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Troubleshooting commercial lighting loads

Commercial lighting loads are a major load for large facilities. Troubleshooting them can often be challenging but it's...
5 comments posted 16yrs
posted by saglad
5 comments posted 16yrs posted by saglad

sequence impedance measurements

In many texts the term sequence impedance values are defined as something which do not really exist in practice but are...
4 comments posted 16yrs
posted by nidan.danny
4 comments posted 16yrs posted by nidan.danny

IR Testing of Cables

It has always been common practice by the testing branch of my company that when doing a IR test on a cable, the +ve te...
1 comments posted 16yrs
posted by nidan.danny
1 comments posted 16yrs posted by nidan.danny

Single Wire Earth Return

Greetings, all. Single Wire Earth Return (SWER) AC power distribution is used in the Australian outback. Does anyone kn...
30 comments posted 16yrs
posted by john.wood
30 comments posted 16yrs posted by john.wood

Tooth

Hello everyone, Being an ecological soul I've recently been experimenting with ways of powering an electric wheelchair...
5 comments posted 16yrs
posted by helgathehousekeeper
5 comments posted 16yrs posted by helgathehousekeeper

Heat buildup in wiring

Hello: Just wanted to get the general opinions on the following that was being discussed: The statement: 30 amps will d...
7 comments posted 16yrs
posted by tjmccannATwindstream.net
7 comments posted 16yrs posted by tjmccannATwindstream.net

Looking for AEA Model 6015-1000 VIA BRAVO MRI

Seeking anyone who may have for sale an AEA Technology Model 6015-1000 VIA BRAVO MRI handheld. Send email to: snipped-fo...
0 comments posted 16yrs
posted by garwonko
0 comments posted 16yrs posted by garwonko

Download the 1999 NEC for free

It is in the Title 24 California Code in PDF format (71 meg) at: http://ftp.resource.org/bsc.ca.gov/title24_part03.pdf
27 comments posted 16yrs
posted by anewton611
27 comments posted 16yrs posted by anewton611

transmission line towers

i have a presentation onthis topic the next wek and i really need to now this particular thing.... i need to know how w...
3 comments posted 16yrs
posted by eagleeye.ramadan
3 comments posted 16yrs posted by eagleeye.ramadan

What's this IC? "274 E16 L309"

Hi, all. In a recently acquired pile of vintage junk (well not all junk, some good pieces!) I found a stick of 12 vinta...
2 comments posted 16yrs
posted by junk2007
2 comments posted 16yrs posted by junk2007

Schematics question

Hi, I am reading instrutions on hooking up an Intellibeam IB-250s intruder alarm system.. It sends a beam from transmit...
29 comments posted 16yrs
posted by scredcropshonnospam
29 comments posted 16yrs posted by scredcropshonnospam

Always buy your heavy copper conductors in December

Prices again are on the rise and are expected to go higher than usual because three of the big copper mines are in chil...
0 comments posted 16yrs
posted by anewton611
0 comments posted 16yrs posted by anewton611

Reverse rotation

Hello everyone, due to the closure of a nearby airbase we've come into posession of an intact and working helicopter! I...
4 comments posted 16yrs
posted by helgathehousekeeper
4 comments posted 16yrs posted by helgathehousekeeper