Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009 Directives for standardization - Part 1: Structure and drafting of standards.
This standard is modified in relation to the International Electrotechnical Commission standard IEC TS 61813: 2000 Live working - Care, maintenance and in-service testing of aerial devices with insulating booms. The following main technical changes have been made with respect to IEC TS 61813: 2000:
According to the manufacturing process status of aerial devices with insulating booms in China, the requirements of test voltage and test electrode for preventive test of aerial devices with insulating booms are put forward according to the voltage level in China.
This standard is the revision of DL/T 854-2004 Live working - Care, maintenance and in-service testing of aerial devices with insulating booms. In addition to editorial changes, the following main technical changes have been made with respect to DL/T 854-2004:
—— the standard name is modified;
—— the order of clauses is adjusted;
—— the preventive test requirements are modified for the aerial devices with insulating booms, and test requirements are added for the 500kV aerial devices with insulating booms;
—— Annex A is deleted.
This standard was proposed by the China Electricity Council.
This standard is under the jurisdiction of the National Technical Committee 36 on Hot-line Work of Standardization Administration of China (SAC/TC 36).
This standard shall replace DL/T 854-2004 as of the implementation date.
This standard was firstly issued on March 9, 2004, and this is the first revision.
During the process of implementing this standard, the relevant comments and recommendations, whenever necessary, can be fed back to the Standardization Center of the China Electricity Council (No.1, Lane 2, Baiguang Road, Beijing, 100761, China).
Use guide of aerial devices with insulating booms for live-working
1 Scope
This standard specifies the use, care, maintenance and test requirements of aerial devices with insulating booms for live-working.
This standard is applicable to aerial devices with insulating booms for live-working under AC 10 kV ~ 500 kV.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 507 Insulating liquids - Determination of the breakdown voltage at power frequency (GB/T 507-2002，IEC 156: 1995, EQV)
GB/T 2900.55 Electrotechnical terminology - Live working (GB/T 2900.55-2016, IEC 60050-651: 2014, IDT)
GB/T 9465 Vehicle-mounted mobile elevating work platform
GB/T 14286 Live working - Terminology for tools, equipment and devices (GB/T 14286-2008, IEC 60743: 2001, MOD)
DL/T 974 Depot of tools for live-working
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.55 and GB/T 14286 and the following apply.
3.1
elevated device
device with insulating bucket boom, which is used to lift operators and tools and materials to the working position for live working, excluding carrying vehicles
3.2
outrigger
device to support the aerial device and maintain or increase its stability during elevated device operation
3.3
working bucket
device carrying operators and tools and materials during elevated device operation
Note: Aerial devices with insulating booms for live distribution work are generally equipped with insulated working buckets, while aerial devices with insulating booms for live transmission work are generally equipped with metal working buckets.
3.4
crane jib
auxiliary bar at the end of upper boom, used for lifting working tools and materials
4 General requirements
4.1 Operators of aerial devices with insulating booms shall be familiar with the structural principle and performance of the aerial devices with insulating booms, take the theoretical and operational training of specialized training institutions, pass the examination and obtain the job certificate.
4.2 The aerial devices with insulating booms shall be tested, inspected, cared and maintained periodically during its service. The care and maintenance period may be determined according to the use frequency and environmental impact (such as pollution and weather conditions, etc.), and may also be implemented on the basis of the manufacturer's recommendations.
4.3 The aerial devices with insulating booms used in areas with an altitude over 1,000m shall be provided with the performance of not stalling during running and operating on plateau.
5 Use of aerial devices with insulating booms
5.1 If aerial devices are used in the areas with an altitude of 1,000m and below, the minimum effective insulation length of insulating boom shall be greater than those specified in Table 1; and if aerial devices are used in the areas with an altitude over 1,000m, the minimum effective insulation length of insulating booms shall be revised according to the altitude of the operation area.
Table 1 Minimum effective insulation length of insulation booms
Voltage level
kV 10 20 35 (66) 110 220 330 500
Length
m 1.0 1.2 1.5 2.0 3.0 3.8 4.0
5.2 The aerial devices with insulating booms for live-working of 110 kV and above transmission lines shall be equipped with leakage current monitoring device.
5.3 The working position of the aerial devices with insulating booms shall be properly selected, the support shall be stable and reliable, and anti-overturning measures shall be taken. Before use, carry out trial operation with empty bucket at the predetermined position to confirm that the hydraulic transmission, rotation, lifting and expansion systems work normally, operate flexibly, and the braking device is reliable. For live-working on transmission line of 110kV and above, the aerial device shall contact the live body for 5min with empty bucket, and the maximum leakage current shall not exceed 500μA. Manned operation can only be carried out after the trial operation meets the requirements.
5.4 Operators of aerial devices with insulating booms shall obey the command of the person in charge, and pay attention to the surrounding environment and operating speed during operation. In the process of operation, the engine of the aerial devices with insulating booms shall not be turned off (except the electric drive type). The approaching or leaving live parts shall be operated by the personnel in the working bucket, but the operators in the lower parts shall not leave the console.
5.5 When using aerial devices with insulating booms for live working, operators shall carefully and smoothly operate the working bucket and working boom. Impact movement shall be avoided.
5.6 The distance between the metal part of the lower section of the insulating boom and the live body during lifting and rotating shall be increased by 0.5m on the basis of the minimum safety distance for live working. In the process of operation, the operator shall not contact the metal body between the upper and lower insulation sections of the insulating boom with upper and lower insulation sections connected with metal in the middle. The vehicle body shall be well grounded during work.
5.7 If the working tools and equipment are required to be temporarily stored in the working bucket, these items should not exceed the edge of the working bucket and be taken out of the bucket after the operation.
5.8 The aerial devices with insulating booms shall not be used for propulsion and excavation, and the wires or other equipment shall not be placed on the edge of the working bucket.
5.9 The bearing load of the aerial devices with insulating booms during working shall not exceed the rated load, and the moment borne by the vehicle shall not exceed the anti-overturning moment.
6 Maintenance of insulating components
6.1 Cleaning
6.1.1 The insulating components of the aerial devices with insulating booms shall be kept clean.
6.1.2 Minor soiling on the surface of insulating components may be removed with a lint-free cloth, and heavier soiling may be removed by spraying proper solvent. Wipes with burr or grinding function shall not be used to clean the insulating components.
Note: Proper solvents refer to detergents that may effectively remove soiling without damaging the insulation performance of insulating components, such as isopropanol [(CH3)2CHOH].
6.1.3 In case of stains on insulating components, high-pressure hot water with water temperature not exceeding 50℃ and pressure not exceeding 690kPa may be used for flushing.
6.2 Silicon coating or waxing
6.2.1 The surface of insulating components shall be coated with silicon or waxed after cleaning and drying.
6.2.2 During coating, a clean lint-free cloth dipped with silicon or wax may be used to gently brush, or spraying locally may be adopted, and the accumulated silicon material or wax shall be wiped off during spraying.
6.2.3 The silicon coating or wax on the surface of insulating components may be removed with special tools or solvents.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Use of aerial devices with insulating booms
6 Maintenance of insulating components
7 Inspection
8 Preventive test
9 Maintenance and repair
10 Transportation and parking
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009 Directives for standardization - Part 1: Structure and drafting of standards.
This standard is modified in relation to the International Electrotechnical Commission standard IEC TS 61813: 2000 Live working - Care, maintenance and in-service testing of aerial devices with insulating booms. The following main technical changes have been made with respect to IEC TS 61813: 2000:
According to the manufacturing process status of aerial devices with insulating booms in China, the requirements of test voltage and test electrode for preventive test of aerial devices with insulating booms are put forward according to the voltage level in China.
This standard is the revision of DL/T 854-2004 Live working - Care, maintenance and in-service testing of aerial devices with insulating booms. In addition to editorial changes, the following main technical changes have been made with respect to DL/T 854-2004:
—— the standard name is modified;
—— the order of clauses is adjusted;
—— the preventive test requirements are modified for the aerial devices with insulating booms, and test requirements are added for the 500kV aerial devices with insulating booms;
—— Annex A is deleted.
This standard was proposed by the China Electricity Council.
This standard is under the jurisdiction of the National Technical Committee 36 on Hot-line Work of Standardization Administration of China (SAC/TC 36).
This standard shall replace DL/T 854-2004 as of the implementation date.
This standard was firstly issued on March 9, 2004, and this is the first revision.
During the process of implementing this standard, the relevant comments and recommendations, whenever necessary, can be fed back to the Standardization Center of the China Electricity Council (No.1, Lane 2, Baiguang Road, Beijing, 100761, China).
Use guide of aerial devices with insulating booms for live-working
1 Scope
This standard specifies the use, care, maintenance and test requirements of aerial devices with insulating booms for live-working.
This standard is applicable to aerial devices with insulating booms for live-working under AC 10 kV ~ 500 kV.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 507 Insulating liquids - Determination of the breakdown voltage at power frequency (GB/T 507-2002，IEC 156: 1995, EQV)
GB/T 2900.55 Electrotechnical terminology - Live working (GB/T 2900.55-2016, IEC 60050-651: 2014, IDT)
GB/T 9465 Vehicle-mounted mobile elevating work platform
GB/T 14286 Live working - Terminology for tools, equipment and devices (GB/T 14286-2008, IEC 60743: 2001, MOD)
DL/T 974 Depot of tools for live-working
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.55 and GB/T 14286 and the following apply.
3.1
elevated device
device with insulating bucket boom, which is used to lift operators and tools and materials to the working position for live working, excluding carrying vehicles
3.2
outrigger
device to support the aerial device and maintain or increase its stability during elevated device operation
3.3
working bucket
device carrying operators and tools and materials during elevated device operation
Note: Aerial devices with insulating booms for live distribution work are generally equipped with insulated working buckets, while aerial devices with insulating booms for live transmission work are generally equipped with metal working buckets.
3.4
crane jib
auxiliary bar at the end of upper boom, used for lifting working tools and materials
4 General requirements
4.1 Operators of aerial devices with insulating booms shall be familiar with the structural principle and performance of the aerial devices with insulating booms, take the theoretical and operational training of specialized training institutions, pass the examination and obtain the job certificate.
4.2 The aerial devices with insulating booms shall be tested, inspected, cared and maintained periodically during its service. The care and maintenance period may be determined according to the use frequency and environmental impact (such as pollution and weather conditions, etc.), and may also be implemented on the basis of the manufacturer's recommendations.
4.3 The aerial devices with insulating booms used in areas with an altitude over 1,000m shall be provided with the performance of not stalling during running and operating on plateau.
5 Use of aerial devices with insulating booms
5.1 If aerial devices are used in the areas with an altitude of 1,000m and below, the minimum effective insulation length of insulating boom shall be greater than those specified in Table 1; and if aerial devices are used in the areas with an altitude over 1,000m, the minimum effective insulation length of insulating booms shall be revised according to the altitude of the operation area.
Table 1 Minimum effective insulation length of insulation booms
Voltage level
kV 10 20 35 (66) 110 220 330 500
Length
m 1.0 1.2 1.5 2.0 3.0 3.8 4.0
5.2 The aerial devices with insulating booms for live-working of 110 kV and above transmission lines shall be equipped with leakage current monitoring device.
5.3 The working position of the aerial devices with insulating booms shall be properly selected, the support shall be stable and reliable, and anti-overturning measures shall be taken. Before use, carry out trial operation with empty bucket at the predetermined position to confirm that the hydraulic transmission, rotation, lifting and expansion systems work normally, operate flexibly, and the braking device is reliable. For live-working on transmission line of 110kV and above, the aerial device shall contact the live body for 5min with empty bucket, and the maximum leakage current shall not exceed 500μA. Manned operation can only be carried out after the trial operation meets the requirements.
5.4 Operators of aerial devices with insulating booms shall obey the command of the person in charge, and pay attention to the surrounding environment and operating speed during operation. In the process of operation, the engine of the aerial devices with insulating booms shall not be turned off (except the electric drive type). The approaching or leaving live parts shall be operated by the personnel in the working bucket, but the operators in the lower parts shall not leave the console.
5.5 When using aerial devices with insulating booms for live working, operators shall carefully and smoothly operate the working bucket and working boom. Impact movement shall be avoided.
5.6 The distance between the metal part of the lower section of the insulating boom and the live body during lifting and rotating shall be increased by 0.5m on the basis of the minimum safety distance for live working. In the process of operation, the operator shall not contact the metal body between the upper and lower insulation sections of the insulating boom with upper and lower insulation sections connected with metal in the middle. The vehicle body shall be well grounded during work.
5.7 If the working tools and equipment are required to be temporarily stored in the working bucket, these items should not exceed the edge of the working bucket and be taken out of the bucket after the operation.
5.8 The aerial devices with insulating booms shall not be used for propulsion and excavation, and the wires or other equipment shall not be placed on the edge of the working bucket.
5.9 The bearing load of the aerial devices with insulating booms during working shall not exceed the rated load, and the moment borne by the vehicle shall not exceed the anti-overturning moment.
6 Maintenance of insulating components
6.1 Cleaning
6.1.1 The insulating components of the aerial devices with insulating booms shall be kept clean.
6.1.2 Minor soiling on the surface of insulating components may be removed with a lint-free cloth, and heavier soiling may be removed by spraying proper solvent. Wipes with burr or grinding function shall not be used to clean the insulating components.
Note: Proper solvents refer to detergents that may effectively remove soiling without damaging the insulation performance of insulating components, such as isopropanol [(CH3)2CHOH].
6.1.3 In case of stains on insulating components, high-pressure hot water with water temperature not exceeding 50℃ and pressure not exceeding 690kPa may be used for flushing.
6.2 Silicon coating or waxing
6.2.1 The surface of insulating components shall be coated with silicon or waxed after cleaning and drying.
6.2.2 During coating, a clean lint-free cloth dipped with silicon or wax may be used to gently brush, or spraying locally may be adopted, and the accumulated silicon material or wax shall be wiped off during spraying.
6.2.3 The silicon coating or wax on the surface of insulating components may be removed with special tools or solvents.
Contents of DL/T 854-2017
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Use of aerial devices with insulating booms
6 Maintenance of insulating components
7 Inspection
8 Preventive test
9 Maintenance and repair
10 Transportation and parking
