This standard specifies the design principles and basic technical requirements for the electrical system of electric and electro-hydraulic steering gear. This standard applies to electric and electro-hydraulic steering gear for marine vessels. This standard does not apply to electric and electro-hydraulic steering gear for inland vessels. GB/T 14547-1993 Electrical system design for electric and electro-hydraulic steering gear for ships GB/T14547-1993 Standard download decompression password: www.bzxz.net

t:Dc 629.12. 014 - 621.31
National Standard of the People's Republic of China
GB/T 14547—93
Electrical system design of electric and electrohydraulicsteering gear in ships
Published on July 31, 1993
Implemented on February 1, 1994
State Technical Supervision Bureau
W.National Standard of the People's Republic of China
Electrical system design of electric and electrobydraulicsteering gear in ships
GB/T 1454793
This standard refers to the International Electrotechnical Commission IEC92-204 publication "Design of Ship Avionics System - Hydraulic Power Steering Devices" (1987 edition). 1 Subject content and scope of application
This standard specifies the design principles and basic technical requirements for the electrical system of electric and electro-hydraulic steering devices. It is not applicable to electric and electro-hydraulic power steering devices of marine ships. This standard is not applicable to electric and electro-hydraulic power steering devices of inland ships. 2 Reference standards
(FB755 Basic technical requirements for rotating electrical machines
China Classification Society: Rules for Classification and Construction of Rigid Seagoing Vessels (1989 Edition) 3 Terms
3.1 Earth power steering equipment
Power and electric
Machinery, energy conversion mechanisms, power equipment of power steering devices and their ancillary equipment and parts that apply torque to the steering bar (such as tiller or steering fan) necessary for driving the ship under normal navigation conditions. 3.2 Auxiliary power steering devices
Equipment other than any part of the steering device that is necessary for driving the ship in the event of failure of the main power steering device, but does not include tiller, steering fan or other similar parts.
3.3 Electric power steering device
Ship steering equipment operated by a motor that applies torque to the steering bar through a mechanical device. 3. 4 Electric hydraulic steering device
A power-operated steering device in which a hydraulic pump driven by an electric motor applies torque to the steering rod through wave pressure and mechanical devices. 3.5 Power equipment of steering device
For electric steering devices, it refers to the electric motor and its supporting electrical equipment; for electric hydraulic steering devices, it refers to the electric motor and its supporting electrical equipment and the connected pump. 3.6 Steering device control system
A set of equipment that transmits steering commands from the cab to the power equipment of the steering device, including a transmitter, a receiver, a hydraulic control recorder and its supporting electric motor, motor controller, pipe system and cable, etc. Approved by the State Bureau of Technical Supervision on July 31, 1993 and implemented on February 1, 1994
W.4. Design principles
CB/T14547-93||t t||4.1 Electric and electric displacement steering devices (hereinafter referred to as steering devices) can be used as power-operated steering devices and auxiliary steering devices. 4.2 The design of the electrical system of the steering device should take into account reliability, maintainability, stability, ergonomics and fail-safe principles. 4.3 The electrical system of the steering device should be designed so that if one of the two steering devices fails, it should not cause the electrical system of the other steering device to fail to work.
In accordance with the relevant provisions of the "Rules for Classification and Construction of Sea-going Steel Ships", when there is no auxiliary steering device and the main steering device contains two or more power equipment, the electrical system of each power equipment should be designed so that if one of the power equipment fails, it should not cause the remaining power equipment to fail to work.
5 Electric motors and their control devices
5.1 Electric motors||tt| |5.1.1 The required characteristics of the motor of the power equipment of the steering device shall be determined according to the starting torque and maximum working torque of the steering device under normal operating conditions. The ratio of the motor's step-out torque to the rated torque shall not be less than 1.6. 5.1.2 The rated value of the motor of the steering device power equipment can be determined according to the intermittent power demand, and its rating shall be determined according to the characteristics of the steering device of the ship installed.
In any case, its rating shall be at least: a. The motor of the electric steering device power equipment shall be S310% as specified in GB755, that is, it shall be at least 53 intermittent cycle working mode and 40% duty cycle:
b. The motor and converter of the electric hydraulic steering device power equipment shall be S625% as specified in GB755, that is, it shall be at least S6 continuous cycle working mode and 25% duty cycle. 5.2 Motor starter
Each motor of the steering device power equipment: A separate starter shall be configured in the engine room. 5.3 The control device of the motor should be able to meet the requirements of frequent power-on and rapid reverse operation, at least 350 times/1. During the frequent rapid reverse operation, when the first power command has not been completed and the second power command comes again, no malfunction should occur. 6 Circuit design
6.1 Power supply of power circuit
6.1.1 The power equipment of each steering device should be directly powered by at least two independent feeders from the main switchboard, but one of them can be powered by the emergency switchboard.
6.1.2 The auxiliary steering device connected to the upper power device can be connected to the circuit that supplies power to the main steering device. 6.1.3 The power supply circuit of the power device should have sufficient capacity to supply power to all motors and electrical appliances connected to it that may need to work simultaneously.
6.1.4 For ships of less than 1600 gross tonnage, if the power-operated auxiliary steering device is not electric, or is driven by an electric motor for other purposes, the main steering device may be powered by a feeder from the main distribution pole. 6.1.5 All ships with a diameter of the tiller bar exceeding 230mm (excluding reinforcement for navigation in ice areas) should be equipped with an alternative power source automatically provided by the emergency power supply or an independent power source installed in the engine room. The alternative power source should be able to start automatically and carry the rated load within 45 seconds after the failure of the main power supply. Its capacity should be sufficient to meet the power equipment of the auxiliary steering device, its control system and the rudder angle indicator. This independent power source is only allowed to be used for the above-mentioned ships. For ships of 10000 gross tonnage and above, the alternative power source should have a capacity of at least 30 minutes of continuous operation, and for other ships at least 10 minutes. 6.2 Control circuit and control system power supply
6.2.1 Each control device for starting and stopping the power equipment motor shall be equipped with its own independent control circuit, which shall be powered by its own power circuit.
WGB/T14547-93
6.2.2 The electrical control system of each steering device operated by the helm shall be powered by its own independent circuit. The independent circuit shall be powered by the power circuit of the corresponding steering device located in the engine room, or directly by the main switchboard or emergency switchboard that supplies power to the power circuit of the corresponding steering device and is adjacent to the power circuit of the corresponding steering device and is located in the same section as it. 6.2.3 For a combined steering device used with a compass, an emergency power supply shall be provided to ensure the normal operation of the compass when the main power supply fails. 6.3 Circuit protection
6.3.1 Each control circuit and power circuit of the steering device shall be equipped with short-circuit protection. 6.3.2 The power supply circuit of the control system of any steering device that can be operated from the helm should not be provided with any other protection except short-circuit protection.
6.3.3 If the power circuit is provided with overcurrent protection, it should not be less than 2 times the full load current of the protected circuit or motor, and an appropriate starting current should be allowed to flow.
6.3.4 All steering devices should be provided with an angle limit switch so that the steering device can be stopped before the rudder stops. The angle limit switch should be synchronized with the steering device itself, rather than with the control of the steering device. 7 Control, reporting and indication
7.1 Starting and stopping of the motor of the power equipment of the steering device 7.1.1 The motor of the power equipment of the steering device should be able to be started and stopped at a certain position in the driving cab and the engine room. The motor starter should be equipped with a device that can isolate any remote start and stop device: 7.1.2 The power equipment of the steering device should be able to be put into operation in the driving cab, should be arranged to be easily switched here, and should be arranged to automatically restart when the power supply is restored after power failure. 7.2 Power equipment reporting control system Www.bzxZ.net
7.2.1 For the main power equipment, power control devices should be installed in the driving cab and the engine room. A transfer switch should be installed between the two control devices to prevent simultaneous operation.
7.2.2 For auxiliary steering devices, steering control devices are to be provided in the steering room and can be operated from the navigation bridge and are independent of the control system of the steering device.
7.2.3 If the main steering gear contains two or more identical power equipment and no auxiliary steering device is provided in accordance with the relevant provisions of the Rules for Classification and Construction of Sea-going Steel Ships, two independent steering control systems are to be provided, both of which can be operated from the navigation bridge and the steering gear room. However, this does not require the provision of two steering handwheels or two steering handles. If the steering control system contains a hydraulic remote control transmission device, it is not necessary to install a second independent control system except for ships of 10,000 gross tonnage and above, chemical tankers or gas tankers. 7.2.4 The steering device control system provided in accordance with the provisions of 7.2.1, 7.2.2 and 7.2.3 is to be capable of being put into operation from a suitable position in the navigation bridge.
7.2.5 A disconnect device is to be provided in the steering gear compartment to disconnect the control system of the steering device operated from the navigation bridge from the steering device it serves.
7.3 Alarms and indications
7.3.1 Indicators indicating the operation of the steering device motors, the power location and the power mode indicators are to be provided in the navigation bridge and at appropriate main engine control positions.
7.3.2 Overload alarm devices are to be provided for the motors of all steering device power equipment. 7.3.3 When three-phase power supply is adopted, alarm panels are to be provided to indicate the failure of any phase. 7.3.4 When power failure occurs in any steering device power equipment, an alarm is to be issued. 7.3.5 When the power supply of the control system of the steering device fails, an alarm is to be issued. 7.3.6 Each hydraulic oil tank of the electric hydraulic control device is to be provided with a low oil level alarm arm device so as to give an indication of hydraulic oil leakage as far as possible.
7.3.7 The control device shall be equipped with an automatic control instrument failure alarm device and an operation indicator. 7.3.8 When the rudder angle indication system loses power, it shall be able to send an alarm. 3
W.bzsosocomGB/T 14547—93
7, 3.9 The alarm devices specified in 7.3.2 to 7.3.8 shall all be sound and light alarm devices, and shall all be installed in the navigation room. The alarm devices specified in 7.3.2, 7.3.3.7.3.6.7.3.7 and 7.3.8 shall also be installed in an obvious place in the engine room or in the control room of the normal control main engine.
7.4 Rudder angle indication
There shall be a rudder angle position indication in the navigation room. The power angle indication system should be independent of the power system and control system of the power steering device. If an emergency power supply is provided, it should be powered by the emergency switchboard or the independent alternative power supply specified in Article 6.1.5. The location of the rudder angle should be distinguishable in the power engine room:
8 System layout
The two sets of cabinets and the power circuit, the steering device control system and its associated components should be arranged as far away as possible. The corresponding cables should be arranged according to the number of paths and should be separated as much as possible in the vertical and horizontal directions within the entire cable length range. 9 Communication between the navigation cabin and the steering gear cabin
Independent communication equipment should be installed between the navigation cabin and the power engine room. If it is an electrical communication equipment, it should be powered by the emergency switchboard, or a direct command telephone powered by a voice telephone or a battery. Additional remarks:
This standard is proposed by China State Shipbuilding Corporation. This standard is issued by the 704th Institute of the Seventh Research Institute of China State Shipbuilding Corporation. This standard was drafted by the 704th Institute of the 7th Research Institute of China State Shipbuilding Corporation, and the main drafter of this standard was Xia Nan.
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