IS 1884-ANALYSIS OF INDIAN STANDARD FOR AUTOMOTIVE ELECTRIC HORN

IS 1884-ANALYSIS OF INDIAN STANDARD FOR AUTOMOTIVE ELECTRIC HORN

RELEASE DATE:2021-05-06 17:10
BriefThe Indian Standard for the electric horns of automotive vehicles (IS 1884:1993) specifies the mechanicai, electrical and acoustical requirements, methods of tests for б, 12 and 24 V electric horns for use in motor vehicles including those intended for two and three wheelers.




IS 1884 STANDARD
The Indian Standard 1884 (IS) was adopted by the Bureau of Indian Standards (BIS), after the draft finalized by the Automotive Electrical Equipment Sectional Committee had been approved by the Transport Engineering Division Council.
The horn shall be provided with a name plate or marking which ahsll convey the following information: Trade-name or name of the manufacturer, Type number, Rated voltage, Month and year of manufacture, Country of manufacture.


CLASSIFICATION
The automotive electric horns are classified based on either the dcsign or the environmental requirements. Based on the design, the horns are classified into the following types:

Type
Definition
Type 1
Ac horns of high frequency type primarily intended for mopeds, scooters and motor cycles employing magneto system 
Type 2A
Dc horns of high frequency type intended for two and three wheelers using storage battery
Type 2B
Dc horns of high frequency type intended for passenger cars and commercial vehicles employing dc system
Type 3
Dc horns of wind tone type intended for passenger cars and commercial vehicles 

SEQUENCE OF TESTS FOR TYPE APPROVAL

Test
Sequence
1
2
3
4
5
6
7
8
9
Visual examination and dimensional check
X
X
X
X
X
X
X
X
X
High voltage test
X
X
X
X
X
X
X
X
X
Current draw test
X
X
X
X
X
X
X
X
X
Operating voltage range test
X
X
X
X
X
X
X
X
X
Sound pressure level test
X
X
X
X
X
X
X
X
X
Insulation resistance ( humid ) test
X








Endurance test

X
X
X





Vibration test




X




Corrosion resistance test





X



Continuous operation test






X


Dust test






X


Damp heat ( cycling ) test






X


Water spray proof test if applicable







X

Water sealing test if applicable







X

Temperature stability test








X


WATER SPRAY PROOF TEST
The object of this test is to determine the suitability of the horn to withstand conditions of water spray. The sample horn shall be attached by its bracket to a rigid structure in the position recommended by the manufacturer, for horizontal projection of the sound waves. The horns shall be subjected to a precipitation of 2·54 mm of water per minute directed dounwards at an angle of 45° in the form of a spray, During the water spray test, the unit shall resolve about the vertical axis at a rate of four revolutions per minute. This test shall be continued for б hours. The unit shall then be allowed to drain for 1 hour.
At the end of the test, the horn shall function satisfactorily and shall pass the sound pressure level test. The depreciation in the sound pressure level shall be not more than 5 dB from the initial value. Strip examination shall show no evidencc of water ingress into the contact breaker and coil housing.


WATER SEALING TEST
This test shall be applicable to water sealed horns only. The test shall be conductcđ in accotdance with IS 9000 ( Part 1S/Sec 7): 1982 for a period of five minutes. The horns shall be completely immersed to a depth of 15 cm. 
At the end of the test, the horn shall function satisfactorily and shall pass the sound pressure levcl test. The depreciation in the sound pressure level shall be not more than 5 dB from the initial value. Strip examination should show no evidence of water ingress into the contact breaker and coil housing.



SERVICES PROVIDED BY ATIC
1. Testing and trial-testing of IS and AIS standards
2. India CMVR (whole vehicles and components), BIS (consumer products, automotive components and electronic information products), WPC/TEC (wireless communication products) certification services
3. Preparation and translation of a complete set of application materials
4. Factory audit guidance, accompanied by translation throughout
5. Direct co-operation with authorities and certification bodies without communication barriers
6. Local representative available

ABOUT ATIC

ATIC is a young technical service company from China, established in 2015. ATIC is committed to integrate domestic and international regulations, testing and certification resources with a global perspective in the context of globalization, and establish a new, specialized regulation research, testing and certification platform. With innovative Digital Reporting System (DRS), Customer Service Platform (CSP) and self-developed Global Vehicle Regulation Database (GVRD), ATIC’s compliance service covers more than 54 countries/regions globally, testing and certification service covers more than 30 countries/regions worldwide. ATIC serve more than 3,300 manufactures each year.


INDIAN CERTIFICATION PLEASE CONTACT

Jimmyv2
Jimmy Liang
Asia Homologation Department
Jimmy graduated from South China Normal University and has experience in internationally renowned testing and certification organizations.In ATIC he is focused on Asian automotive and consumer product regulation and homologation system research.
Phone: +86 15521437139