【 Weak current College 】 electrical engineering, intelligent building engineering construction quality overseeing implementation regulation (model) 5

6.8 common lightning protection and earthing

6.8.1 grounding installation:

(1) embedding depth less than 0.6m, location, number of groups do not meet design requirements;

(2) grounding, Earth wire welding multiples, welding quality is not good, no corrosion, material does not meet the requirements.

6.8.2 lightning protection facilities installation does not meet the requirements:

(1) lightning network (PIN) to protect the corners, improper installation location; jieshan Qi and pole with welding, unused clamp fixed;

(2) improper lightning line spacing, Fulcrum settlement, compensation is not done deformation joint treatment, not covered with zinc-coated steel;

(3) lightning conductor connection quality is poor when welding, welding, welding multiples enough, anti-rust coating on one side; improper

(4) lightning conductor bending radius does not meet the requirements, the line segment is not straight, cited by embedding do undocking clamp or misaligned, improper protection methods;

(5) and the roof structure is not connected to highlight the metal, or metal structure itself non-welding, no single cited lightning conductor or cross-welding connection header processing;

(6) use structure primary reinforcement for down lead time, use only single-reinforced or non-reinforced dual root, and the midway point location transform, welding quality is not good or not, the structure had cited on line section does not conform to the requirements;

(7) the holiday lights, lanterns along the lightning conductor of the parallel laying, does not comply with the safety requirements;

(8) above-ground parts of human touch lightning conductor protective measures inappropriate;

(9) the existing lightning protection point outside of the building, not set lightning system;

6.8.3 ground (zero line) installation does not meet the requirements

(1) ground (zero) no spring washer screws;

(2) zero line and protect the zero line number received mixed;

(3) because of the insulation damage may live electrical installations, its very live metal parts without ground fault protection;

(4) metal lamp distance to ground when 2.4m following;

(5) to (zero) line take string connection method (especially electrical devices when not separate earthing);

(6) neutral earthing, the power supply system, the zero line and do protect the zero line, the zero line is less than the specified value.

6.9 and other professional with no coordination of common diseases

6.9.1 cast structure, concealed duct failed to timely after reinforced fastening, affecting construction installation progress or construction progress, not only consider the appropriate arrangements for the electrical construction time leak compress or minority;

6.9.2 brick structure, should be embedded in the wire box, pipe leak buried or little buried; structure construction hole drilling after tick off rib fabric damage;

6.9.3 buried holes located to civil nuisance, civil protection is not that the finished product, and affected the electrical construction quality, interdependent, interrelated;

6.9.4 shotcrete, electrical appliances without blocking protection, pollution, pollution of the wall when electrical thread;

6.9.5 design week, the lack of professional contact, resulting in the same location, electrical conduit and other professional pipeline conflict.

7 the electrical engineering, intelligent building engineering supervision and control of content and the measures

7.1 electrical engineering

7.1.1 design document review and optimization:

Electrical engineer first should be familiar with the electrical installation design drawings and specifications to attend Checkup and record, a comprehensive understanding of design requirements and usage requirements.

(1) the composition of the design file content is consistent with the standards, specifications;

(2) design description, project number, equipment and materials are consistent with construction drawings, construction plans are consistent with each other; design file for errors and omissions;

(3) indoor equipment layout and line routes, compliance and actual on site;

(4) the introduction of new products, whether specified product sources, processing non-stereotyped products have sufficient copies of the factory production drawings and other necessary information;

(5) file for the full and complete annexed Protocol, such as power supply agreements, Foreign Affairs Committee with project agreement, the urban construction sector approved line path of files, etc.;

(6) supply scheme, are familiar with, understand and master the supply and distribution system components and load switching system, it is important to understand the logical relationship between professional system function and load conditions, important data should review.

7.1.2 electrical installation construction Enterprise qualification:

(1) engaged in construction electrical engineering construction companies must have the appropriate licenses and certificates, qualifications and competencies, and contracting project scope and technical requirements.

(2) electrical installation works by contracting units subcontracting projects, the total package units dealing with project quality overall responsibility. Subcontractors should press the corresponding quality approval standard, an assessment of whether the commitment of sub-item, partial engineering quality grades. And the assessment of results and information to contracting units and supervision unit.

Construction unit direct subcontracting, the provisions by agreement.

Foreign Enterprise contract for electrical installation works to verify their qualification, performance materials, a real and effective, has assumed the sub-item project construction qualifications and abilities.

(3) in the electrical installation of the enterprise, you must have a sound quality assurance system and technology management system and installation quality is responsible for the construction site must meet the following conditions:

1) construction site must be a clear leader in electrical engineering, engineering quality overall responsibility for, and is responsible for construction site temporary electricity technology security, develop construction organization, management and security measures.

2) ShiWork site based electrical technical staff in charge of technology, familiar with the electric installation of construction technology and technical indicators on the quality of the electrical installation of negative direct responsibility.

3) construction site quality inspection personnel are dedicated to upholding three inspection system, fill out the information on the range of valid records.

4) understand construction enterprise performance, credibility, quality and composition, the approach still requires further study.

7.1.3 electrical installation equipment, equipment for identification:

(1) use of the equipment and equipment shall comply with the provisions of the existing technical standards, audit proof, technical certificate factory or warranty. The device should have a nameplate and safety certification. Import of equipment required by the national inspection authorities check.

(2) the implementation of the equipment, equipment order time, conditions of delivery and the additional technical specifications. Understand and master the key equipment of quality control, testing, installation process, if necessary, to the manufacturers site visits.

(3) devices, equipment, transport, custody should conform to the specifications, when a product has special requirements, and should comply with the requirements of the product. Custody for a period of 1 year and below, should be consistent with the equipment and equipment for the custody of the special provisions.

(4) to supervise the contracting units in time machine and equipment into the check after, including:

1) packing and sealing, no defects;

2) out of the box inventory and records, specifications should meet the design requirements, accessories, spare parts should be complete;

3) according to the specifications do Visual inspection, the test shall be carried out by the relevant departments;

4) product technical documentation should be complete.

(5) where the use of new materials, new products should have qualified test reports and related sectors of the forensic files. Imported equipment and demolition, alterations in use by the relevant departments of used equipment, used equipment should meet or comply with current standards.

7.1.4 technical preparation steps and civil construction conditions:

(1) implementation of the construction, design, contracting units electrical professional personnel, contact information, communication channels, clear roles and permissions, necessary arrangements in construction units and power supply sector.

(2) participation in the design and construction construction organization plan review, focused review of electrical installation works and construction site temporary electricity organization design; management engineer in addition to text, you should review with the Contracting unit of the technical staff talk about the programme's authenticity and credibility. Targeted development supervision measures. Mastery of specific construction plan, quality assurance measures. Review of the relevant processes and cohesion, cross-cutting relationships and reservation sites, embedded parts of protection means and quality measures, and finished product protection means.

(3) participate in audit project implementation schedule, major general review of the electrical installation work is consistent with the overall duration control objectives, whether reasonable arrangement of the electrical installation in construction, as well as the coordination of the construction programme and rationality. Understanding the project schedule, labor and equipment.

(4) construction site temporary electricity organization plan is to ensure the smooth progress of construction. Construction requirements to ensure the safe and reliable, accurate calculations construction electricity load; reasonable distribution of the load; the correct selection of wire cross sections and switch settings, use appliances after passing through checking. permitted use

(5) supervision engineer organizations civil and electrical professionals intermediate inspection, electrical equipment installation engineering construction should meet the following conditions:

Roof floor slab construction 1), shall be omitted;

2) Interior ground base construction has been completed, and mark the wall; ground elevation

3) embedded parts and reserved hole meet the design requirements, embedded parts securely;

4) concrete foundation and structure supports attained allows the strength and stiffness, its coordinates, elevation, dimensions, should meet the design requirements and the relevant provisions of the construction specifications. The device supports the welding quality requirements;

5) template, construction equipment and sundries clean and sufficient installation space, construction of roads;

6) pit has been backfilled to RAM;

7) civil structure when electrical construction personnel of acceptance shall be interior horizontal lines, walls line, click check to verify the reserved construction hole and Yuman, boxes. Comply with the requirements of the stability after boxes.

All concealed electric engineering and installation of the pipeline will sweep through the pipeline, check the location and pipeline meets the design requirements.

7.2 intelligent building engineering

7.2.1 check engineering design and construction drawings of integrity, intelligent building project must be approved for construction drawing design files, participate in the checkup and record, design changes according to the specification requirements checklist for completing the design change.

7.2.2 check construction site quality management inspection system and construction of technical measures.

7.2.3 must follow the qualified technical documents and project design documents, equipment, materials and software for entry and acceptance. Project of introduction of new materials, new products should comply with the national and industry requirements.

7.2.4 product quality check should include the People's Republic of China compulsory product certification product catalogue or implement production license and online license management product, are not included in the mandatory certification product catalog or not implemented production license and online license management product should programs through product inspection before use.

7.2.5 hardware equipment and materials for quality inspection priorities should include the security, reliability, and electromagnetic compatibility, reliability testing can refer to the manufacturers to produce reliability test report.

3.2.6 software product quality should be the following checks:

(1) commercialSoftware such as operating system, database management systems, application software, information security software for network management software should make use of license and use range checking;

(2) the contractor by the system of the user application software and user configuration software and interface software, application software, in addition to

Rows function testing and system testing, you should make capacity, reliability, security, resiliency, compatibility, self diagnosis, functional testing, and software serviceability;

(3) all programming software should provide complete documentation (including the software information and program structure description, installation instructions, use and maintenance manual, etc.).

7.2.7 equipment and materials for approaching acceptance of specific requirements are as follows:

(1) guarantee the appearance of the good, the product without injury, no flaws, the variety, quantity, place of origin in compliance with the requirements;

(2) equipment and software product quality checks should perform these rules, the provisions of section 3.2;

(3) in accordance with established procedures approved the use of new materials and new product except in compliance with the provisions of this article, shall provide the competent authorities provided for in the relevant supporting documents;

(4) the import of products in addition to complying with the provisions of this standard, should provide a certificate of origin and the inspection certificate, quality certification, inspection reports and the installation, use and maintenance manual and other documentation for Chinese texts (or with Chinese translation).

7.2.8 project implementation should do before and the building structure, building decoration, architecture, water and heating, electrical, ventilation and air conditioning and elevator and other branches of engineering interface confirmation, should do well concealed work check acceptance and process check acceptance.

7.2.9 on-site observation and checking construction drawings, random testing of the engineering equipment installation quality checks and impression quality acceptance.

7.2.10 system detection should satisfy the following conditions;

(1) the system installation is complete, has carried out the set time of the trial operation;

(2) provide the corresponding technical file and the project implementation and quality control records.

Pursuant to a contract the technical documentation and design documents and specification requirements of test items, testing and test methods, the development of system test plan and approved by the inspection bodies.

7.2.11 other measures may refer to the rules of the electrical engineering section.