In shanghai, myeongju, close to the yangtze river, has seen the long triangle, and the dominant geographical position has given rise to a unique sea culture that attracts the tide of the times to follow and develop. Shanghai has always been marked by an inexhaustible passion, each inspired by a group of quiet individuals and a seemingly subtle sub-point。
Let's go first. History
Shanghai is where the electricity industry began。
At 0700 hours on 12 june (882), the first power plant in shanghai began supplying electricity. Under nightfall, 15 arc lights were luminous on 6. 4 kilometres of electricity lines, attracting hundreds of chinese to the perimeter and numerous foreign and chinese newspapers。
Shanghai is also a place where china's electrical energy is measured and depleted。
For 20 years, the electrical division of the shanghai public rent industry bureau installed a british-produced “truckling hawkham” single-phase power table for the first 12 users. For three years, the electrical department of the british chamber of commerce and industry installed the first third phase of electricity meters in shanghai at the british comptoir flour mill。
In the year of proclamation, the electrical energy metering authority, which was established by the electrical department of the shanghai department of public rent industry, was born, and in shanghai, specialized places for the central overhaul and testing of electrical meters were gradually formed。
As a result, the shanghai electric energy measurement management system (semms) was in its infancy. This small series of tributary events, which in a changing era are nothing but the end of the sea, breeds the infinite possibility of breaking the future。
From the first group of 12 electric meters to the current total of more than 11 million electric meters; from the early use of electric meters by foreign firms to the subsequent dominant position of national electric meters; from the initial mechanical meters to the current smart meters, shanghai has a long history of electricity meters, which is a hologram sample of china’s electricity meters history。
This deep historical source has also injected powerful and innovative genes into shanghai metrologists。
Look at the world, heinawakawa
There has been strict domestic regulation of electrical meters, a living measuring device。
For its part, the government has placed the electrical energy table in the directory of centrally managed metering devices and has implemented the rule of law management measures “first mandatory, time-limited and end-of-life rotation” as required by relevant measurement laws and regulations and control protocols. Of these, civilian electrical meters are generally inspected for periods not exceeding eight years. At the same time, government measurement authorities attach great importance to the regulation of the electrical watch industry. The grid company uses a series of technical standards and management systems to implement full life-cycle management of the meters to ensure that each of the meters is controlled and controlled at all times。
However, shanghai measures people look to the world and find that, unlike our traditional “one-size-fits-all” mode of fixed-term rotation, “soft” replacements of electrical meters are generally carried out abroad through the use of sampling tests. Samples began after eight years of operation in philadelphia, united states, and sampled after 16 years in florida; in germany from 16th year of installation; in canada from 12th year of installation; in the united kingdom from 8th year of installation; and in the international law organization of metrology, a guide entitled " follow-up on the use of active civil meters using sampling methods " was published to explore how to follow up on the civil watch that was due to expire。
Is the pattern of state change not feasible in shanghai? At the oiml tc3/sc4 meeting held in germany in november 2006, the chinese delegation, which included experts from shanghai, expressed the view that “the mediums involved in our vast air, water and thermal tables are very different; and that there is no media problem in the electro-energy table, which is most likely to be managed first”. It was as a result of this meeting that shanghai metrologists gained greater understanding of and interest in the use of statistical sampling methods for the replacement of electrical meters。
Bold innovation. Standards first
There is a scientific theoretical basis for the replacement of electrical meters based on statistical sampling methods, but test data are also needed as a basis and standard norms as a basis。
Over the more than 10 years from 2005 to 2015, the shanghai metrology centre has, cumulatively, carried out measuring performance testing of over 600,000 electrons. Test data indicate that the working life of the electrons meters has increased significantly and that the overall quality is stable and reliable。
In 2013, the state's online ocean power actively promoted the development and publication by the shanghai quality monitoring authority of a local standard, the method of accounting for retortments for the measurement of electro-measure miscalculation, which established effective relief pathways and institutional safeguards for the introduction of the replacement of electrical meters。
Since 2014, a consensus has been reached between the shanghai quality monitoring agency and the national networking power network, which is cooperating in the exploration of a sample-based energy table replacement strategy, which has received significant attention from the department of metrology of the general directorate of quality inspection and the national network marketing department。
In 2016, the local measurement control protocol for the shanghai market, jjg (沪) 56-2016, was officially published. For the first time in our country, the protocol proposes a sample determination method for the maximum mass level of the electrical meters, which allows for the extension of the network life of the meters。
In 2018, the shanghai market local metrology code, jjf(沪)57-2018, was officially published. The code details the responsibilities and steps involved in the replacement of electrical meters, identifies the relevant regulatory and supervisory requirements, and ensures that the replacement of electrical meters is orderly and smooth。
Scientific theories, solid data and rigorous standards, all of which have injected victory into shanghai's bold innovation
Pilot validation, steady roll-out
With the support of a scientific and well-developed management system, shanghai metrologists have embarked on a rigorous approach to the practice and exploration of a model for the management of the replacement of electrical meters。
In a letter dated 9 april 2018, the general directorate of state monitoring of markets agreed to a pilot for the replacement of electrical meters in the shanghai free trade pilot zone (pudong new zone) in china, using a statistical sampling-based adjustment inspection cycle, and to formally begin the implementation of the pilot model for the management of the replacement of electrical meters。
In may of the same year, the shanghai bureau of quality monitoring, the government of the pudong district and the national networking power for the sea, among others, jointly organized the launch of the pilot and the 5-20-equality measurement knowledge campaign on the extension of the china (shanghai) free trade pilot zone with a statistical sample to extend the rotation of the electric energy table. The campaign, using a new form of learning-by-doing and spot-calling, attracted a total of more than 310,000 responses in 50 days of activity and nearly 11 million page views。
In november of the same year, the pilot was successfully completed, and a total of 68 batches within the pilot scope, totalling more than 510,000 expired electrons, were approved for a four-year extension by letter from the shanghai quality monitoring board. As a result, shanghai has also become the first country-wide area to use statistical sampling methods for the replacement of electrical meters。
In may 2019, the shanghai markets regulatory authority issued a letter deciding to replicate the roll-out of the replacement of electrical meters throughout shanghai based on the success of the pilot in 2018. Finally, all 66 batches of more than 1. 5 million electrical meters were approved by the shanghai market supervisory authority for a four-year extension。
Reduction efficiency, green development
Small electric meters serve as a scale for the settlement of the energy trade, as a bridge between electricity users and grid companies, involving the people of the country, balancing the three interests of the state, business and the population, and bringing together the whole body. The same is true of the electrostatic replacement management model, which is a marginal feeder, but which may give a light for change。
The cost-effectiveness of the ecm model is in line with the efforts of the national grid company to advance the deployment of the “reducing savings”. In shanghai alone, cumulative savings of $438 million in investments in the procurement, testing and installation of electrical meters were realized in 2018 and 2019. Replicating throughout the country would reduce the associated costs by more than $10 billion per year。
The management model for the replacement of electrical meters is socially beneficial and is consistent with the national concept of green development. It has been estimated that the implementation of a model for the replacement of meters at the national level will reduce plastic consumption by an average of 22. 68 million tons per year, save metals by 18. 9 million tons, reduce electronic waste by 10. 8 million tons and reduce co2 emissions by 430,000 tons。
Up and down
"step up to a thousand miles." from the initial idea, to the accumulation and validation of data, to the successful piloting of the ftas, to the extension of the city-wide process, the replacement of the shanghai electro-classes is a step-by-step step towards the implementation of changes and innovations in the electro-class management model. But the footsteps of innovation will never stop。
In 2019, a pilot project entitled “assessment and replacement of intelligent electrical meters based on remote online monitoring and large data analysis” was conducted under the guidance of the marketing department of the national network company. Finally, national online ocean power has developed a “system-functioning, data-quality, mispositioned and regulatoryly sound” system for the replacement of electrical energy tables, and has been proactive in integrating the system into the process of changing electrical meters, using the “fast replacement” method to track the quality of extended use of electrical meters。
A small, intelligent electromechanical table throughout the city is the most basic component of the energy internet and the “guardian” of energy measurement. Based on shanghai's “excellent global city” positioning, the shanghai electrician draws on the dynamism of the shanghai innovative city building, actively pursues the corporate purpose of “people's electricity for people” and contributes to the creation of national network companies that are leading energy internet enterprises with chinese characteristics. The innovation in the management model for the replacement of electrical meters is bound to open a new chapter in the management of measuring devices in our country, providing the shanghai programme for the transformation of our overall measurement management system and contributing to the “shanghai wisdom” of companies to better serve people's lives。
