......8 total of 7 layers of each layer 70KW calculated current 107A, selected 125A molded case circuit breaker. How much YJV cable should be selected for the bridge under the electric well? More than the cable side by side laying is not there to reduce the coefficient? More
Iphone6 ??tips data line is not certified the general reasons and methods: . for non-original charger, is often the situation, this is due to the charger does not meet the specifications caused by the replacement of a qualified charger can be. . if the original charger appears the above failure, please continue to look down. . please check whether the data line is normal. The appearance of the data lines seem normal, which may have been broken. Check the method is to borrow someone else's data line to see if it can charge. . shows the plug symbol is normal is full of display. If full or show the lack of electricity, indicating that the phone tail no problem. . again, check whether the original charger can work properly. You can connect the charger to other USB port to see if the phone is working properly. Although not all chargers are suitable for iPhone, but the iPhone's charger is compatible with all USB phones. . if the above two check still can not charge, please try to insert the computer's USB port to see if the computer can identify the phone, to identify if it is to see if the charge, if not identified but not charged, it is estimated that the need for maintenance. If you can not identify can not charge, it is necessary to repair. If you can recognize and charge, replace the data cable and the charger (the original estimate is also damaged). . and then look at the voltage is not too low, not only to the maintenance station to repair, and pay attention to the iPad and iPhone do not mix the power adapter, the voltage is different.
Do not use other tools to measure it! Such as voltmeter, electric pen and so safe and practical downstairs that is not wrong, with the principle of distributed capacitance is able to test! The market is a broken tester, but we do not have this equipment (it seems quite safe), of course, conditional use of electromagnetic induction coil to see whether the magnetic field can also determine whether there is a way to pass there is no way to take a (The two ends of the capacitor are then connected to the circuit) and then remove the capacitor, with a wire at the same time to contact the capacitor at both ends of the spark that there are electricity , Indicating that the wire is a good prerequisite capacitance voltage and capacity is to meet the experimental requirements! Doing less! OK
General power supply line leakage, in most cases refers to the line of fire (phase) on the earth leakage. Slight leakage sometimes do not trip or fuse blown, and sometimes people touch the leakage will have Maai feel! You can first use the measuring pen to measure the line of fire (phase) to disconnect the total power, and then all the load all cut (unplug the power), with a multimeter R * 1K file, or R * 10K file measurement FireWire (From the middle of the line, or 0.618), until you find the grounding point, generally see where there is a broken skin or joints, these places more problems! And then wrapped with insulating tape on OK.
