All Northcone's collision proof poles comply with the SS-EN 12767 standard, which is the norm for collision poles. The standard is developed by the European standardization organization CEN and contains three different tasks;
1) Crash speed
2) Energy absorption category
3) Safety level for passengers.
Regarding crash speed, a crash test is carried out by a small car 900 kg with driver (one doll weighing 78 kg), crashing into a fully equipped pole (electric cables, luminaire) in 35 km/h and then at higher speed (50, 70, 100 km/h) depending on pole. A pole tested and qualified at 100 km/h can be used on roads regardless of speed. Posts tested and qualified at 70 km/h should not be used on roads with speeds above 70 km/h etc.
Regarding energy absorption, there are 3 qualification levels; HE (High-Energy), LE (Low-Energy) and NE (Non-Energy).
If you finally look at the injury risk class then this is a measure of how large the damage sequence on the driver (the doll) will be during the collision with the pole. In the evaluation, the terms ASI (Acceleration Severity Index = acceleration in X, Y, Z joints), THIV (Theoretical Head Impact = with which speed the driver's head continues in the direction of travel, a certain time after the car's impact in the post) and PHD (Post-Impact) deceleration) are measured. The injury risk level thus indicates the level of damage for passengers, where 3 is the best value, ie the lowest damage. Poles with the highest level 3 can be used on all roads, level 2 posts can be used on roads with requirement level 2 or lower.
Given the definitions above, a 100 HE3 classified pole means that it has been tested in 100 km/h, meets the requirements for HE (ie energy absorption) and at the same time holds the highest safety level for drivers and passengers, ie 3.
Northcone's lighting poles are today certified in both classes HE and NE. All posts are also CE marked and approved according to SS-EN 40 (standard for lighting poles).