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Class 1 wiring?

Anyone know the definition of 'Class 1 wiring' (in reference to a UL approved installation of industrial servodrives)?
0 comments posted 19yrs
posted by NOcupra.sSPAM
0 comments posted 19yrs posted by NOcupra.sSPAM

208 vs 230?

I almost always work with pure 115V AC equipment, but now with the new Cisco 6500 equipment I am getting, I am little c...
16 comments posted 19yrs
posted by john
16 comments posted 19yrs posted by john

Signal integrity (rise time and BW)

BW = .35/tr Why doesn't the voltage step size of the signal influence the BW calculation? A 0-10V signal with a rise ti...
6 comments posted 19yrs
posted by kpl
6 comments posted 19yrs posted by kpl

Help and Advice Needed

Hi there, I'm looking to replace the power breaker for my static caravan but can't find one anywhere. The one I have is...
5 comments posted 19yrs
posted by frankyg
5 comments posted 19yrs posted by frankyg

OT - Dyson advert ruled misleading

This'll no doubt cheer those of you who *don't* think that Dysons are the best thing since sliced bread. http://www.asa...
11 comments posted 19yrs
posted by timdownie2003
11 comments posted 19yrs posted by timdownie2003

C or D type MCB?

Dear all, I've a small machine running in a single phase 240V. Its FLA is 17.88A. The Mfr has recommended a 32A MCB wit...
1 comments posted 19yrs
posted by shayglenn
1 comments posted 19yrs posted by shayglenn

Swimming pool electrical very minor shock

Can anyone help me with this problem? The light bulb burned out in my swimming pool and I discovered this problem when...
4 comments posted 19yrs
posted by chrisring2
4 comments posted 19yrs posted by chrisring2

Voltage converters with no ground prong?

Hi All, I am shopping around for a voltage converter for my mom . She is travelling from California to Europe and Isrea...
3 comments posted 19yrs
posted by michalchik
3 comments posted 19yrs posted by michalchik

Encoder Wiring

I have a datametrics "trump ross" encoder for a nema 34 stepper motor. I have not been able to find any wiring diagrams...
0 comments posted 19yrs
posted by gtslabs
0 comments posted 19yrs posted by gtslabs

Widget for joining 3-core mains flex

I am in the UK. I want to ask for info about joining 3-core mains flex on an appliance that may have to carry up to 3,0...
44 comments posted 19yrs
posted by no
44 comments posted 19yrs posted by no

induction type over current relay

hello, why the surface of rotating alluminium disk of induction type over current relay is rough or dotted or perforated...
0 comments posted 19yrs
posted by hitesh.30878
0 comments posted 19yrs posted by hitesh.30878

Protection Relay Data Analysis

Hi, I work at a small Biomass conversion power station generating approx 50Mw of electricity located in northern Austra...
1 comments posted 19yrs
posted by amcd2000
1 comments posted 19yrs posted by amcd2000

RMU Ring Main Units Method Description

Hello, who knows whats the exact description of RMU method in switchgears and panels?
0 comments posted 19yrs
posted by eoots2000
0 comments posted 19yrs posted by eoots2000

What voltage in Florda, USA ?

Hi, Im going on holiday in a couple of weeks to Orlando, Florida. Can anybody tell me what the domestic voltage supply i...
49 comments posted 19yrs
posted by lloyd02
49 comments posted 19yrs posted by lloyd02