EN 12767: 2019 Performance Class for the Passively Safe Cabinet

EN 12767: 2007 Impact Test

The Passively Safe Cabinet underwent its crash testing back in 2013/14, according to the method described in BS EN12767: 2007.  The cabinet complied with the evaluation criteria in the first, low speed impact test (35 kph).  This produced a THIV (Theoretical Head Impact Velocity) value of 7 kph and ASI (Acceleration Severity Index) of 0.2 upon impact with the car.  It was then tested at 100 kph with similar results and producing THIV and ASI figures of 10 kph and 0.5 respectively.

The breakaway characteristic of the Passively Safe Cabinet (i.e. no energy absorption on impact) and the results of the low and high speed crash tests in 2013/14 gave the Ritherdon cabinet an occupant safety level classification of 100NE3.

The story of how we developed the Passively Safe Cabinet is presented here.

EN 12767: 2019 Performance Classification

The new version of EN 12767: 2019 and the UK annex are due out later this year.  However, from the final draft and discussion at the UK Roads Passive Safety Workshop (25th June), it looks like the main changes from the current norm include the consideration of:

  • the foundation backfill type (S = standard aggregate, X = Special, R = rigid.  For example, if the product was tested in a rigid, concrete foundation, then it must be installed this way),
  • collapse mode of the product (Separation Mode (SE) or No Separation (NS) mode),
  • whether the direction impact would affect breakaway performance (Single Direction (SD), Bi-directional (BD) or Multi-directional (MD),
  • an assessment of roof damage (taken from the MASH – Manual for the Assessment of Safety Hardware – test method in the US, with Class 0 for < 102 mm dent and Class 1 for a dent >=102 mm),
  • plus the introduction of a new performance classification of the passively safe product, based on the above.

Ritherdon Passively Safe Cabinet EN 12767: 2019

Since the testing in 2013/14 produced extensive data, it is possible to re-assess the performance of the Passively Safe Cabinet.  This is the new classification, along with an explanation:

  • Speed class = 100.  Along, with the mandatory, 35 kph test, the high speed test was 100 kph.
  • Energy absorption category = NE.  Negligible energy absorption upon breakaway.
  • Occupant safety class = B.  This is the highest safety class for a product other than, e.g., plastic bollards.
  • Backfill type = R.  Our cabinet was installed in a concrete foundation for the test.  Therefore, this is how it should be installed on site.
  • Collapse mode = SE.  The Passively Safe Cabinet is a breakaway cabinet.
  • Direction class = SD.  The Passively Safe Cabinet does not have an axis of symmetry.  Therefore, it should be installed in the same orientation as tested.
  • Risk of roof indentation = 0.  There was no damage to the roof of either test car.

This can be summarised as 100-NE-B-R-SE-SD-0.

If you would like any more information on the testing, use or installation of the Ritherdon Passively Safe Cabinet, please contact us.

Ben Ritherdon