Document ID: chunk:federal_register_of_legislation:F2022C01070:body:0:p13
Version: federal_register_of_legislation:F2022C01070
Segment Type: other
Provision Reference: 
Character Range: 35445–38135

Normal test conditions
 Voltage   U = (12 ± 0.2) V
Temperature    = (23 ± 5)C
7.2.2. Resistance to temperature and voltage changes
Compliance with the specifications defined under paragraph 7.2.1.1. shall also be checked under the following conditions :
7.2.2.1. Test temperature   = (-40 ± 2) C
 Test voltage   U =  (9 ± 0.2) V
 Storage duration  4 hours
7.2.2.2. For parts to be fitted in the passenger or luggage compartment
 Test temperature   = (+85 ± 2) C
 Test voltage   U =  (15 ± 0.2) V
 Storage duration  4 hours
7.2.2.3. For parts to be fitted in the engine compartment unless otherwise specified
Test temperature   = (+125 ± 2) C
Test voltage   U =  (15 ± 0.2) V
 Storage duration  4 hours
7.2.2.4. The VAS, in both set and unset state, shall be submitted to an excess volt­age equal to (18 ± 0.2) V for 1 hour.
7.2.2.5. The VAS, in both set and unset state, shall be submitted to an excess voltage equal to (24 ± 0.2)V for 1 min.
7.2.3. Safe operation after foreign body and water-tightness testing
 After the test for tightness to foreign body and water according to IEC 529-1989, for degrees of protection as in paragraph 7.1.2., the operation tests according to paragraph 7.2.1. shall be repeated.
7.2.4. Safe operation after condensed water test
 After a resistance-to-humidity test to be carried out according to IEC 68-2-30 (1980) the operation tests according to paragraph 7.2.1. shall be repeated.
7.2.5. Test for safety against reversed polarity
 The VAS and components thereof shall not be destroyed by reversed polarity up to 13 V during 2 min.
 After this test the operation tests according to paragraph 7.2.1. shall be repeated with fuses changed, if necessary.
7.2.6. Test for safety against short-circuits
 All electrical connections of the VAS must be short-circuit proof against earth, max. 13 V and/or fused.
 After this test the operation tests according to paragraph 7.2.1. shall be repeated, with fuses changed if necessary.
7.2.7. Energy consumption in the set condition
 The energy consumption in set condition under the conditions given in paragraph 7.2.1.2. shall not exceed 20 mA in average for the complete alarm system including status display.
7.2.8. Safe operation after vibration test
7.2.8.1. For this test, the components are subdivided into two types :
 Type 1 : components normally mounted on the vehicle
 Type 2 : components intended for attachment to the engine.
7.2.8.2. The components/VAS shall be submitted to a sinusoidal vibration mode whose characteristics are as follows :
7.2.8.2.1. For type 1
 The frequency shall be variable from 10 Hz to 500 Hz with a maximum amplitude of ± 5 mm and maximum acceleration of 3 g
(0-peak).