The resistance value of receiving unit fixing system is assessed by applying a force and then carrying out a tool attack test on the fixing attachments with the following steps:
a) An attempt shall be made to remove or weaken any external fixings.
b) A force shall be applied to the receiving unit.
c) A tool attack test shall be made on the fixing attachments.
11.2.2 Test specimen
The test specimen shall be an undamaged empty receiving unit and of the same design including apertures as used in the tool attack test. A test specimen which has previously been subjected to other tests may be used if these tests will not influence the result of the fixing system tool attack test.
If the deposit system includes a base as an option (see technical documentation) the fixing system will be tested for the alternative (with or without the base) deemed to result in the lowest resistance value.
11.2.3 Equipment
The following equipment shall be used:
— Means for applying a horizontal force of at least 100 kN to the sample, and which is able to measure the applied force with an accuracy of within ± 5 %.
— Steel plate to which the test specimen (receiving unit or the receiving unit base) shall be anchored, and which is capable of withstanding the full test force.
11.2.4 Attack tool restrictions
Only tools of categories A, B, C and D (except those listed in EN 1143-1:2012, Table A.6) may be used. Non- tools listed in EN 1143-1:2012, Table A.14 shall not be used.
11.2.5 Test criteria
The fixing system - tool attack test with force is completed when the fixing attachments for the receiving unit with or without its base is completely severed from the steel plate.
NOTE The receiving unit fixing attachments to the base or to the steel plate or the base fixing attachments to the steel plate can be severed.
11.2.6 Preparation
The test specimen shall be fixed to the steel plate by using the anchoring method according to manufacturer's instructions.
If the receiving unit has no base, fix the receiving unit to the steel plate using the anchoring method which the manufacturer recommends. If the receiving unit has a base, attach the base to the steel plate using the anchoring method which the manufacturer recommends and fix the receiving unit attached to the base using the anchoring method which the manufacturer recommends.
For a wall-mounted receiving unit, turn the receiving unit through 90° and attach it to the horizontal steel plate so that the steel fixing plate simulates the vertical mounting wall.
New fixing bolts and associated items shall be used for each test.
Components may be added to the receiving unit to facilitate the application of the required test force; for instance by welding either a steel bar to the receiving unit, against which a jack can be applied, or an attachment on which to pull.
The test shall be carried out with the receiving unit closed and locked.
11.2.7 Test procedure
11.2.7.1 Removing or weakening of external fixings
Before the force is applied, an attempt shall be made to remove or weaken any external fixings. This shall be done using category A hand (dis)assembling tools (see EN 1143-1:2012, Table A.1) for a maximum of 50 resistance units (RU).
11.2.7.2 Force
The force (maximum 50 kN for resistance grades D-0 to D-III and N-II to N-III. Maximum 100 kN for resistance grades D-IV to D-V and N-IV to N-X) shall be applied horizontally at the start of the test. For floor-mounted receiving units the force shall be applied
− +
0
100 10 mm below the top of the receiving unit. For wall-mounted
receiving units, the force shall be applied
− +
0
100 10 mm below the highest point of the receiving unit when
mounted according to 11.2.6 (See also Figure 1).
Dimensions in millimetres
Key 1 force
2 test specimen 3 steel plate
Figure 1 — Testing arrangements for applying the force
If during the test the angle from horizontal of the applied force exceeds ± 15°, the fixed mounted point of the load mechanism shall be repositioned to restore the horizontal force. The force shall, after the repositioning, be applied in the same horizontal direction.
The force shall be applied smoothly with a speed attained within 2 min to 3 min to reach the maximum allowed force. Applying the force may be stopped at any position where the following tool attack test is deemed to result in the lowest resistance value. The applied force shall be maintained for one minute and then released.
Wedges or other devices can be placed within gaps created by the applied force before repositioning of the force mechanism and before releasing the force if this is expected to result in a lower resistance value in the following tool attack test.
For receiving units with a base the force applied will be in a pushing direction and will continue to be pushed from the initially applied point while the test specimen tilts and effectively changes the height of the force application relative to the base of the test equipment (the steel plate in Figure 1). Pulling equipment may alternatively be used, but additional test equipment (such as welded-on or clamped brackets) shall be utilized for such pulling equipment so that the application of the force is compressive onto the test specimen.
11.2.7.3 Tool attack test on the fixing attachments
A tool attack test is carried out to completely sever the receiving unit (with or without its base) from the anchoring test equipment (the steel plate in Figure 1) by cutting or destroying the fixing attachments, which can be attacked through the receiving unit base, or between any gaps created by the force. Attacks to open the receiving unit door to gain access to the anchoring bolts are not allowed.
11.2.8 Test record
In addition to the information in 8.8 the following shall be recorded:
— result of removal or weakening the external fittings;
— position and direction of the applied force; repositioning of the force if any;
— maximum of applied force;
— position of the test specimen when starting the tool attack test on the fixing attachment.