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External Access System
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1.
PROOF TESTINg:
1.1 The test objective is for the installer to prove their individual installation methodology for each type of base
material/fastener type or where working with unknown factors.
1.2 The vessel’s surveyor will have to approve the individual test regime and be satisfied it was done correctly. In
practice this normally means overseeing the test.
1.3 For new builds or for identical constructions, the proof test can be done off the vessel on representative sample
pieces. These should be long enough to hold a pair of cars in normal configuration plus the end stops. In practice,
500mm would be suitable.
1.4 This can be applied to future vessels if the construction is identical and as long it is properly documented.
1.5 In the case of retro-fits where the construction is not necessarily known (due to modifications, corrosion or
aging), the proof testing will have to be done in situ.
1.6 If done in situ, then we recommend testing in highest risk locations such as where crew gain access to the
system or at the ends of the tracks.
1.7 Subject to surveyor approval, the proof test procedure would be:
i. This is a static test. There is no drop load.
ii. The car is not expect to move under these conditions
iii. Attach a water bag to a single car.
iv. Fill to achieve a load of 1000kgs.
v. Hold for 3 minutes without deformation – paying particular to track/fastener stability.
vi. Drain/unload water bag, move and repeat in two further locations (or sample pieces).
vii. The system should remain functional.
2. INSTALLATION TESTINg:
2.1 This test objective is to ensure that the system has been installed correctly in practice and remains sound as it ages.
2.2 We recommend that each track is tested in at least 3 locations, typically at both ends and at any track joint or in
the middle.
2.3 Again subject to surveyor approval, each track should be tested on installation as per:
i. Attach a water bag to a single car.
ii. Fill to achieve a load of 600kgs.
iii. Test for 15 seconds per location.
iv. Repeat as necessary for each separate track.
2.4 Normal safety equipment operations requires testing post-installation and then 6 monthly routine inspection with
12 monthly testing.
2.5 Further testing and inspection of the EAS should be incorporated into the vessel’s standard operating practices and
into the vessel safety record.
1/09/10
Andrew Ash-Vie
Managing Director, Harken UK Ltd
Appendix B
