GB 16541-2010Shaft cage hoisting signal system - safety technical requirements (English PDF)

4.1 Signal requirements

4.1.1 bottom cage hoisting system, underground each middle (horizontal), wellheads and hoist room, etc., between them should be audible or digital signal phase China Unicom, and the installation of direct telephone or mouthpiece.

4.1.2 The signaling system should be provided with work performing signal, the middle (horizontal) indication signal to enhance the signal category, maintenance and accident signal signal. Work was performing signal should sound and light signals or signal number, accident signal should sound and light signals, general indication signal may be light or signal Digital signal.

4.1.3 using sound to enhance the difference signal category, should meet the following requirements.

--- With a clear audibility, distinguish for clarity and meaning.

--- Sound level, frequency, instantaneous sound level distribution, frequency distribution, and listen to the instantaneous inspection should be consistent with GB/T 1251.1 relevant Provisions.

--- Parking. loudly.

--- Uplink. When people mention, the second tone; when extract, the sound of a long, one short blast.

--- Line. When people mention, two short blasts, one prolonged blast; when extract, two prolonged blasts and one short blast.

--- Sound duration is determined by the instantaneous sound level diagram shown in Table 1.

--- Not a "three-pulse" signal.

--- Maintenance, incident handling and custom backup signal by the mining enterprises, and approval by the competent mine.

--- Same wellbore when there are two lifting means, each acoustic signal should have significantly different characteristics.

Note. The "three-pulse" signal is a staff emergency evacuation signal, the signal can not be used for general contact.

4.1.4 Each downhole middle (horizontal) drive signal, shall be forwarded to the wellhead total signal station hoist driver. Drive signal lights should be retained or Digital reserved. Mention people, extract and repair lights retention signal or digital signal retention should be set.

4.2 Interlock Requirements

4.2.1 The use of two or more layers cage hoisting personnel and personnel in and out of the layers simultaneously, each layer should be in the tank to stop access point or internet have imposed Signaling system effective contact wellhead total signal station and shall be closed, only the signal at the wellhead workers confirm the cage all the layers of personnel access has been completed Only issue driving signal.

4.2.2 hoist signal devices and control loops should be closed, only the total signal at the wellhead station issued after driving signal hoist to start.

4.2.3 should lock between each middle (horizontal) signal, the same time allowing only one in the middle (horizontal) to issue a signal to the wellhead total station signal. Only when the middle (horizontal) drive cage where the signal emitted, the total signal wellhead station in order to issue driving signal to the driver hoist.

4.2.4 mention, should the latch between the extract and repair the three signals.

4.2.5 Under the following conditions each downhole middle (horizontal) can send a signal directly to hoist the driver, but it should convert the signal to a signal station at the wellhead total After lifting room, hoist the driver to listen to a middle (horizontal) signal workers command.

--- Enhance the ore or waste rock;

--- Single cage hoisting;

--- Surface and underground interlock signal automated lift system.

4.2.6 wellhead and downhole each middle (horizontal) safety door and shake Taiwan and upgrading signal should be blocked. Only the safety door is closed, after the lift cradle, Before issuing driving signal.

4.2.7 cage hoisting seat or with a cage brake tank, the tank should be set up base or cage brake signal lights, and should set the locking device. Only in the tank After the seat or supporting cage gate open, in order to issue driving signal.

4.3 Signaling equipment and cabling requirements

4.3.1 The signaling system used materials and equipment shall comply with the relevant national standards and industry standards.

4.3.2 The signaling system should be set in addition to common signaling devices, it should also set up a backup signaling device. Technical Requirements

4.3.3 Electrical signaling equipment, test methods and test procedures shall be consistent with the relevant provisions of GB/T 12173 of.

4.3.4 Underground signaling system shall comply with moisture, corrosion and immunity requirements. There explosive atmosphere, equipment and means of signaling system should Comply with the relevant provisions of GB 3836.4.

4.3.5 The signaling system should be set for power transformers and power indicator, power supply voltage should not exceed 127V. Direct signaling devices The supply line should tap other loads.

4.3.6 Underground direct telephone line, non-use of the earth as a loop.

4.3.7 Signal cable should be used armored cable, do not apply for other purposes.

4.3.8 Signal cable laying shall meet the following requirements.

--- Clips, clamps, or other holding means laying the cable, the cable should be able to bear the weight, and should not damage the cable sheath;

--- Cable suspension point spacing. the wellbore should not exceed 6m, other locations should not exceed 1.5m;

--- Signal cables and power cables should be separately hung on both sides of the roadway. If subject to conditions, should be laid within the wellbore from the electrical power Local cable 0.3m outside in the roadway should be laid on top of the power cable of 0.1m over the place.

4.3.9 wellbore signal cables should not have joints. If the result of deep wellbore need to set up the joint, the joint should be located in the middle (horizontal) tunnel Inside, in order to repair and maintenance.

5.1 shaft cage hoisting signal system used should be consistent with GB 16423 and "Coal Mine Safety Regulations" (2006 edition) of the relevant requirements. Send or receive signals should be posted

5.2 point signal work rules, job responsibility and shift system, express the signal type, use And methods of use and implementation. Transmitting and receiving signals by full-time workers responsible for