Article 1.0.1 This code is formulated with a view to ensure the construction quality of cable installation, to promote the technical improvement of the circuit construction and to ensure the safety work of cable routes.
Article 1.0.2 This code is applicable for the construction and acceptance of the installation engineering of electric power cable routes or control cable routes that work with a voltage of 500 kV or lower.
The installation engineering of cable routes with special requirements such as mines, ships, metallurgy and chemistry, shall meet the corresponding discipline rules.
Article 1.0.3 Installation of cable routes shall be carried out in accordance with approved design.
Article 1.0.4 The transportation and storage of cable and its appendixes shall be in accordance with the requirement of this code. When the product is with special requirement they shall be in accordance with the requirement.
Article 1.0.5 The storage period of cable and its appendixes before installation shall be not longer than 1 year. When a long-term storage is necessary, the period shall be in accordance with special regulations of equipment storage.
Article 1.0.6 The adopted cable as well as its appendixes shall be in accordance with the regulations of the running technical standards of the country and qualified certificates shall be available. The equipment shall be with proper nameplate.
Article 1.0.7 The safety technical measures adopted in construction shall be in accordance with this code as well as the running safety technical standards and product technical documents. The safety technical measures shall be set down beforehand for important construction projects or procedures.
Article 1.0.8 The practice of the construction projects that are related to cable line installation shall be in accordance with the following requirements:
A． The constructional engineering quality of buildings and structures that related to cable line installation shall be in accordance with the concerning regulations in the actual national codes of construction and acceptance of constructional engineering.
B． Before installation of cable routes, the constructional engineering shall meet the following requirements:
a. The pre-embedded fittings shall be in accordance with design and fixed firmly;
b. Surfacing and float work shall be finished where there exist cable ducts, tunnels or vertical shafts;
c. The temporary construction devices, templates and construction rubbish shall be cleared away where there exist cable layers, cable ducts or tunnels; the construction passage shall be unblocked and coverage plates shall be complete;
d. The construction works that can not be carried out after the laying of cable routes shall be finished beforehand;
e. Water discharge of cable duct shall be free and the installation of doors and windows of the cable room shall be finished.
C． The decorating works of construction engineering caused by the necessity of vacancy-filling, boring or reaming for built-in fittings shall be finished before the startup of an installation finished cable line.
Article 1.0.9 Hot galvanized products shall be applied as steel fixing device for installation of cable and its appendixes with exception of anchor-bolt.
Article 1.0.10 The anti-jamming measures shall be adopted according to design regulations for the cable routes with requirement on anti-jamming.
Article 1.0.11 For the construction and acceptance of cable routes, the regulations in this code shall be executed and the actual national standards or codes concerned shall also be observed.
Chapter 1 General Principles
Chapter 2 Transportation and storage
Chapter 3 Processing and laying of cable tubes
Chapter 4 Manufacture and installation of cable support
Chapter 5 Laying of the cable
Section 1 General regulation
Section 2 Laying of the cable inside production buildings or in tunnels or ditches
Section 3 Laying of the cable inside tubes
Section 4 Laying of directly embedded cables
Section 5 Laying of underwater cables
Section 6 Laying of cables above bridge
Chapter 6 Manufacture of cable terminals and connectors
Section 1 General regulations and preparation works
Section 2 Manufacture requirements
Chapter 7 Fire-fighting and flame retardant
Chapter 8 Hand-over and acceptance of engineering
Annex 1 Explanations on nouns applied in this code
Annex 2 Typical calculation formulae for lateral
Annex 3 Explanations on terms applied in this code
Additional Explanation
Article 1.0.1 This code is formulated with a view to ensure the construction quality of cable installation, to promote the technical improvement of the circuit construction and to ensure the safety work of cable routes.
Article 1.0.2 This code is applicable for the construction and acceptance of the installation engineering of electric power cable routes or control cable routes that work with a voltage of 500 kV or lower.
The installation engineering of cable routes with special requirements such as mines, ships, metallurgy and chemistry, shall meet the corresponding discipline rules.
Article 1.0.3 Installation of cable routes shall be carried out in accordance with approved design.
Article 1.0.4 The transportation and storage of cable and its appendixes shall be in accordance with the requirement of this code. When the product is with special requirement they shall be in accordance with the requirement.
Article 1.0.5 The storage period of cable and its appendixes before installation shall be not longer than 1 year. When a long-term storage is necessary, the period shall be in accordance with special regulations of equipment storage.
Article 1.0.6 The adopted cable as well as its appendixes shall be in accordance with the regulations of the running technical standards of the country and qualified certificates shall be available. The equipment shall be with proper nameplate.
Article 1.0.7 The safety technical measures adopted in construction shall be in accordance with this code as well as the running safety technical standards and product technical documents. The safety technical measures shall be set down beforehand for important construction projects or procedures.
Article 1.0.8 The practice of the construction projects that are related to cable line installation shall be in accordance with the following requirements:
A． The constructional engineering quality of buildings and structures that related to cable line installation shall be in accordance with the concerning regulations in the actual national codes of construction and acceptance of constructional engineering.
B． Before installation of cable routes, the constructional engineering shall meet the following requirements:
a. The pre-embedded fittings shall be in accordance with design and fixed firmly;
b. Surfacing and float work shall be finished where there exist cable ducts, tunnels or vertical shafts;
c. The temporary construction devices, templates and construction rubbish shall be cleared away where there exist cable layers, cable ducts or tunnels; the construction passage shall be unblocked and coverage plates shall be complete;
d. The construction works that can not be carried out after the laying of cable routes shall be finished beforehand;
e. Water discharge of cable duct shall be free and the installation of doors and windows of the cable room shall be finished.
C． The decorating works of construction engineering caused by the necessity of vacancy-filling, boring or reaming for built-in fittings shall be finished before the startup of an installation finished cable line.
Article 1.0.9 Hot galvanized products shall be applied as steel fixing device for installation of cable and its appendixes with exception of anchor-bolt.
Article 1.0.10 The anti-jamming measures shall be adopted according to design regulations for the cable routes with requirement on anti-jamming.
Article 1.0.11 For the construction and acceptance of cable routes, the regulations in this code shall be executed and the actual national standards or codes concerned shall also be observed.
Contents of GB 50168-1992
Chapter 1 General Principles
Chapter 2 Transportation and storage
Chapter 3 Processing and laying of cable tubes
Chapter 4 Manufacture and installation of cable support
Chapter 5 Laying of the cable
Section 1 General regulation
Section 2 Laying of the cable inside production buildings or in tunnels or ditches
Section 3 Laying of the cable inside tubes
Section 4 Laying of directly embedded cables
Section 5 Laying of underwater cables
Section 6 Laying of cables above bridge
Chapter 6 Manufacture of cable terminals and connectors
Section 1 General regulations and preparation works
Section 2 Manufacture requirements
Chapter 7 Fire-fighting and flame retardant
Chapter 8 Hand-over and acceptance of engineering
Annex 1 Explanations on nouns applied in this code
Annex 2 Typical calculation formulae for lateral
Annex 3 Explanations on terms applied in this code
Additional Explanation
