Q:Is there a time to switch on the computer? How to check

Computer (my computer) right click - manage - event viewer - Windows log - system, where you can see the log.

Q:Not the starter problem lamp did not bad some time after a few hours before the bright Is not the voltage problem ah? The Please know how to help or help you have to learn every day

Is that kind of long fluorescent lamp? Then you first check the 2 side of the lamp to see if there is no burning caused by poor contact, Then there is the lamp and the starter!

Q:What is the difference between the inherent opening time and the full disconnection time of the high voltage circuit breaker?

Inherent opening time: no load time Full breaking time: with load opening time = no load sub-gate time + arc time

Q:China's accession to the WTO for so long, how not switch ah? When is the switch?

Your knowledge is not realistic. If you say the switch, refers to the customs, in fact, did not join the World Trade Organization, China's customs and customs system has long been established and constantly improve. People's Republic of China Customs is the country's entry and exit supervision and management organs, the implementation of vertical management system, the organization is divided into three levels: The first level is the General Administration of Customs; The second level is the Guangdong Branch, Tianjin, Shanghai, two Commissioner Office, 41 directly under the customs and two customs schools; The third level is directly under the jurisdiction of the Customs and Excise Department 562 subordinate customs agencies. In addition, there are offices in Brussels, Moscow, Washington and Hong Kong. China Customs officers (including customs anti-smuggling police) more than 48,000 people.

Q:What is the response time of the switch?

The time required to switch from the on state to the off state, or from the off state to the on state, the time between the two is not the same, and generally take the average value

Q:I would like to use photoelectric switch and time relay control solenoid valve delay how to connect ah

Brother, put your request in detail. Or immortal is also difficult to start.

Q:Switching power supply voltage to maintain a long time: generally up to 20ms or so. What does that mean?

After the power, the output voltage can be maintained for about 20 milliseconds, that is, 0.02 seconds

Q:Switch socket a long time how dirty dirty

Moves three: Internal cleaning, key switch or socket, dust may be through a small gap or the socket hole into the switch to the inside, if you want to clean the inside, the premise is to close the gate, and then open the front cover, preferably a small brush inside the sweep The dust, do not use water to clean or use very wet things to wipe, this is not safe, clean with water may be difficult to wipe dry, wait until after power may have security risks. Moves four: Switch socket cleaning in the weekdays may often be used, then if the pro is worried, or do not want to clean, it is best to paste a thin switch stickers, both beautiful and can protect its clean.

Q:Transistor 8050 do switch circuit response time how long, zero a few seconds?

The switching speed is determined by the entire circuit. Not to say that the transistor itself is how much, this circuit is how much. Such as the delay circuit, you can let the signal after a few seconds to let the transistor action, or a few minutes, a few hours, a few ... ... only action.

Q:How can I switch the power supply at the set time?

With the goods have detailed instructions For a drinking fountain set Monday to Friday as early as 8 o'clock to 11 o'clock and Monday to Friday 13 pm to 17 points of the two time to open the steps: ★, proof of the current moment, while pressing the "clock" and "hour" to adjust the hour of the clock display, press an increase of one hour, long press can be quickly adjusted, using the same method, you can set the current week, minutes. ★, first press the "mode" button, the working mode from the "off" to "automatic" mode (the display shows the lower part of the automatic words).