Switch Safety

Disconnect Safety

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Busway, ITE 1000 amp, with 41 Fuse Safety Disconnects, 13, 10' Sections
Busway, ITE 1000 amp, with 41 Fuse Safety Disconnects, 13, 10' Sections
$9,000.00
Square D HU268AWK Non-Fusible Safety Disconnect Switch, 1200A, 600VAC / VDC, New
Square D HU268AWK Non-Fusible Safety Disconnect Switch, 1200A, 600VAC / VDC, New
$6,850.00
Square D H228AWK Non-Fusible Safety Disconnect Switch,1200A, 240VAC /250VDC, New
Square D H228AWK Non-Fusible Safety Disconnect Switch,1200A, 240VAC /250VDC, New
$6,150.00
DH366FRK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH366FRK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$4,211.18
Square D 400A 600V Transfer Safety Disconnect Switch 82345R Double Throw 3R
Square D 400A 600V Transfer Safety Disconnect Switch 82345R Double Throw 3R
$3,867.81
Square D HU267 Non-Fusible Safety Disconnect Switch, 800A, 600VAC / VDC, New
Square D HU267 Non-Fusible Safety Disconnect Switch, 800A, 600VAC / VDC, New
$3,800.00
Cutler Hammer Eaton 600V 400A Transfer Safety Toggle Disconnect Switch DT365URK
Cutler Hammer Eaton 600V 400A Transfer Safety Toggle Disconnect Switch DT365URK
$3,297.45
New Siemens HNF367 Indoor Safety Disconnect Switch 800A Non-Fusible 600V NEMA 1
New Siemens HNF367 Indoor Safety Disconnect Switch 800A Non-Fusible 600V NEMA 1
$2,995.00
NEW 82345R SQUARE D,400A 600V, Transfer Safety Switch Disconnect Double Throw 3R
NEW 82345R SQUARE D,400A 600V, Transfer Safety Switch Disconnect Double Throw 3R
$2,799.00
DH365NRK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH365NRK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$2,552.08
Square D HU365VW Heavy Duty Non-Fusible Safety Disconnect Switch, 400A,600V, New
Square D HU365VW Heavy Duty Non-Fusible Safety Disconnect Switch, 400A,600V, New
$2,500.00
400 amp Stainless disconnect, new GE heavy duty safety switch, NP1578002B
400 amp Stainless disconnect, new GE heavy duty safety switch, NP1578002B
$2,200.00
SQUARE D H365NDS 400 AMP STAINLESS Safety Switch DISCONNECT 1 year warranty
SQUARE D H365NDS 400 AMP STAINLESS Safety Switch DISCONNECT 1 year warranty
$2,199.99
USED SQUARE D 400AMP HEAVY DUTY SAFETY SWITCH H365NAWK DISCONNECT SWITCH
USED SQUARE D 400AMP HEAVY DUTY SAFETY SWITCH H365NAWK DISCONNECT SWITCH
$2,000.00
DH361UWKX Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH361UWKX Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$1,985.65
UpTo 1 HNF364S 200 AMP 600 VOLT STAINLESS 4X DISCONNECT NONFUSED SAFETY SWITCH
UpTo 1 HNF364S 200 AMP 600 VOLT STAINLESS 4X DISCONNECT NONFUSED SAFETY SWITCH
$1,969.91
Square D Safety / Disconnect Switch, HU-664-RWK, 200A, 600V, 6P, 3R, Excellent
Square D Safety / Disconnect Switch, HU-664-RWK, 200A, 600V, 6P, 3R, Excellent
$1,890.00
UpTo 1 HNF366R 600 AMP 600 VOLT NEMA3R OUTDOOR DISCONNECT NONFUSED SAFETY SWITCH
UpTo 1 HNF366R 600 AMP 600 VOLT NEMA3R OUTDOOR DISCONNECT NONFUSED SAFETY SWITCH
$1,831.50
CROUSE-HINDS WSRDW6352 SAFETY DISCONNECT SWITCH *NEW NO BOX*
CROUSE-HINDS WSRDW6352 SAFETY DISCONNECT SWITCH *NEW NO BOX*
$1,800.00
NEW Square D HU364DF 200 AMP 600V NON FUSIBLE DISCONNECT NEMA 4X SAFETY SWITCH
NEW Square D HU364DF 200 AMP 600V NON FUSIBLE DISCONNECT NEMA 4X SAFETY SWITCH
$1,688.88
DH365FGK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH365FGK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$1,670.67
Square D Transfer Double Throw Safety Disconnect Switch 82355R DT400N 92355 400A
Square D Transfer Double Throw Safety Disconnect Switch 82355R DT400N 92355 400A
$1,664.95
DH365URK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH365URK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$1,649.11
SQUARE D 200A STAINLESS STEEL SAFETY DISCONNECT SWITCH HU364DS **NEW IN BOX**
SQUARE D 200A STAINLESS STEEL SAFETY DISCONNECT SWITCH HU364DS **NEW IN BOX**
$1,445.00
Killark B7NFD21A Non Fused 100A 600V Disconnect Safety Switch HAZARDOUS  LOC.
Killark B7NFD21A Non Fused 100A 600V Disconnect Safety Switch HAZARDOUS LOC.
$1,395.50
CROUSE-HINDS WSRDW6352 SAFETY DISCONNECT SWITCH *USED*
CROUSE-HINDS WSRDW6352 SAFETY DISCONNECT SWITCH *USED*
$1,400.00
O Siemens 60 Amp Safety Switch HNF662J Type 3R 3S 12 13 Disconnect 600 VAC 6 P
O Siemens 60 Amp Safety Switch HNF662J Type 3R 3S 12 13 Disconnect 600 VAC 6 P
$1,360.00
Killark B7NFD26A Non Fused 60A 600V Disconnect Safety Switch HAZARDOUS  LOCATION
Killark B7NFD26A Non Fused 60A 600V Disconnect Safety Switch HAZARDOUS LOCATION
$1,297.50
Square D REHU493IP Solar Safety Disconnect Switch Nonfusible 1000 VDC 100 Amps
Square D REHU493IP Solar Safety Disconnect Switch Nonfusible 1000 VDC 100 Amps
$1,200.00
DH365UGK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH365UGK Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$1,255.34
SQUARE D H326NR DISCONNECT SAFETY SWITCH 400A 240V 3 POLE ***XLNT***
SQUARE D H326NR DISCONNECT SAFETY SWITCH 400A 240V 3 POLE ***XLNT***
$1,250.00
Square D Safety Switch H365N 400 Amp 600 Volt Fusible Disconnect
Square D Safety Switch H365N 400 Amp 600 Volt Fusible Disconnect
$1,100.00
CROUSE-HINDS WSRDW3352 SAFETY DISCONNECT SWITCH *NEW NO BOX*
CROUSE-HINDS WSRDW3352 SAFETY DISCONNECT SWITCH *NEW NO BOX*
$1,200.00
Killark B7NFD13A Non Fused 30A 600V Disconnect Safety Switch HAZARDOUS  LOCATION
Killark B7NFD13A Non Fused 30A 600V Disconnect Safety Switch HAZARDOUS LOCATION
$1,198.00
UpTo 1 HNF363S 100 AMP 600 VOLT STAINLESS 4X DISCONNECT NONFUSED SAFETY SWITCH
UpTo 1 HNF363S 100 AMP 600 VOLT STAINLESS 4X DISCONNECT NONFUSED SAFETY SWITCH
$1,168.64
GE Disconnect Safety Switch TH3225R 400 Amp Model 11 240V 3R General Electric
GE Disconnect Safety Switch TH3225R 400 Amp Model 11 240V 3R General Electric
$975.00
TG3225 GE 400 Amp 2 Pole 240 Volt Safety Disconnect
TG3225 GE 400 Amp 2 Pole 240 Volt Safety Disconnect
$1,143.99
DH363UDKW Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
DH363UDKW Single Throw, Heavy Duty Safety Single-Throw Disconnect Switch
$1,114.79
Square D 400 amp Fused Disconnect H365N single throw fusible safety switch
Square D 400 amp Fused Disconnect H365N single throw fusible safety switch
$1,099.00
Square D A86346 C3 600 Amp 600V Fusible Heavy Duty Safety Switch Disconnect 600A
Square D A86346 C3 600 Amp 600V Fusible Heavy Duty Safety Switch Disconnect 600A
$900.00
LOT OF 20 SQUARE D HU361 30 AMP 3 POLE HEAVY DUTY SAFETY DISCONNECTS SWITCH
LOT OF 20 SQUARE D HU361 30 AMP 3 POLE HEAVY DUTY SAFETY DISCONNECTS SWITCH
$799.99
CROUSE-HINDS WSRDW63542 SAFETY DISCONNECT SWITCH *USED*
CROUSE-HINDS WSRDW63542 SAFETY DISCONNECT SWITCH *USED*
$1,000.00
CROUSE-HINDS WSRDW33542 SAFETY DISCONNECT SWITCH *USED*
CROUSE-HINDS WSRDW33542 SAFETY DISCONNECT SWITCH *USED*
$1,000.00
Eaton Cutler-Hammer DH366FGK 600A Safety Switch Electric Disconnect #3888SR
Eaton Cutler-Hammer DH366FGK 600A Safety Switch Electric Disconnect #3888SR
$1,000.00
CROUSE-HINDS WSRDW3352 SAFETY DISCONNECT SWITCH *USED*
CROUSE-HINDS WSRDW3352 SAFETY DISCONNECT SWITCH *USED*
$1,000.00
SQUARE D   H222N  2-POLE  60 AMP FUSIBLE SAFETY SWITCH DISCONNECT 240 VAC
SQUARE D H222N 2-POLE 60 AMP FUSIBLE SAFETY SWITCH DISCONNECT 240 VAC
$49.99
Eaton N4-4-1400-S1-DC Photovoltaic Safety  Switch​ Disconnect  ~NEW IN BOX
Eaton N4-4-1400-S1-DC Photovoltaic Safety Switch​ Disconnect ~NEW IN BOX
$899.00
UpTo 2 HNF365R 400 AMP 600 VOLT NEMA3R OUTDOOR DISCONNECT NONFUSED SAFETY SWITCH
UpTo 2 HNF365R 400 AMP 600 VOLT NEMA3R OUTDOOR DISCONNECT NONFUSED SAFETY SWITCH
$923.15
Westinghouse Safety Switch JHFN365 400 Amp 600 Volt Type 12 Fusible Disconnect
Westinghouse Safety Switch JHFN365 400 Amp 600 Volt Type 12 Fusible Disconnect
$795.00
Eaton Cutler-Hammer DH225FDK Heavy Duty Fusible Safety Switch 400 Amp Disconnect
Eaton Cutler-Hammer DH225FDK Heavy Duty Fusible Safety Switch 400 Amp Disconnect
$795.00



1911 Sear Disconnect: Safety or No?





Dielectric Voltage Stand up to Check of Electrical Products

Dielectric voltage withstand check is demanded in nearly every security standard of
electrical safety tester
products, for dielectric voltage stand up to check is really a vital component of security standard of electrical items. Dielectric voltage stand up to test will be the so-called higher voltage check which happens to be a test to determine whether or not the insulating materials and spatial distances adhere to the standard by giving a voltage which happens to be higher compared to the rated voltage to the equipments for certain time.

Check Method

one. Check if the main power change in the hipot tester is “OFF”.

2. Except for the special design in the equipment, all the other conductive metal parts really should be well grounded.

3. Connect all the wires or terminals at the energy input end in the measured equipment.

4. Close all the energy switches and relays, etc.

5. Set the tested voltage of the hipot tester to zero.

6. Connect the higher voltage transmission line (generally red) to the energy input end in the measured equipment.

7. Connect the loop grounding line (generally black) towards the accessible conductive metal part in the measured equipment.

8. Close the main energy change of the hipot tester and raise the secondary voltage of the hipot tester to the desired value slowly. Usually, the raise speed of voltage must be kept below 500V/sec.

9. Maintain this testing voltage within the time specified.

10. Lower the testing voltage slowly.

11. Disconnect the main energy switch of the hipot tester. First disconnect the high voltage transmission line and then the loop grounding line.

The following cases show that the measured equipment fails the check:

The testing voltage cannot be raised towards the desired voltage value or it lowers instead.

There may be warning signal on the hipot tester.

It needs to be noticed that we ought to be extremely careful because there may be higher voltage which happens to be danger for human body existing in the dielectric voltage stand up to test.

Cases that can make the equipment free from factory dielectric voltage stand up to check.

The energy input of the items will be the ELV or SELV in the secondary output of other items, such as power supply and transformer.

The merchandise will use alternative power supply as component, and this energy supply is identified by CSA, of complete case and input and output connector. For it's identified by CSA, this energy supply has passed the dielectric voltage withstand check. Therefore, we can consider relieving it from dielectric voltage withstand check. Nonetheless, we have to check whether the energy supply is damaged before it is installed.

When the signal transformer is applied within the circuit of same voltage, and it's not the safety device, we can consider relieving the component from the start towards the iron core from dielectric voltage withstand test.

Matters that must be paid specially attention to:

It must be specified that only trained and authorized personnel can come into the check zone and operate the equipment.

Fixed eye-catching warning signals ought to be set around the test zone to keep other people from the danger area.

During the check, all the personnel, including the operators, must keep distance with the
hipot tester
and measured equipment.

When the tester is started, the output line should not be touched by anyone.




Protect Yourself Against Malware

The same Internet connection that lets you reach out and touch millions of Web servers, e-mail addresses, and other digital entities across the globe also endangers your PC and the information it contains about you.

Every day, virus, spyware, and adware creators come up with new, ingenious ways to gain access to your PC. These steps will help keep you safe:

Think before you click:
Attached files that end with .exe, .com, .bat, and .scr, as well as scriptable document files, including .doc and .xls, can infect your PC with a single click. Many e-mail programs block access to executable-file attachments.

Use a spam filter:
Though some malware makes its way onto your computer via drive-by browser hijacking, e-mail is its other main source. Install a junk-mail filter to reduce your chances of activating malicious scripts embedded in messages.

Update your antivirus software:
Allowing your antivirus software to continue running after its subscription has expired is actually worse than using no antivirus software at all: Not only do you lack the crucial virus signature database updates, but you expose your system to malware that targets known flaws in antivirus software.

Tips on avoiding Viruses and Worms:


    Install antivirus software, update regularly, and use it regularly.

    Never open unsolicited e-mail attachments with the file extensions VBS, SHS, or PIF.

    Disconnect your network or modem cable when you are not using your computer-or just power it down.

    Avoid attachments with sexual file names.

Antivirus software is a software installed on your computer that protects you from viruses. Antivirus software programs can contain between 40,000 - 100,000 "virus definitions" that are updated on a daily or as needed basis.

My personal favorite free antivirus app is Grisoft AVG Anti-Virus Free. In the paid programs, i do recommend Kaspersky anti virus. Its great in work.

Get a second opinion:
Install and use only one antivirus program at a time on your computer because multiple real-time scanners will conflict with one another. If you have doubts about your programs effectiveness, however, use a free online virus scanner, such as Panda Softwares ActiveScan) or Trend Micros HouseCall.

Download with discretion:
Any program you download and run on your system could potentially result in a lethal infection or zombification. Download software only from reputable online sources that first scan all of their download files for any malware.

Use a bidirectional firewall:
Windows XP and Vista each come with a firewall that blocks incoming attacks; it is enabled by default in Windows XP Service Pack 2 and later. For the best protection, you will also want to block unwanted outgoing connections made by malware on your PC that attempts to either connect to a remote server or send out spam.

Vistas firewall can be set up to do that, but configuring it is not a job for the average Windows user. Instead, get one of several free bidirectional firewall programs, such as Zone Labs ZoneAlarm Free, or Agnitums Outpost Firewall Free.

Most commercial security software suites also include a firewall program.

Use antispyware:
Anyone who uses a computer is susceptible to spyware infection. In fact, nine out of 10 Internet-connected PCs are infected with spyware. Spyware threats can be any application that may track your online or offline PC activity. If you use the Internet, its very likely some form of spyware threats are already at work on your PC.

Detecting spyware is tough and spyware removal is even more difficult. Even if you think you have successfully removed an unwanted program manually, a remaining tickler file can trigger a complete reinstallation the next time you start your PC. And as a survival tactic, malware programs often leave similar traces elsewhere on your system so the game of cat and mouse never ends.

Spyware, adware, and some browser cookies slow down your system, cause crashes, and track your online activity. Antispyware utilities work much like antivirus software, detecting and removing the unwanted software from your PC. We picked Webroot Spy Sweeper 5 and NoAdware as our favorite in our "Spyware Fighters" antispyware roundup.

Upgrade from XP:
Service Pack 2 makes Windows XP much safer, but the operating system still has security holes, and it remains a top target for malware authors. Windows Vistas new user access controls ask your permission before launching new programs, which reduces the chances that malware can leap from the Web to your PC automatically, though some Vista bugs have already been found.

Both the Mac OS and Linux offer even stronger safeguards against program launching, and they are rarely the targets of malware attacks, which makes it very unlikely that Web-hosted attacks--or any other kind--will afflict computers running those operating systems.Cher K Markov articles on various subjects and has a treasure chest of information and resources onAntiSpywareathttp://online-downloads.blogspot.com

Article Source: http://www.simplysearch4it.com/article/52126.html

Disconnect Safety Search Terms:

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