AS 1891.4 – 2009 Industrial Fall Arrest Systems and Devices Part 4
AS 1891.4 – 2009 Industrial Fall Arrest Systems and Devices Part 4 specifies requirements and sets out recommendations for the selection, safe use and maintenance of industrial fall-arrest systems and devices based on the use of safety harnesses, horizontal life lines and rails, fall-arrest devices, and associated lanyards, connectors, anchorages and fittings, as follows:(a) Selection Requirements and recommendations for determining the types of components of the system that would be appropriate to the envisaged usage.(b) Safe use Requirements and recommendations relating to the safe practices to be followed in the use of components and assemblies.(c) Maintenance Requirements and recommendations for inspection, storage, servicing and cleaning practices.
This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee SF-015, Industrial Height Safety Equipment (formerly Industrial Safety Belts and Harnesses), to supersede AS/NZS 1891.4:2000. It is one of five Standards in the series Industrial fall-arrest systems and devices. The series comprises the following Standards:
- 1891 Industrial fall-arrest systems and devices
- 1891.1 Part 1: Harness and ancillary equipment
- 1891.2 Part 2: Horizontal lifeline and rail systems
- 1891.2 Supp1 Supplement 1: Horizontal lifeline and rail systems—Prescribed configurations for horizontal lifelines
- 1891.3 Part 3: Fall-arrest devices
- 1891.4 Part 4: Selection, use and maintenance (this Standard)
This edition has been prepared with the specific intention of aligning it with the recently published edition of AS/NZS 1891.1. Principal changes from the previous edition are as follows:
- (a) Removal of ‘total restraint’ from the scope of the Standard as equipment provided solely for restraint purposes is not dealt with in the AS/NZS 1891 series of Standards. This Standard recognizes only ‘restraint technique’ which allows for the possibility of a fall and requires the use of fall-arrest rated equipment and anchorages. For clarification purposes a description of ‘total restraint’ is given in Appendix F.
- (b) Minimum allowable anchorage strength to be 12 kN or 15 kN depending on fall distance.
- (c) New terminology for harnesses (full or lower body) and positioning of fall-arrest attachment points.
- (d) Inclusion of twin-tail lanyards.
- (e) In-service values for the extension of personal energy absorbers in fall situations.
- (f) Lower body harness use restricted to limited free fall and restrained fall.
- (g) Updated requirements for operator training and assessment.
- (h) The term ‘suspension trauma’ has been changed to ‘suspension intolerance (trauma)’.
- (i) A belt or waist strap alone in lieu of a harness is no longer permitted for any of the applications in this Standard to protect against a potential fall.
This Standard Covers
SECTION 1 SCOPE AND GENERAL
- 1.1 SCOPE
- 1.2 OBJECTIVE AND PRINCIPLES
- 1.3 REFERENCED DOCUMENTS
- 1.4 DEFINITIONS
- 1.5 PERFORMANCE REQUIREMENTS
- 1.6 HIERARCHY OF CONTROL
SECTION 2 GENERAL REQUIREMENTS FOR SELECTION AND SAFE USE
- 2.1 SYSTEM AND EQUIPMENT SELECTION
- 2.2 SAFE USE OF EQUIPMENT AND SYSTEMS
- 2.3 FALL PROTECTION ON MOVEABLE PLATFORMS
SECTION 3 ANCHORAGES
- 3.1 ANCHORAGE SELECTION
- 3.2 SAFE USE OF ANCHORAGES
SECTION 4 HARNESSES LANYARDS, POLE STRAPS AND FITTINGS
- 4.1 DESIGNATION AND SELECTION OF HARNESSES
- 4.2 DESIGNATION AND SELECTION OF LANYARDS POLE STRAPS AND RELATED EQUIPMENT
- 4.3 SAFE USE OF HARNESS, LANYARD AND POLE STRAP SYSTEMS
SECTION 5 FALL-ARREST DEVICES, SELECTION AND SAFE USE
- 5.1 EQUIPMENT DESIGNATION AND SELECTION
- 5.2 SAFE USE OF EQUIPMENT
SECTION 6 HORIZONTAL LIFELINES AND RAILS
- 6.1 SYSTEM TYPES AND DESCRIPTION
- 6.2 SYSTEM AND EQUIPMENT SELECTION
- 6.3 SAFE USE OF SYSTEMS AND EQUIPMENT
SECTION 7 FALL CLEARANCE
- 7.1 GENERAL
- 7.2 CALCULATION AND ESTIMATION OF FACTORS
SECTION 8 EFFECT OF EQUIPMENT CONFIGURATION ON FREE-FALL DISTANCE
- 8.1 EQUIPMENT PERFORMANCE
- 8.2 MEASUREMENT OF FREE-FALL DISTANCE
- 8.3 FALL DISTANCES
- 8.4 CONFIGURATIONS USING FIXED LENGTH LANYARDS
- 8.5 CONFIGURATIONS USING TYPE 2/3 FALL-ARREST DEVICES
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