TTBS Standards Database
TTS/IEC CISPR 12:2007
Vehicles, Boats and Internal Combustion Engines - Radio Disturbance Characteristics - Limits and Methods of Measurement for the Protection of Off-Board Receivers
| Subject Area | ICT - Information and Communications Technology |
| Year of Declaration | 2007 |
| Status | Voluntary |
| ICS Number | 31.100.10 |
| Stage | Withdrawn |
| Number of Pages | 109 |
| Price | Available on request |
Scope of this Standard
The limits in this International Standard are designed to provide protection for broadcast receivers in the frequency range of 30 MHz to 1,000 MHz when used in the residential environment. Compliance with this standard may not provide adequate protection for new types of radio transmission or receivers used in the residential environment nearer than 10m to the vehicle, boat or device. This standard applies to the emission of electromagnetic energy which may cause interference to radio reception and which is emitted from a) vehicles propelled by an internal combustion engine, electrical or both (see 3.1); b) boats propelled by an internal combustion engine, electrical means or both (see 3.2). Boats are to be tested in the same manner as vehicles except where they have unique characteristics as explicitly stated in this standard.; c) devices equipped with internal combustion engines (see 3.3). See Annex G for a flow chart to determine the applicability of CISPR 12. This standard does not apply to aircraft, traction systems (railway, tramway and electric trolley bus), or to incomplete vehicles. In the case of a dual-mode trolley bus (e.g. propelled by power from either a.c/d.c mains or an internal combustion engine), the internal combustion propulsion system must be included, but the a.c/d.c mains portion of the vehicle propulsion system is excluded from this standard. The measurement of electromagnetic disturbances while the vehicle is connected to power mains for charging is not covered in this standard.
N.B.: Any national customer wishing to acquire an adopted IEC standard can purchase the identical IEC International Standard from the IEC Central Office. For more information, please contact TTBS' Standards Information Centre at telephone (868) 662-8827 ext. 2033 or email:ttbs@ttbs.org.tt