Horn—Forward Warning—Electric—Performance, Test, and Application
- Ground Vehicle Standard
- J1105_200610
- Revised
Scope
Rationale
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a
Broadened the scope of the standard to include nominal system voltages other than 12 and 24 V.Reason: To establish functional, environmental, and life cycle requirements for horns used in applications with nominal system voltages other than 12 or 24 V, such as battery powered vehicles.
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b
Added a maximum horn activation delay of 100 ms.Reason: To insure timely horn activation after power application.
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c
Removed sections which gave precautions regarding Multi-Instrument Systems, Calibration, Weather effects and use of windscreens.Reason: Section 5 states a requirement that persons technically trained and experienced in current techniques of sound measurement should select and operate the equipment. Such personnel will be aware of these precautionary measures.
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d
Added a definition of “Sample Horn”.Reason: To insure that horns tested according to this standard are representative of production.
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e
Added requirement that the same sample horn be used for all of the Functional, Environmental, and Life Tests.Reason: To clarify the intent of the standard to eliminate the possibility of a different sample horn being used for each of the test procedures.
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f
Revised the predominant sound frequency lower limit requirement from 710 to 250 Hz.Reason: The majority of vehicle horns are low frequency devices that operate at approximately 350 Hz.
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g
Revised the test distance requirement from horn to microphone to reduce the effect of near field measurement errors.
Recommended Content
Data Sets - Support Documents
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Table 1 | SYSTEM TEST VOLTAGES | |
TABLE 2 | MEASURING DISTANCE VERSUS FREQUENCY | |
TABLE 3 | SOUND LEVEL TYPE RATING |
Issuing Committee
OPTC3, Lighting and Sound Committee
OPTC3 addresses standards related to sounds, lighting and marking for off-road, self-propelled work machines, and equipment. This committee reports to ConAg Council through OPTC. ConAg Council covers machines described in SAE J1116 which includes machines defined in ISO 6165, ISO 6814, and ISO 22242, with regards to activities supporting; • Creating consensus SAE standards, recommended practices, and information reports • Harmonizing relevant SAE documents with ISO documents • Assisting the US with the creation and maintenance of ISO standards through US TAGs o ISO/TC 127 --- Earth-moving machinery o ISO/TC 195 --- Building construction machinery and equipment o ISO/TC 23/SC 15 --- Machinery for forestry Participants in this committee include OEMs, suppliers, consulting firms, government, and others across the construction and forestry industries.
Reference
Number | Title |
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ANSI/S1.1 | This document is not part of the subscrption. |
ANSI/S1.13 | This document is not part of the subscrption. |
ANSI/S1.2 | This document is not part of the subscrption. |
ANSI/S1.4 | This document is not part of the subscrption. |
ANSI/S1.40 | This document is not part of the subscrption. |
ASTMB117 | This document is not part of the subscrption. |
ASTMC423-02a | This document is not part of the subscrption. |
ASTME1050-98 | This document is not part of the subscrption. |
ISO9533 | This document is not part of the subscrption. |
J1116 | This document is not part of the subscrption. |
J1455_201703 | Recommended Environmental Practices for Electronic Equipment Design in Heavy-Duty Vehicle Applications |
J1849_202002 | Emergency Vehicle Sirens |
J184_201408 | Qualifying A Sound Data Acquisition System |
J994_201409 | Alarm—Backup—Electric Laboratory Performance Testing |
MIL-STD-810B | This document is not part of the subscrption. |