Kingtronics Blog

 Over-voltage transients often occur in electric circuit. Such abnormal voltages are often caused by lightning strikes,atmospheric lightning discharges,accidental contact between power and communications lines,unexpected rise in the supply voltages of the installation as a result of misoperation,and appearance of voltage higher than normal during switching operations.The over-voltage transients,if not properly taken care of, not only cause damage to delicate components such as semiconductors,ICs and others in the equipment,but also are highly dangerous to personnel.Thus,protection against over voltages is necessary for high reliability and long life of general electronic equipment.The better protection selection for the over-voltage transients is ceramic gas discharge tubes.

The Ceramic gas discharge tube is a switching component which is controlled by voltage.It is used to be parallel connected between the line and line of equipment,or between the line and the ground(show as the bottom figures).If the over-voltage doesn't reach GDT's action voltage,the ceramic gas discharge tube will be in high resistance status.If the over-voltage is higher than GDT's action voltage,the GDT's internal gap will then break down.The Ceramic gas discharge tube is almost short-circuit at this time and limits the over-voltage to almost 0 volt within 50ns,so the surge current can be led to ground rapidly and then the equipment can be protected safely.When the over-voltage disappears, the Ceramic gas discharge tube will extinguish and return to high insulation status,preparing for the next action.  

Featurette and the story behind

1. With regard to investment
In order to produce a satisfactory film, Wu still mortgaged the house to the bank, Wu interview said: "Although a lot of investors are willing to give money, but there will be a lot of additional requirements, in order to do not want to film by investors too much interference, and finally mortgage the house to the bank, loans 80 million.

2. About actress
When the actress was chosen, Wu wanted to find a domestic famous actor, turn no, he said, (the domestic actress to find a like him to fight the same do not double, and even singing also want doubles, this is the current situation in the line!) So just choose the Lu Jingxian, starred in the Spike, really good, people from childhood martial arts, father was also an action actor, compared to some domestic actress, Lujen do very well.

3. About underwater fighting scenes
The film starts with a mirror of the underwater fight, which requires him to stay underwater for about three and a half minutes, just this one nearly 6 minutes of the long shot, Wu took a whole big half a month, 25 consecutive diving attempt, the last 26th time Wu feel the best, several times the suffocation, this dedication and dedication, is very worthy of affirmation.

4. About the hospital shootout
It's dangerous to shoot a gunfight in a hospital. Because the hospital's residential area itself has a lot of militants, this is the real armed elements are not the kind of film, according to Wu's introduction, before filming to find a lot of local people to protect security, should also give local militants some costs. This does not specify that all staff members should not act alone or go outside the film when filming, because there may be a real AK47 to give you a burst of hair at any time.

5. About Guest Accidents
This video Wu see props group too careless to guest's African girl hurt, very angry video Wu said dirty words, really is said you he horse what all ignore, the text did not play out, only play you all ignore.
But I was touched when I saw this video. Also very shaking, feel scold good, should do so, a good director of a responsible director should cherish and care for everyone in the crew, even if it is a small group of little play after the Wu personally hands-on help little girl wrapped wound and protective gear.

6. About Mr. Wu Gang
During the filming, Wu Gang teacher accidentally hit the plate, leading to the waist injury, can not move in order not to delay the filming progress, he simply after the treatment on the film to continue filming, by eating stop pain tablets quite, Wu gang teacher said, when you challenge yourself is no hesitation, this dedication to the Director Wu deeply admire.
Imagine if this role were to be given to a domestic actor who even had to be a stand-in for the singing to do what it would have done, and to think of it as a deep tribute to all the good actors in professional love.

More information please Kingtronics website: http://www.kingtronics.com/