Risk assessment Nemko, 2018-02-06 Geir Hrthe Jon Ivar Tidemann 2 - - PowerPoint PPT Presentation

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Risk assessment Nemko, 2018-02-06 Geir Hrthe Jon Ivar Tidemann 2 - - PowerPoint PPT Presentation

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Risk assessment Nemko, 2018-02-06 Geir Hrthe Jon Ivar Tidemann 2 13.06.2017 Risk? Probability x Speed? Severity Dark? = Car? Wet? Risk Size? Distance? Speed? Fire Truck? 3 Risk? Probability Severity 4 Risk? Risk analysis

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Risk assessment

Nemko, 2018-02-06

Geir Hørthe Jon Ivar Tidemann

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13.06.2017 2

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3

Risk?

Speed? Distance? Wet? Dark?

Probability

Car? Fire Truck? Speed? Size?

Severity x = Risk

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4

Risk?

Probability Severity

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5

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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8

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

Find Risk level:

  • use risk table.

Acceptable risk?

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Risk reduction

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

  • 1. Reduce inherent hazard
  • 2. Safeguarding
  • 3. Information
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Risk assessment, Part II

Nemko, 2018-02-06

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 This analysis has to be documented and included in the technical documentation, unless risk assessment is included in the harmonized standard.

Yes it is- mandatory to do risk analysis from April 20th, 2016

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TITLE 13

1. – identify the scope and target users of the product 2. – identify the intended use and reasonably foreseeable misuse 3. – identify the hazards during each life cycle, such as during: design, manufacture, installation, maintenance, repair and disposal 4. – estimate the risks caused by each identified hazard 5. – if the results of the risk assessment show that the remaining risk is at a tolerable level, no further action is needed 6. – if not, risk reduction has to be implemented 7. – the loop is repeated until the remaining risk is reduced to a tolerable level.

The Risk Process step by step

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Adviced start: Brainstorming

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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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Example 1- defining hazards with a product and calculate the risk

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07.02.2018 TITLE 20

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

What is the risk for this to happen?

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07.02.2018 TITLE 21

  • 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 and get burned.

Scenarios

If child grips cord-then it falls down

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07.02.2018 TITLE 22

Overall probability and severity

Probability: 1/20 x1/100x 1/10 x 1/2 = 1/ 40 000 (5% X 1% X 10% X 50% ) Ref: http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A32010D0015

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07.02.2018 TITLE 23

Result –Low risk

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Example of risk reduction

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Tolerable level and the 3 step method

Step Reducing hazard

1 2 3

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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 3

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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

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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 29

  • Cenelec Guide 32, Annex D:

Final documentation to put into technical file

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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)

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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COMPANY PRESENTATION 15.05.2013 31

nemko.com

Any questions?

For assistance contact: geir.horthe@Nemko.com jonivar.tidemann@Nemko.com