|
Leicester Square Gallery
... joseph d, qaab, doc telecomutting, >:[[, hand gun laser ... review, nmsnr, fogo de chow dallas, 35850, beat brother up ... ruby teusdays restaurant, 8-DDD, qsl card printer, :O,
Read full post here. (c)
{
click & win - our free monthly prize draw
... mfj radio kits mfm bimen mfc 215 printer brother download ... engraving burke meykos mga maikling tula mfc laser printer ... Mft online graduate program mf 6550 toner mezzanine ...
Read full post here. (c)
}
Can PAT Testing Damage Your PC?
There is a great deal of debate at the moment about whether or not computers should be PAT tested. For those unfamiliar, a Portable Appliance Test (abbreviated to PAT Test but that's another article) is a process by which an electrical appliance is checked to see if it is safe. Most appliances in use in workplaces today will have a green sticker on them to indicate that they have been tested. In the old days of PAT testing, engineers used to carry out a test called a 'flash test' whereby 3000V was applied across the insulation to detect any breakdown. At the time, the only items which were PAT tested would be power tools and machinery - then people started to test computers (with disastrous consequences) and all hell broke loose. Very quickly, the advice given was not to test computers! Of course the test equipment manufacturers quickly modified their testers to carry out 'soft tests' for computers, and the computer manufacturers redesigned their power supplies so they would not be damaged by the test. Unfortunately, even many years later you still meet people who refuse to have their machines tested for fear of damage. This does, however, mean that people may be using computers unaware of a dangerous fault..... Nowadays, the only two tests which are carried out on PC's are the Earth Bond Test and Insulation Test. The Insulation Test might cause damage to the power supply, UNLESS it is manufactured to BS EN 67950. ALL computers (and monitors and fax machines etc) have to comply with this standard, and have done since the early 90's. So the 'correct' procedure is to carry out earth and insulation tests on all modern computers, but to leave out the insulation test if the device appears to be more than about 10 years old. (not too many computers - but occasional monitors and printers are quite old.) My company did the PAT testing for a large organisation, and it turned out that they NEVER shut down their PC's. They just went home at night leaving them on, and after a few minutes of screen saver the computers went into 'sleep' mode. In a few cases we found PCs where the CMOS batteries (which retain the system settings when the computers are switched off) were completely dead, but nobody knew about it because the computers had never been turned off. Of course, we had to turn them off (and unplug them from the mains) to test them, so a couple of machines refused to start properly after the test. They were quickly sorted out though. However, a properly conducted PAT test will never cause damage to a PC. I will concede that there are a few PAT testing engineers out there who don't possess all of the requisite knowledge, and unfortunately there is a lot of subcontracting going on which means that the testing is done by the lowest bidder! It is possible for damage to occur if the wrong tests are carried out. Anybody in any doubt about having their computers tested should speak to a professional PAT testing company. Tim James http://www.pat-testing-expert.com

NAVIGATION
Do You Recognize the Four Early Warning Signs of Hard Disk Drive Failure?
Intel D945GCLF2 Dual Core Mini-ITX Carputer Motherboard
Computer Hardware Needed to Mobilize Net Centric Teams
The Best Wireless Router For Your Home and Office Network
Xerox Phaser 6110 - The Home Office Printer
Photo Printers
Is Blu-Ray Just More Planned Obsolescence
Computer Rentals - Your Questions Answered
New High Tech Retail Systems For Retail Businesses
HP TouchSmart Wall Mounting - VESA Mount Adapter For HP Dx9000 and IQ500 Series TouchSmart PC
Where Are Fiber Optic Patch Panels Used?
Wireless Network Planning - Distance, Speed and Adapters
Think Before You Ink - Printer Ink Cartridge Facts
3 Most Common Problems With Ethernet Printers
Notebook - A Portable Computer For Easy Access
Why You Should Use Branded Printer Toner Cartridges Only
Photos Instantly at Home - Photo Printer
Renting Computers Can Help Cut Costs in a Recession
Brother MFC-7840W - All in One Printer Review
Does Yogurt Whiten Skin?
The Future Of Inkjet Cartridges-Part II
Phaser 6360 Toner For Less By Using Compatible Toner
Vintage Microphones
What You Should Know About Solid Ink Printers
Point of Sale Hardware - Your Own Branded Point of Sale Terminal
How Can You Tell If Your Hard Drive Has Crashed?
Acer-Aspire One (Linux)
Ink Jet Or Laser Printer - Which is More Cost Effective For Your Needs?
Small Business Owners - Save Money, Print Your Own Checks
Computer Secondary Market Specialists - The Time is Right For Used Computers
Photos Instantly at Home - Photo Printer
Basics Of A Pen Drive
AMD Athlon Processors Should Be Taken More Seriously
Organic Skin Care 101
If You Are Building White Boxes For Your Business You May Be an IDIOT!
The Basics of MICR Toner Printing
The Best Ways to Get Rid of Spots
Can PAT Testing Damage Your PC?
How to Restrict USB Flash Drive to Virtual Machine
Overlays For Enhanced Keyboards
How To Attach An External Monitor To Your Laptop Computer
An Affordable Compact Desktop - The Shuttle KPC K-4500
Laser Printer Toners
Color Printers - Are They Worth the Money?
External CD Burners
Patient Satisfaction With a Tubal Ligation Reversal Doctor
Finding Cheap Ink Jet Cartridges
CNC Kits - Build a CNC Machine
Cartridge Refill Kits - Helpful Hints
Learn About The Three Basic Types Of Computer Mouse
A Few Simple Tips of Treating a Cold Sore Effectively
Here's How to Save a Bunch of Money on Toner Cartridges
Optimized Data Recording With Sony AIT-5 Tape Technology
Internal Solid State Disk - SSD
Perpendicular Hard Disk Drives
Xerox Solid Ink Sticks - An Alternative to Traditional Printer Cartridges
New Printer on the Block - Lexmark T-650dn
Computer Repair Tips - Seven Early Warning Signs of a Hard Drive Crash
SPI Bus: Theory and Implementation
How Hard Discs Work
HP Compaq Presario C783TU
Things to Consider When Buying a Watt Meter
Absolute Beginners' Guide to Fiber Optic Bit Error Ratio (BER) Measurement
How Did People Print in the Old Days? A Timeline of Printing in History
Latest Technology in Computer Hardware
Can PAT Testing Damage Your PC?
Maximizing the Use of Lexmark Ink Cartridges For Printing
Can PAT Testing Damage Your PC?
Intel D945GCLF2 Dual Core Mini-ITX Carputer Motherboard
Just How Does an Inkjet Printer Work?
How to Recycle Your Ink and Toner Cartridges
Laminating ID Cards
All About Laptop Memory
Buying a Computer Processor - Pentium D Vs Core 2 Duo
New Logitech VX Revolution Mouse
Things to Consider When Buying a Watt Meter
A Few Reasons Why it is Helpful to Boost a Macbook's Memory
Remanufactured Inkjet Toner Cartridges & Inkjet Ink Cartridges - Why Use Them?
|