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NHP Safety of Machinery - Hazard/Task Analysis & Risk Assessment Using AS4024.1:2014

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NHP Safety of Machinery - Hazard/Task Analysis & Risk Assessment Using AS4024.1:2014

Document Revisions

Document Revisons

Revised By?

Date of Revision

Signature of Document Editor

Site Documentation viewed

Electrical Drawings

Hydraulic Circuits

Pneumatic Circuits

Mechanical Layouts

Operating manuals

Maintenance Manuals

Safety Instructions

Material Safety Data Sheets

Site or Plant Contacts

Personnel Interviewed About Machinery

Name

Position

Purpose of this Assessment

Purpose of this assessment is to provide the recipient company with advice and guidance relating to the safety of the plant, equipment or machinery being assessed. All relevant Australian and European standards applicable will be used to assess each hazard.

Motivation of Company requesting this assessment

(check name not set)

Service Provided

The risk assessment model being used is a widely acceptable form of examination for plant, equipment or machinery and work practices. The approach is a standardized set of approaches governing hazard identification, evaluating that risk posed to personnel. The assessment will give the reader an informed view on how likely a hazard would be to occur and what could be done to mitigate against the hazard occurring in the future.

Phases of machine operation being assessed

Transport

Cleaning

Maintenance / Repair

De-commisioning

Operation

Disposal

Installation

Assembly / Installation

Basic Machine Limits

Manufacturer / OEM

Machine Importer or supplier

Machine Name

Machine Serial Number

Are operators trained to use equipment?

Who is responsible for maintenance & repair?

Who is responsible for cleaning and clearing of jams etc?

Are maintenance staff trained on equipment?

What is the normal maintenance interval?

Is machine being used in it's intended environment?

Basic Description of Control System

What is the control voltage?

What is the main power supply voltage?

Does the machine have Hydraulic Controls

What is the Hydraulic Pressure in Bar?

Does the machine have Pneumatics controls?

What is the Compressed Air Pressure in Bar?

Details relating to hazard and tasks

Description of all Hazards

Photograph of Hazard

Area of Machine associated with hazard?

Task or operation?

Types of Hazards associated with the task?

Hazard Description

Hazard Rating Number - multiply DPH x FE x LO x NP to get HRN - the number determines the Risk Level.

DPH - Degree of Possible Harm

FE - Frequency of Exposure

LO - Likelihood of Occurance

NP - Number of Persons affected / in hazardous area

HRN - Hazard Rating Number ( LO x FE x DPH x NP = HRN)

Residual Risk Reduction

Residual Risk Reduction Measures

DPH - Degree of Possible Harm after Risk Reduction

FE - Frequency of Exposure after Risk Reduction

LO - Likelihood of Occurrence after Risk Reduction

NP - Number of Persons affected / in hazardous area

HRN - Hazard Rating Number ( LO x FE x DPH = HRN) after Risk Reduction

Category of Control required (AS4024.1501:2014) if Guarding solution requires SRP/CS and not just a mechanical guarding.

Severity of Hazard

AS4024.1-2014 Category B+1Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned.Category 1 - Well Tried Safety Components and principles - widely used with successful components, made and verified for use in safety circuits.

Frequency of Hazardous Event

Possibility of Avoiding the Hazard(s)

AS4024.1-2014 Category 1 (with over-dimensioning and Fault exclusion) or Category 2Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned.Category 1 - Well Tried Safety Components and principles - widely used with successful components, made and verified for use in safety circuits.ORCategory 2 - Category B shall apply + safety functions shall be checked by the machine control system at suitable intervals. If manual checks are performed then this should be documented. Check shall generate a fault indication if a fault is detected

AS4024.1-2014 Category 2 (with over-dimensioning and Fault exclusion) or Category 3Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned.Category 2 - Category B shall apply + safety functions shall be checked by the machine control system at suitable intervals. If manual checks are performed then this should be documented. Check shall generate a fault indication if a fault is detectedORCategory 3 - Category B shall apply + shall be designed so that a single fault in any part of the SRP/CS does not lead to a loss of safety function. Wherever reasonably practicable, the single fault shall be detected at or before the next demand upon the safety function.

Possibility of Avoiding the Hazard(s)

AS4024.1-2014 Category 3Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned.Category 3 - Category B shall apply + shall be designed so that a single fault in any part of the SRP/CS does not lead to a loss of safety function. Wherever reasonably practicable, the single fault shall be detected at or before the next demand upon the safety function.

AS4024.1-2014 Category 4Category B - Well Tried Principles - components - designed and constructed to withstand expected influences. Be correctly protected and dimensioned.Category 4 - Category B shall apply + a single fault in SRP/CS does not lead to loss of safety function and the single fault is detected at or before the next demand of the safety functions i.e. immediately or at the end of the machine operating cycle. If detection is not possible then an accumulation of faults shall not lead to a loss of safety function.