This standard specifies quality criteria, content, procedure and project classification principle etc. of electrical engineering inspection lot, subitem project, subsection (sub-subsection) project and unit (subunit) project acceptance of oil and gas construction engineering.
This standard is applicable to the installation of 220kV or below electrical installation and the construction quality acceptance of newly-built, extended and rebuilt overhead power line project in oil and gas engineering construction.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document is applicable to this standard.
GBJ 148 "Code for Construction and Acceptance of Power Transformers, Oil Reactor and Mutual Inductor"
GBJ 149 "Erection Works of Electrical Installations Code for Construction and Acceptance of Bus-bar Device"
GB 50150 "Standard for Hand-over Test of Electric Equipment Electric Equipment Installation Engineering"
GB 50168 "Code for Construction and Acceptance of Cable System Electric Equipment Installation Engineering"
GB 50169 "Code for Construction and Acceptance of Grounding Connection Electric Equipment Installation Engineering"
GB 50173 "Code for Construction and Acceptance of 35kV and under Over-head Power Levels Electric Equipment Installation Engineering"
GB 50233 "Code for Construction and Acceptance of 110~500kV Overhead Transmission Line"
GB 50257 "Code for Construction and Acceptance of Electric Device for Explosion Atmospheres and Fire Hazard Electrical Equipment Installation Engineering"
GB 50303 "Code of Acceptance of Construction Quality of Electrical Installation in Building"
SY 4200 "Code for Quality Acceptance of Oil and Gas Construction Engineering-General Rule"
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
Wiring system
It refers to the combination of a cable (wire), muliple cables (wires) or bus bars as well as components for fixing them. If required, the wiring system shall also include enclosed cable (wire) or bus bar parts.
3.2
Electrical equipment
It refers to any parts for power generation, power transformation, power transmission, power distribution or power utilization, such as motor, transformer, electric apparatus, measuring instrument, protective device, wiring system equipment and electrical appliances.
3.3
Current-using equipment
It refers to the equipment converting the electric energy to other energy (such as luminous energy, thermal energy, mechanical energy).
3.4
Electrical installation
It refers to the combination of electrical equipment with matched characteristics and for one or several specific purposes.
3.5
Conduit
It refers to a part for protecting round or non-round wiring system of wire or cable in electric installation. The conduit has adequate air tightness to make wires and cables only led into longitudinally instead of transversely.
3.6
Metal conduit
It refers to the conduit made of metal material.
3.7
Insulating conduit
It refers to the conduit made of insulating material, without any conductive part (without internal metal lining or external metal mesh or metal coating.
3.8
Protective conductor (PE)
It refers to a conductor for electrically connecting with the following parts in order to prevent shock hazard occurrence:
——Exposed conductive parts;
——External conductive parts;
——Main earthing terminals;
——Earthing electrode (earthing device);
——Power supply earthing point or artificial neutral contact.
3.9
PEN conductor
It refers to an earthing conductor with both neutral conductor and protective conductor function.
