Sanders for Congress - Keep Hope Alive!
Jim Trippon, New Candidate in Hunters Creek Village Election Race, Denounces Alleged Fiscal Mismanagement
Jim Trippon CPA, the newest candidate in the Hunters Creek Village, Texas, election opened his campaign with a denunciation of alleged waste and mismanagement of public works projects by the previous city council.
BidClerk.com Reports Construction Projects Up For Bid in the Indianapolis, IN Area
BidClerk's daily update of Indiana construction projects coming up for bid and starting construction within the next 90 days.
NiteLites of Indianapolis Planning to Exhibit 'Green' Lighting Fixtures at 49th Indiana Flower and Patio Show
NiteLites of Indianapolis, the Landscape Lighting Professionals uses environmentally friendly low voltage lighting They will display low voltage lighting fixtures and accessories at the 49th Indiana Flower and Patio Show in Indianapolis, March 10th through 18th at the Indiana State Fairgrounds.
Democrats in Congress ... What Does that Mean for My Wallet?
Long-time financial advisor predicts changes in monetary policy and other new legislation.
Stock Research And Market To Be Affected Big Time Post November Election
Stock research normally tells us that pick the right stocks and it really doesn?t matter what the market does. When you survey history however, this seemingly true statement turns out not to be the case. You can have all the stock research in the world, but if the market goes against you, it doesn?t matter.
Manchester, UK (PRWeb) January 31, 2007 -- Nearly every electrical device has at least one switch. We take their safe, efficient and reliable operation for granted, but selecting the correct switches can be confusing for the designer and engineer. Incorrect specification can have serious consequences for product reliability and reputation. Toni Hankins, MD of Rowe Hankins Components, the UK distributors of Marquardt switches offers the following guide.
Safety first - select a reputable manufacturer with proven ability to design, deliver and supply product that meets relevant European, North American and national test and accreditation standards. Select a switch with the correct electrical rating and characteristics, including factors such as correct resistive and motor loads and tolerance of transient in-rush current on start up.
Environment - what kind of environment will the switch be in? Will it be exposed to exceptional temperature, humidity/moisture, dust or other hazards? Switches can be specified with heat resistant and even flame retardant cases and with dust and splash protection or to meet specific IP criteria.
Style - for appliance, automotive, medical devices and many other applications, think carefully about shape, size, colour, texture, switch action and markings. These are more than just aesthetic considerations and can affect the usability, appearance, and user's perception of the quality and value of the device.
Assured performance - any switch that has more than 2000 annual operation cycles must be tested for 50,000 cycles, look for the 5E4 marking. For reliability it may be even more important to have gold plated contacts on switches that are infrequently used.
Status - decide if the application requires a positive indication of on/off status and whether this is best achieved by colour reveal/conceal (with a slider switch, for example) or by internal illumination or LED.
Mode of operation - consider carefully what mode of operation meets the need best - rocker, toggle, push button, slide, rotary, open or closed snap action or footswitch. Do you need single, double or multi-pole switches?
Production - correct specification can be an aid to productivity. Consider carefully the benefits of standardisation of switch types, the ease of fitting the correct choice of terminals to suit the production method.
If all this sounds confusing then seek advice from the distributor. "It is in our interest to supply a switch that is safe, effective and reliable and meets the needs of the application. Failing to address needs properly can lead to premature failure, higher service costs, outages for the user and ultimately loss of goodwill and reputation." advised Toni Hankins.
A free comprehensive technical catalogue for Marquardt switches is available from the company. They are also happy to provide designers and electrical engineers with detailed advice on selecting the right switches for their applications, on 0161 765 3000.
More information:
Tony Hankins, Rowe Hankins Components Ltd
Power House, Parker Street, Bury, Lancashire, BL9 0RJ
Tel. +44 (0)161 765 3000 Fax. +44 (0)161 763 1421
Web: www.rowehankins.com
High/low resolution images are on the web at www.ainsmag.co.uk/rh109/4269rh1a.htm
# # #
National Agricultural Research
Identity Management Topics
Socialist Issues