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GY/T 208-2005: Radio and TV tower maintenance specifications for power supply, lightning protection, water supply and waste water treatment, ventilation and fire fighting systems+
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Radio and TV tower maintenance specifications for power supply, lightning protection, water supply and waste water treatment, ventilation and fire fighting systems+
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GY/T 208-2005
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Basic data | Standard ID | GY/T 208-2005 (GY/T208-2005) | | Description (Translated English) | Radio and TV tower maintenance specifications for power supply, lightning protection, water supply and waste water treatment, ventilation and fire fighting systems+ | | Sector / Industry | Radio, Film & TV Industry Standard (Recommended) | | Classification of Chinese Standard | M70 | | Classification of International Standard | 33.160 | | Word Count Estimation | 18,111 | | Date of Issue | 2005-05-08 | | Date of Implementation | 2005-06-01 | | Summary | This standard specifies the radio and television tower power supply, lightning protection, drainage, ventilation and fire protection system operation and maintenance procedures. This standard applies to power towers, lightning protection, drainage, ventilation and fire protection facilities operation and maintenance. | GY/T 208-2005: Radio and TV tower maintenance specifications for power supply, lightning protection, water supply and waste water treatment, ventilation and fire fighting systems+
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Radio and TV tower maintenance specifications for power supply, lightning protection, water supply and waste water treatment, ventilation and fire fighting systems
GY
Central Republic Radio, Film and Television
Radio and television tower power supply, lightning protection, water supply and drainage,
Ventilation and fire protection system operation and maintenance procedures
Radio and TV tower maintenance specifications for power supply,
lightning protection, water supply and waste water treatment,
ventilation and fire fighting systems
Shi 2.2005-06-01 Real 005-05-08
China National Radio, Film and Television Administration issued standard cloth
Contents
Foreword ... II
1 Scope ... 1
2 Normative references ... 1
3 Power supply system ... 1
4 Lightning protection system ... 7
5 Water supply and drainage system ... 8
6 Ventilation and air conditioning system ... 10
7 Fire protection system ... 11
References ... 15
Foreword
The radio and television tower is a super-high special building, which is the hub of radio and television transmission and transmission. It is responsible for television, FM radio, microwave, and communication.
Information and other services, some still integrate tourism and tourism as a whole, are extremely important radio and television facilities. China has a considerable number of towers in the past 10 years
Completed and put into operation, but in operation and maintenance, there is not a uniform maintenance standard in various places, and the quality of maintenance is difficult to guarantee. To ensure wide
The broadcast television tower runs safely to protect equipment safety and personal safety, so that it has rules to follow. This standard is specially formulated.
In China, most of the radio and television towers have been built and put into operation in the past ten years.
The surface has not met the requirements of the current regulations. It is recommended that after the implementation of this standard, conditional tower units should be gradually rectified to ensure high tower safety.
Fully reliable operation.
This standard is under the jurisdiction of the National Radio and Television Standardization Technical Committee.
This standard was drafted. State Administration of Radio, Film and Television Administration of Radio Station, China Radio, Film, Television Design and Research Institute.
The main drafters of this standard. Zhang Xiaoliang, Guo Weiyue, Gao Ruilai, Gao Lianbo, Guan Weiji, Zhang Qiaomei, Xiang Rong, and Xu Wenxiang.
Radio and television tower power supply, lightning protection, water supply and drainage,
Ventilation and fire protection system operation and maintenance procedures
1 Scope
This standard specifies the operation and maintenance of the power supply, lightning protection, water supply and drainage, ventilation, and fire protection systems of radio and television towers (hereinafter referred to as towers).
procedure.
This standard applies to the operation and maintenance of power supply, lightning protection, water supply and drainage, ventilation and fire protection facilities for high towers.
2 Normative references
The clauses in the following documents have become the clauses of this standard after being referenced. For dated references, all subsequent documents
The amendments (excluding the content of errata) or the revised versions are not applicable to this standard, however, all parties that reach an agreement based on this standard are encouraged
Investigate whether the latest version of these files is available. For undated references, the latest version applies to this standard.
GB/T 1O228 Dry-type transformer technical parameters and requirements
GB/T 13869-1992 Electrical safety guidelines
GB 14050-1993 System grounding type and safety technical requirements
GB 14821.1-1993 Electric shock protection of electrical installations in buildings
DL-408-1991 Electric Power Industry Safe Working Rules
3 Power supply system
3.1 General provisions
3.1.1 Before the electrical equipment is put into operation, a high-power tower shall establish and improve the power consumption management mechanism, according to the voltage level and power capacity of the electrical equipment.
And the specific conditions of electrical equipment are equipped with electrical equipment operation, maintenance, repair and maintenance professionals.
3.1.2 Electrical professionals of high towers shall comply with the requirements of local electric power industry and labor bureau on the requirements for on-site electrical workers.
Documents, holding a post.
3.1.3 High towers shall establish the operation, maintenance, and overhaul of electrical equipment in accordance with the provisions of this standard and relevant regulations, and in accordance with the specific conditions of the unit.
And test system; do a good job of safety technical training for electrical staff and improve the level of operation management. Responsible persons at all levels shall implement this standard
Monitoring and inspection of the situation.
3.1.4 The tower's electrical department should pay attention to and improve the operation and management of electrical equipment to ensure the integrity of the equipment. Realization of power system
The system is safe, reasonable and economical.
3.1.5 Tall towers shall combine the characteristics of the season, the characteristics of the safety broadcast work of the unit and relevant requirements, and organize the electrical staff to make advances in electrical equipment.
Conduct safety inspections, strengthen equipment management, and implement various accident prevention measures.
3.1.6 The selection of electrical equipment for high towers should meet the requirements of relevant national standards and industry standards. And should choose oil-free products.
3.2 Operation and Maintenance Management of Substations
3.2.1 Operation and maintenance management system of substations
The substation (distribution) power station shall establish the following operation and maintenance management system.
-Duty system;
-The transfer system;
-Inspection system;
-Equipment maintenance management system;
-Technical training system;
-Operating procedures;
-Power system dispatch management system;
-Emergency plan implementation system;
-Site environmental management system;
-Relevant systems that need to be developed according to specific circumstances.
3.2.2 Technical Management of Substations
3.2.2.1 Transformer (distribution) substations shall comply with the electrical safety work regulations, electrical engineering installation regulations, and electrical
Equipment operation management regulations, and formulate field work regulations in accordance with specific conditions, and implement them carefully.
3.2.2.2 The substation (distribution) substation shall have the following technical management data according to the needs of on-site production.
3.2.2.2.1 Drawings
-Primary system wiring diagram;
-Secondary wiring diagram of relay protection and automatic equipment;
-Electricity system diagram of substations (including accident lighting systems);
-DC power system diagram;
-Level and section views of substations (distribution) (including power distribution equipment and main equipment layout);
-Vertical cable trunking diagram (including use, path, section, model);
-Completion plans for concealed works;
-Plan of power supply (indicate total capacity of load point) and diagram of power distribution system.
3.2.2.2.2 Information
-Each (group) equipment in the substation (distribution) power station should establish equipment files and be managed by a special person;
-The contents of the equipment file include. manufacturer's equipment manual, equipment card, product qualification certificate when the equipment leaves the factory, test report
Sheet and insulation analysis appraisal, maintenance record, defect record, dispatch, order, operation record book, operation work record (value
(Shift log), equipment and system operation records, calibration data for relay protection, etc.
3.2.2.3 Utensil and equipment
The following appliances and equipment shall be provided in the transformer (distribution) power station.
-Various safety appliances, temporary ground wires, various safety signs and other commonly used tools;
-Commonly used portable meters (including insulation shakers, clamp ammeters, voltmeters, multimeters, DC bridges, thermometers, etc.)
-Portable emergency lights, flashlights;
-- Fire equipment;
-First aid kit.
3.2.3 Inspection of substation (distribution) equipment
3.2.3.1 The substation (distribution) substation shall arrange inspection work according to the requirements of the inspection system. For newly invested or overhauled equipment
During the trial operation phase (usually 72h), inspections should be strengthened, and no abnormalities can be confirmed before inspections can be carried out according to the normal inspection cycle.
3.2.3.2 When inspecting the equipment, carefully observe the observation by the staff on duty and the necessary instrumental assistance (infrared thermometer, etc.).
Analysis. When abnormal phenomena are found, they should be handled in a timely manner and records should be made. Major abnormal phenomena shall be reported to the superior or relevant departments in a timely manner.
3.2.4 Cleaning (distribution) of substation (distribution) electric equipment cleaning inspection and preventive test
3.2.4.1 Substation (distribution) substations shall be cleaned and inspected at least once a year.
3.2.4.2 The transformer (distribution) substation's high-voltage transformer (distribution) electrical installation equipment shall arrange preventive tests in accordance with relevant requirements.
3.2.5 Operation (maintenance) and accident handling of high-voltage transformer (distribution) electrical installations in transformer (distribution) substations
3.2.5.1 When an abnormal situation occurs in the high-voltage transformer (distribution) electrical device during operation, the watchkeeper shall quickly and correctly judge and deal with it, and report to
Power supply authority report. Any abnormality in the equipment dispatched by the power supply department should be reported to the dispatcher on duty, such as threatening personal safety
When the equipment or equipment is running safely, it should be handled first, and then report to the relevant departments and leaders immediately.
3.2.5.2 When the circuit breaker is off, test delivery is not allowed. The cause of the failure must be found out, and the test delivery can only be performed after the failure is eliminated.
3.3 Power transformer operation and maintenance
3.3.1 Transformer operation and maintenance
3.3.1.1 The routine inspection of transformers generally includes the following.
-Whether the sound and temperature of the transformer are normal;
-Lead joints, cables, and bus bars should be free of overheating;
-Whether the epoxy resin layer of the dry-type transformer is intact without cracks or damage;
-The doors, windows and lighting of the transformer room should be intact. The house is not leaking;
-Other items that should be checked in the field regulations according to the structural characteristics of the transformer.
3.3.1.2 The periodic inspection period of the transformer can be determined in the field regulations according to the specific conditions. The periodic inspection should include the following items.
-There should be no abnormal heat generation on the shell and box edges;
-The grounding of all parts should be intact, and the grounding current of the iron core and the clamp should be measured if necessary;
-Various signs should be complete and obvious;
-Various protection devices should be complete and good;
-All thermometers should be within the calibration period, and the over-temperature signal should be correct and reliable;
-Fire protection facilities should be complete and intact;
-The indoor transformer ventilation equipment should be intact.
3.3.1.3 The standby transformer in operation shall be ready for operation at any time. It should be charged regularly during long-term outage.
The installation should be put into operation at the same time.
3.3.1.4 Before the transformer is put into operation for the first time, it should be operated without load for 24 hours, and it can be operated with load only after normal operation.
3.3.1.5 The transformer has been stopped for one year or more. When it is ready to be put into operation, it should be overdue test.
3.3.1.6 During the shutdown and storage of dry-type transformers, insulation shall be protected from moisture.
3.3.2 Transformer abnormality and accident handling
3.3.2.1 When the duty officer finds an abnormal phenomenon during the operation of the transformer, he should take measures to deal with it as soon as possible, and report it to the superior and take notes
record.
3.3.2.2 Dealing with transformer tripping and fire.
3.3.2.2.1 After the transformer trips, the cause should be found out immediately. If comprehensive judgment proves that the transformer trip is not caused by an internal fault,
It can be put into operation again; if the transformer has symptoms of internal faults, it should be further checked.
3.3.2.2.2 When the transformer catches fire, immediately disconnect the power supply, turn off the cooling device, and take prompt fire extinguishing measures to prevent the fire from spreading.
3.3.3 Maintenance of transformer
Comprehensively analyze the following factors to determine whether the transformer in operation needs maintenance.
-Maintenance intervals and items recommended by the power transformer maintenance process guidelines;
-Defects in operation and their severity.
3.4 Operation and Maintenance of High Voltage Circuit Breaker
3.4.1 General requirements
3.4.1.1 The circuit breaker shall have the manufacturer's nameplate marked with basic parameters and other contents. The basic parameters of the circuit breaker should meet the operating conditions of the installation site
And leave a proper margin, such as. the rated short-circuit breaking current of the product should be greater than the maximum short-circuit current at the installation site.
3.4.1.2 The opening and closing indicators of circuit breakers shall be easy to observe and indicate correctly.
3.4.1.3 The grounding metal case of the circuit breaker shall have an obvious grounding mark, and the grounding bolt shall not be less than M 12 and be in good contact.
3.4.1.4 There shall be measures to monitor the operating temperature status at the connection of the circuit breaker terminal board or other necessary places, such as temperature display wax.
3.4.1.5 The operating mechanism box (except inside the switch cabinet) of each circuit breaker shall have a running number and name.
3.4.1.6 The corresponding live parts exposed on the circuit breaker shall have obvious phase paint.
3.4.2 Operation, monitoring, maintenance and operation of circuit breakers
3.4.2.1 Inspection of circuit breaker operation
3.4.2.1.1 The high-voltage circuit breakers in operation and in the standby state shall be inspected regularly. Normal operation inspection can be changed with
The high-voltage power distribution device of the power station will be carried out together. The inspections are carried out by the staff on duty.
3.4.2.1.2 The inspection cycle can be determined according to the specific equipment situation.
3.4.2.2 Inspection of vacuum circuit breaker
3.4.2.2.1 The indication of the opening and closing positions is correct and consistent with the actual operating conditions at that time.
3.4.2.2.2 Support the insulator without cracks and abnormal discharge noise, and there is no dust on the insulation rods, braces and insulators.
3.4.2.2.3 There is no abnormality in the vacuum interrupter.
3.4.2.2.4 The protective grounding device is intact.
3.4.2.2.5 There is no overheating in the contact part of the lead, and the lead slack is moderate.
3.4.2.3 Inspection inspection of electromagnetic operating mechanism
3.4.2.3.1 The mechanism box door is flat, flexible to open and tightly closed.
3.4.2.3.2 Check that the opening and closing coils and closing contactor coils are free of smoke and odor.
3.4.2.3.3 There is no looseness, no patina or rust on the terminals of the DC power circuit.
3.4.2.3.4 The heater is normally intact.
3.4.2.4 Inspection of spring mechanism
3.4.2.4.1 The mechanism box door is flat, flexible to open and tightly closed.
3.4.2.4.2 The circuit breaker is in the running state, and the power switch blade of the energy storage motor is in the closed position.
3.4.2.4.3 Check that the contacts of the energy storage motor and the travel switch are not stuck or deformed. The opening and closing coils have no smoke and no odor.
3.4.2.4.4 When the circuit breaker is in the standby state, the opening connecting rod shall return, the opening lock shall be in place, and the closing spring shall store energy.
3.4.2.4.5 The heater is normally intact.
3.4.2.5 Special inspections of circuit breakers
3.4.2.5.1 After the new installation is put into operation, the inspection cycle should be relatively shortened. After the operation of the operator for 72 hours, it can be transferred to the normal inspection.
3.4.2.5.2 Substations (distribution) shall arrange night inspections according to the specific conditions of the equipment. Night inspections should be conducted with the lights off.
3.4.2.5.3 Sudden changes in temperature and high temperature seasons should strengthen inspections.
3.4.2.5.4 Inspections should be strengthened during important activities or peak loads.
3.4.2.6 Normal operation and maintenance of circuit breaker
3.4.2.6.1 Regular cleaning of non-energized parts.
3.4.2.6.2 Cooperate with other equipment to stop the motor, check the transmission parts, and clean up the dirt and treatment defects accumulated in the porcelain bottle.
3.4.2.6.3 Add lubricating oil to the mechanical parts according to the equipment instruction manual.
3.4.2.6.4 Check whether the closing power fuse is normal and check whether the capacity is consistent.
3.4.3 Abnormal operation and accident handling of circuit breaker
3.4.3.1 Any abnormal phenomenon discovered by the watchkeeper during the operation of the circuit breaker shall be eliminated in time.
Level leadership, and recorded in the operation log and equipment defect log.
3.4.3.2 After the breaker is opened, the staff on duty shall immediately record the time when the fault occurred, stop the acoustic signal, and immediately perform the "accident
"Check" to determine whether the circuit breaker itself is faulty.
3.4.3.3 The circuit breaker refuses to operate when the circuit breaker fails to open, resulting in an over-level circuit breaker. When power is restored to the system, the circuit breaker that has failed to operate should be disconnected
Leave the system and keep it as it is. Investigate the reason for refusal to move and eliminate the defects before investing.
3.4.4 Technical maintenance and test of circuit breaker
3.4.4.1 The circuit breaker should be arranged for major and minor repairs according to the specific conditions of the equipment. The maintenance cycle and maintenance items can be entered into the site specifications with reference to relevant standards.
Cheng.
3.4.4.2 The circuit breaker shall be regularly tested in accordance with the technical parameters of the product manual.
3.4.4.3 Newly installed circuit breakers shall be checked and accepted in accordance with the relevant parts of the electrical engineering installation regulations. After passing the acceptance, it can be put into operation.
3.5 Operation and maintenance of voltage and current transformers
3.5.1 General requirements
3.5.1.1 Transformers should meet the requirements of instruments and protection devices for capacity and accuracy level, and the secondary load of voltage transformers should meet the requirements
Constant load, overload operation is not allowed, the secondary load of the current transformer must not exceed the value specified on the nameplate.
3.5.1.2 The primary voltage and current of the transformer during operation must not exceed 120% of the rated value.
3.5.1.3 During operation, the secondary side of the voltage transformer shall not be short-circuited, and the secondary side of the current transformer shall not be opened.
3.5.1.4 6kV ～ 35kV voltage transformers should be equipped with qualified fuses on the primary side and fuses or air circuit breakers on the secondary side.
3.5.1.5 When the voltage transformer is out of power, the secondary circuit of the voltage transformer should be disconnected to prevent reverse charging from the secondary side and endanger people and equipment.
Safety. When the voltage transformer is transmitting power, when there is no voltage on the secondary side of the voltage transformer, the secondary side can be cast first and then the primary side. In the event of a power outage,
Stop first, then stop second.
When replacing the transformer and changing the secondary circuit, when it is related to the protection and measurement of the relay, the professional should be notified.
Can only be put into operation after mistakes.
3.5.1.6 The transformer should be tested and qualified according to the relevant test regulations before it is put into operation.
3.5.2 Transformer Operation and Maintenance
3.5.2.1 The inspection of the normal operation of the transformer is as follows.
-Porcelain bottles and sleeves should be intact and free of cracks and traces of discharge;
-The primary side connector of the current transformer should not be overheated (posted with temperature wax or measured with a thermometer);
-After the transformer is put into operation, check the indication of the hands to see if it is normal.
3.5.2.2 When the following abnormalities occur in the transformer, the supervisor and relevant units of the power supply department shall be reported immediately.
-Abnormal sound or discharge sound inside;
-Casing rupture or flashover discharge;
-Odor and smoke;
-The secondary output of the voltage transformer is abnormal.
3.5.2.3 When the indicator has an abnormal indicator indication, it should immediately find the cause and determine whether it is caused by the fault of the transformer itself, and quickly
deal with.
3.6 Operation and Maintenance of Power Capacitor (Phase Shifting) Group
3.6.1 Before the capacitor bank and auxiliary equipment are put into operation, a qualification test shall be carried out according to the test regulations.
3.6.2 Inspection items before the capacitor bank is put into operation.
-The porcelain part should be complete and clean without cracks;
-The shell should be free of bulges, seepage and oil leakage;
-The joints of all parts should be in good contact, and the bushing lead connections should be made of soft connections with appropriate margin;
-The protection and monitoring circuits should be intact and fully engaged;
-The indoor capacitor bank should be well ventilated;
-The installation angle of the fuse should be correct. The rated current of the fuse is 1.43 times to 2 times the rated current of the capacitor.
3.6.3 The contents of the normal inspection of the capacitor bank are as follows.
-Observe whether the capacitor is bright or swollen outside (bulk phenomenon);
-Whether the capacitor tank leaks or leaks oil;
-Observe whether the current of each phase is normal, whether there is instability and surge;
-Observe the discharge indicator to identify whether the discharge circuit resistance is intact (except for the discharge indicator that is not participating in operation);
-Whether there are abnormal sounds and sparks;
-Whether the porcelain part of the casing has flashover marks;
-Changes in bus voltage;
-The condition of the capacitor bank current value;
-Whether the automatic switching device is operating correctly.
3.6.4 The capacitor bank shall be regularly checked for power outages. The inspection contents are as follows.
-Check the tightness and contact of each screw contact;
-Check the integrity of the discharge circuit;
-Check the ventilation of the air duct;
-Check whether the protective grounding wire of the capacitor case is intact (except those that do not allow grounding);
-Check the operation of the relay protection device and whether the fuse is intact;
-Check the operation of electrical equipment such as switches and lines of capacitor banks;
-Clean and inspect the structural porcelain insulation for cracks;
-Clean and inspe...
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