-score	C-score	D- score	Risk level
1	Operation	During operation, maintenance or shutdown of equipment	Electrical circuit falling off and insulation damage	Get an electric shock	1	10	7	70	4
2	Operation	During operation, maintenance or shutdown of equipment	Short circuit heating and fire of electrical circuit	Fire	1	10	7	70	4
3	Replace abrasives	Operation and maintenance of equipment	Crush finger	Mechanical injury	1	6	3	18	5
4	Add hydraulic oil	Maintenance equipment	Replace hydraulic oil and drop from height	Fall from height	1	1	3	3	5
5	Check the oil pump	Operation and maintenance of equipment	High temperature scald of hydraulic oil tank	Scald	1	3	2	6	5
6	Cleaning equipment	Maintenance equipment	Equipment top cleaning drop	Fall from height	1	3	3	9	5
7	Feeding	Operating equipment	Put your hand into the grinder and hurt your finger	Mechanical injury	1	6	7	42	4
8	Feeding	Operating equipment	The material board scratched his hands and fell to hit his feet	Mechanical injury	3	6	2	36	4