Acropolis Family IP Testing: Explorator chipper #1 (Initial Failure)
To provide adequate protection from liquid ingress under expected installation scenarios while installed right-side-up, Acropolis artefacts should demonstrate ingress protection ratings of at least IPx3 to ensure they are ``protected against drops of rainwater at up to 60 degrees from the vertical''. While this will protect artefacts within Hyper-Soundwalk Series pop-up exhibitions, to provide additional security and increase installation options, the optimal Acropolis family liquid ingress protection rating is IPx4. Therefore, the minimum enclosure IP rating for Acropolis family artefacts is IP33, while the optimal rating is IP54.
This footage shows controlled liquid ingress tests that were conducted to supplement the in-situ data. For the test, Explorator chipper was `installed' in a shower-basin suspended in the air using typical exhibition hardware. Then, to simulate torrential rain, the shower head was directed at the enclosures from 2 metres at a 45 degree angle. The enclosures were subjected to a water flow of 6.98 litres per second for at least ten minutes before examining the enclosures for liquid ingress.
In this first test, several ingress issues were detected with the enclosure design. The first problem can with a number of the topcap interface components. The artefact was in storage and moved several times since its last “exhibition”. As a result, many of the enclosure fasteners became loose while one of the enclosure acrylic outside rings was broken. I failed to adequate tighten and inspect these possible ingress points.
The second major source of ingress identified with this test came at the topcap’s seal with the acrylic cylinder. For approximately ¼ of the parameter, the seal was compromised causing further ingress. This video shows the test that generated these failures along with a little bit of my investigation and troubleshooting work afterwards. I hope you enjoy, this footage. Further improvements to the enclosure design have been made and test footage for the improved design will be posted soon =).
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8 дек 2022
