HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
<<  <  Page 2/2
warren@fourward.com
User Rank
Platinum
Re: Overlooking the fundamentals
warren@fourward.com   7/31/2012 9:45:22 AM
NO RATINGS
In many ways, fuse ratings is an art form.  Inrush current, load current, spikes, motors starting up, and numerous other factors come into play.  You have to consider the steady state of the device, but what if all peripheral functions operate at the same time?  So rating a fuse can be tricky.  I assume the cooler design engineer was looking at the steady state current and not considering inrush from start-up.  But then again, running a fuse so close to steady state was foolish, unless he was forced to use wiring or other devices that could not handle much more current.  Then. that was just plain stupid, but cost effective.  Fused flex on start-up or an increase in current, so they will wear out if they aren't designed properly.  But, if there was no warranty, then who cares?

I wish I could find a Ferrari that someone threw away because of blown fuses.  I am sure I could find the fix...

notarboca
User Rank
Gold
Re: Overlooking the fundamentals
notarboca   7/31/2012 8:39:57 AM
NO RATINGS
Yes, yes, a little practical engineering knowledge goes a long way!  What a sweet deal--2 operational wine fridges for next to naught cost.

Beth Stackpole
User Rank
Blogger
Overlooking the fundamentals
Beth Stackpole   7/30/2012 8:01:01 AM
NO RATINGS
Nice catch--both for figuring out the fuse issue and for scoring a working wine fridge. Seems like a pretty basic case of specing the wrong part and overlooking fundamental design principles. You have to wonder if it's a case of oversight or a design choice caused by pressure to reduce costs. Either way, a pretty overavoidable design flaw.

<<  <  Page 2/2


Partner Zone
Latest Analysis
Here's a variety of views into the complex production processes at Santa's factory. Happy Holidays!
The Beam Store from Suitable Technologies is managed by remote workers from places as diverse as New York and Sydney, Australia. Employees attend to store visitors through Beam Smart Presence Systems (SPSs) from the company. The systems combine mobility and video conferencing and allow people to communicate directly from a remote location via a screen as well as move around as if they are actually in the room.
Thanks to 3D printing, some custom-made prosthetic limbs, and a Lego set, one lucky dog and a tortoise has learned new tricks.
An MIT research team has invented what they see as a solution to the need for biodegradable 3D-printable materials made from something besides petroleum-based sources: a water-based robotic additive extrusion method that makes objects from biodegradable hydrogel composites.
With Radio Shack on the ropes, let's take a memory trip through the highlights of Radio Shack products.
More:Blogs|News
Design News Webinar Series
12/11/2014 8:00 a.m. California / 11:00 a.m. New York
12/10/2014 8:00 a.m. California / 11:00 a.m. New York
11/19/2014 11:00 a.m. California / 2:00 p.m. New York
11/6/2014 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  67


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service