1 Scope
This Specification specifies the design principles and basic requirements of power supply range, load level, power supply quality, configuration scheme, design, selection of power equipment and wiring of power supply system.
This Specification is applicable to the engineering design for power supply system of instrument and control system in petrochemical engineering and in new construction, extension and renovation of enterprises using coal as raw materials to prepare oil and chemical products.
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 50052 Code for design electric power supply systems
GB 50054 Code for design of low voltage electrical installations
GB 50217 Standard for design of cables of electric power engineering
GB 14048.2 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
DL/T 1074 Integrated uninterruptible power supply equipment of DC and AC for power system
SH/T 3038 Specification for electric power design in petrochemical plants
SH/T 3081 Design code for instrument grounding in petrochemical industry
SH/T 3164 Specification for design of instrument system lightning surge protection in petrochemical industry
3 Terms and abbreviations
For the purposes of this Specification, the following terms and abbreviations apply.
3.1 Terms
3.1.1
uninterruptible power supply
power supply device composed of rectifier, inverter and DC storage battery, which is capable of providing power meeting the specification of AC power supply and meets the limit of momentary power failure
3.1.2
power capacity
rated capacity for power supply outputting power, with the capacity of DC power supply usually expressed in amperes (A) of output current, and that of AC power supply expressed in volt-ampere (VA) or kilovolt-ampere (kVA)
3.1.3
momentary power failure
short time (millisecond-level) interruption of power supply during power switching
3.1.4
momentary voltage drop
short time (millisecond level) voltage drop caused by power switching process
3.1.5
power-on surge condition
current increase for a short time when the instrument system is turned on
Foreword i
1 Scope
2 Normative references
3 Terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Instrument power supply range and load level
4.1 Instrument power supply range
4.2 Load classification
5 Quality indexes of instrument power supply
5.1 General requirements
5.2 Quality indexes
6 Configuration of AC power supply for instruments
6.1 General requirements
6.2 Double output power supply configuration for single UPS+GPS
6.3 Double output power supply configuration for double UPS
6.4 Multiple output power supply configuration for double UPS
6.5 Multiple output power supply configuration for multiple UPS
6.6 Power output wiring specification of AC UPS
7 Design of instrument power supply system
7.1 General requirements
7.2 Wiring regulations for power supply system
8 Selections of power equipment and wiring of power supply system
8.1 Selection regulations of power supply equipment
8.2 Selections of power supply equipment
8.3 Wiring of power supply system
Explanation of wording in this Specification
SH/T 3082-2019, SH 3082-2019, SHT 3082-2019, SH/T3082-2019, SH/T 3082, SH/T3082, SH3082-2019, SH 3082, SH3082, SHT3082-2019, SHT 3082, SHT3082
Introduction of SH/T 3082-2019
1 Scope
This Specification specifies the design principles and basic requirements of power supply range, load level, power supply quality, configuration scheme, design, selection of power equipment and wiring of power supply system.
This Specification is applicable to the engineering design for power supply system of instrument and control system in petrochemical engineering and in new construction, extension and renovation of enterprises using coal as raw materials to prepare oil and chemical products.
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 50052 Code for design electric power supply systems
GB 50054 Code for design of low voltage electrical installations
GB 50217 Standard for design of cables of electric power engineering
GB 14048.2 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
DL/T 1074 Integrated uninterruptible power supply equipment of DC and AC for power system
SH/T 3038 Specification for electric power design in petrochemical plants
SH/T 3081 Design code for instrument grounding in petrochemical industry
SH/T 3164 Specification for design of instrument system lightning surge protection in petrochemical industry
3 Terms and abbreviations
For the purposes of this Specification, the following terms and abbreviations apply.
3.1 Terms
3.1.1
uninterruptible power supply
power supply device composed of rectifier, inverter and DC storage battery, which is capable of providing power meeting the specification of AC power supply and meets the limit of momentary power failure
3.1.2
power capacity
rated capacity for power supply outputting power, with the capacity of DC power supply usually expressed in amperes (A) of output current, and that of AC power supply expressed in volt-ampere (VA) or kilovolt-ampere (kVA)
3.1.3
momentary power failure
short time (millisecond-level) interruption of power supply during power switching
3.1.4
momentary voltage drop
short time (millisecond level) voltage drop caused by power switching process
3.1.5
power-on surge condition
current increase for a short time when the instrument system is turned on
Contents of SH/T 3082-2019
Foreword i
1 Scope
2 Normative references
3 Terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Instrument power supply range and load level
4.1 Instrument power supply range
4.2 Load classification
5 Quality indexes of instrument power supply
5.1 General requirements
5.2 Quality indexes
6 Configuration of AC power supply for instruments
6.1 General requirements
6.2 Double output power supply configuration for single UPS+GPS
6.3 Double output power supply configuration for double UPS
6.4 Multiple output power supply configuration for double UPS
6.5 Multiple output power supply configuration for multiple UPS
6.6 Power output wiring specification of AC UPS
7 Design of instrument power supply system
7.1 General requirements
7.2 Wiring regulations for power supply system
8 Selections of power equipment and wiring of power supply system
8.1 Selection regulations of power supply equipment
8.2 Selections of power supply equipment
8.3 Wiring of power supply system
Explanation of wording in this Specification
