This standard specifies the safety technical requirements for the design, installation, use and maintenance of cage hoisting signal systems. This standard applies to the design, installation, use and maintenance of cage hoisting signal systems. GB 16541-1996 Safety Technical Requirements for Shaft Cage Hoisting Signal Systems GB16541-1996 Standard Download Decompression Password: www.bzxz.net

GB 16541-1996
To ensure the safety of shaft hoisting, this standard specifies the safety technical requirements for the design, installation, use and maintenance of cage hoisting signal systems.
This standard is proposed and managed by the Ministry of Labor of the People's Republic of China. The responsible drafting unit of this standard: Safety and Environmental Protection Research Institute of the Ministry of Metallurgical Industry. The participating drafting units of this standard: Changshu Coal Mine Shaft Special Equipment Factory, Bajiazi Lead and Zinc Mine Electronic Equipment Factory. The main drafters of this standard: Zhang Zhongqi, Li Xiaofei, Zong Jiankang, Pang Qizhi, Huang Debin, Wang Honghan, Xiaoguang, Zhou Hao, Ni Shouqiang. 293
1 Scope
National Standard of the People's Republic of China
Safety technical requirements for shaftcage hoisting signal system
Safety technical requirements for shaftcage hoisting signal system
GB16541-1996
This standard specifies the safety technical requirements for the design, installation, use and maintenance of the shaftcage hoisting signal system. This standard applies to the design, installation, use and maintenance of the shaftcage hoisting signal system. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB1251.189 Danger signals in the workplace Danger auditory signals GB3836.4--83 Explosion-proof electrical equipment for explosive atmospheres Intrinsically safe circuits and electrical equipment "i" GB12173-90 General electrical equipment for mining GB12800-91 Acoustic emergency evacuation auditory signals GB14778-93 General rules for safety color light
GB16424-1996 Safety regulations for metal and non-metal underground mines 3 Definitions
This standard adopts the following definitions.
3.1 Signal
In the hoisting system, the agreed information transmitted by electrical equipment in the form of sound, light, digital display, etc. 3.2 Level directions signal Level directions signal Specifies the signal of the level to which the cage is moving. 3.3 Hoisting classifications signal Indicates different types of signals such as hoisting people and objects. 3.4 Examining and repairing signal: A signal used when inspecting and repairing equipment or devices. 3.5 Operating signal: A signal that requires the elevator driver to start, stop, or operate the tank. 3.6 Fault signal: A signal that requires the elevator driver to stop or take other safety measures when a fault or accident occurs during the operation of the elevator system. 3.7 Spare signal: A signal used in special circumstances (such as when the signal system cannot work according to normal procedures due to various reasons). Approved by the State Bureau of Technical Supervision on September 25, 1996 294
Implemented on March 1, 1997
4 Technical requirements
4.1 Technical requirements for signals
GB16541-1996
4.1.1 The bottom of the well, the middle sections (horizontal) of the well, the parallel ports and the hoisting room of the cage hoisting system shall be connected with each other by sound and light signals or digital display signals, and a direct telephone or a message board shall be installed. 4.1.2 The signal system shall be equipped with the following signals: work execution signal; middle section (horizontal) indication signal; hoisting category signal: maintenance signal; accident signal.
The work execution signal shall be a sound and light signal or a digital display signal, the accident signal shall be a sound and light signal, and the general indication signal may be a light signal or a digital display signal.
4.1.3 When sound signals are used to distinguish between lifting categories, the following provisions shall be met: they shall be clearly audible, distinguishable and have clear meanings; the sound level, frequency characteristics, instantaneous distribution of sound level, instantaneous distribution of frequency and listening test can be determined in accordance with the relevant provisions of GB1251.1;
Stop, one sound;
Go up: two sounds when lifting people; one long sound and one short sound when lifting objects; Go down: two short sounds and one long sound when lifting people; two long sounds and one short sound when lifting objects; the duration of the sound shall be determined according to the instantaneous sound level diagram shown in Table 1; - "Three-pulse" signals shall not be used\,
Maintenance, accident handling and backup signals shall be determined by the mining enterprise and approved by the mine manager in charge; when there are two sets of lifting devices in the same shaft, their respective sound signals shall have obviously different characteristics. 1) The "three-pulse" signal is an emergency evacuation signal for personnel and cannot be used as a general contact signal. The conditions for using the "three-pulse" signal shall comply with the provisions of GB12800.
GB 16541--1996
Table: a=2.0(1±10%)s on;
b=0.5(1±10%)s off;
c≥2.0(1±10%)s off;
d-4.0(1±10%)s on;
f=0.5(1±10%)s on;
g≥2.0(1±10%)s off;
h≥2.0(1±10%)s off;
j≥2.0(1±10%)s
k≥2.0(1±10%) s Off.
Signal period: T≥6.5(1±10%)s; T2≥7.0(1±10%) $;
T3≥8. 0(1±10%) s;
T4≥11.5(1±10%) $;
Ts≥4. 0(1±10%) s. Www.bzxZ.net
GB16541-1996
4.1.4 The start-up signals of each middle section (horizontal) in the well shall be forwarded to the hoist driver by the main signal station at the wellhead, and the start-up signal shall have light retention or digital retention; the light retention signal or digital retention signal for lifting people, lifting objects and maintenance shall be set separately. 4.1.5 The stop signal shall be a direct signal, that is, each signal sending point can directly send a stop signal to the hoist room. After the stop signal is sent, the start-up light or digital retention signal shall be eliminated. 4.1.6 The middle section (horizontal) indication signal shall be a light retention signal or a digital display signal. 4.1.7 The signal system shall be equipped with an indicator light for inspecting the well casing or handling accidents, and the indicator light shall remain displayed during the entire process of well casing inspection or accident handling. Devices or well casing induction telephones for maintenance personnel to send start and stop signals shall be laid along the well wall. 4.1.8 Each signal sending point can directly send an accident signal to the hoist room. After the accident signal is sent, the signal The sending point and the hoist room should have lights on; the elimination of accident signals should be carried out by the hoist room. 4.1.9 The retention time of each retention signal should be consistent with the work execution time. 4.1.10 The color selection and use method of light signals and digital display signals should comply with the relevant provisions of GB14778. 4.2 Interlocking technical requirements
4.2.1 When using double-layer or multi-layer tank cages to lift personnel and personnel enter and exit each layer at the same time, each layer should be connected to the wellhead main signal station with an effective signal system at the tank stop point or the access platform, and should be locked. Only after the wellhead signal worker confirms that all personnel on each layer of the cage have entered and exited, can the start-up signal be issued.
4.2.2 The control circuit of the signal device and the hoist should be locked. The hoist can only be started after the wellhead main signal station issues a start-up signal. 4.2.3 The signals of each middle section (horizontal) should be locked. At the same time, only one middle section (horizontal) is allowed to send a working signal to the wellhead main signal station. Only when the middle section (horizontal) where the cage is located sends a start signal, can the main signal station at the wellhead send a start signal to the hoist driver. 4.2.4 The signals for lifting people, lifting objects and maintenance should be interlocked. 4.2.5 Under the following circumstances, each middle section (horizontal) underground can directly send a signal to the hoist driver, but the hoist driver can only obey the command of a signal worker in a certain middle section (horizontal) after the main signal station at the wellhead transfers the signal to the hoist room: 1. Lifting ore (coal) or waste rock (gravel): lifting of a single cage;
—Automated lifting system with up and down signal interlocking. 4.2.6 The safety doors and rocking platforms of each middle section (horizontal) underground and the wellhead should be interlocked with the lifting signal. The start signal can only be sent after the safety door is closed and the rocking platform is lifted.
4.2.7 When the tank cage hoist is equipped with a tank seat or tank support gate, a tank seat or tank support gate signal indicator light should be set, and a locking device should be installed. Only after the tank seat or tank support gate is opened can the start signal be issued. 4.3 Signal equipment and cables
GB16541-1996
4.3.1The materials and equipment used in the signal system must comply with the relevant national standards and industry standards and have a certificate of conformity from the supplier.
4.3.2In addition to the commonly used signal devices, the signal system should also be equipped with equipment signal devices. 4.3.3The technical requirements, test methods and inspection procedures of the electrical equipment of the signal system should comply with the relevant provisions of GB12173. 4.3.4The underground signal system should meet the requirements of moisture resistance, corrosion resistance and anti-interference. In places with explosion hazards, the equipment and devices of the signal system should comply with the relevant provisions of GB3836.4.
4.3.5The signal system should be equipped with a dedicated power transformer and power indicator light. The power supply voltage: coal mines should not exceed 127V, and other mines should not exceed 127V. Other loads should not be tapped on the direct power supply line of the signal device. 4.3.6It is strictly forbidden to use the earth as a loop for underground direct telephone lines. 4.3.7Aluminum core cables shall not be used for signal cables. Signal cables for fixed laying should be armored cables, non-flammable rubber-sheathed cables or mining plastic cables; for non-fixed laying, non-flammable rubber-sheathed cables should be used. 4.3.8 Signal cables shall not be used for other purposes. 4.3.9 The laying of signal cables shall comply with the following provisions: - Cables in the well casing shall be laid with clamps, clamps or other clamping devices. The clamping device shall be able to bear the weight of the cable and shall not damage the cable;
- The distance between cable hanging points: shall not exceed 6m in the well casing and shall not exceed 3m in other places; signal cables shall be hung on both sides of the well and lane separately from power cables. If conditions permit: in the well casing, they shall be laid 0.3m away from the power cable; in the lane, they shall be located more than 0.1m above the power cable. 4.3.10 Signal cables in the shaft shall not have joints. If joints are required because the well casing is too deep, they shall be located in the middle (horizontal) lane for inspection and maintenance.
5 Usage requirements
5.1 The signal worker operating procedures, job responsibility system and shift system should be formulated and posted at the signal sending or receiving location, clearly indicating the type, purpose and method of use of the signal.
5.2 At the signal sending point, a full-time signal worker should be appointed to be responsible for the transmission and reception of the signal. The signal worker should be a person who has passed the training and assessment. 5.3 At each signal sending point, only one signal worker can be responsible for sending signals per shift. 5.4 Each signal sending point should be soundproofed to prevent the signal worker from being disturbed by environmental noise. 5.5 When a signal system fails, a backup signal device should be used and reported to the on-duty maintenance personnel in a timely manner. The backup signal device should be tested regularly to ensure reliability.
5.6 The insulation and external inspection of the signal cable should be carried out at least once a quarter. If a problem is found, a special person should be assigned to deal with it within a time limit, and the inspection and handling results should be recorded in a special record book. 298
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