JB/T 10303-2001 Technical requirements for industrial frequency diesel generator sets
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T10303
极福艷
2001-08-30
瓦鱻极懂
2002-01-01小链
JB/T103032001
This standard is an industry standard formulated based on GB2820.1~6-1997 "AC generator set driven by reciprocating internal combustion engine" eqvISO8528-1~6:1993 and ISO8528-7~10. This standard has made necessary supplements and refinements to the relevant technical requirements, inspection rules and test methods.
This standard was proposed and managed by Lanzhou Electric Vehicle Research Institute, and was drafted by Lanzhou Electric Vehicle Research Institute. The main drafters of this standard are Liu Chunyuan, Chen Yingfang, Zhang Hongzhan, Shang Yunfeng, and Chen Jing. I
Ji Jia Xin Kui Lu Wa Yi
Ji Fu Yan
JB/T103032001
This standard specifies the technical requirements, test methods, inspection rules, marking, packaging and storage and transportation requirements for industrial frequency diesel generator sets consisting of reciprocating internal combustion (RIC) engines, alternating current (AC) generators, control devices and auxiliary equipment. This standard applies to generator sets with a rated frequency of 50Hz and diesel engines (hereinafter referred to as units) of 0.5kW to 150kW. 60 Hz units can be used as a reference.
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard by being cited in this standard. When this standard was published, the versions shown were all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the new version of the following standards: GB146.1-1983 Standard gauge railway rolling stock limits GB146.2-1983 Standard gauge railway building limits GB1105.1-1987 Internal combustion engine bench performance test method Standard environmental conditions and calibration of power, fuel consumption and oil consumption GB1589-1989 Motor vehicle outline dimension limits GB/T2423.16-1999 Basic environmental test procedures for electrical and electronic products Test J: Mildew test method (eqvIEC 60068-2-10: 1998) GR/T 2820. 1-1997 Reciprocating internal combustion engine driven alternating current generating sets Part 1: Application, rating and performance (eqvISCO 8528-1: GB/T 2820.4—1997 Reciprocating internal combustion engine driven AC generator set Part 4: Control devices and switchgear (eqv ISO 8528-4: 1993) GB/T 2820.5—1997 Reciprocating internal combustion engine driven AC generator set Part 5: Generator (eqv [ISO 8528-5: 1993) GB/T 2820.61997 Reciprocating internal combustion engine driven AC generator set 1 Part 6: Test methods (eqv ISO 8528-6:1993) GB/T 13306—1991 Labels GJB 1488—1992 Military internal combustion engine power station communication/test methods JB/T 7606—1994
Technical requirements for assembly of internal combustion engine power station
JB/T8186—1999 Rated power, voltage and speed of industrial frequency diesel generator sets Terminology of internal combustion engine power station
JB/8194—2001
JB/T50054-1999 Reliability assessment and evaluation methods for internal combustion engine power station ISO8528—8:1995 Reciprocating internal combustion engine driven AC generator sets Part 8: Requirements and tests for small power generator sets
ISO85 28-9:1995 Reciprocating internal combustion engine driven alternating current generating sets, Part 9: Evaluation of mechanical vibration 2001-08-30
2002-01-01
JB/T103032001
ISO8528-10:1998 Reciprocating internal combustion engine driven alternating current generating sets, Part 10: Measurement of noise (surface method) 3 Terminology
This standard adopts the relevant terms in GB/T2820.5 and JB/T8194. 4 Technical requirements
4.1 General
4.1.1 The unit shall comply with the provisions of this standard. The various supporting parts of the unit, which are not specified in this standard, shall comply with the provisions of their respective technical conditions.
4.1.2 The technical requirements for the assembly of the unit shall comply with the provisions of IB7606. 4.1.3 When there are special requirements for the unit, additional provisions should be made in the product technical conditions. 4.2 Parameter requirements
4.2.1 The unit should be manufactured in accordance with the provisions of JB/T8186. 4.2. 2 The overall dimensions of the unit should comply with the provisions of GB 146.1, GB 146.2 and GB 1589. 4.2.3 The mass (kg) of the unit should comply with the provisions of the product technical conditions. 4.3 Indicator
4.3.1 The monitoring instruments carried by the engine should comply with the provisions of the corresponding product technical conditions. 4.3.2 The electrical instruments of the unit should be installed in accordance with the provisions of 7.1 of GB/T2820.4. 4.3.3 The accuracy level of each monitoring instrument (except the engine instrument) on the unit control panel: the frequency meter should not be lower than level 5.0: others should not be lower than level 2.5.
4.3.4 The control panel sound, signal and other indicating devices should work normally. 4.4 Environmental conditions
4.4.1 Conditions for outputting rated power
The environmental conditions for the rated power output of the unit shall be one of the following, and shall be clearly stated in the product technical conditions. (1) a. Absolute atmospheric pressure, p: 100 kPa: b. Ambient temperature, T: 298K (25°C): C. Relative humidity of air, medium: 30%.
(2) a. Absolute atmospheric pressure: 89.9 kPa b. Ambient temperature: 313K (40°C):
C. Relative humidity of air, medium: 60%.
4.4.2 Conditions for outputting specified power (corrected power allowed) The unit shall be able to output the specified power and operate reliably under the following conditions, and the conditions shall be clearly stated in the product technical conditions. 4.4.2.1 Altitude
Not exceeding 4000m
4.4.2.2 Ambient temperature
The lower limit values are 5℃, -15℃, -25℃, -40℃ respectively; the upper limit values are 40℃, 45℃, 50℃ respectively. 4.4.2.3 Relative humidity, condensation and bacteria
a) Comprehensive factors: According to the provisions of Table 1:
Relative humidity
Upper limit of ambient temperature
JB/T103032001
Average maximum relative humidity of the wettest month
Average minimum relative humidity of the driest month
(at 25℃)1
(at 25℃)1)
1) refers to the monthly average minimum temperature of the month is 25℃, and the monthly average minimum temperature refers to the monthly average of the minimum temperatures of each level in the month. 2) The monthly average maximum temperature refers to the monthly average of the highest temperatures of each day of the month. 10
(at 40°C) 23
b) Mildew: After the mildew test, the surface mildew level of the electrical components of the unit shall not exceed level 2 specified in GB/T2423.16. 4.4.2.4 Site conditions
The site conditions for the operation of the unit shall be clearly determined by the user, and any special hazardous conditions (such as explosive atmosphere and flammable gas) shall be explained.
4.4.3 Power Correction
When the actual working conditions or test conditions of the unit are worse than those assumed in 4.4.1, the specified output power shall not be lower than the following corrected value: For units with non-supercharged and mechanically supercharged diesel engines, the power is converted into electric power after converting the diesel engine power under the test conditions in accordance with the provisions of GB1105.1, but the maximum electric power shall not exceed the rated power of the generator. For units using other prime movers, the power correction method shall be in accordance with the provisions of the product technical conditions. 4.4.4 Ambient temperature correction
When the test altitude exceeds 10G0m (but not more than 400011), the upper limit of the ambient temperature shall be corrected by reducing 0.5℃ for every 100m increase in altitude.
4.5 Working mode
4.5.1 Continuous operation at rated working condition
Under the conditions specified in 4.4.1, the unit shall be able to operate normally and continuously at rated working condition for 12 hours (including 1 hour of operation at 10% overload), and the unit shall not have abnormal phenomena such as oil leakage, water leakage, and air leakage. 4.5.2 Continuous operation after corrected power
The unit shall exceed 4.5.1 When the unit is continuously operated for the specified time (under the condition of maintenance in accordance with the instructions for use), its output power is converted to electric power after correction according to 90% of the specified engine power, but this electric power shall not exceed the rated power of the generator. The operating time shall be in accordance with the provisions of the product technical conditions.
4.6 Starting requirements
4. 6. 1 Normal temperature starting
The unit shall be able to successfully start after 3 times at normal temperature (not less than 5℃ for non-supercharged units and not less than 10℃ for supercharged units). 4.6.2 Low temperature starting and load
Units used at low temperatures shall have low temperature starting measures. At an ambient temperature of -40℃ (or -25℃), units with a power of no more than 250kW shall be able to start smoothly within 30 minutes, and shall have the ability to work with the specified load within 3 minutes after successful starting: For units with a power greater than 250kw, the starting time and load working time at low temperatures shall be in accordance with the provisions of the product technical conditions. 4.7 Performance level
Including 4 performance levels with different requirements for each power supply system, see 7.1 to 7.4 of GB/T2820.1, 3
4.8 Electrical performance
4.8.1 Voltage setting range
JB/T103032001
The maximum possible range of the rising and falling regulating voltage at the generator terminals at rated frequency for all loads between no-load and rated output and within the agreed power factor range shall not be less than ±5% of the rated voltage. The loads between no-load and rated output shall be specified in the product technical conditions or determined in the contract. 4.8.2 Voltage and frequency performance level
The operating limit values of the voltage and frequency performance levels shall be as specified in Table 2. Table 2
Frequency drop of
Steady-state frequency band B
Relative frequency setting drop range 5F
Relative frequency setting rise range 8
100% sudden power reduction
(to rated frequency)
Transient frequency deviation
Rated power recovery time
Relative frequency tolerance band
Sudden power increase
Steady-state voltage deviation
Voltage modulation,
100% sudden power reduction
Transient frequency deviation
Voltage fast recovery time
Sudden power increase 33
Voltage unbalance 6U.
From
According to agreement
1) In the case of generator sets with single-cylinder or two-cylinder engines, this value can reach 2.5. 2) For parallel operation not required, the setting of speed and voltage is allowed. Performance level
2 (2.5+ 6f)
Heat 103
≤-15
3) For generator sets with turbocharged engines, this data is applicable to increase the maximum permissible power according to Figures 6 and 7 of GB/T2820.5. 4) For small units not exceeding 10 kVA. G,
5) When considering the reactive current characteristics, the minimum requirements for units with synchronous generators in parallel operation are: the frequency drift range should not exceed ±0.5%6) For generator sets with single-cylinder or two-cylinder engines, the value can be ±2.7) In the case of parallel operation, this value should be reduced to 0.5. 4.8.3 Cold and hot state voltage change
JB/T103032001
The voltage change from cold state to hot state of the unit under rated conditions: for units using controllable excitation device generators, it should not exceed ±2% of the rated voltage: for units using uncontrollable excitation device generators, it should not exceed ±5% of the rated voltage. 4.8.4 Distortion rate
The sinusoidal distortion rate of the line voltage waveform of the unit at the rated voltage under no-load should not exceed the following specified values: 15% for single-phase units and three-phase units with rated power less than 3kW; 10% for three-phase units with rated power of 3kW~250kW; 5% for units with rated power greater than 250kW. 4.8.6 Asymmetric load requirements
For a three-phase unit with rated power not greater than 250kW, under a certain three-phase symmetrical load, if a resistive load of 25% of the rated phase power is added to any phase (for thyristor exciters, it refers to a phase connected to the thyristor), it should be able to work normally when the total load current of the phase does not exceed the rated value. The difference between the maximum (or minimum) value of the line voltage and the average value of the three-line voltage should not exceed 5% of the average value of the three-line voltage. 4.8.6 Parallel connection
4.8.6.1 Parallel connection of units of the same model, specification and capacity ratio not greater than 3:1 Units of the same model, specification and capacity ratio not greater than 3:1 shall be able to operate in parallel stably within the range of 20% to 100% of the total rated power, and shall be able to smoothly transfer the active power and reactive power of the load. The distribution difference of the active power and reactive power shall not be greater than that specified in Table 3. Table 3
Active power distribution
Reactive power distribution
Between 80% and 100% rated rating
Between 2% and 80% rated rating
Between 20% and 100% rated rating
Performance level
≤±10
1) When this tolerance is used, the total amount of the active rated load or reactive rated load of the parallel-operating generating units shall be reduced by the tolerance value. 4.8.6.2 Parallel connection of units with a capacity-to-base ratio greater than 3:1 G
For units with a capacity-to-base ratio greater than 3:1, the difference in active power and reactive power distribution of the load borne by each unit shall comply with the provisions of the product technical conditions.
4.8.7 Starting motor
JB/T103032001
When the three-phase unit is unloaded, it shall be able to directly and successfully start the unloaded four-pole squirrel cage type three-phase asynchronous motor specified in Table 4. Table 4
4.8.8 Temperature rise
Rated power of the unit P
75≤120
120-P$250
250≤P≤1250
The temperature (or temperature rise) of each component of the unit shall comply with the provisions of the respective product technical conditions. 4.9 Structure
4.9.1 The electrical wiring of the unit shall comply with the circuit diagram. The electrical installation shall comply with the provisions of the corresponding drawings. Motor rated power
As specified in the product technical conditions
4.9.2 When the engine and generator are connected by non-flange stoppers, the coaxiality of the engine and generator shall comply with the provisions of the product technical conditions.
4.9.3 The mechanical strength and mechanical stability of units with a capacity below 10kW shall meet the following requirements. 4.9.3.1 The unit shall be able to withstand an impact of 1.0J±0.05J impact energy on the impact tester, and the unit shall not be mechanically damaged. 4.9.3.2 The unit shall not be mechanically or electrically damaged when it falls from a height of 20cm onto the concrete floor of the room. 4.9.3.3 After the unit is placed on a 15° inclined plane in any direction without load, the unit shall not overturn or spill fuel or water. 4.9.3.4 The unit is placed at four different positions on a rough concrete slope with an inclination of 4°. After running for 30 minutes at no load and rated power, the position change should not exceed 10 ml. 4.10 Limits of environmental pollution
4.10.1 Vibration
The unit should be equipped with a vibration reduction device as required; the effective value range of vibration acceleration, velocity and displacement of common generator sets is shown in Table 5. These data can be used to evaluate the vibration level and potential effects of the generator set. Experience has shown that for generator sets designed according to standard structures and components, no damage will occur when the vibration level is less than value 1. When the vibration level is between value 1 and value 2, the strength of the structure and parts of the generator set should be evaluated according to the agreement between the engine manufacturer and the parts supplier to ensure the reliable operation of the generator. In some cases, the vibration level may be higher than value 2, but this is limited to individual special structure generators. 4.10.2 Noise
For units with power not exceeding 250kW, the average noise level shall not exceed 102dB (A): For units with power exceeding 250kW, units with rated speed of 3000r/min and units using supercharged diesel engines, the noise sound pressure level shall be specified in the product technical conditions. 4.10.3 Radio interference
For units with requirements for suppressing radio interference, measures for suppressing radio interference shall be taken. The interference value shall not exceed the specified values in Table 6 and Table 7.
Standard
Rated speed
Generator set
Rated power
(single cylinder engine)
10P≤100
100-PS200
200≤Ps1000
P: 000
r>:000
JB/T103032001
Report displacement effective value
Generator
Value 2
Perturbation velocity effective value
Generator"
Value 1
(10)
Value 2
(15):
1) Displacement effective value 5.. and acceleration effective value = Use the velocity effective value in the table to obtain the following formula: Hu
S. =0. 0159 o
ax- 0. 628 m
effective value of vibration acceleration
generator"
value 1
value 2
2) For the generator 1 connected with the upper end of the ten flanges, the measured value at the measuring point 5 (1≤08528-9 Figure a》) shall meet the required values for the generator. 3) Generators with rated power greater than 100kW have definite values: while generator sets with rated power less than 100kW have only representative values. 4) These values shall be recognized by the manufacturer and users. 5) The values in brackets apply to generator sets installed on a concrete foundation. At this time, the axial vibration values measured at points 7 and 8 in 1S08528-9 Figure 1) and Figure 1b) shall be 50% of the values in brackets. Installation 6
Terminal wide interference
Frequency band a
Interference field strength
4.10.4 Harmful substance concentration
JB/T103032001
Table 6 (end)
Terminal interference voltage
0.15%0.50
0.504≤2.50
2.50/≤20.0020.00≤≤300.00
When required, the allowable concentration of harmful substances discharged by the unit shall comply with the provisions of the product technical conditions. 4.10.5 Smoke density
When required, the exhaust smoke density of the unit shall comply with the provisions of the product technical conditions. 4.11 Transportation
The structures of each part of the unit (except the units assembled on site) shall be able to withstand the vibration and impact of transportation in accordance with the following requirements. a) Mileage: 500km:
b) Road surface: 60% of the test mileage for uneven dirt roads and bumpy gravel roads: 40% of the test mileage for asphalt (or cement) roads:
c) Speed: 20km/h~30km/h on uneven dirt roads and bumpy gravel roads: 30 km/h~40 km/h on asphalt (or cement) roads.
4.12 Fuel consumption requirements
4.12.1 When required, the fuel capacity equipped by the machine maintenance should comply with the provisions of Table 8. Table 8
Rated power of the unit P
Fuel tank capacity ensures continuous operation time of the unit h (not less than)
The fuel consumption and oil consumption rate (g/kWh) of the unit should not exceed the provisions of Table 9 and Table 10 respectively. 4. 12. 2
Rated power unit
Fuel consumption
According to product technical conditions
JB/T103032001
Note: The maximum allowable difference of fuel consumption rate shall not exceed -5% of the actual rated value, and the reference lower calorific value of heavy oil is 42.000.kJ/kgTable 10
Rated power of unit P
Oil consumption rate
4.13 Safety
4.13.1 Grounding
The unit should have a good grounding terminal with obvious signs. 4.13.2 Insulation resistance
401250
≤1250
p>1250
According to the product technical system regulations
The insulation resistance of each independent electrical circuit of the unit to the ground, and between circuits should not be lower than the regulations in Table 11. The cold insulation resistance is for reference only and is not subject to assessment.
The ring end temperature is 15℃~35℃, the relative humidity of the air is 45%-75%
The ring spray temperature is 25℃, and the relative humidity of the air is 95%Hot
Circuit rated center claw
Primary circuit to ground, primary circuit to secondary circuit, and tertiary circuit to ground
Note: The electrical part of the engine, the flat conductor evaluation device and the capacitor are not subject to this test. 4.13.3 Withstand voltage
Rated circuit voltage
U=6 300
According to the provisions of the product technical regulations
Test output pressure
(1000+2 times rated application pressure)×80%, minimum 1200750
JB/T103032001
Each independent electrical circuit of the unit should be able to withstand the insulation dielectric strength test voltage of 50Hz, actual sine wave as much as possible, and lasting 1min as specified in Table 12 without breakdown or flashover. 4.13.4 Phase sequence
Phase sequence of three-phase unit: For output plugs and sockets, they should be arranged in a clockwise direction (facing the socket); for terminals on the control panel, they should be arranged from left to right or from top to bottom when viewed from the front of the panel. 4.14 Protection measures
4.14.1 Overload protection
The unit shall have overload protection measures. When the load current exceeds the overload current value specified in the product technical conditions, the overload protection device shall be able to operate reliably within the specified time.
4.14.2 Short-circuit protection
The unit with a rated power not exceeding 250kW shall have short-circuit protection measures. When a short circuit occurs at the end of the unit output cable, the protection measures shall be able to operate quickly and reliably, and the unit shall not be damaged. For units with a rated power greater than 250kW, the short-circuit protection requirements shall comply with the provisions of the product technical conditions. The short circuit of the three units includes single-phase, two-phase and three-phase short circuits. The specifications and length of the output cable shall comply with the provisions of the product technical conditions. 4.14.3 Other protection
The unit is required to be equipped with protection devices specified in 7.2 and 7.3 of GB/T2820.4, and the test methods shall be clearly stated and specified in the product technical conditions.
4.15 Reliability and maintainability
The mean time between failures and the mean time to repair of the unit shall comply with the provisions of Table 13. Table 13
Rated speed
750, 600, 500
4.16 Appearance quality
Mean time between failures
(not shorter than) h
Mean time to repair T:
[not longer than) h
4.16.1 The welding of the unit shall be solid, and the weld shall be uniform, without defects such as cracks, coating, slag splashing, weld penetration, undercut, leakage and pores. Slag and welding flux shall be cleaned.
4.16.2 The surface of the control panel of the unit shall be flat. 4.16.3 The paint film of the painted part of the unit shall be uniform, without obvious cracks, shedding, flow marks, bubbles, scratches, etc. 4.16.4 The plating layer of the electroplated parts of the unit shall be smooth, without plating spots, rust and other phenomena. 4.16.5 The color of the outer surface of the unit shall comply with the provisions of the product technical conditions. 4.16.6 The fasteners of the unit shall not be loose. Tools and accessories shall be firmly fixed. 4.17 Completeness
4.17.1 The completeness of the unit shall be based on the agreement between the supply and demand parties. 4.17.2 Each unit shall be accompanied by the following documents: a) Certificate of conformity:11 Transportation
The structures of the units (except the units assembled on site) shall be able to withstand the vibration and impact of transportation in accordance with the following requirements. a) Mileage: 500km:
b) Road surface: 60% of the test mileage for uneven dirt roads and bumpy gravel roads: 40% of the test mileage for asphalt (or cement) roads:
c) Speed: 20km/h~30km/h on uneven dirt roads and bumpy gravel roads: 30km/h~40km/h on asphalt (or cement) roads.
4.12 Fuel consumption requirements
4.12.1 When required, the fuel capacity of the machine maintenance equipment shall comply with the provisions of Table 8. Table 8
Rated power of the unit P
Fuel tank capacity to ensure continuous operation time of the unit h (not less than)
The fuel consumption and oil consumption rate of the unit (g/kWh) shall not be higher than the requirements of Table 9 and Table 10 respectively. 4. 12. 2
Rated power of the unit
Fuel consumption
According to the technical conditions of the product
JB/T103032001
Note: The maximum allowable difference of the fuel consumption rate shall not exceed -5% of the actual rated value, and the reference lower calorific value of heavy oil is 42.000.kJ/kgTable 10
Rated power of the unit P
Oil consumption rate
4.13 Safety
4.13.1 Grounding
The unit should have a good grounding terminal with obvious signs. 4.13.2 Insulation resistance
401250
≤1250
p>1250
According to the product technical system regulations
The insulation resistance of each independent electrical circuit of the unit to the ground, and between circuits should not be lower than the regulations in Table 11. The cold insulation resistance is for reference only and is not subject to assessment.
The ring end temperature is 15℃~35℃, the relative humidity of the air is 45%-75%
The ring spray temperature is 25℃, and the relative humidity of the air is 95%Hot
Circuit rated center claw
Primary circuit to ground, primary circuit to secondary circuit, and tertiary circuit to ground
Note: The electrical part of the engine, the flat conductor evaluation device and the capacitor are not subject to this test. 4.13.3 Withstand voltage
Rated circuit voltage
U=6 300
According to the provisions of the product technical regulations
Test output pressure
(1000+2 times rated application pressure)×80%, minimum 1200750
JB/T103032001
Each independent electrical circuit of the unit should be able to withstand the insulation dielectric strength test voltage of 50Hz, actual sine wave as much as possible, and lasting 1min as specified in Table 12 without breakdown or flashover. 4.13.4 Phase sequence
Phase sequence of three-phase unit: For output plugs and sockets, they should be arranged in a clockwise direction (facing the socket); for terminals on the control panel, they should be arranged from left to right or from top to bottom when viewed from the front of the panel. 4.14 Protection measures
4.14.1 Overload protection
The unit should have overload protection measures. When the load current exceeds the overload convex current value specified in the product technical conditions, the overload protection device should be able to operate reliably within the specified time.
4.14.2 Short-circuit protection
The unit with a rated power not exceeding 250kW should have short-circuit protection measures. When a short circuit occurs at the end of the unit's output cable, the protection measures should be able to operate quickly and reliably, and the unit will not be damaged. For units with a rated power greater than 250kW, the short-circuit protection requirements shall comply with the provisions of the product technical conditions. The short circuit of the three units includes single-phase, two-phase and three-phase short circuits. The specifications and length of the output cable shall comply with the provisions of the product technical conditions. 4.14.3 Other protection
The unit is required to be equipped with protection devices specified in 7.2 and 7.3 of GB/T2820.4, and the test methods shall be clearly stated and specified in the product technical conditions.
4.15 Reliability and maintainability
The mean time between failures and the mean time to repair of the unit shall comply with the provisions of Table 13. Table 13
Rated speed
750, 600, 500
4.16 Appearance quality
Mean time between failures
(not shorter than) h
Mean time to repair T:
[not longer than) h
4.16.1 The welding of the unit shall be solid, and the weld shall be uniform, without defects such as cracks, coating, slag splashing, weld penetration, undercut, leakage and pores. Slag and welding flux shall be cleaned.
4.16.2 The surface of the control panel of the unit shall be flat. 4.16.3 The paint film of the painted part of the unit shall be uniform, without obvious cracks, shedding, flow marks, bubbles, scratches, etc. 4.16.4 The plating layer of the electroplated parts of the unit shall be smooth, without plating spots, rust and other phenomena. 4.16.5 The color of the outer surface of the unit shall comply with the provisions of the product technical conditions. 4.16.6 The fasteners of the unit shall not be loose. Tools and accessories shall be firmly fixed. 4.17 Completeness
4.17.1 The completeness of the unit shall be based on the agreement between the supply and demand parties. 4.17.2 Each unit shall be accompanied by the following documents: a) Certificate of conformity:11 Transportation
The structures of the units (except the units assembled on site) shall be able to withstand the vibration and impact of transportation in accordance with the following requirements. a) Mileage: 500km:
b) Road surface: 60% of the test mileage for uneven dirt roads and bumpy gravel roads: 40% of the test mileage for asphalt (or cement) roads:
c) Speed: 20km/h~30km/h on uneven dirt roads and bumpy gravel roads: 30km/h~40km/h on asphalt (or cement) roads.
4.12 Fuel consumption requirements
4.12.1 When required, the fuel capacity of the machine maintenance equipment shall comply with the provisions of Table 8. Table 8
Rated power of the unit P
Fuel tank capacity to ensure continuous operation time of the unit h (not less than)
The fuel consumption and oil consumption rate of the unit (g/kWh) shall not be higher than the requirements of Table 9 and Table 10 respectively. 4. 12. 2
Rated power of the unit
Fuel consumption
According to the technical conditions of the product
JB/T103032001
Note: The maximum allowable difference of the fuel consumption rate shall not exceed -5% of the actual rated value, and the reference lower calorific value of heavy oil is 42.000.kJ/kgTable 10
Rated power of the unit P
Oil consumption rate
4.13 Safety
4.13.1 Grounding
The unit should have a good grounding terminal with obvious signs. 4.13.2 Insulation resistance
401250
≤1250
p>1250
According to the product technical system regulations
The insulation resistance of each independent electrical circuit of the unit to the ground, and between circuits should not be lower than the regulations in Table 11. The cold insulation resistance is for reference only and is not subject to assessment.
The ring end temperature is 15℃~35℃, the relative humidity of the air is 45%-75%
The ring spray temperature is 25℃, and the relative humidity of the air is 95%Hot
Circuit rated center claw
Primary circuit to ground, primary circuit to secondary circuit, and tertiary circuit to ground
Note: The electrical part of the engine, the flat conductor evaluation device and the capacitor are not subject to this test. 4.13.3 Withstand voltage
Rated circuit voltage
U=6 300
According to the provisions of the product technical regulations
Test output pressure
(1000+2 times rated application pressure)×80%, minimum 1200750
JB/T103032001
Each independent electrical circuit of the unit should be able to withstand the insulation dielectric strength test voltage of 50Hz, actual sine wave as much as possible, and lasting 1min as specified in Table 12 without breakdown or flashover. 4.13.4 Phase sequence
Phase sequence of three-phase unit: For output plugs and sockets, they should be arranged in a clockwise direction (facing the socket); for terminals on the control panel, they should be arranged from left to right or from top to bottom when viewed from the front of the panel. 4.14 Protection measures
4.14.1 Overload protection
The unit should have overload protection measures. When the load current exceeds the overload convex current value specified in the product technical conditions, the overload protection device should be able to operate reliably within the specified time.
4.14.2 Short-circuit protection
The unit with a rated power not exceeding 250kW should have short-circuit protection measures. When a short circuit occurs at the end of the unit's output cable, the protection measures should be able to operate quickly and reliably, and the unit will not be damaged. For units with a rated power greater than 250kW, the short-circuit protection requirements shall comply with the provisions of the product technical conditions. The short circuit of the three units includes single-phase, two-phase and three-phase short circuits. The specifications and length of the output cable shall comply with the provisions of the product technical conditions. 4.14.3 Other protection
The unit is required to be equipped with protection devices specified in 7.2 and 7.3 of GB/T2820.4, and the test methods shall be clearly stated and specified in the product technical conditions.
4.15 Reliability and maintainability
The mean time between failures and the mean time to repair of the unit shall comply with the provisions of Table 13. Table 13
Rated speed
750, 600, 500
4.16 Appearance quality
Mean time between failures
(not shorter than) h
Mean time to repair T:
[not longer than) h
4.16.1 The welding of the unit shall be solid, and the weld shall be uniform, without defects such as cracks, coating, slag splashing, weld penetration, undercut, leakage and pores. Slag and welding flux shall be cleaned.
4.16.2 The surface of the control panel of the unit shall be flat. 4.16.3 The paint film of the painted part of the unit shall be uniform, without obvious cracks, shedding, flow marks, bubbles, scratches, etc. 4.16.4 The plating layer of the electroplated parts of the unit shall be smooth, without plating spots, rust and other phenomena. 4.16.5 The color of the outer surface of the unit shall comply with the provisions of the product technical conditions. 4.16.6 The fasteners of the unit shall not be loose. Tools and accessories shall be firmly fixed. 4.17 Completeness
4.17.1 The completeness of the unit shall be based on the agreement between the supply and demand parties. 4.17.2 Each unit shall be accompanied by the following documents: a) Certificate of conformity:2 Short-circuit protection
Units with a rated power not exceeding 250kW shall have short-circuit protection measures. When a short circuit occurs at the end of the unit's output cable, the protection measures shall be able to operate quickly and reliably, and the unit shall not be damaged. For units with a rated power greater than 250kW, the short-circuit protection requirements shall comply with the provisions of the product technical conditions. The short circuit of the three units includes single-phase, two-phase and three-phase short circuits. The specifications and length of the output cables shall comply with the provisions of the product technical conditions. 4.14.3 Other protection
The unit is required to be equipped with protection devices as specified in 7.2 and 7.3 of GB/T2820.4, and the test methods shall be clearly stated and specified in the product technical conditions.
4.15 Reliability and maintainabilitybZxz.net
The mean time between failures and the mean time to repair of the unit shall comply with the provisions of Table 13. Table 13
Rated speed
750, 600, 500
4.16 Appearance quality
Average time between failures
(not shorter than) h
Average time to repair T:
[not longer than) h
4.16.1 The welding of the unit should be solid, and the weld should be even, without defects such as cracks, coating, slag splashing, weld penetration, undercut, leakage and pores. Slag and welding flux should be cleaned.
4.16.2 The surface of the control panel of the unit should be flat. 4.16.3 The paint film of the painted part of the unit should be uniform, without obvious cracks, shedding, flow marks, bubbles, scratches, etc. 4.16.4 The plating layer of the electroplated parts of the unit is smooth, without leakage spots, rust, etc. 4.16.5 The color of the unit's outer surface shall comply with the product's technical requirements. 4.16.6 The unit's fasteners shall not be loose. Tools and accessories shall be firmly fixed. 4.17 Completeness
4.17.1 The completeness of the unit shall be subject to the agreement between the supplier and the buyer. 4.17.2 Each unit shall be accompanied by the following documents: a) Certificate of Conformity:2 Short-circuit protection
Units with a rated power not exceeding 250kW shall have short-circuit protection measures. When a short circuit occurs at the end of the unit's output cable, the protection measures shall be able to operate quickly and reliably, and the unit shall not be damaged. For units with a rated power greater than 250kW, the short-circuit protection requirements shall comply with the provisions of the product technical conditions. The short circuit of the three units includes single-phase, two-phase and three-phase short circuits. The specifications and length of the output cables shall comply with the provisions of the product technical conditions. 4.14.3 Other protection
The unit is required to be equipped with protection devices as specified in 7.2 and 7.3 of GB/T2820.4, and the test methods shall be clearly stated and specified in the product technical conditions.
4.15 Reliability and maintainability
The mean time between failures and the mean time to repair of the unit shall comply with the provisions of Table 13. Table 13
Rated speed
750, 600, 500
4.16 Appearance quality
Average time between failures
(not shorter than) h
Average time to repair T:
[not longer than) h
4.16.1 The welding of the unit should be solid, and the weld should be even, without defects such as cracks, coating, slag splashing, weld penetration, undercut, leakage and pores. Slag and welding flux should be cleaned.
4.16.2 The surface of the control panel of the unit should be flat. 4.16.3 The paint film of the painted part of the unit should be uniform, without obvious cracks, shedding, flow marks, bubbles, scratches, etc. 4.16.4 The coating of the electroplated parts of the unit should be smooth, without leakage spots, rust, etc. 4.16.5 The color of the unit's outer surface shall comply with the product's technical requirements. 4.16.6 The unit's fasteners shall not be loose. Tools and accessories shall be firmly fixed. 4.17 Completeness
4.17.1 The completeness of the unit shall be subject to the agreement between the supplier and the buyer. 4.17.2 Each unit shall be accompanied by the following documents: a) Certificate of Conformity:
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