3.2High voltage safety and power OFF operation

1.

高压安全及断电操作
VOYAH
6 September 2024
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2.

HV S AFETY AND P OWER - OFF
O PERATION
VOYAH
6 September 2024
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3.

高压安全
安全操作规范
高压断电、上电操作
VOYAH
6 September 2024
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4.

Contents
High voltage safety
Safe operation
specifications
HV power-off/on operation
VOYAH
6 September 2024
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5.

01
VOYAH
高压安全
6 September 2024
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6.

01
VOYAH
High voltage safety
6 September 2024
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7.

高压电的危害
高压电可导致以下事故
VOYAH
触电
电伤
二次事故
火灾
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8.

Hazards of HV Current
The HV current may cause the following accidents:
Electric
Electric
shock
injury
Secondary
Fire
accident
VOYAH
6 September 2024
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9.

高压电的危害
人体的电阻
人体的电阻并不是一个固定的数值 干燥的皮肤在低电压下具有相当高的电阻 当电压在500 1000V时 人体
电阻变下降为1000Ω
下列因素将会影响人体的电阻
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电流路径
人的体形 胖瘦高矮、
关节强弱
电压大小和频率
皮肤状况 厚薄、干湿、
受损或完整
6 September 2024
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10.

Hazards of HV Current
Electrical resistance of human body
The electrical resistance of the human body is not a fixed value. Dry body skin has a very high resistance at low voltage.
When the voltage is between 500 and 1,000V, the resistance of the human body drops to 1,000Ω
The following factors can affect the electrical resistance of human body:
VOYAH
Current path
Body shape (fat or thin, tall or
short and joint strength)
Voltage value and frequency
Skin condition (thick or thin,
wet or dry, damaged or intact)
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11.

高压电的危害
电流对人体的影响
高压电伤害人体的本质就是电流
为什么安全电压是36V
通过人体的电流越大 致命的危险性就越大
通过人体的电流分为三个等级
感知电流 能让人感觉到的最小电流 大约1mA
摆脱电流 人触电后能自己摆脱的最大电流 大约16mA
致命电流 在较短时间内危及生命的电流 50mA以上
VOYAH
6 September 2024
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12.

Hazards of HV Current
Effects of electric current on human body
The essence of HV damage to the human body is the electric current
Why is the safe voltage 36V?
The greater the electric current passing through the human body, the
greater the risk of death
The electric current passing through the human body can be divided into
three levels
Perceived current: the minimum current that can be felt, about 1mA
Let-go current: the maximum current a person can get rid of by himself/herself after
electric shock, about 16mA
Fatal current: life-threatening current over a short period of time, 50mA or above
VOYAH
6 September 2024
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13.

高压电的防护
车辆设计防护
颜色和警告标识/警示语
高压连接器口的接触保护
维修开关
高低压电气隔离
等电位连接
绝缘监控
高压互锁
VOYAH
6 September 2024
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14.

HV protection
Vehicle protection design
Color and warning labels/texts
Contact protection for HV
connector ports
MSD
High and low voltage electrical
insulation
Equipotential bonding
Insulation monitoring
HV interlock
VOYAH
6 September 2024
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15.

高压电的防护
车辆设计防护-高压部件标识
车辆所有高压线束及接插件均为橙色
车辆所有个高压部件上均会贴有带高压电符号的高压警告标贴。对车辆高压部件进行维修作业时 必须仔细
阅读高压部件上的警告标贴内容 并严格按照其指示进行操作
机舱
VOYAH
后备箱
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16.

HV protection
Vehicle protection design - identification of HV parts
All HV harnesses and connectors are marked in orange
HV warning labels with symbol will be affixed to all HV parts of the vehicle. When maintaining the HV parts of vehicles, it
is necessary to read the warning labels on HV parts carefully and operate in strict accordance with their instructions
Engine compartment
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Trunk
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17.

高压电的防护
车辆设计防护-高压部件接插件的接触保护
高压部件接插件设置有接触保护装置 并且高压端子深埋内部 可以防止直接或间接意外接触带电插头 从而
降低维修人员触电的风险
注意 如果高压连接器口的接触保护损坏 必须更换高压电缆总成 否则有可能造成人身危险。
VOYAH
6 September 2024
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18.

HV protection
Vehicle protection design - contact protection for HV component connectors
The HV part connectors are provided with contact protection device, and the HV terminal is embedded deeply, which can
prevent the direct or indirect contact with the live connector accidentally, thus reducing the risk of electric shock to the
maintenance personnel
Note: If the contact protection of the HV connector port is damaged, the HV cable assembly must be replaced,
otherwise personal danger may occur.
VOYAH
6 September 2024
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19.

高压电的防护
车辆设计防护-高低压电气隔离
车辆的高压电气系统和低压电气系统通过不同的线束实现完全的电气隔离和绝缘 高低压系统之间的能量
传输通过DC/DC完成
在DC/DC内部 主级线圈与次级线圈也并不相连 如果某个系统发生故障 并不会影响到另一个系统 这
样的设计可以大大减小车辆使用者发生触电的风险
VOYAH
6 September 2024
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20.

HV protection
Vehicle protection design - high and low voltage electrical insulation
The HV electrical system and LV electrical system of the vehicle are electrically insulated with each other through
different harnesses, of which the energy transmission is completed through DC/DC
Besides, the primary coil is not connected to the secondary coil in the DC/DC. Therefore, if one system fails, the other
system will not be affected. This design can greatly reduce the risk of electric shock to the vehicle user
High voltage
system
VOYAH
LV system
6 September 2024
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21.

高压电的防护
车辆设计防护-等电位连接
高压系统的组件通过壳体接地 但这并不是构成回路
是为了构成等电位。
高压组件在工作时 会在壳体上感应出电荷或者由于
高压组件故障导致壳体带电 从而带来危险 为了避
免这种情况 要求高压组件都必须可靠接地 通过将
高压组件接地确保各高压组件电位差为零。
注意 拆卸高压组件后 一定要确保高压组件接地良好 并进行等电位测试。
VOYAH
6 September 2024
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22.

HV protection
Vehicle protection design - Equipotential bonding
The components of a HV system are grounded through a
housing, which are intended to get the equipotential surface
instead of a loop.
The HV components can induce an electric charge on the
housing or cause the housing to be charged due to failure
when they are in operation, thus posing a hazard. To avoid
this, it is required that all HV components must be reliably
grounded, ensuring that the potential difference between each
HV component is zero
High
voltage
equipment
Note: After removing the HV component, make sure that the HV component is well grounded and perform an equipotential
test.
VOYAH
6 September 2024
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23.

高压电的防护
车辆设计防护-绝缘监控
如果系统监测到高压电气系统绝缘电阻值低于设定值 车辆会自动切断高压系统 并直接在仪表上点亮绝缘
电阻故障指示灯 提醒驾驶员和维修人员注意安全 同时车辆也无法上电
绝缘电阻故障灯
绝缘监控电路检测模型
GB-T18384 电动车安全最低要求 直流绝缘强度≥100Ω/V,交流绝缘强度≥500Ω/V
VOYAH
6 September 2024
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24.

HV protection
Vehicle protection design - insulation monitoring
If the system detects that the insulation resistance of the HV electrical system is lower than the set value, the vehicle will automatically cut
off the HV electrical system and directly illuminate the insulation resistance MIL on the instrument panel to remind the driver and
maintenance personnel to pay attention to safety. Meanwhile, the vehicle cannot be powered on
Insulation resistance MIL
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Insulation monitoring circuit detection model
Minimum safety requirements for EVs according to GB-T18384: DC insulation strength ≥100 Ω/V, AC insulation strength ≥500 Ω/V
6 September 2024
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25.

高压电的防护
车辆设计防护-高压互锁
高压互锁是一种用低压信号监测高压回路完整性的一种安全设计 当导电回路传递的信号中断时 高压蓄电
池的接触器就会断开从而切断整个高压车载电气系统 另外 高压互锁系统也可以防止在维修高压系统时
带电插拔高压连接器给高压端子造成的拉弧损坏
在上电过程中 如果检测到高压回路不完整 则系统禁止高压系统上电 从而避免潜在的安全事故
VOYAH
6 September 2024
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26.

HV protection
Vehicle protection design - HV interlock
The HV interlock is a safety design that uses low voltage signal to monitor the integrity of HV circuit. When the signal
transmitted by the conductive circuit is interrupted, the contactors of the HV battery will be turned off to cut off the HV
electrical system of the complete vehicle. In addition, the HV interlock system can also prevent arc damage to the HV
terminals caused by connecting and disconnecting the HV connector during maintenance of the HV system
During the power-on process, if the HV circuit is detected to be incomplete, the system will prohibit the HV system from
being powered on, so as to avoid potential safety accidents
Socket
Plugs
Socket
Plugs
Power supply +
Power supply +
Intermediate
interlock terminal
Power supply -
Intermediate
interlock terminal
Power supply -
Interlock
VOYAH
Battery pack
Disconnec
ted
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27.

高压电的防护
人员的防护
人体的安全电流为10mA 但是在有防止触电保护装置的情况下 人体允许通过的电流一般可按30mA考虑。人
员在进行维修作业时 必须穿戴全套的防护装备
VOYAH
6 September 2024
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28.

HV protection
Personal protection
The safety current of the human body is 10mA, but in the case of protection against electric shock, the allowed current
passing through the human body can generally be considered as 30mA. Personnel must wear full protective equipment
when performing the maintenance operations
VOYAH
6 September 2024
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29.

高压电的防护
防护工具
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绝缘手套
绝缘鞋
护目镜
绝缘服
绝缘防护帽
防护面罩
绝缘维修工具
绝缘表
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30.

HV protection
Protective tools
VOYAH
Insulating Gloves
Insulating shoes
Goggles
Insulating clothing
Insulating protective helmet
Protective mask
Insulation maintenance tools
Insulation meter
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31.

高压电的防护
工具的使用
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常规检查
正确穿戴
工具存放
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HV protection
Use of tools
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Routine inspection
Proper wearing
Storage of tools
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33.

高压电的防护
维修场地的防护
高压车辆的维修作业 必须在新能源专用工位进行 在进行操作之前 必须进行以下操作
在车辆周围安装安全防护栏来隔离场地
在车辆周围的醒目位置放置安全警示牌
防护栏
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安全警示牌
新能源专用工位
高压维修平台
6 September 2024
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34.

HV protection
Protection of maintenance site
The maintenance of HV vehicles must be performed at the special station for NEV. Before working, the following
operations must be carried out:
Install the safety barriers around the vehicle to isolate the site
Place the safety warning signs in prominent places around the vehicle
Safety guard
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Safety warning sign
Special station for new energy
High voltage maintenance platform
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35.

应急处理方法
在对EV车辆进行维修作业时 应遵循高压电安全操作规定 正确使用有效的防护用品和绝缘工具 尽可能的避
免人体触电的危险情况发生 当不小心意外发生后 应遵守和执行下列措施
应急处理原则
应急处理流程
您自己的安全享有最高的优先权。
使触电人员脱离电源。
保持冷静 先思考 后行动。
拨打紧急呼叫医疗服务。
切勿直接触碰触电的人员。
判断人员受伤情况。
如果可能的话 立即切断的电源。
根据人员受伤情况进行应急处理。
发生触电事故 力争在4分钟内进行应急处理。
VOYAH
6 September 2024
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36.

Emergency handling method
During the maintenance of EVs, it is necessary to follow the HV safety operation instructions, correctly use the effective
protective equipment and insulation tools, and avoid the electric shock as much as possible. However, when an
accident occurs, the following measures should be observed and implemented:
Emergency handling principle
Emergency handling process
Put your own safety first.
Keep calm and think before you act.
Do not directly touch the electric shocked person.
Call the emergency medical services.
If possible, cut off the power supply immediately.
Determine the injuries of personnel.
In case of electric shock, strive to handle the emergency
Handle the emergency according to the injuries of
within 4 minutes.
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Removing the electric shocked person from the power
supply.
personnel.
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37.

应急处理方法
应急操作
高压车辆的维修作业 如果不小心发生电气火灾 需要及时报警 在报警时应向被求救人员说明下列问题
事故地点在哪里——明确告知事发地点 地点 街道 门牌等
发生了什么事情——简短描述事故情况 以便急救中心能够采取必要的措施
多少人受伤以及受伤类型——首先告知最明显最严重 威胁生命 的损伤
等待被求救人员的查问——原则上对话应由急救中心来结束
VOYAH
6 September 2024
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38.

Emergency handling method
Emergency operation
During the maintenance operation of the HV vehicles, if an electrical fire happens accidentally, it is necessary to call the
police in time and explain the following problems to the rescuer:
Where does the accident happen? - specify the location (place, street, door number, etc.)
What is happened -- introduce the accident briefly so that emergency center can take the necessary measures
How many people are injured and what type of injuries they have - tell the most obvious and serious (life threatening) injuries first
Wait to be inquired by the rescuer - in principle, the conversation should be finished by the emergency center
VOYAH
6 September 2024
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39.

应急处理方法
应急操作
高压车辆的维修作业 如果遇到高压蓄电池事故 则需要执行以下措施
如果动力电池内部发出刺激性气味则代表动力电池已经漏液
皮肤接触动力电池内部物质时 立即用干净的布将接触到的污染物擦拭干净 并需要用大量水冲洗10-15min 如果有疼痛感
可用2.5%的葡萄糖酸钙软膏涂敷 若无改善或出现不适症状 请立即就医
吸入动力电池内部气体时 需要呼吸大量新鲜空气 如果出现呼吸困难 请立即就医
当眼睛接触动力电池内部物质时 需要用大量水冲洗 至少15分钟 若有疼痛感 请立即就医
若不小心勿吞动力电池内部物质时 需要大量饮水
发生上述事故时需要及时就医
VOYAH
6 September 2024
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40.

Emergency handling method
Emergency operation
During the maintenance operation of the HV vehicles, if a HV battery accident occurs, the following measures should be
taken:
If the HV battery gives off a pungent smell, it indicates that the HV battery has leaked
If the skin comes into contact with the substances inside the HV battery, wipe the contaminants immediately with a clean cloth and rinse with
plenty of water for 10-15 minutes. If you feel pain, apply 2.5% calcium gluconate gel and seek medical attention immediately when the
situation remains the same
If the gas inside the HV battery is inhaled, breathe plenty of fresh air and seek medical attention immediately when you have difficulty
breathing.
If your eyes come into contact with the substances inside the HV battery, rinse with plenty of water (at least 15 minutes). When you feel
pain, seek medical attention immediately
If the substances inside the HV battery are swallowed accidentally, drink a lot of water
Seek medical attention immediately in case of the above accidents
VOYAH
6 September 2024
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41.

应急处理方法
解除触电操作
如有可能 立即切断电源 在车辆上关闭启动开关断掉低压电或维修开关
切勿用手直接接触电线
切勿用潮湿的工具或金属物去拨电线
应使用干燥的木棒或绝缘救援钩使触电人员远离高压电
绝缘挂钩
VOYAH
6 September 2024
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42.

Emergency handling method
Electric shock treatment:
If possible, immediately cut off the power supply (turn off the
ignition switch of the vehicle to power off the low voltage or
MSD)
Do not touch the wire directly with hands
Do not use damp tools or metal objects to disconnect the wire
Always use a dry rod or insulated rescue hook to separate the
electric shocked person away from the HV
Insulated rescue hook
VOYAH
6 September 2024
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43.

应急处理方法
解除触电后操作
如果触电者神志清醒 则使其安静休息 如果有烧伤 则需对其进行降温处理 并用消过毒的无绒布进行包扎
若触电者神志昏迷、呼吸和心跳存在 应解开伤者上衣 利于呼吸 并确保周围空气流通 然后将伤者脚部垫
东西抬高 以便于脑部获得足够的血液供应
如果出现心室颤动 使用除颤仪进行除颤
如果呼吸和心跳停止 执行心肺复苏操作
VOYAH
6 September 2024
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44.

Emergency handling method
Operations after electric shock treatment
If the electric shocked person is conscious, allow him/her to rest quietly. If burned, cool down and wrap with the sterile lint
free wipe
If the electric shocked person is unconscious with breathing and heart rate, loosen his/her jacket (for breathing) and
provide sufficient fresh air. Then, lift the feet of the injured person with pads so that his/her brain can receive adequate
blood flow
In the event of ventricular fibrillation, use a defibrillator for defibrillation
If the breathing or heart beat of the injured person stops, perform the cardiopulmonary resuscitation
VOYAH
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45.

02
VOYAH
安全操作规范
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46.

02
VOYAH
Safe operation specifications
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47.

车辆维修人员资质要求
必须持的国家安监局发的《特种作业操作者 低压电工证 》
必须参加岚图组织的相关培训 并获得认证
使用有电子生命辅助系统 心脏起搏器等 的人员 不得参与高压车辆的维修
VOYAH
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48.

Qualification requirements for maintenance personnel
Must hold the Special operation certificate (Low voltage Electrician) issued by the State Administration of Work Safety
Must attend relevant training organized by VOYAH, and obtain the certificate
Must not participate in the maintenance of HV vehicles for personnel using electronic life support systems
(pacemakers, etc.)
VOYAH
6 September 2024
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49.

车辆维修人员资质要求
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作业范围
通过岚图高压电产品培训 维
修技师
通过岚图高压电产品转训培训
维修技师+钣喷技师
未参加过相关高压电产品
培训或转训的维修技师
驾驶车辆
Y
Y
Y
PDI、保养
Y
Y
N
非高压系统维修作业
Y
Y
N
高压系统维修作业 整车高压
电已切断并被确认无安全隐患
Y
Y
N
高压电系统断电/上电操作
Y
N
N
执行高压系统维修后的最终检查
Y
Y
N
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50.

Qualification requirements for maintenance personnel
Scope of operation
Maintenance technicians
passed VOYAH HV product
training
Maintenance technicians + sheet
metal painting technicians
passed VOYAH HV product
transfer training
Maintenance technicians not
participated in related HV
product
training or transfer training
Driving the vehicle
Y
Y
Y
PDI, maintenance
Y
Y
N
Y
Y
N
Y
Y
N
HV system power-off/on operation
Y
N
N
Perform the final inspection of HV
system after maintenance
Y
Y
N
Maintenance operations of non-HV
system
Maintenance operations of HV system
(vehicle high voltage
powered off without safety hazards)
VOYAH
6 September 2024
50

51.

电动汽车作业的安全准则
只有取得并通过岚图高压电产品技术培训认证的维修技师 才允许对高电压系统进行高压回路的检测和维修
工作 此外 作为一名高压系统操作的“专业人员” 能够清楚的对触电的危险和后果、相关的预防性安全
措施进行评估。在维修人员对混动车辆作业前 始终要考虑以下问题 才能保证安全隐患降到最低。
是否了解岚图车型的技术特点 是否具备相应的维修资质
对电动汽车进行作业前需确认是否已按照维修手册中断电流程操作
是否已验证切断高压电并放完高压电容的残余电量
是否对车辆的实际电压进行了记录 是否在车辆上设置了相应的警告标记
是否要防止车辆重新激活
VOYAH
6 September 2024
51

52.

Safety guidelines for EV operations
Only the maintenance technicians passed VOYAH HV product training and certification are allowed to perform the
testing and maintenance operations of the HV circuit of the HV system. In addition, as a professional technician for HV
system, he/she shall clearly know the electric shock risk and consequences and can evaluate the relevant preventive
safety measures. Before the maintenance personnel works on HEVs, he/she should always consider the following
problems to ensure that safety hazards are minimized.
Do I know the technical characteristics of VOYAH models and have the corresponding maintenance qualifications?
Has it been confirmed that the power-off operations are performed according to the service manual before working on the EVs?
Has it been verified that the HV is cut off and the residual charge of the HV capacitor is discharged?
Is the actual voltage of the vehicle recorded and appropriate warning labels placed on the vehicle?
Does the vehicle need to be prevented from being powered on?
VOYAH
6 September 2024
52

53.

电动汽车作业的安全准则
维修人员对新能源车辆作业前 应始终考虑以下防护是否正确使用
必须在新能源专用车位进行维修作业
移除所有的首饰和金属物品 金属导电可能会导致严重的电涌和伤害
佩戴绝缘手套 必须正确使用符合标准的高压绝缘手套 使用前必须测试绝缘手套是否破损
穿着工作服
佩戴护目镜和安全帽
穿着绝缘鞋
使用绝缘工具
VOYAH
6 September 2024
53

54.

Safety guidelines for EV operations
Maintenance personnel should always consider the correct use of the following protection measures before the
operations of NEVs
Maintenance operations must be carried out in special parking spaces for NEVs
Remove all jewelry and metal items: metals conducting electricity may cause serious power surges and personal injuries
Wear insulating gloves: wear standard HV insulating gloves correctly and check whether the insulation gloves are damaged
before using
Wear working clothes
Wear safety goggles and safety helmets
Wear insulating shoes
Use insulating tools
VOYAH
6 September 2024
54

55.

电动汽车作业的安全准则
高压作业安全监护人
维修操作时必须有两个以上人员在场 不得在一个人的情况下 单独进行任何高压维修任务。高压作
业安全监护人必须是有岚图高压车辆维修资质的人员。其工作职责为在高压电车辆维修时确认维修人
员的资质并监护维修人身的安全 具体如下
监督维修人员的防护用品的穿着和佩戴、高压作业工具的使用、以及维修安全警示牌等是否符合要求
监督维修人员执行断电和验电等的操作流程是否符合上的标准
负责对维修过程中的安全维修操作规程进行检查 监护人要按安全维修操作规程指挥操作 维修人员在做完一个
操作后要告知监护人 监护人要在作业流程单上做好标记
在维修技师工作完成后 检查车辆是否安全、是否达到维修标准
监护人要认证负起责任 确保维修过程的安全执行 避免发生安全责任事故
VOYAH
6 September 2024
55

56.

Safety guidelines for EV operations
Safety supervisor for HV operation
There must be more than two personnel on the maintenance site, and no HV maintenance operation should be
performed alone. The safety supervisor for HV operation must be the personnel with maintenance qualifications
of VOYAH HV vehicles. Their job responsibilities are to confirm the qualification and monitor the safety of
maintenance personnel during the maintenance of HV vehicles, such as:
Supervise the maintenance personnel's wearing of protective equipment, use of HV tools, and the compliance of maintenance
safety warning signs
Supervise the maintenance personnel to perform power-off and test operations to meet the above standards
Inspect the safety maintenance operation procedures during the maintenance process. The supervisor should observe the safety
maintenance operation procedures, and make a mark on the work flow sheet after being informed by the maintenance personnel
when the operations are finished
Check whether the vehicle is safe and meets the maintenance standard after the maintenance technician finishes the work
Ensure the safe execution of the maintenance process and avoid safety accidents with a strong sense of responsibility
VOYAH
6 September 2024
56

57.

电动汽车作业的安全准则
岚图汽车高压系统安全操作规程
在维修人员对新能源车辆作业前 应当仔细阅读岚图高压系统安全操作规程 然后在执行高压系统相
关操作
岚图高压系统安全操作规程详细见维修手册
VOYAH
6 September 2024
57

58.

Safety guidelines for EV operations
Safety operation rules of VOYAH HV system
Before working on the NEVs, the maintenance technicians should carefully read the safety operation rules of
VOYAH HV system
For the safety operation rules of VOYAH HV system, please refer to the service manual
VOYAH
6 September 2024
58

59.

03
VOYAH
高压断电/上电操作
6 September 2024
59

60.

03
VOYAH
HV power-off/on operation
6 September 2024
60

61.

断电/上电操作
注意事项
维修高电压系统时必须注意下列事项 否则可能导致人员伤亡
只能由专业人员(高压电工)切断高电压系统的电源
高压电工应确保电源已切断 等待10分钟后再进行作业
高压电工用相应的标牌标明是否已切断车辆电源
车辆高电压系统的所有相关作业(例如保养、维修电气系统)都只能由受过电气知识培训的专业人员来进行操作
VOYAH
6 September 2024
61

62.

Power-off/on operation
Notices
The following items must be noticed when maintaining the HV system, otherwise personal injuries or deaths may occur.
Only professional (HV electrician) is allowed to disconnect power supply of HV system.
HV electricians shall ensure that the power supply is disconnected and wait 10 minutes before working again.
The HV electricians should indicate whether the power supply of the vehicle has been cut off with corresponding signs
All work (e.g., maintenance, or repair of electrical system) related to HV system of the vehicle can only be carried out by professionals
that have been trained in electrical knowledge.
VOYAH
6 September 2024
62

63.

断电/上电操作
注意事项
不要触碰高压电缆 如果需要触碰高压电缆 则遵循以下说明
穿戴绝缘手套和护目镜等防护工具
用电子检测仪测量电缆和车身搭铁之间的电压
使用绝缘胶带将电缆绝缘
如果怀疑任一高压零部件和电缆损坏 应先断开蓄电池负极 等待3分钟后再进行操作
VOYAH
6 September 2024
63

64.

Power-off/on operation
Notices
Do not touch HV cables, and if you need to touch them, follow the instructions below
Wear protective equipment such as insulating gloves and goggles.
Measure the voltage between the cable and the body ground with an electronic tester.
Insulate the cable with insulating tapes.
If any HV components and cables are possibly damaged, disconnect the negative terminal of the battery and wait 3 minutes before
working again.
VOYAH
6 September 2024
64

65.

EV断电/上电操作
高压断电流程
高压断电前防护准备
关闭启动开关 断开蓄电池负
极 等待3分钟
前端
每当连接或断开蓄电池电缆 务必关闭启动
开关 否则会导致控制模块或其它电器元件
损坏
用万用表正极表笔接蓄电池正极 负极表笔
接负极线 此时电压应小于2V。 确保低压
处于真正的下电状态
VOYAH
后端
断开高压动力电池前/后端直流
母线 等待10分钟
执行高压验电 确认无高压输
出
6 September 2024
65

66.

EV power -off/on operation
High voltage power-off process
Protections before HV power-off
Turn off the ignition switch,
disconnect the battery negative
terminal, and wait for 3 minutes
Front end
When connecting or disconnecting the battery
cables, turn off the ignition switch. Otherwise, the
control module or other electrical components may
be damaged
Connect the positive probe to the battery positive
terminal and the negative probe to the negative
terminal. In this case, the voltage should be less
than 2V. (Make sure the low voltage is actually
powered off)
VOYAH
Back end
Disconnect the front/rear DC bus of
the HV battery and wait for 10
minutes
Perform a HV inspection to ensure
that there is no HV output
6 September 2024
66

67.

EV断电/上电操作
高压断电操作-验电
用万用表测量动力电池后部高压端口
DC+ 与 DC- 之间电压小于36V
DC+ 与 接地 之间电压小于36V
DC- 与 接地 之间电压小于36V
用万用表测量动力电池后部高压线束端口
DC+ 与 DC- 之间电压小于36V
VOYAH
6 September 2024
67

68.

EV power -off/on operation
HV power-off - verification of live part
Use a multimeter to measure the rear HV port of
the HV battery
The voltage between DC+ and DC- is less than 36V
The voltage between DC+ and ground is less than 36V
The voltage between DC- and ground is less than 36V
Use a multimeter to measure the rear HV harness port
of the HV battery
The voltage between DC+ and DC- is less than 36V
VOYAH
6 September 2024
68

69.

EV断电/上电操作
高压断电操作-验电
用万用表测量动力电池前部高压端口
DC+ 与 DC- 之间电压小于36V
DC+ 与 接地 之间电压小于36V
DC- 与 接地 之间电压小于36V
用万用表测量动力电池前部高压线束端口
DC+ 与 DC- 之间电压小于36V
VOYAH
6 September 2024
69

70.

EV power -off/on operation
HV power-off - verification of live part
Use a multimeter to measure the front HV port of
the HV battery
The voltage between DC+ and DC- is less than 36V
The voltage between DC+ and ground is less than 36V
The voltage between DC- and ground is less than 36V
Use a multimeter to measure the front HV harness
port of the HV battery
The voltage between DC+ and DC- is less than 36V
VOYAH
6 September 2024
70

71.

EV断电/上电操作
高压断电流程
否
直流母线端子有高压电 静
止待放电完成
否
确认高压系统部件电压低
于36V
动力电池端口有高压电 电
池内部故障 检修高压系统
是
断电操作完成
VOYAH
6 September 2024
71

72.

EV power -off/on operation
High voltage power-off process
No
The DC bus terminal is under HV and shall
be kept stationary until the discharge
finishes
No
Check that the voltage of the HV part is
lower than 36V
If the HV battery port is under high voltage,
it indicates battery internal fault. At this
time, you should check the HV system
Yes
Power off operation completed
VOYAH
6 September 2024
72

73.

EV断电/上电操作
高压上电操作-绝缘检测
使用兆欧表 500V档位 测量高压动力电池前部线束端 DC+/DC- 与车身接地之间的绝缘电阻 大于
标准值
VOYAH
6 September 2024
73

74.

EV power -off/on operation
High voltage power-on operation - insulation test
Use a Megohm meter (500V range) to measure the insulation resistance between the front harness terminal of the
HV battery (DC+/DC-) and the ground of the body, which shall be greater than the standard value
VOYAH
6 September 2024
74

75.

EV断电/上电操作
高压上电操作-绝缘检测
使用兆欧表 500V档位 测量高压动力电池后部线束端 DC+/DC- 与车身接地之间的绝缘电阻 大于
标准值
VOYAH
6 September 2024
75

76.

EV power -off/on operation
High voltage power-on operation - insulation test
Use a Megohm meter (500V range) to measure the insulation resistance between the rear harness (DC+/DC-)
terminal of the HV battery and the ground of the body, which shall be greater than the standard value
VOYAH
6 September 2024
76

77.

EV断电/上电操作
高压上电流程
量取直流母线端子对地电
阻是否大于标准值1.5MΩ
高压系统绝缘故障 检
修高压系统
否
是
连接高压动力电池前/后端
直流母线
连接蓄电池负极电缆
使用诊断仪删除此前存储
的高压系统相关的DTC
VOYAH
上电操作完成
6 September 2024
77

78.

EV power -off/on operation
High voltage power-on process
If an insulation fault occurs to the
Measure whether the resistance of the
DC bus terminal to the ground is
greater than 1.5 MΩ
HV system, check and repair the
HV system
No
Yes
Connect the front/rear DC bus of the
HV battery
Connect the battery negative cable
Remove the previously stored DTCs
related to the HV system with a scan
tool
VOYAH
Power-on operation completed
6 September 2024
78

79.

谢 谢 聆 听
2022年7月
VOYAH
6 September 2024
79

80.

T HANKS FOR LISTENING !
July 2022
VOYAH
6 September 2024
80