Control Cables Rated 2kV

I was wondering, "what could be the use/application of control cables rated 2kV".

You see, I reside in South Africa and work for a petrochemical company where most (if not all) of our control cables are rated the normal/usual 600V/1000V. NB:- our control circuits use 115Vac or 110Vdc.

Caulk? Or Something Better?

Please help me identify this corner sealing and finish material - look at the overall view, and then upper and lower details at right [more below pictures].

Pictured at left is pan and stitch image of . . . I'll call it, adhesive sealant moulding, used to finish t

Simple Puzzle for Passing the Time

a lady have certain number of birds as of now.

if she sells 75 of them..she will have food lasting for extra 20 days..

if she buys 100 more birds.. she will face shortage of food for 15 days.. i.e 15 days less than present situation.

how many birds she owns?

Electrical Hipot Insulation Breakdown

During on site HV insulation testing by 'HIPOT Injection' on electrical equipments eg. 33kv/66kv switchgears as well as HV 30 kv/ 60 kv cables ,we face many failures on HV testing transformers. The testing transformers in our stock are ---epoxy potted/encapsulated upto 60kv,50 ma and some oil fille

Synchronisation of Wheels of Solar Car

Hi All,

Basically we are developing a model of car to run on battery bank that will be charged by Solar PV panels.

I want to ask how to synchronise the 4 wheels of a battery operated car.

Will it be OK if 4 DC motors are deployed to power /run the 4 wheels, and how to sync

The Craziest Camaro?

Is this the craziest fifth-generation Camaro yet? The LSX 454-ci crate motor is paired with the Turbonetics 91-mm hybrid turbo and good for 1,400-whp and 900-lb-ft of torque. It was also converted to a solid rear axle with ladder bar suspension and back-halved with a custom carbon fiber tub. S

Will a Mosquito Still Buzz Without Wings?

Summer evenings are nice, but they often include the application of insect repellent or lighting of tiki torches to keep mosquitoes and other bugs away. What if you didn't have to worry about mosquitoes? Scientists are working on that right now.

Which One Bites?

Find Us a Fordillac

A Studillac would be fine, too. That's what we're looking for. We are specifically referring here to cars that received an engine transplant from a truly fabled shop, Frick-Tappett Motors, which was located along Sunrise Highway on New York's Long Island. This shop deserves to be as well known

Dark Energy Superfluous?

Taiwanese scientist Wun-Yi Shu made some waves last month with a mathematical model that challenges the dark energy driven model of cosmology. Here's a quote from the Technology Review blog:^1

"Shu's idea is that time an

How to Measure the Power of a Transformer

I am making a tube amplifier and I came across this transformer that has just the right 320-0-320 v (I need about 320 dc) and the 6v for the heater. Now the problem is: how do I know if it is going to give me enough current? The amp is a clone of a Dynaco st35, and it provides 15 watt per channel. T

Reference Designators in Flight Assembly

Does anyone know what document specifies how assemblies are referenced in flight equipment? For instance, in avionics you might have a connector on a box, J1. If the designator for the box was A1, then the connector would be A1/J1. If the box is located in a rack, then the connector might be

Where Does a Cell Tower Get Its Coordinates From?

I know that assisted GPS in cell phones is augmented by the cell tower location data. I was poking around on my Android phone and found the coordinates of each cell tower that it is in communication with. After converting the coords to decimal equivalents, I plotted on Google map and Bing map. I wa

Auto Rust Protection

Has anyone had any experience with the electronic rust protection systems available today for motor vehicles? In basic terms how do they work? Are they worth the 800 dollars it would cost to have one installed?