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Constructor 12 Electrical Ladder Diagram, Schematic and PLC Software
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ECN Forum

 Recent Activity at ECN Forum:

Come, Join Us!
Re: A publication manufacturers don't want you to read
Posted by sparky:
Originally Posted By: renosteinke
Quote:
Well, there's the problem, in one quote:

"the probability of fire ignition due to arc faults increases"

Paschen's law, as explained, asserts that there simply cannot be an arc between copper electrodes, through air, at less than 327 volts.

Forget (...)
Re: Phoenix Contact programmable relay PLC-V8C/PT-24DC
Posted by sparkyinak:
Anyone have any experience with these relays or any other Phoenix products? Good? Bad? Penny for your thoughts?
Re: Inspection Foibles
Posted by HotLine1:
I have not come upon the green screws, or anyone using the holes to mount the box either.

I don't think the green screw would bother me. A great idea from the box mfg's is the dimpled location for the green screw. Saves a lot of 'ooops'.
Re: Rewiring a capacitor start & run 4 speed fan
Posted by RODALCO:
Fan Capacitors are usually only a few uF
2.2 uF and rated for 400 V dc or 250 V rms ac.
A cooling fan has low torque. Often the Capacitor remains switched on as the currents are low.
The transformer / inductor is in series, often all the time and causes a bigger phase shift and reduced voltage (...)
Re: Help! New Grounding and Bonding Requirements
Posted by twh:
Saskatchewan Electrical Inspection Department has mandated a method intended to eliminate neutral current from appearing on ground wires.

The problem of neutral current on ground wires is most obvious when a neutral feeding a building is broken and the neutral path becomes the grounded (...)
Re: Recall notice: Kline digital clamp meter
Posted by HotLine1:
Please note that this relates to "KLEIN" clamp meters.

Check via sparkyak's provided link.
Re: Researching electrical contractor pain points
Posted by hopperman:
First off, please excuse me if this is not appropriate, but I hope it's relevant.

I'm a software developer/entrepreneur, and doing some research into helping electrical contractors like yourselves. I came across this forum and am urging some of you to get in touch to talk about, and let me ask (...)
Re: how to select breaker for a specific task
Posted by HotLine1:
Please consult whatever code book, or the mfg. install instructions for the equipment.

This thread is now locked
Re: Working space in front of elevated busduct system
Posted by LarryC:
Quote:
Is it something that is "likely to require examination, adjustment, servicing, or maintenance while energized"?


That was my point. If you have to move or add a disconnect, then move the benches or cabinets at that time. Otherwise the only expected operation while energized would be (...)

 

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Electrical-Photos.com

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061.JPG

by: Dynamotech

Description: Retro light fixture adapter made by a company that uses an 'F' as a logo. Does anyone know what company made these devices? I have so many of them laying around.
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