Product description and usage:
1.Overview
Metal oxide arrester is a high-tech product in the s. It adopts oxygen zinc resistor with excellent nonlinear V-A characteristics. Therefore, the protection characteristics of lightning arrester under slope, lightning wave and operation wave are greatly improved compared with the traditional silicon carbide lightning arrester. In particular, zinc oxide resistor has good slope response characteristics, no delay to steep slope voltage, low operation residual voltage and no discharge dispersion. Thus, the silicon carbide arrester overcomes the inherent disadvantages of high steep slope discharge voltage caused by steep slope discharge delay and high operation wave discharge voltage caused by large dispersion of operation wave discharge, which greatly improves the protection margin under steep slope and operation wave, and can achieve nearly the same protection margin of steep slope, lightning wave and operation wave in terms of insulation coordination, So as to provide the best protection for power equipment, and then improve the reliability of protection. Zinc oxide arrester has the ability to absorb lightning overvoltage, operating overvoltage and power frequency transient overvoltage at the same time. Composite coat metal zinc oxide arrester is a high-tech product in the s. Molded by integral silicone rubber, it has good sealing performance, excellent explosion-proof performance, no dirt and no washing. It can reduce wet flash, corrosion resistance, ageing resistance, small size, light weight, collision resistance, easy installation and maintenance. It is an updated product of porcelain bushing arrester.
2. Technical standards
The standards for product production are gb- (EQV iec-4:) AC gapless metal oxide arrester and JB / t- composite sheath gapless metal oxide arrester for AC system.
3. Use environment
1.The ambient temperature is - 40 ºC ~ + 40 ºC;
2.The altitude shall not exceed m;
3.The power frequency is 48Hz ~ 62Hz;
4.The maximum wind speed shall not exceed 35m / S;
5.Areas with seismic crack degree of 7 and below.
The voltage applied for a long time shall not exceed its maximum continuous operating voltage
Surge protectors guard electrically powered equipment against power surges and spikes, which are temporary and potentially damaging voltage increases along electric wires and cables. These small devices are plugged into wall outlets, either directly or via cable, and offer one or more protected outlets for safely powering connected devices.
What equipment needs surge protection?
Any device that plugs into an AC outlet can benefit from a surge protector. The most vulnerable pieces of equipment are those with memory and sensitive electronic circuitry. A surge protector is essential for:
Note: If you need to protect a computer, consider an uninterruptible power supply (UPS), which provides surge protection and battery backup to allow a safe power-down in the event of an outage.
Look for surge protectors that protect hot, neutral and ground lines (3 line protection) for the most thorough protection.
Computers and network equipment can be susceptible to power surges travelling over Ethernet (or coaxial//modem) cables. If you are using a wired Ethernet connection for your computer, look for a surge protector with one or more protected Ethernet jacks.
Hospital-grade surge protectors have safety enhanced outlets and plugs. They may also include special features that protect against electric shock and anti-microbial coating to inhibit the growth of bacteria on the device.
Some surge protectors offer the ability to switch off power to individual devices without interrupting power to all connected devices, which can improve efficiency and convenience in device management.
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If you are travelling with equipment that needs protection, look for surge protectors with fold-down plugs and compact designs that can easily be stored in luggage, purses, briefcases and backpacks.
Some in-line PoE surge protectors are IP66 rated for resistance to dust and water. These are ideal for outdoor applications like security cameras or digital signage.
A surge protector's job is to absorb the brunt of power surges and spikes so your equipment doesn't have to. This will take a toll over time, so look for models that come with lifetime replacement warrantees as well as insurance to repair or replace any connected equipment damaged by surges.
Automatic Shutoff - Feature found on select surge protectors which automatically prevents power from reaching connected devices once the suppression circuit on a surge protector has been compromised.
EMI/RFI - Electromagnetic Interference (EMI)/ Radio Frequency Interference (RFI) are distortions or "line noise" on AC, /modem, network or coaxial lines. They usually show up as audio static or video "snow" and are caused by other equipment operating on the same electrical system as the affected device.
MOVs - Metal oxide varistors are triggered when excess current passes through a surge protector. They are the components in the device that actually absorb the surge from the power source and divert it to the ground wire.
PoE - Power over Ethernet, as the name implies, is a technology for delivering power and network connectivity over a single Ethernet cable. This makes it ideal for powering and connecting IP devices like security cameras, access control readers, wireless access points (WAPs), VoIP telephones, POS systems, sensors and lighting.
Power Surge - A power surge is a temporary, unwanted and potentially dangerous increase in an electrical system. It is most often caused by a power grid interruption, followed by a resumption in which the line voltage is higher than normal.
Power Spike - Very short (1 or 2 nanoseconds) and potentially extreme voltage increase in an electric system, often caused by an electrical storm.
Contact us to discuss your requirements of Metal Oxide Lightig Arrester Wholesale. Our experienced sales team can help you identify the options that best suit your needs.