1. The power card has front and back sides. Please check whether the power card is inserted backwards or in the opposite direction.
2. Confirm whether the electric meter belongs to your home. Especially when moving to a new home, the electric meter number in the corridor may not be correct.
3. There is an air switch under the meter box. Please check whether the air switch is open.
4. If it is a smart meter renovated in an old house, in addition to the switch in the meter box, there is usually an original old electric switch (or air switch) left in the corridor or on the wall. If you find it, please open it. , if the fuse is blown, please confirm that there is no fault and then replace the fuse and turn it on.
5. In new-style buildings, each house has separate power supplies. There should be a row of air switches on the wall. Please turn them on.
6. After the above is confirmed to be normal, you can find an electric pen to test whether each air switch has power. First test it at the meter box. If not, you can ask a nearby electrician for help or borrow one. There is really no way. You can also call the 95598 electric power customer service hotline to request support from the power department.
7. After confirming that the external power supply is normal, it becomes a wiring problem at home. You can ask an electrician or professional to help find and repair it. This is not something that ordinary people can handle.
Extended information
1. Smart electricity meter
(1) There are two types of three-phase four-wire and three-phase three-wire, used for measuring active energy. In this case, the user pays to purchase electricity and input it into the meter, and then the meter can supply power. One household has one meter and one card. The cards are not interchangeable. You can use the card to use electricity. It has functions such as pre-charging electricity bills, automatic meter reading, preventing electricity theft, and automatically turning off the power when the power in the card is used up.
(2) At the same time, the user's electricity purchase information is managed by a computer, making it easy to conduct inquiries, statistics, charging and printing receipts.
(3) The product adopts the most advanced IC card technology and SMT technology as well as a dedicated electric energy measurement chip and a single-chip microcomputer as the core components of all-electronic equipment. All technical indicators comply with the technology of GB/T18460. Require.
2. Main functions
(1) Prepayment function: collect electricity bills in advance, and automatically turn off the power when the remaining power reaches zero.
(2) Closing and pulling method: two specifications: internal switch and external power control switch.
(3) Memory function: The data in the table can be saved for 10 years in case of power outage.
(4) Display function: dual display, the meter shows the accumulated power consumption, and the LED display shows the remaining power and other information.
(5) Able to detect flows that ordinary meters cannot detect (such as sockets, wiring boards, etc.). Accurate billing.
(6) The intelligent price adjustment mode can intelligently adjust prices for users who consume too much electricity to achieve energy conservation and emission reduction.
3. Technical indicators
(1) Accuracy level: 1.0, basic error, starting, and latent movement comply with national standards.
(2) Current specifications: 2.5(10)A | 5(20)A | 10(40)A | 20(80)A | 30(120)A
(3) Meter constants : 1600imp/kWh 800imp/kWh
(4) Power consumption lt; 1.0W
(5) Non-contact (radio frequency) IC card patented technology: using the world’s most advanced Radio frequency IC card and base station technology, fully sealed, non-contact, moisture-proof, waterproof, anti-attack, anti-electricity theft, anti-magnetic, and good anti-interference performance.
(6) Data voting error correction technology: Each data in the table is stored in five places. If the data is wrong, it can be corrected in several other places, so that the data is absolutely reliable. Foolproof.
Reference: Baidu Encyclopedia-Smart Meter