电气安全知识试题,,,,(国外英文资料).docVIP

电气安全知识试题,,,,(国外英文资料) Fill in the blanks Please fill in the following horizontal lines with the correct content. 1., the body touches the charged body and forms the current path, causing damage to the human body known as. 2. electrical injuries are localized injuries caused by thermal effects, chemical effects, and mechanical effects of electricity, such as electrical burns, electrical branding, and skin metallization. 3., electric shock refers to the flow of electricity caused by the internal organs of human injury, serious when it can cause human shock and even death. 4. the direct contact between the human body and the charged body can be divided into. 5. when a human body contacts a phase of a charged body in a three-phase electric network, the current flows through the body into the earth. 6. when the human body is in contact with a two phase conductor in a charged device or circuit, the current flows from a phase conductor through the body to another conductor to form a closed loop. 7. contact voltage is the electric potential difference between the touch of the hand and the foot caused by the contact of the outer shell of the electric equipment. 8. electric safety appliances can be divided into two categories according to their basic functions. The 9. appliance is a safety device for preventing a worker from direct electric shock. It is divided into two kinds of basic safety appliances and auxiliary safety appliances. 10. appliances are those that can withstand the working voltage of the equipment for a long time, and can guarantee the safety of the staff when the internal voltage is generated at the voltage level. 11., the insulation strength of equipment is low, can not withstand the live equipment or line voltage, can only strengthen the basic safety equipment protection role. However, auxiliary safety work can be used as a tool on low-voltage live equipment. 12. signs can be divided into three categories according to their use and warning. 13. ambulance pe