The concept of electric cars is not recent. In 1884, English inventor Thomas Parker built the first electric car for mass production. The electrical vehicle (EV), however, only came to dominate the car market share in the 21th century. The need for safety standards of electric vehicles was developed Contact online >>
The concept of electric cars is not recent. In 1884, English inventor Thomas Parker built the first electric car for mass production. The electrical vehicle (EV), however, only came to dominate the car market share in the 21th century. The need for safety standards of electric vehicles was developed in tandem with the surge of globally manufactured EVs. ISO 6469-3:2021—Electrically Propelled Road Vehicles – Safety Specifications – Part 3: Electrical Safety provides electrical safety requirements for voltage class B electric vehicles.
ISO 6469-3:2021 specifies electrical safety requirements for voltage class B electric circuits of electric propulsion systems and conductively connected auxiliary electric systems of electrically propelled road vehicles. The standard covers test procedures and criteria for voltage class B electric vehicles. It provides electrical safety requirements for protection of persons against electric shock and thermal incidents. Specifications for insulation, protective barriers and enclosures, connectors, short-circuits, power supply circuits, equipotential bonding, isolation resistance, and more are detailed in ISO 6469-3:2021.
This standard does not provide comprehensive safety information for manufacturing, maintenance, and repair personnel.
ISO 6469-3:2021 defines voltage classes A, B, B1, and B2. B1 and B2 are subclasses of voltage class B. Both B1 and B2 voltage classes have different voltage levels and requirements. Here are the voltage classes broken down in direct current (DC) in voltage (V) and alternating current (AC) in in voltage (V):
Although electric vehicles (EVs) sold today produce less GHG emissions than cars fueled with gasoline, the manufacturing of battery-electric cars and the charging of these EV create notable emissions. The creation of large lithium-ion EV batteries involves the use of lithium, cobalt, and nickel—requiring the use of fossil fuels to mine these minerals and heat them to high temperatures. This intensive battery manufacturing means that building a new EV can produce around 80% more emissions than building a comparable gas-powered car.
It is worthwhile to note that electric motors do not emit CO2when they run, but instead, CO2can be emitted during the generation of electricity that EVs draw from the electrical grid and store in their batteries. The carbon-intensity of electricity generationvaries by provincebecause each province generates electricity differently, varying in degrees of drawing power from renewable point plants and fossil fuel plants.
Nevertheless, EVs will create fewer carbon emissions than gasoline-burning cars under nearly any conditions, and over the GHG emissions associated with an EV over its lifetime are typically lower than those from an average gasoline powered-vehicle (even when accounting for emissions intensive manufacturing to make batteries for an EV). For example, MIT researchers found that on average gasoline cars emit more than 350 grams of CO2per mile driven over their lifetimes, the hybrid/plug-in hybrid cars emit around 260 grams per mile of CO2, and the fully battery-electric vehicle creates just 200 grams.
The standard details the following measures shall provide both basic protection and fault protection for voltage class B electric vehicles:
ISO 6469-3:2021 is available in theISO 6469 – Electrically Propelled Road Vehicles Package that addresses on-board rechargeable energy storage systems for the protection of people inside and outside the vehicle as well as safety means and protection against electrical failures. The ISO 6469 Package includes the following standards:
ISO 6469-3:2021—Electrically Propelled Road Vehicles – Safety Specifications – Part 3: Electrical Safety is available on the ANSI Webstore.
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I. Background II. Government''s Measures to Promote the Use of Electric Vehicles III. EV Models in Hong Kong IV. Installation of EV Chargers V. Locations of EV Chargers for Public Access VI. "EV-Charging Easy" Mobile App
VII. Progressive Marketisation of EV Charging Service in Government Car Parks VIII. News and Events IX. Study Report X. Frequently Asked Questions XI. Further Information
II. Government''s Measures to Promote the Use ofElectric Vehicles
The Government has been promoting the use of EVs by the following measures:
Enterprises which procure EVs are allowed 100% profits tax deduction for the capital expenditure on EVs in the first year of procurement.
The Government allocated $180 million for franchised bus companies to purchase 36 single-deck electric buses, including 28 battery-electric buses and 8 supercapacitor buses, for trial runs to assess their operational efficiency and performance under the local conditions.
The Government has earmarked $80 million for the implementation of the Pilot Scheme for Electric Public Light Buses to test the operation and performance of different models of electric public light buses and the associated quick charging facilities, as well as conducting operational trials on various minibus service routes. Please click here for details.
IV. Installation of EV Chargers
In general, EV owners should charge their EVs by using charging facilities at their workplace, home or other suitable places. The public charging network mainly serves as supplementary charging facilities, enabling EVs to top up their batteries to complete their journeys when necessary. Therefore, potential buyers should consider charging arrangements before buying EVs.
To improve the charging efficiency, EPD has progressively upgraded standard chargers to medium chargers in the past few years (as compared with standard chargers, medium chargers can reduce the charging time by up to 60%). The two power companies and the commercial sector will also progressively upgrade their existing public standard chargers to medium chargers and install multi-standard quick chargers. EV suppliers have also been proactive in adding their EV charging facilities for their EV models at public venues.
With the steady growth in the number of EVs, there are private companies in the market that provide one-stop EV charging service, including installation of charging facilities and provision of charging service, at the EV owners'' car parks. To facilitate EV owners, some EV charging service providers also provide real-time information on the availability of their public EV chargers and reservation of their EV chargers through mobile Apps.
To assist individual EV owners to install charging facilities at their private parking spaces, the EPD has set up a dedicated team and service hotline (3757 6222) to provide them with relevant information and technical support. The two power companies also provides EV owners with one-stop services for the installation of charging facilities at their parking spaces, including on-site inspection, provision of technical advice, inspection of completed charging installation and connection of the power supply.Please see below the following information related to charging facilities:
As at the end of September 2024, there are 9,107 EV chargers for public use including 5,373 medium chargers in Hong Kong and 1,579 quick chargers in Hong Kong, covering all 18 districts.
Please click here for locations of EV chargers for public access.
VI. "EV-Charging Easy" Mobile App
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