Long ago, when US auto manufacturers were the main stream norm, and they
worked out a deal with the FCC to regulate themselves and not be subject to the
FCC.
The FCC agreed since any interference would be obvious and the FCC has the
primary interference clause, thou shall not interfere, or they would impose
Federal regs on the auto industry.
If has worked well, but has not in the US, come up with a common set of auto
EMC standards.
So for Auto EMC, map out the "big three" requirements and stay under the
composite levels.
Aside: anyone remember non=resistive plugs and copper spark plug wires and
radios with tubes that used a vibrator (old style) to generate AC to then
generate the correct DC needed to run the radio ?
And listening to AM with cars around you ? Buzzzing noise !
ps. The EU is quite different.
- Bill Owsley
EMC First LLC (Jan 2022)
On Friday, December 17, 2021, 10:52:58 AM EST, Ken Javor
<[email protected]> wrote:
CISPR 25 is used for equipment-level emissions (CE & RE). This is for the
purpose of protecting on-board radio reception and has nothing to do with the
FCC. ISO 11452-X provide a variety of immunity requirements. And, as noted
previously, various OEMS have their own internal requirements. The only FCC
overview of any of this concerns SAE J551, where they measure vehicle-level
emissions at ten meters separation from the vehicle, for the protection of
roadside licensed broadcast receivers.
Ken Javor
Phone: (256) 650-5261
From: "James Pawson (U3C)" <[email protected]>
Reply-To: "James Pawson (U3C)" <[email protected]>
Date: Fri, 17 Dec 2021 12:05:33 -0000
To: <[email protected]>
Subject: [PSES] US vehicle EMC regulations
Hi all,
I’m familiar with UNECE Regulation 10 that covers EMC for vehicles and
Electronic Sub Assemblies in Europe.
Is there an equivalent set of vehicle EMC standards for the US?
Presumably CFR47 Part 15 applies to unintentional and intentional radiators as
well?
Thanks and all the best
James
James Pawson
The EMC Problem Solver
Unit 3 Compliance Ltd
EMC : Environmental & Vibration : Electrical Safety : CE & UKCA : Consultancy
www.unit3compliance.co.uk <http://www.unit3compliance.co.uk/> |
[email protected] <mailto:[email protected]>
+44(0)1274 911747 | +44(0)7811 139957
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