SN EN 61478 : AMD 1 2003

1 Scope
2 Normative references
3 Definitions
4 Classification
   4.1 Category 1
   4.2 Category 2
5 Requirements
   5.1 General physical requirements
   5.2 Category 1 physical requirements
        5.2.1 Base section
        5.2.2 Ladder extensions
        5.2.3 Stiles
        5.2.4 Fixing systems
        5.2.5 Connecting device
        5.2.6 Cradles
   5.3 Category 2 physical requirements
        5.3.1 Base section
        5.3.2 Ladder extensions
        5.3.3 Stiles
        5.3.4 Connecting device
   5.4 Mechanical requirements
        5.4.1 General mechanical requirements
        5.4.2 Category 1 mechanical requirements
        5.4.3 Category 2 mechanical requirements
   5.5 General electrical requirements
        5.5.1 Conductive parts
        5.5.2 Insulating parts
   5.6 Marking
6 Type tests
   6.1 General
   6.2 Visual, dimensional and functional inspection
   6.3 Durability of markings
   6.4 Mechanical tests
        6.4.1 General
        6.4.2 Category 1 ladders
        6.4.3 Category 2 ladders
   6.5 Electrical tests
        6.5.1 Electrical test on mechanically aged
               ladder
        6.5.2 Electrical test on Category 2 individual
               sections
7 Routine tests
   7.1 General
   7.2 Visual inspection
   7.3 Operational inspection
   7.4 Electrical test
8 Quality plan and acceptance tests
   8.1 General
   8.2 Records
9 Modifications
Annex A (normative) Chronology of tests
Annex B (normative) Acceptance tests
Annex C (normative) Sampling procedure
Annex D (informative) Recommendations for in-service care
Annex ZA (informative) Normative references to international
         publications corresponding European publications

Applicable to fully insulating spliced or hook ladders with extension or having a combination of insulating and conductive sections and used for live working on a.c. or d.c. electrical installations at 1000 V and above for a.c. and 1500 V and above for d.c. The ladders are classified functionally as Category 1 and Category 2. This standard concerns only ladders made of synthetic material. These ladders are used, to provide access, generally on overhead line structures and to facilitate live working, either hot stick, barehanded or a combination of both.