|
|
|
Third Edition
UL 1449 SPD TYPE EXPANSION
Followed by: Seasonal Sizzle -
"Earth Day - 40th Anniversary" | April 2010 |
|
CONGRATULATIONS Joel Kucharski
Encon Group, Inc., Kensington, MD -
winner of the $25.00 PetSmart gift card.
Mr. Kucharski was the first to correctly complete the following sentence:
'The Limited Current Abnormal Overvoltage Test, the Intermediate Current Test
and Short Circuit Current Tests in Third Edition are done using an abnormal overvoltage and available fault current rather than a specific current value
impressed through the device.'
Answer can be found in the SSI Third Edition #10 Newsletter -
"Difference in Current Tests"
released 1-27-2010
( Link to newsletter archive) | | |
Spring forward...
Be the first to correctly answer the
3rd Edition challenge question below to
win a $25.00 Bed Bath & BEYOND gift card.
|
|
Special Edition Featured Article:
Standard for Surge Protective Devices
'UL 1449 SPD Type Expansion" |
Just when you thought you had it all figured out, here come some additional changes to UL 1449-Third Edition.
Effective April 19, 2010, Underwriters Laboratories has published a new release to the standard which includes an expansion of the SPD Types. This was done primarily to address and distinguish between requirements for discrete SPD components (e.g. MOVs, SADs, GDTs...) and component assemblies. For your convenience, the full list and Type descriptions are provided below:
1.1 These requirements cover Surge Protective Devices (SPDs) designed for repeated limiting of transient voltage surges as specified in the standard on 50 or 60 Hz power circuits not exceeding 1000 V and designated as follows:
Type 1- Permanently connected SPDs intended for installation between the secondary of the service transformer and the line side of the service equipment overcurrent device, as well as the load side, including watt-hour meter socket enclosures and intended to be installed without an external overcurrent protective device.
Type 2- Permanently connected SPDs intended for installation on the load side of the service equipment overcurrent device; including SPDs located at the branch panel.
Type 3 - Point of utilization SPDs, installed at a minimum conductor length of 10 meters (30 feet) from the electrical service panel to the point of utilization, for example cord connected, direct plug-in, receptacle type and SPDs installed at the utilization equipment being protected. See marking in 64.2. The distance (10 meters) is exclusive of conductors provided with or used
to attach SPDs.
Type 4 Component Assemblies- Component assembly consisting of one or more Type 5 components together with a disconnect (integral or external) or a means of complying with the limited current tests in 39.4.
Type 1, 2, 3 Component Assemblies- Consists of a Type 4 component assembly with internal or external short circuit protection.
Type 5 - Discrete component surge suppressors, such as MOVs that may be mounted on a PWB, connected by its leads or provided within an enclosure with mounting means and wiring terminations. 1.1 revised April 19, 2010
So how does this affect product listings?
Essentially Type 1 and Type 2 SPDs remain permanently connected stand-alone LISTED SPDs (panel units).
Type 3 SPDs remain LISTED cord connected or direct plug in units.
Type 1,2,3 component assemblies as well as Type 4 component assemblies and Type 5 devices, fall under the Recognized Component program and have conditions of acceptability. These are not stand alone products, if you will, in that they do not include the final enclosure.
One thought worth noting, Type 1, 2, or 3 component assemblies will be marked as Type 1, 2, or 3; however, they will not bear the UL Listed mark, but rather the UL Recognized Component mark. |
|
COMING SOON...
...Another informative Third Edition discussion!
Be the first to answer the following
question correctly and win a
$25.00 Bed Bath & BEYOND gift card:
"When comparing test results in Third Edition, there can be as much as a ___ volt difference in measuring limiting voltages between products that have the same Voltage Protection Rating (VPR)."
E-mail your answer to
your contact information today. Good luck!
(Contest excludes employees/distributors/resellers of SSI)
|
Click on link to inquire about anything related to Third Edition. Submittals have a chance to be featured in a future newsletter!
|
|
Upcoming Observances:
-
4/23 Talk Like Shakespeare Day (link)
-
4/24 Sense of Smell Day (link)
-
4/25 Red Hat Society Day (link)
-
4/30 National Honesty Day (link)
-
5/1 Kentucky Derby (link), National Scrapbooking Day (link)
-
5/2 World Laughter Day (link)
-
-
5/4 National Teacher Day (link), Respect for Chickens Day (link)
-
5/6 No Diet Day (link), Nurses Day (link)
-
5/8 No Socks Day (link), World Red Cross Day (link)
-
-
5/11 Eat What You Want Day (link)
-
5/12 National Nutty Fudge Day (link)
-
5/13 Frog Jumping Day (link)
-
5/15 Straw Hat Day (link)
-
5/18 Visit Your Relatives Day (link)
|
|
Seasonal Sizzle: |
|
|
40th Anniversary of Earth Day - 4/22/2010 |
 How The First Earth Day Came About
By: Senator Gaylord Nelson, Founder of Earth Day
What was the purpose of Earth Day? How did it
start? These are the questions I am most frequently
asked.
Actually, the idea for Earth Day evolved over a period of seven years starting in 1962. For several years, it had been troubling me that the state of our environment was simply a non-issue in the politics of the country. Finally, in November 1962, an idea occurred to me that was, I thought, a virtual cinch to put the environment into the political "limelight" once and for all. The idea was to persuade President Kennedy to give visibility to this issue by going on a national conservation tour. I flew to Washington to discuss the proposal with Attorney General Robert Kennedy, who liked the idea. So did the President. The President began his five-day, eleven-state conservation tour in September 1963. For many reasons the tour did not succeed in putting the issue onto the national political agenda. However, it was the germ of the idea that ultimately flowered into Earth Day.
I continued to speak on environmental issues to a variety of audiences in some twenty-five states. All across the country, evidence of environmental degradation was appearing everywhere, and everyone noticed except the political establishment. The environmental issue simply was not to be found on the nation's political agenda. The people were concerned, but the politicians were not.
After President Kennedy's tour, I still hoped for some idea that would thrust the environment into the political mainstream. Six years would pass before the idea that became Earth Day occurred to me while on a conservation speaking tour out West in the summer of 1969. At the time, anti-Vietnam War demonstrations, called "teach-ins," had spread to college campuses all across the nation. Suddenly, the idea occurred to me - why not organize a huge grassroots protest over what was happening to our environment?
I was satisfied that if we could tap into the environmental concerns of the general public and infuse the student anti-war energy into the environmental cause, we could generate a demonstration that would force this issue onto the political agenda. It was a big gamble, but worth a try. (Click link to continue)
|
|
|
|
|
|
| Link to Newsletter Archive |
Surge Suppression Incorporated®
a premium product at a fair price.
ISO 9001:2008 Certified Manufacturing Facility
Click on this link to view a three-minute movie about SSI.
Looking for a distributor or reseller in your area?
For more information or assistance, please contact your local Surge Suppression Incorporated® representative
or contact us at
888-987-8877
|
|
|
|
|
