Connections and Understanding [RE-wrenches]

[Bill Brooks]

Matt and John B.,

Great input. The minute any of us think we know it all and stop learning is
the day we seal our ultimate fate. We absolutely need connectors to get the
costs down and the MC connector is a good one. Installers will always invent
ways to screw up installations, but I just have a bad feeling about a Y or
multiple-style harness with crystalline modules. Given the human tendency
for lazyness, I just see the years of pounding fusing into people's heads
going out the window with "clever" ideas from installers. Why do all those
pesky home runs when two wires will do. I'm not aware of any crystalline
module that can be paralleled into anything other than a SunnyBoy. Although
John B would love everyone to use SunnyBoy (I can't blaim him or disagree
with his biased opinion when it comes to batteryless systems), there are a
lot of other inverters out their that won't allow it. For now, the Y
connector should specify "use only in conjunction with specified modules for
use in parallel circuits with a SunnyBoy inverter". Currently, the
application is very limited. Once manufacturers catch on to the benefits, we
will see more inverters and modules made to take advantage of a Y-connector.
Keep pushing for improvement--we have a long way to go.

Bill.

-----Original Message-----
From: Matt Lafferty [mailto:pvpro at attbi.com]
Sent: Monday, May 20, 2002 7:35 AM
To: RE-wrenches at topica.com
Subject: Connections and Understanding [RE-wrenches]


Wrenches:

Sorry for the last one....accidentally hit Send before typing... (Bad PvPro!
Bad PvPro!)

While I prefer beer to wine (He lives closer to the Napa Valley than I
do...), I share Bill's concerns.

It is not specifically directed toward the MC-Paralell Branch connector, but
the very real possibility for misapplications in it's use.  This is not the
fault of Multi-Contact.  The same situation (leaving the string unprotected
by fuses) can and does occur with other methods of paralelling source
circuits.  It arises due to misunderstanding of series and paralell
circuits, overcurrent protection and its purpose, our glass as well as PV in
general.

....SNIP.....

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
This email was sent to: michael.welch at homepower.com

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9
Or send an email to: RE-wrenches-unsubscribe at topica.com

T O P I C A -- Register now to manage your mail!
http://www.topica.com/partner/tag02/register
==^================================================================