Yes, I have had China Customs open a shipment of 10 powered speakers and find 
one power cord was not from an approved manufacture on our critical components 
list.
We were short one cord set so I had used an engineering sample… Had right plug 
and cordage, just not on our products components list.
Customs returned the shipment to USA as non compliant.

Chuck

From: Ralph McDiarmid <[email protected]>
Sent: Friday, August 11, 2023 6:01 PM
To: [email protected]
Subject: Re: [PSES] Friday Question - Line Cords in China


[THIS EMAIL IS FROM AN EXTERNAL SENDER]
How would the customs folks in those countries check appliance line cords ?   
Do they open boxes, pull contents, and inspect?

If the USA plug is not rated for higher voltage, does it really present a 
hazard ?  (compliance vs safety)  The USA/Canadian plugs have a LOTS of 
creepage distance between conductors.

From: Douglas Powell <[email protected]<mailto:[email protected]>>
Sent: Friday, August 11, 2023 7:00 AM
To: [email protected]<mailto:[email protected]>
Subject: [PSES] Friday Question - Line Cords in China

All,

I was talking with a client recently about shipping line cords to various 
countries around the world and how some do not allow the incorrect cords within 
a shipment while others do. Brazil, as far as I know, does not permit incorrect 
cordage. Argentina, Australia, and China (PRC) are all mutually exclusive. 
South Africa and India are mutually exclusive. Japan, Taiwan, and the United 
States are all mutually exclusive. If not prohibited, it is frequently cheaper 
to include multiple cords rather than create multiple regional SKUs when 
products are in low-volume production.

That said, apparently the China market often likes to use US-style receptacles 
(types A or B), even though they use 220 V (😬). The US-style plug has better 
density (twice as many receptacles in the same space as the China receptacle 
(Type C, or I ?), and with the US receptacles, there are many more aftermarket 
cable options available.  So I suppose that's my question: "Is this usage 
typical in China?"

Of course, the big issue is that the US plug is not rated for the higher 
voltages, even though historically some people may say it works.  I even fouind 
a website that shows this, 
https://www.travelchinaguide.com/essential/electricity.htm

I believe it is critical for manufacturers to not condone the use of the US 
plug in this manner, which appears to be common practice. And I usually advise 
that this type of usage should never be described, recommended, or mentioned in 
any manuals, brochures, or other written material produced by a company, either 
externally or internally. If anyone is injured and an investigation reveals 
agreement with this usage, the company may be held liable.

Thoughts??

-Doug


Douglas E Powell
Laporte, Colorado, USA
[email protected]<mailto:[email protected]>
LinkedIn<https://www.linkedin.com/in/coloradocomplianceguy/>

(UTC-06:00, US-MDT)


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