After the end of the double 11 saw someone out of the box drying mango, really just out of the box. . I long grass, a plan to double the time to buy twelve, z4x did not grab the 11th day, around the time to see No. 12 Z3S spike 1899 or 1799 have come forward, forget the final hand with ticket IOUs 1779. For my engineering dog, who works outside the country all the year round, it's a waste of life to not have a bit of fun. The whole TV without a screen is a look at the TV. It's good to have a good look at the movie and go home for a holiday. That's it. . In fact, I have a home, I also want the entire projector 5.1 speakers, but it is far in the future ah. .
Second, out of the boxIn Jingdong, it was bought the next day. The outer packaging was very tight, and the inflatable bag was protected. The packaging was in place.
There is a large Z3S on the packaging, and the overall packaging is black.
The back of the box shows various parameters.
After opening it is a thin layer of cotton that acts as a buffer.
After opening it is the true face of the machine, and the upper panel is covered with a film. There is no tear film yet. After tearing, it is estimated that it is also a fingerprint collector.
Further down is the instructions, what the warranty card does, don't look, go directly to the next one, then power, the av line.
Av line, the estimated application scenario I can only think of the old dvd machine, as well as my home Unicom network television, but also this kind of mouth.
At the same time loose a 3D glasses, there is a storage bag, a glasses cloth, charging line, it is said Jingdong sell 199 ....
First, the appearance is the same as the outer packaging. The overall appearance is black and it is very graded.
The back interface is fairly rich, from left to right, up and down. The first is the keyhole, TF card slot (with 8G memory card) power socket, two USB2.0 data ports, one USB3.0 data port, two HDMI ports, one black rectangular block, power button Optical fiber output port, av port, network cable jack, and headphone jack.
Both sides are speaker holes.
The front baffle needs to be removed, and the lens and the heat sink are in the eyes.
The above is the touch operation and focal length adjustment, focal length knob is a bit tight, not easy to adjust, there is no high-grade kind of smooth sense of damping.
The built-in remote control should be Bluetooth and use button batteries. However, the Forum reaction battery is generally consumed too quickly. I have already applied for a remote controller using a No. 7 battery, and I like the point of sale.
Fourth, start the paperPut the machine away, you can boot, the first boot there are many need to set, according to the operation, the next step to the next step.
You can also install software. It's good to watch a live broadcast. . This brightness can only be used at night, or a thick curtain can be seen. The speed of the built-in system response is OK. Overall, I am very satisfied. . Evening in the bed to watch a live broadcast how good, previously only use the computer to see, that the small screen looked tired pain, now use this more than good, see a man running, Lehe much better.
In addition to seeking 3D movie download site, there is also a Japanese love action movie is also 3D? With the request. . .
V. SummaryAdvantages: 1. Portable
2. It's cheap, usually more than 2,000, more than 1700 buy one, I feel very worth it.
3. Fast response
4. The appearance of tall
Disadvantages: 1. Just bought the day to crash twice
2. The speakers are not shy. Can only listen to sound
3. Brightness is not high.
Product Description
SPD Surge Protective Device,Lightning Surge Protector
Surge Protection Device (SPD)
It is a device used to limiting instant surge voltage and discharge surge current, it at least including a non-linear component.
Surge protective Device Model Selection
With the impact of international information flow, the rapid development of microelectronic science and technology, communication, computer and automatic control technology, make the building start to go for high quality, high functional area, formed a new building style-intelligent building. As inside the intelligent building there are lot of information system, <<Building lightning protection design norm>> GB50057-94(2002 vision)(hereafter brief as <<lightning protection norm>>) put forward the relative requirement to install the surge protective device, to ensure the information system safely and stable running.
SPD essentially is a equipotential connection material, its model selection is according to the different lightning protection area, different lightning electromagnetic pulse critical and different equipotential connection position, decide which kind of SPD used in the area, to achieve the equipotential connection with the common earth electrode. Our statement will based on SPD's maximum discharge current Imax, continuous operating voltage Uc, protection voltage Up, alarm mode etc.
As per << Lightning Protection Norm>> item 6.4.4 stipulation "SPD must can withstand the expected lightning current flow and should confirm to the additional two requirements: the maximum clamp voltage during surge across, capable to extinguish the power frequency follow-on current after lightning current across." That is the value of SPD's max. clamp voltage add its induction voltage of two ends should be same with the system's basic insulation level and the equipment allowed max. surge voltage.
SPD for Power Supply System Series Selection Guide
The installation of SPD at each lightning protection zone, according to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category, its insulation withstand impulse voltage level can determine the selection of SPD. According to the standard of low voltage electrical appearance, make classification of electrical equipment in accordance with the over voltage category as signal level, loading level, distribution and control level, power supply level. Its insulation withstand impulse voltage level are:1500V,2500V,4000V,6000V. As per to the protected equipment installation position different and the different lightning current of different lightning protection zone, to determine the installation position of SPD for power supply and the break-over capacity.
The installation distance between each level SPD should not more than 10m, the distance between SPD and protected equipment should as short as possible, not more than 10m. If due to limitation of installation position, can't guarantee the installation distance, then need to install decoupling component between each level SPD, make the after class SPD can be protected by the prior class SPD. In the low voltage power supply system, connecting an inductor can achieve the decoupling purpose.
SPD for power supply system specification selection principle
Max. continuous operating voltage: bigger than protected equipment, the system's max. continuous operating voltage.
TT System: Uc≥1.55Uo (Uo is low voltage system to null line voltage)
TN System: Uc≥1.15Uo
IT System: Uc≥1.15Uo(Uo is low voltage system to line voltage)
Voltage Protection Level: less than the insulation withstand impulse voltage of protected equipment
Rated discharge current: determined as per to the lightning situation of the position installed and lightning protection zone.
SP1 Series
Normal Working Conditions
-Altitude not exceed 2000m
-Ambient air temperature:
Normal range: -5ºC~+40ºC
Extend range: -40ºC~+80ºC
-Relative Humidity: 30% - 90% under indoor temperature condition
- At the place without obviously shaking and shock vibration
- Non-explosion danger medium, non-corrosion gas and dust ( including conductive dust)
Classification
-As per Nominal Discharge Current:
5,10,20,30,40,60KA(8/20µs)
- As per Maximum continuous operating voltage:
275V,320V,385V,420V,440V,460V
- As per to poles
1P,1P+N,2P,3P,3P+N,4P
- As per auxiliary functions:
a. With remote signal output ( remote alarm function)
b. Without remote signal output
Selection Principle
- The continuous applied voltage on the two terminals of SPD should not more than the maximum continuous operating voltage Uc value;
- The voltage protection level Up of SPD should less than the maximum impulse withstand voltage of the protected equipment;
- As per to the different earthing system and protection mode to select the specification accordingly;
Product Features
1, built-in over-current overheating, temperature control circuit technology.
2, the module design, easy installation, online replacement.
3, low leakage current, fast response time, low residual voltage.
4, alarm indication device, green (normal) v red (fault).
| Model/Technical Parameters | WR-B60 | WR-B80 | WR-B100 | WR-B120 | WR-B150 |
| Rated Operating Voltage Un (V ~) | 220V 380V | 220V 380V | 220V 380V | 220V 380V | 220V 380V |
| Maximum Continuous Operating Voltage Uc (V ~) kV | 385V 420V | 385V 420V | 385V 420V | 385V 420V | 385V 420V |
| Voltage Protection Level Up (V ~) kV | ≤1.8≤2.2 | ≤2.4≤2.5 | ≤2.5≤3.2 | ≤3.4≤3.7 | ≤4.0≤4.5 |
|
Maximum Discharge Current Imax(8/μ20μs)kA |
60 | 80 | 100 | 120 | 150 |
|
Nominal Discharge Current In(8/μ20μs)kA |
30 | 40 | 60 | 80 | 100 |
| Response Time | <25 | <100 | |||
| L/N(mm²)The Cross Section Of L/N Line | 16,25 | 16,25 | 16,25 | 16,25 | 25,35 |
| PE (mm²)The Cross Section Of PE Line | 16,25 | 25,35 | 25,35 | 25,35 | 35 |
| Fuse or Switch (A) | 63A | 63A | 63A,100A | 63A,100A | 63A,125A |
| The Line Section of Communication and Alarm (mm²) | ≥ 1.5 | ||||
|
Operating Environment-C |
(-40ºC~-+85ºC) | ||||
| Relative humidity 25 ºC | ≤95% | ||||
| installation | Standard Rail35mm | ||||
| Material of Outer Covering | Fiber Glass Reinforced Plastic | ||||
Surge Protector SPD,Surge Protection Device SPD,SPD
Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.zjthermalrelay.com