FW: Locking Connectors [RE-wrenches]

Mark Frye markf at berkeleysolar.com
Thu Mar 1 16:09:15 PST 2007


OK,

It looks like it is pretty much coming out of the 2008 NEC. So that means
it's a matter of when AHJs adopt and enforce the new code.

Interestingly the locking connector is only to be required when installed in
a readily accesible location, so they technically won't be required on most
roof top installations.

I talked with Sharp USA and they also mentioned that transformerless
inverters are coming to the USA and that cables and connectors used with
transformerless inverters have to be double insulated. I don't find out
exactly where these requirements come from. He said they were working with
the connector manufactures and would make the change when it was right for
the "market".

Just tryin' to stay a little ahead of the ball...still...I haven't even worn
out my MC crimper and boot puller yet!

MPF


-----Original Message-----
From: Mark Frye [mailto:markf at berkeleysolar.com]
Sent: Thursday, March 01, 2007 3:25 PM
To: RE-wrenches
Subject: Locking Connectors


I hear tell that some day, perhaps as soon as Jan 2008, PV connectors will
be required to be of the locking type (as opposed to the current industry
standard of latching as allowed by 690.33 (C)).

Does anyone know where this is coming from?

Is it slated for the 2008 NEC? Or is it coming from some other standard
maker like IEEE or UL?

MPF


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