Risk Assessment Nemko, 2017-10-18 Geir Hrthe Jon Ivar Tidemann 2 - - PowerPoint PPT Presentation

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Risk Assessment Nemko, 2017-10-18 Geir Hrthe Jon Ivar Tidemann 2 - - PowerPoint PPT Presentation

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Risk Assessment Nemko, 2017-10-18 Geir Hrthe Jon Ivar Tidemann 2 13.06.2017 Risk? Speed? Dark? Wet? Distance? 3 Risk? Probability Speed? Dark? Wet? Distance? 4 Risk? Probability Car? Size? Speed? Fire Truck? 5 Risk?

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Risk Assessment

Nemko, 2017-10-18

Geir Hørthe Jon Ivar Tidemann

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13.06.2017 2

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3

Risk?

Speed? Distance? Wet? Dark?

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4

Risk?

Speed? Distance? Wet? Dark?

Probability

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5

Risk?

Probability

Car? Fire Truck? Speed? Size?

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6

Risk?

Probability

Car? Fire Truck? Speed? Size?

Severity

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Risk?

Probability Severity x = Risk

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Risk?

Probability Severity

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Risk?

Risk analysis = what are the risks? Risk evaluation = is risk acceptable? Risk assessment

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Risk level – what is ok?

Probability Severity

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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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13.06.2017 14

Risk reduction

NEMKO EUROPE

  • 1. Reduce inherent hazard
  • 2. Safeguarding
  • 3. Information
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Risk reduction – an example

  • 1. Reduce inherent hazard
  • 2. Safeguarding
  • 3. Information
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Risk assessment – part II

Nemko, 2017-10-18

Jon Ivar Tidemann

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  • 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

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Starting to define hazards

Incidents Design knowledge Harm Use Accidents

RISK

Reduce below Tolerable level

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  • 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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20.10.2017 TITLE 21

Where to find Cenelec Guide 32

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

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Annex A of the guide

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Annex D of the guide

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20.10.2017 25

Example 1-

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20.10.2017 TITLE 26

  • 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?

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20.10.2017 TITLE 27

  • 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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20.10.2017 TITLE 28

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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20.10.2017 TITLE 29

Result –Low risk

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Example 2

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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

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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

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13.06.2017 NEMKO EUROPE 33

  • Cenelec Guide 32, Annex D:

Final documentation to put in technical file

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  • 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