[TowerTalk] [Bulk] Antenna to Shack Ground Connection

[Jim Lux]

On 2/3/15 8:20 PM, Jim Brown wrote:
> On Tue,2/3/2015 8:05 PM, Jim Lux wrote:
>> TUV is another..
>
> TUV is European, Germany, I think. I don't know if there's reciprocity
> to North America.


They're on the OSHA list, all 5 or 6 of them

>
> Roughly 30 years ago, my partner and I participated in an effort within
> the community of sound system design consultants to get reciprocity
> between CSA (Canadian) and UL (US) testing labs, as well as the
> recognition of others like NRTL. It was a struggle, but we won.

CSA is on the OSHA list as well.

>
> That was a big deal, because in those days, UL test labs could get VERY
> expensive, thanks, in part, to some overzealous test engineers who
> seemed to think that small manufacturers were made of money. The guys at
> CSA were a lot more reasonable, so once reciprocity was granted, UL lost
> of a lot of business.
>
> Before we started, the situation was so bad that although NEC required
> anything connected to the power line to UL Listed, almost no
> professional products carried listing. Think JBL, Altec, Sony,
> Panasonic, ElectroVoice, and a lot of smaller pro companies you've never
> heard of. After 5 years or so, nearly everything we needed to build
> systems WAS listed.
>

when PC's started to be sold, that was a big deal in LA county, because 
the vast majority of "white box" PCs didn't have any approvals, and were 
illegal to sell.