Standard No.:	GB 4785-2007
English Name:	Prescription for installation of the external lighting and light-signalling devices for motor vehicles and their trailers
Chinese Name:	汽车及挂车外部照明和光信号装置的安装规定
Chinese Classification:	T38    Lighting and signaling equipment
Professional Classification:	GB    National Standard
ICS Classification:	43.040.20 43.040.20    Lighting, signalling and warning devices 43.040.20
Issued by:	AQSIQ, SAC
Issued on:	2007-11-1
Implemented on:	2008-6-1
Status:	superseded
Superseded by:	GB 4785-2007/XG1-2009 Prescription for installation of the external lighting and light-signalling devices for motor vehicles and their trailers (including Amendment 1) GB 4785-2019 Prescription for installation of the external lighting and light-signalling devices for motor vehicles and their trailers
Superseded on:	2020-7-1
Superseding:	GB 4785-1998 Prescription for installation of the external lighting and light signalling devices for motor vehicles and their trailers
Language:	English
File Format:	PDF
Word Count:	19000 words
Price(USD):	200.0
Delivery:	via email in 1 business day

This standard specifies the technical requirements, test methods and test rules, etc. for installation of external lighting and light-signalling devices for motor vehicles and their trailers. This standard is applicable to M, N and O motor vehicles and their trailers.

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 Specification 5 Test Methods 6 Test Rules Annex A (Normative) States of Loading to be Taken into Consideration in Determining Variation in the Vertical Orientation of the Dipped-beam Headlamps Annex B (Normative) Diagrams for Some Definitions Annex C (Normative) Forward Visibility of Red Lights and Rearward Visibility of White Lights Annex D (Normative) Measurement of the Variation of Dipped-beam Inclination as a Function of Load Annex E (Normative) Example for Initial Adjustment Indication Annex F (Normative) Headlight Levelling Controller in 4.3.2.6.2.2 of This Standard