Traditional Culture Encyclopedia - Traditional festivals - What are the safety objects to be used in the maintenance or repair of new energy vehicles?
What are the safety objects to be used in the maintenance or repair of new energy vehicles?
Currently the mainstream new energy vehicles mainly include hybrid cars, pure electric cars, etc., with batteries, motors and other components, with about 500 volts of high-voltage electricity, therefore, in the new energy vehicle maintenance, be sure to use professional tools and equipment, do a good job of safety protection, then it is very important to use the safety of the object, specific to these:
1.megohmmeterThe car in the Run the process of use, it is inevitable that collision, friction, resulting in high-voltage circuits and vehicle chassis insulation between the decline, so we must first test the high-voltage cables and parts of the body insulation resistance is located in the range of the specified value.
Megohmmeter, also known as digital megohmmeter, high-voltage insulation resistance tester, insulation resistance meter, etc., is mainly used to check the electrical equipment, electrical wiring to the ground and phase-to-phase insulation resistance, in order to ensure that these equipment, electrical appliances and wiring in the normal state of work, to avoid electrocution injuries and equipment damage and other accidents.
2. MultimeterMultimeter is a multi-function, multi-range, portable electronic instruments, can measure AC and DC current, voltage and resistance and other electrical parameters of the magneto-electric instrumentation, the use of the multimeter should be in line with the CAT Ⅲ safety level.
3. Clamp ammeterNew energy vehicle maintenance and diagnostics often need to measure the current in the wire, due to the presence of large alternating currents in the wires of the drive system, you must use a clamp ammeter for indirect testing. Clamp ammeter is a combination of current transformer and ammeter, can measure the current without cutting off the circuit.
4. Insulated handle disassembly toolsThe use of insulating materials for processing and applicable to the disassembly of electrical systems and other operations, including torque wrenches, quick wrenches, screwdrivers and other tools, must be equipped with an insulated handle with a voltage of more than 1000V.
PS: Protective gearTo wear including insulated gloves, insulated shoes, goggles and other safety gear, other operating tools should also be wrapped in advance using insulating tape to remove the exposed metal parts other than the contact point with the standard parts, to avoid instrument failure or operating tools exposed metal parts accidentally touching the live parts, resulting in high-voltage accidents.
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