GB 50149-2010Code for construction and acceptance of busbar installation of electric equipment installation engineering (English PDF)

GB 50149-2010 is the English-translated version of 电气装置安装工程 母线装置施工及验收规范.

GB 50149-2010 — 1.0.1 This specification is formulated to ensure the installation quality of hard busbars, flexible busbars, metal-enclosed busbars, gas-insulated metal-enclosed busbars, insulators, fittings, wall bushings and other busbar devices, promote the progress of installation technology, and ensure the safe operation of equipment.

1.0.2 This code is applicable to the construction and acceptance of the installation project of 750kV and below busbar devices. 1.0.3 The installation of busbar devices shall be carried out according to the approved design documents.

1.0.4 The transportation and storage of equipment and equipment shall comply with the provisions of this specification. When the product has special requirements, it should still meet the requirements of product technical documents.

1.0.5 The storage period of equipment and equipment before installation should be one year. When long-term storage is required, the relevant requirements for storage of equipment and equipment in the product technical documents shall be met.

1.0.6 The equipment and equipment used shall comply with the current relevant national standards and shall have qualification certificates. The equipment should have a nameplate.

1.0.7 The equipment and equipment should be inspected in time after arriving at the site, and should comply with the following regulations.

1 The packaging and sealing should be good; 2 Open the box for inspection and inventory, the specifications should meet the design requirements, and the accessories and spare parts should be complete; 3 The technical documents of the product should be complete; 4 The visual inspection of the product should be in good condition.

1.0.8 The construction plan shall comply with this specification and the relevant current national safety technical standards and requirements of product technical documents.

1.0.9 The construction of construction projects related to the installation of busbar devices shall comply with the following regulations.

1 The engineering quality of buildings and structures related to the installation of busbar devices shall comply with the relevant provisions of the current national standard "Unified Standards for Construction and Quality Acceptance of Construction Engineering" GB 50300; when there are special requirements for design and equipment, they shall still meet the requirements of design and equipment requirements; 2 Before the busbar device is installed, the construction project shall meet the following conditions.

1) The foundation and structure meet the design requirements of electrical equipment; 2) After the construction of the roof and floor is completed, no leakage is allowed; 3) The construction of the indoor ground base is completed, and the level of troweling is marked on the wall; 4) The foundation and structure have reached the strength allowed for the installation of equipment, and the walkway boards, railings, ladders and platforms of the high-rise structure are complete and firm; 5) The decoration works that may damage the installed busbar device or the busbar device that cannot be carried out after the installation of the busbar device are all completed; 6) The doors and windows are installed, and the construction road is unobstructed; 7) The reserved holes and embedded parts for installing the busbar device meet the design requirements.

3 Before the busbar device is installed and put into operation, the construction project shall comply with the following regulations.

1) Embedded parts, openings, reaming and other modification works are completed; 2) Protective net doors, railings and all facilities isolated from power receiving parts are complete; 3) The projects that cannot be carried out after receiving power and affect the safety of operation have been completed; 4) The construction facilities have been dismantled and the site has been cleaned up.

1.0.10 The fasteners used for installation of busbar devices shall be galvanized or stainless steel products that meet the current national standards, and the fasteners used outdoors shall be hot-dip galvanized products.

1.0.11 Porcelain parts of insulators and wall bushings shall comply with the current national standard "Technical Conditions for Porcelain Parts of High-Voltage Insulators" GB/T 772 and the relevant technical requirements for electric porcelain products.

1.0.12 The metal components and fittings for fixing the single-phase AC busbar shall not form a closed magnetic circuit. 1.0.13 The construction and acceptance of the busbar device installation project shall not only comply with this specification, but also comply with the current relevant national standards.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 47 pages — is available in the English PDF.

1. 1

   Add to cart

   Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.

2. 2

   Checkout

   Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).

3. 3

   Instant delivery (0–9 sec)

   Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.

4. 4

   Invoice included

   A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.