IS 4362: 1979 Specification for Number Plate Lighting Devices for Automobiles

The IS 4362: 1979 standard, titled “Specification for Number Plate Lighting Devices for Automobiles”, outlines the key requirements and guidelines for lighting devices used to illuminate the number plates of motor vehicles. Below is a summary of the main content:

Scope:
This standard specifies the technical requirements for number plate lighting devices designed for use in automobiles, ensuring that the number plate remains visible under various driving conditions.

General Requirements:
The lighting devices must be designed to provide adequate illumination to the number plate without causing glare or distractions to other road users. The lighting should be sufficient to allow the number plate to be read clearly from a certain distance, typically under low-light conditions.

Design and Construction:
• The device should be constructed to withstand the typical environmental conditions encountered by motor vehicles, such as vibration, dust, and moisture.
• Materials used in the construction must be durable and corrosion-resistant to ensure long service life.
• The light source should be positioned in such a way that it illuminates the entire number plate uniformly.

Performance Specifications:
• The intensity of the light must meet specific luminance levels, ensuring visibility without causing excessive brightness.
• The device should comply with the prescribed power consumption and operational efficiency standards.
• The lighting must maintain performance over a specified range of operating temperatures and humidity conditions.

Testing Requirements:
The lighting devices must undergo a series of tests to verify their compliance with the standard. These tests may include:
• Illumination test: To ensure the number plate is sufficiently illuminated.
• Durability test: To confirm the device’s ability to function correctly after exposure to environmental stressors such as vibration, dust, and moisture.
• Electrical test: To ensure electrical safety and stability during operation.

Marking and Labeling:
The device should be marked with essential information, such as the manufacturer’s name, model number, and voltage requirements. Proper labeling ensures traceability and compliance with safety regulations.

Installation Guidelines:
The standard also provides guidelines for the correct installation of number plate lighting devices to ensure optimal performance and compliance with regulatory requirements.
In summary, IS 4362: 1979 ensures that number plate lighting devices for automobiles meet specific safety, performance, and durability standards to improve road safety and vehicle identification under various driving conditions.

IS 4362 : 1979 Specification for Number Plate Lighting Devices for Automobiles

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LPCE-2(LMS-9000) High Precision Spectroradiometer Integrating Sphere System

LMS-6000 Portable CCD Spectroradiometer

LSG-1950 Goniophotometer for Automotive and Signal Lamps

LVD-100KG Electrodynamic Vibration Generator System

SC-015 Dustproof Testing Machine | Dust Proof Chamber

YWX/Q-010 Salt Spray Test | Salt Spray Test Chamber