Risk Assessment

Nemko, 2017-10-18Geir Hørthe

Jon Ivar Tidemann

13.06.20172

3

Risk?

Speed?

Distance?

Wet?

Dark?

4

Risk?

Speed?

Distance?

Wet?

Dark?

Probability

5

Risk?

Probability

Car?

Fire Truck?

Speed?

Size?

6

Risk?

Probability

Car?

Fire Truck?

Speed?

Size?

Severity

7

Risk?

Probability

Severityx

=

Risk

8

Risk?

Probability

Severity

9

Risk?

Risk analysis = what are the risks?

Risk evaluation = is risk acceptable?

Risk assessment

10

Risk level – what is ok?

Probability

Severity

11

Risk standard

- Inherent Hazard

- User

- Location

- Use / Misuse

- Faults

- Statistics

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Risk report

Product’s hazards:

- Sharp

- Kinetic energy

- Fire

- etc

User:

- Age, disability , trained ..

- Intended / non intended user

- Use / Misue

- etc

Describe scenario:

- Child breaks lamp

and gets a burn

- etc.

Level of Severity:

- cut

- burn

- etc

Probability:

- e.g. < 1/100 000

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Risk report

Level of Severity:

- cut

- burn

- etc

Probability:

- e.g. < 1/100 000

Find Risk level:

- use risk table.

Acceptable

risk?

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Risk reduction

NEMKO EUROPE

1. Reduce inherent hazard

2. Safeguarding

3. Information

15

Risk reduction – an example

1. Reduce inherent hazard

2. Safeguarding

3. Information

Risk assessment – part II

Nemko, 2017-10-18Jon Ivar Tidemann

17

• LVD Directive 2014/35/EU, Annex III, 2.

The technical documentation shall include an adequate analysis and

assessment of the risk(s).

The Blue Guide gives further information.

This analysis has to be documented and included in the technical

documentation, unless risk assessment is included in the harmonized

standard.

( Nemko comment-last part apply for EN 61010, Machinery products,

Medical products)

You have to -

mandatory risk analysis from April 20th, 2016

Starting to define hazards

Incidents

Design

knowledge

Harm

Use

Accidents

RISKReduce below

Tolerable level

• All life phases to be considered

• a) transport;

• b) assembly and installation;

• c) commissioning;

• d) use;

• e) de-commissioning, dismantling and disposal as far as

safety is concerned.

Hazard identification in all life phases

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Where to find Cenelec Guide 32

https://www.cenelec.eu/membersandexperts/referencematerial/cenelecguides.html

Annex A of the guide

Annex D of the guide

20.10.201725

Example 1-

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• Assumptions:

• It is a child of age 1-3 in 5% of homes having an iron

• User of the iron is away for some seconds in 1% of

situations.

• Child try to raise and catch the iron in 10% of situations

What is the risk for this to happen?

20.10.2017 TITLE27

• Iron need to tilt and fall down-50% probability

• What happens then?

• Hit in the head

• Falls down and brakes so child can get electrical shock

• Falls down on the body of the child

• Does not brake and child take it up to iron on body

• Falls down and scares the child to run away

Sequence for accident to happen

If child grips cord-then 50%

PROBABILITY TO BE HIT!

Otherwise approx 25%

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Overall probability and severity

Probability:

1/20 x 1/10 x 1/100 x 1/2 x 1/2 = 1/ 80 000

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Result –Low risk

Example 2

Injury scenario

(include user)

Injury type

and body

part

Severity

(1-4)

Probability of injury Overall possibility Risk

(L/M/H/S)

Example 2 - Listing of hazards and calculations

Are all the risks tolerable for your company? Use the 3 step method

for reduction of risk

Example 2 - Tolerable level and the 3 step method

Step Reducing hazard

1 - LED instead of Incandescent,

- Plastic enclosure instead of Glass,

- Avoid child appealing design

2 - Batteries or below 42 volts ,

- Fixed instead of movable

3 Not recommended

13.06.2017 NEMKO EUROPE33

• Cenelec Guide 32, Annex D:

Final documentation to put in technical file

• Services for Risk Assessment:

• Seminars

• Webinars

• In-house seminars

• Risk Assessment according to Cenelec Guide 32.

Contact your local Key Account Manager

Services from Nemko