Silicone Case
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 Garmin Protective Black Silicone GPS Case for EDGE 800 010 10644 03 $12.50 Time Remaining: 7d 3h 56m Buy It Now for only: $12.50 |
 COOL HOLDER Horn Stand Holder Amplifier Silicon Case Speaker for iPhone 4 $7.99 Time Remaining: 2d 14h 1m |
 TTSN520 Silicone Skin Case for TomTom GO 530 730 930 $5.99 Time Remaining: 28d 16h 41m Buy It Now for only: $5.99 |
 NEW GARMIN OEM SILICONE CASE for EDGE 800 GPS 010 10644 03 $12.95 Time Remaining: 11d 3h 41m Buy It Now for only: $12.95 |
 New Garmin 010 10644 03 Silicone Case for Edge 800 GPS $13.99 Time Remaining: 13d 4h 12m Buy It Now for only: $13.99 |
 Garmin 43 Inch Silicone Skin Case Black $1.93 Time Remaining: 17d 10h 7m Buy It Now for only: $1.93 |
 NEW GARMIN OEM SILICONE CASE for APPROACH G3 DAKOTA 10 20 010 11344 10 $11.85 Time Remaining: 18d 7h 27m Buy It Now for only: $11.85 |
 Garmin Edge 800 Custom Silicone Case P N 010 10644 03 $13.95 Time Remaining: 22d 3h 43m Buy It Now for only: $13.95 |
 Garmin 43 Inch Silicone Skin Case Black $5.55 Time Remaining: 19d 17h 22m Buy It Now for only: $5.55 |
 Tomtom One XL V2 Version 2 Silicone Case Protection $3.90 Time Remaining: 17d 20h 52m Buy It Now for only: $3.90 |
 NEW GARMIN SILICONE CASE for EDGE 800 GPS 010 10644 03 $12.95 Time Remaining: 27d 1h 52m Buy It Now for only: $12.95 |
 Garmin 35 Inch Silicone Skin Case Green $1.91 Time Remaining: 17d 10h 7m Buy It Now for only: $1.91 |
 TTSN130 Silicone Skin Case for TomTom One 125 130 140 $5.99 Time Remaining: 28d 16h 37m Buy It Now for only: $5.99 |
 Garmin CASE EDGE 800 SILICONE CASE GPS Accessories $6.99 Time Remaining: 28d 21h 22m Buy It Now for only: $6.99 |
 3D Hello Kitty iPhone 4 4S BLUE Silicone Back Case $10.98 Time Remaining: 26d 6h 40m Buy It Now for only: $10.98 |
 Clear 43 Silicone Skin Case bag for Garmin Nuvi GPS $2.99 Time Remaining: 9d 10h 20m Buy It Now for only: $2.99 |
 New VW Silicone Remote Key Case 3 Buttons for POLO JETTA PASSAT Black $2.99 Time Remaining: 23d 19h 9m Buy It Now for only: $2.99 |
 35 Silicone SKIN Case COVER for Garmin NUVI 35 inch $3.30 Time Remaining: 15d 10h 45m Buy It Now for only: $3.30 |
 Garmin Silicone Case Dakota Series Part 010 11344 10 $9.99 Time Remaining: 28d 4h 5m Buy It Now for only: $9.99 |
 iPod Touch Sesame Street Elmo Silicone Case NEW $15.95 Time Remaining: 9d 1h 23m Buy It Now for only: $15.95 |
 Garmin 43 Inch Silicone Skin Case Blue $7.21 Time Remaining: 19d 17h 22m Buy It Now for only: $7.21 |
 Garmin 43 Inch Silicone Skin Case Clear $7.21 Time Remaining: 19d 17h 22m Buy It Now for only: $7.21 |
 Garmin 43 Inch Silicone Skin Case Green $7.21 Time Remaining: 19d 17h 23m Buy It Now for only: $7.21 |
 35 Silicone SKIN Case for Garmin 200250260205265T $2.99 Time Remaining: 9d 10h 21m Buy It Now for only: $2.99 |
 Silicone Protection Skin Case for Garmin Nuvi 255 GPS Case Cover Skin Accessory $3.30 Time Remaining: 9d 10h 40m Buy It Now for only: $3.30 |
 Clear Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $2.99 Time Remaining: 12d 19h 37m Buy It Now for only: $2.99 |
 Soft Silicone case TomTom One V4 IQ 125 130 140 S 130S $6.99 Time Remaining: 18d 13h 49m Buy It Now for only: $6.99 |
 GENUINE GARMIN SILICONE CASE FOR EDGE 800 010 10644 03 $14.87 Time Remaining: 21d 1h 8m Buy It Now for only: $14.87 |
 Clear Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $3.30 Time Remaining: 4d 23h Buy It Now for only: $3.30 |
 iPod Touch Sesame Street Cookie Monster Silicone Case NEW $15.95 Time Remaining: 9d 1h 24m Buy It Now for only: $15.95 |
 Matt Black Silicone Case for Tomtom Go 510 710 910 $3.90 Time Remaining: 18d 7h 24m Buy It Now for only: $3.90 |
 3D Hello Kitty iPhone 4 4S YELLOW Silicone Back Case $10.98 Time Remaining: 26d 6h 46m Buy It Now for only: $10.98 |
 GARMIN DAKOTA 10 20 SILICONE CASE NEW 2010 $13.30 Time Remaining: 10d 22h 35m Buy It Now for only: $13.30 |
 43 inch Blue Silicone Skin Case for Garmin Nuvi GPS $2.99 Time Remaining: 9d 10h 20m Buy It Now for only: $2.99 |
 Garmin 43 Inch Silicone Skin Case Clear $3.51 Time Remaining: 17d 6h 10m Buy It Now for only: $3.51 |
 Garmin 43 Inch Silicone Skin Case Blue $3.51 Time Remaining: 17d 6h 8m Buy It Now for only: $3.51 |
 3D Hello Kitty iPhone 4 4S PINK Silicone Back Case $9.98 Time Remaining: 26d 6h 36m Buy It Now for only: $9.98 |
 Clear Silicone Case for Tomtom Go 510 710 910 $3.90 Time Remaining: 18d 7h 21m Buy It Now for only: $3.90 |
 Clear 43 Silicone Skin Case bag for Garmin Nuvi GPS $3.30 Time Remaining: 15d 10h 3m Buy It Now for only: $3.30 |
 Blue Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $2.99 Time Remaining: 12d 19h 32m Buy It Now for only: $2.99 |
 Silicone case TomTom One 125 130 140 S 130S 140S 125S T $6.99 Time Remaining: 25d 12h 18m Buy It Now for only: $6.99 |
 Garmin 43 Inch Silicone Skin Case Green $3.51 Time Remaining: 17d 6h 10m Buy It Now for only: $3.51 |
 iPhone 3G 3GS Sesame Street Elmo Silicone Case NEW $15.95 Time Remaining: 9d 1h 23m Buy It Now for only: $15.95 |
 35 Silicone Skin Case Cover for Garmin Nuvi 35 200 Case Cover Skin Accessory $3.30 Time Remaining: 2d 13h 20m Buy It Now for only: $3.30 |
 True Blue Silicone Case for Tomtom Go 510 710 910 $3.90 Time Remaining: 18d 7h 29m Buy It Now for only: $3.90 |
 iPhone 4 4S Hello Kitty PINK Silicone Back Case Cover $6.49 Time Remaining: 23d 2h 18m Buy It Now for only: $6.49 |
 Garmin Silicone Case Slip for Dakota 10 20 Series NEW $15.60 Time Remaining: 22d 22h 32m Buy It Now for only: $15.60 |
 43 inch Blue Silicone Skin Case for Garmin Nuvi GPS $3.30 Time Remaining: 15d 10h 45m Buy It Now for only: $3.30 |
 iPhone 4 4S Hello Kitty DARK PINK Silicone Back Case Cover $6.49 Time Remaining: 23d 2h 23m Buy It Now for only: $6.49 |
 iPhone 4 4S Hello Kitty BLUE Silicone Back Case Cover $6.49 Time Remaining: 23d 2h 15m Buy It Now for only: $6.49 |
 Garmin 35 Inch Silicone Skin Case Blue $3.51 Time Remaining: 17d 6h 6m Buy It Now for only: $3.51 |
 Tomtom One V4 V5 IQ REGIONAL SERIES 30 Silicone Case $4.69 Time Remaining: 3d 5h 51m Buy It Now for only: $4.69 |
 Garmin 35 Inch Silicone Skin Case Pink $3.51 Time Remaining: 17d 6h 6m Buy It Now for only: $3.51 |
 Green Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $2.99 Time Remaining: 12d 19h 31m Buy It Now for only: $2.99 |
 Garmin CASE EDGE 800 SILICONE CASE GPS Accessories $13.57 Time Remaining: 28d 22h 40m Buy It Now for only: $13.57 |
 Rubber Silicone case For TomTom One V4 IQ 125 130 140 S $6.99 Time Remaining: 18d 13h 52m Buy It Now for only: $6.99 |
 Green Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $3.30 Time Remaining: 4d 11h Buy It Now for only: $3.30 |
 35 Silicone SKIN Case for Garmin 200250260205265T $3.30 Time Remaining: 15d 10h 45m Buy It Now for only: $3.30 |
 35 Silicone SKIN Case for Garmin 200250260205265T $3.30 Time Remaining: 18d 10h 21m Buy It Now for only: $3.30 |
 Gel Silicone Skin CASE cover for Garmin Nuvi 250w 260w $3.30 Time Remaining: 18d 11h 1m Buy It Now for only: $3.30 |
 Blue Silicone Skin CASE cover for Garmin Nuvi 250w 260w $3.30 Time Remaining: 18d 11h 55m Buy It Now for only: $3.30 |
 Blue Gel Silicone Skin CASE Accessory Slip ON cover for Garmin Nuvi 250w 260w $3.30 Time Remaining: 4d 11h Buy It Now for only: $3.30 |
 3D Hello Kitty iPhone 4 4S RED Silicone Back Case $9.98 Time Remaining: 26d 6h 44m Buy It Now for only: $9.98 |
 SILICONE SKIN CASE FOR TOMTOM GO 510 710 910 GPS SATNAV $7.76 Time Remaining: 3d 20h 28m Buy It Now for only: $7.76 |
 1 Incipio dermaShot 1337 Silicone Case For iPod Touch 2G $11.69 Time Remaining: 3d 9h 49m Buy It Now for only: $11.69 |
 Garmin Silicone Case f Edge 800 $19.95 Time Remaining: 21d 2h 3m Buy It Now for only: $19.95 |
 Garmin Silicone Case f Edge 800 $14.13 Time Remaining: 2h 9m Buy It Now for only: $14.13 |
 iPhone 4 4S Hello Kitty BLACK Silicone Back Case Cover $6.49 Time Remaining: 23d 2h 19m Buy It Now for only: $6.49 |
 iPhone 4 4S Hello Kitty RED Silicone Back Case Cover $6.49 Time Remaining: 23d 2h 21m Buy It Now for only: $6.49 |
 Garmin 010 11344 10 Protective Silicone Case For Dakota Series GPS $25.99 Time Remaining: 21d 10h 51m Buy It Now for only: $25.99 |
 Garmin 010 10644 03 Silicone Protective Case For Edge 800 $26.99 Time Remaining: 1d 4h 27m Buy It Now for only: $26.99 |
 TELETYPE 9706 WORLDNAV 7300 7400 CUSTOM SILICONE CASE $51.05 Time Remaining: 7d 4h 34m Buy It Now for only: $51.05 |
 Garmin 43 Inch Silicone Skin Case Black $6.49 Time Remaining: 14d 21h 7m Buy It Now for only: $6.49 |
 Garmin 35 Inch Silicone Skin Case Pink $9.26 Time Remaining: 14d 21h 15m Buy It Now for only: $9.26 |
 Garmin 35 Inch Silicone Skin Case Green $7.38 Time Remaining: 14d 21h 15m Buy It Now for only: $7.38 |
 Garmin 35 Inch Silicone Skin Case Blue $9.26 Time Remaining: 14d 21h 15m Buy It Now for only: $9.26 |
 Garmin 43 Inch Silicone Skin Case Clear $9.26 Time Remaining: 14d 21h 15m Buy It Now for only: $9.26 |
 Garmin 43 Inch Silicone Skin Case Blue $9.26 Time Remaining: 14d 21h 15m Buy It Now for only: $9.26 |
 Garmin 43 Inch Silicone Skin Case Green $9.26 Time Remaining: 14d 21h 15m Buy It Now for only: $9.26 |
 Garmin Silicone Case f Edge 800 $18.23 Time Remaining: 15d 12h 3m Buy It Now for only: $18.23 |
Medium-voltage Zno Overvoltage Surge Arresters With Silicon Casing
Lately, for overvoltage protection in medium-voltage power transmission networks have been more and more used ZnO overvoltage surge arresters with silicon casing.
Such arresters are composed of highly nonlinear resistor blocks. Nonlinearity is related to the current through the arrester dependence of the voltage. The arrester resistance is inversely proportional to the voltage applied. In this way, during the shock wave, arisen in a protected line due to a lightning stroke or switching manipulations in the system, the arrester resistance is reduced, and the shock wave can flow through the arrester into the earthing system. When overvoltage condition is terminated, the arrester will re-establish its high resistance condition. The ZnO varistors ensure stable electrical characteristics.
The ZnO blocks are tied together into a whole by strips, ensuring high mechanical strength. The casings of such arresters are made of silicon rubber that has excellent both mechanical and electrical properties. Main advantages of the arresters with these casings, compared to the ceramic casing arresters are:
• small dimensions,
• small mass,
• transportation and installation advantages,
• no risk of the casing explosion, as with the porcelain types,
• the hydrophobic surface prevents water from gathering over the entire surface during rainfalls – water on the surface is formed (gathered) into droplets.
Additionally, such arresters may have a "disconnecting device" built-on. Such a disconnecting device operates, i.e. performs its function, only when the arrester is damaged to such an extent, that its original resistance cannot be returned to the 'pre-overvoltage' condition (the arrester has lost its original nonlinear characteristic). In such a case, a constant discharge current would have flowed through the arrester. The consequence could be earth protection operation, und undesired disconnection of that part of the network. A constant discharge current heats up the disconnecting device, and the latter physically disconnects earth contact – and earth terminal is thus separated from the arrester.
Consequently, there are two advantages of the surge arrester with disconnecting device:
• visible indication that the arrester is damaged (simple search for damaged arresters);
• interruption of the earth contact, and thereby prevention of undesired earth protection disconnection.
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