The assessment outline for the theoretical knowledge of the electrical installation and repair personnel of hoisting machinery

Crane electrical installation and repair personnel must have a sufficient understanding of the basic professional knowledge, and also have a sufficient understanding of the electrical of hoisting machinery. And to carry out the assessment of theoretical knowledge. The editor has compiled the theoretical knowledge assessment range of electrical installation and repair personnel for your reference and study.

E1.1 Basic knowledge of electrical engineering, basic concepts of current, voltage, resistance, Ohm's law, electromagnetic induction, electrical work and electrical power.

E1.2 Knowledge of commonly used electrical equipment (devices)

Including relevant knowledge of transformers, motors, controllers (linkages), contactors, relays, circuit breakers, fuses, etc.

E1.3 How to use common electrical measuring instruments

Including the use of multimeter, clamp ammeter, insulation resistance tester, ground resistance tester, etc.

E1.4 The basic composition (structure, transmission, electrical, control, etc.), principle, purpose, working characteristics and requirements of the working environment of lifting machinery.

E1.5 The main parameters of hoisting machinery.

E1.6 The basic circuit composition, driving and control principles of hoisting machinery, the functions and requirements of main electrical components, and new technologies such as frequency conversion speed regulation, microcomputer control and remote control.

E1.7 Functions and requirements of safety protection devices for hoisting machinery

Including lifting weight limiter, lifting torque limiter, lifting height limiter, stroke limiter (including limit switch), overspeed protection device, electrical interlock protection device, device to prevent the boom from tilting back, and limit torque device , Anti-wind and anti-skid device, wind speed alarm, rotation limiter, anti-collision device, boarding signal button, conductive slide line protection measures, anti-electric shock device, hanging cage door and landing door or the connection of parking railing and cage ( Interlocking device, emergency exit door safety switch on the top of the closed cage, electrical switch for anti-fall safety device, safety rope and rope break protection device, manual safety device, prevention or vehicle entry device, entrance door and fence connection ( Interlocking functions and requirements of safety inspection device, overtravel limiter, parking in place detection device, synchronous operation protection measures of both ends of the chain, anti-overlap automatic detection device, etc.

E1.8 Functions and requirements of electrical protection systems for hoisting machinery

Including short circuit protection, zero protection, loss of voltage protection, fault (open) phase protection, overspeed protection, overload protection, automatic speed change device, electrical interlock, emergency power off switch, electrical insulation, grounding protection and other functions and requirements.

E1.9 Lighting and signals.

E1.10 Requirements for power supply, electrical wiring and protection of hoisting machinery.

E1.11 Explosion-proof electrical requirements in explosion-proof hoisting machinery.

E1.12 Electrical safety measures and technical requirements for hoisting machinery such as lightning protection, anti-static, moisture-proof, dust-proof, anti-corrosion, and anti-high temperature.

E2 safety knowledge

E2.1 Responsibilities of installation and repair operators.

E2.2 Safety operating procedures for installation and repair operations.

E2.3 Correct use of labor protection equipment.

E2.5 Knowledge of working at heights, environmental protection, electricity safety, and fire fighting.

E2.6 Electrical equipment maintenance safety technology and inspection requirements.

E2.7 Identification of common electrical faults (including electrical circuits and electrical equipment) and various dangerous working conditions.

E2.8 Disposal of unexpected situations in electrical wiring and electrical equipment.

E2.9 Identification of safety signs.

E2.10 Emergency measures for emergency installation and repair operations

Including the analysis of multiple accident cases such as electric shock, fire, collapse, squeezing, and falling, and putting forward emergency measures such as personnel protection, emergency rescue, emergency treatment and prevention measures.

E3 regulatory knowledge

E3.1 "Special Equipment Safety Supervision Regulations".

E3.2 "Safety Supervision Regulations on Lifting Machinery".

E3.3 "Measures for the Supervision and Administration of Special Equipment Operators".

E3.4 "Regulations for the Assessment of Special Equipment Operators."

E3.5 "Safety Technical Supervision Regulations for Lifting Machinery".

E3.6 "Limiting Regulations for Installation, Modification and Repair of Lifting Machinery".

E3.7 "Regulations for the Supervision and Inspection of Major Repairs in the Installation and Renovation of Lifting Machinery".

E3.8 "Regulations on the Use of Lifting Machinery".

E3.9 " Regulations for Periodic Inspection of Lifting Appliances ".

E3.10 "Safety Management of Lifting Machinery and Evaluation Outline for Operators".

E3.11 Other relevant specifications and corresponding standards.

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