NB/T 10517-2021Standard for acceptance data of surface coal mine installation engineering (English PDF)

Foreword

This document was issued on 7 January 2021 by the National Energy Administration of the PRC and takes effect on 1 April 2021.

It is a NB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 13.100, Chinese classification D 09.

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

Attention is drawn to the possibility that some of the contents of this document may involve patent rights. The issuing body of this document assumes no responsibility for identifying such patent rights.

This standard was proposed by and is under the jurisdiction of the China National Coal Association.

The main drafting organizations of this standard are: China Coal Pingshuo Group Co., Ltd.; Coal Science and Technology Research Institute Co., Ltd.; China National Coal Group Corp.; CCTEG Energy Science and Technology Development Co., Ltd.; China University of Mining and Technology; Shenhua Zhunneng Group Co., Ltd.; and Hulunbuir Dongming Mining Co., Ltd.

The main drafters of this standard are: Wang Xiangsheng, Liu Feng, Ding Xinqi, Liu Daowen, Chen Zaiming, Zhou You, He Changbin, Guo Sheng, Ai Chang, Fu Tianguang, Cao Kenan, Liu Lijie, Wang Guilin, Zhong Xiaoyong, Li Wei, Chen Junbin, Zhang Yan, Yang Yang, Zhou Wei, Chen Yanlong, Liang Yujun, Shi Lingjie, Xing Xiangliang and Chen Bingwen.

Publication data

Designation: NB/T 10517-2021, an energy industry standard of the People's Republic of China, published under the NB series.

Chinese title as printed on the cover: Lu tian mei kuang jian kuang an zhuang gong cheng yan shou zi liao biao zhun.

English title as printed on the cover: Standard for acceptance data of surface coal mine installation engineering.

Classification: ICS 13.100; Chinese standard classification code D 09.

Issued on 7 January 2021 by the National Energy Administration and implemented from 1 April 2021.

Structure of the document: a foreword, eight clauses and nineteen record forms; the front matter is numbered in roman figures and the body in arabic figures, the body running to page 58 and beyond according to the official table of contents.

No superseded standard is declared on the cover; the companion document for the quality requirements themselves is NB/T 10515-2021.

1 Scope

NB/T 10517-2021 fixes the acceptance documentation required for the installation works carried out while building an open pit coal mine in China. A surface mine is commissioned as a chain of fixed plant - the primary and semi-mobile crushing stations, the belt conveyor system that carries coal and waste out of the pit, the dewatering and drainage installations, and the electrical distribution that feeds all of it - and each of those has to be handed over with a record that proves it was installed correctly. The standard defines the terms, the basic requirements on who prepares and who checks each record, and the way the documentation is organised into files and volumes. It then specifies, installation by installation, the acceptance data that must be produced: the equipment arrival and inspection records, the foundation and setting-out records, the alignment and levelling measurements with their permitted deviations, the bolting and welding records, the electrical testing and insulation measurements, the no-load and load trial running records, and the sign-offs at each stage. Tables give the measured items, their tolerances and the method of measurement for each class of equipment. The compilation, checking, signature and filing of the complete acceptance package, and its handover to the operating organisation, close the standard. Note that the printed English title omits mine construction, which the Chinese title carries.

This standard specifies the general provisions for the acceptance of surface coal mine installation engineering, the acceptance record forms for the installation of stationary and semi-mobile crusher equipment, the acceptance record forms for the installation of belt conveyor equipment, the acceptance record forms for the installation of dewatering system equipment, the acceptance record forms for the installation of water proofing and drainage system equipment, and the requirements for the acceptance record forms for the installation of power distribution system equipment.

This standard is applicable to the compilation of the acceptance data of installation engineering within the excavation area and the dump area of a surface coal mine.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the edition cited applies to this document. For undated references, the latest edition of the referenced document (including all amendments) applies to this document.

GB/T 7251.1, Low-voltage switchgear and controlgear assemblies - Part 1: General rules.

GB 50119, Technical code for application of concrete admixtures.

GB 50149, Code for construction and acceptance of bus bar installation in electric equipment installation engineering.

GB 50150, Standard for hand-over test of electric equipment in electric equipment installation engineering.

GB 50171-2012, Code for construction and acceptance of panels, cabinets and secondary circuit wiring in electric equipment installation engineering.

GB 50184, Code for acceptance of construction quality of industrial metallic piping engineering.

GB 50231, General code for construction and acceptance of mechanical equipment installation engineering.

GB 50268-2008, Code for construction and acceptance of water and sewerage pipeline works.

GB 50270-2010, Code for construction and acceptance of conveying equipment installation engineering.

GB 50683, Code for acceptance of construction quality of field equipment and industrial pipe welding engineering.

GB 51062-2014, Code for construction of coal mine equipment installation engineering.

JGJ 55, Specification for mix proportion design of ordinary concrete.

NB/T 10515-2021, Standard for quality acceptance of surface coal mine installation engineering.

3 General provisions

3.1 Composition of the acceptance data. The acceptance data of surface coal mine equipment installation engineering are composed mainly of four parts: the inspection lot acceptance records of sub-item works, the quality acceptance records of sub-item works, the quality acceptance records of sub-division works, and the quality acceptance records of unit works.

3.2 Inspection lot acceptance record of a sub-item work. The inspection lot quality acceptance record of a sub-item work shall be filled in by the construction unit and confirmed by the supervision unit; the owner, the supervision unit and the construction unit shall carry out the acceptance together.

Inspection lot quality acceptance is divided into dominant items and general items. Dominant items are the inspection items that have a decisive influence on the basic quality of the inspection lot; they shall all be qualified. General items are allowed a certain deviation, but the deviation shall not affect the overall quality of the sub-division work.

3.3 Acceptance record of a sub-item work. The acceptance of a sub-item work shall be carried out after the acceptance of all the inspection lots contained in that sub-item work has been completed. The sub-item work quality acceptance record shall be filled in by the construction unit and confirmed by the supervision unit; the owner, the supervision unit and the construction unit shall carry out the acceptance together.

3.4 Acceptance record of a sub-division work. The acceptance of a sub-division work shall be carried out after the acceptance of all the sub-item works contained in that sub-division work has been completed. The sub-division work quality acceptance record shall be filled in by the construction unit and confirmed by the supervision unit; the owner, the supervision unit and the construction unit shall carry out the acceptance together.

3.5 Acceptance record of a unit work. The acceptance of a unit work shall be carried out after the acceptance of all the sub-division works contained in that unit work has been completed. The unit work quality acceptance record shall be filled in by the construction unit and confirmed by the supervision unit; the owner, the supervision unit and the construction unit shall carry out the acceptance together.

4 Acceptance record forms for the installation of stationary and semi-mobile crusher equipment

4.1.1 The unit work quality acceptance record is the summary table for the completion acceptance of the quality of the unit work; it is used together with the unit work quality control data check record form and the unit work perceptual quality inspection record form.

4.1.2 The unit work quality acceptance record is archive data to be kept permanently by the archive department of the owner and to be kept for a long term by the archive management department of the construction unit.

4.1.3 The front part of the unit work quality acceptance record is filled in by the construction unit, and the acceptance conclusion is filled in by the professional engineer of the supervision (owner) unit. The acceptance conclusion is agreed jointly by all the parties taking part in the acceptance and is filled in by the owner; it gives an evaluation of whether the engineering quality complies with the design and code requirements and of the overall quality level, and may be filled in as acceptance passed, acceptance qualified. When the design unit, the construction unit, the supervision unit and the owner all agree to the acceptance, the person in charge of the (project) of each unit shall sign in person, so as to show responsibility for the engineering quality, and shall affix the official seal of the unit. The unit work quality completion acceptance record form for the installation of stationary and semi-mobile crusher equipment is given in Table 1.

Table 1, Unit work quality completion acceptance record form for the installation of stationary and semi-mobile crusher equipment. The heading of the form records the name of the unit work, stated as installation of stationary and semi-mobile crusher equipment, together with the quantity of work, the construction unit, the person in charge of technical matters, the date of commencement, the project manager, the person in charge of project technical matters and the date of completion.

Item 1 of Table 1, sub-division works: the acceptance record states the total number of sub-division works, the number of sub-division works checked, and the number of sub-division works complying with the standard and the design requirements; the entry reads two sub-division works in total, two sub-division works checked, and two sub-division works complying with the standard and the design requirements.

Item 2 of Table 1, check of the quality control data: the acceptance record states the total number of items, the number of items found on examination to comply with the requirements, and the number of items confirmed to comply with the requirements of the codes.

Item 3 of Table 1, acceptance of the perceptual quality: the acceptance record states the total number of items sampled, the number of items complying with the requirements and the number of items not complying with the requirements.

Item 4 of Table 1, comprehensive acceptance conclusion: a single entry into which the conclusion agreed by the parties is written.

Table 1 (continued), units taking part in the acceptance: the owner, with the person in charge of the unit (project); the supervision unit, with the chief supervision engineer; the construction unit, with the person in charge of the unit; and the design unit, with the person in charge of the unit (project). Each block carries a signature and seal and the year, month and day.

Requirements for filling in Table 1, item 1, the heading: sub-item 1) the name of the work and the name of the construction unit shall be written in full and shall be identical with those in the quality acceptance forms of the sub-division works and the sub-item works; sub-item 2) the person in charge of technical matters means the chief engineer or the deputy manager of the construction enterprise in charge of technical work.

Requirements for filling in Table 1, item 2, sub-division works: the construction unit fills in the acceptance record column; it states how many sub-division works there are in total, how many have been accepted, and how many have been accepted as complying with the standard and the design requirements. When all the sub-division works examined and accepted comply with the requirements, the professional engineer of the supervision unit writes the conclusion acceptance qualified in the acceptance conclusion column.

Requirements for filling in Table 1, item 3, comprehensive acceptance conclusion: it is determined jointly by all the parties taking part in the acceptance and is filled in by the owner; it may be filled in as acceptance passed.

4.2.1 The sub-division work quality acceptance summary record form is the summary table for the completion acceptance of the quality of the sub-item works.

4.2.2 The sub-division work quality completion acceptance summary record form shall be filled in by the construction unit; the comprehensive acceptance conclusion shall be determined jointly by all the parties taking part in the acceptance and shall then be filled in by the owner; the person in charge of each participating unit shall sign and the official seal of the unit shall be affixed. The sub-division work quality completion acceptance summary record form is given in Table 2.

Table 2, Sub-division work quality completion acceptance summary record form. The heading records the name of the unit work, stated as installation of stationary and semi-mobile crusher equipment, and the quantity of work. The body of the form has six numbered lines, each with the name of the sub-item work, the number of inspection lots, the result of the check and evaluation by the construction unit, and the acceptance opinion. The form ends with the inspection conclusion of the construction unit, signed by the project manager with the year, month and day, and the comprehensive verification conclusion, signed by the chief supervision engineer (representative of the owner) with the year, month and day.

4.3.1 The quality acceptance of a sub-item work shall be organized by the supervision engineer (the professional technical person in charge of the project of the owner), who shall arrange for the professional technical persons in charge of the project and others to carry out the acceptance and to record it in the form. The sub-item work quality acceptance record form is given in Table 3.

4.3.2 Provisions for filling in the sub-item work quality acceptance record. The following points shall be observed in the quality acceptance of a sub-item work.

4.3.2 a) Check whether the inspection lots cover the whole work, whether any part has been omitted, and whether all the inspection lots contained have been accepted as qualified.

4.3.2 b) Register and arrange the data of the inspection lots in sequence; the acceptance records of the inspection lots shall be complete.

4.3.3 The main inspection items of the inspection lot quality acceptance record forms of the sub-item works shall be filled in according to the contents of the dominant items and the general items for the installation of stationary and semi-mobile crushers given in Clause 5 of NB/T 10515-2021.

Table 3, Sub-item work quality acceptance record form. The heading records the name of the unit work, stated as installation of stationary and semi-mobile crusher equipment, and the quantity of work; it then records the unit work, the construction unit, the sub-division work, the subcontracting unit, the number of inspection lots, the construction project manager and the subcontracting project manager. The body has ten numbered lines, each with the part or section of the inspection lot, the acceptance result of the construction unit and the acceptance conclusion of the supervision (owner) unit, followed by three blank lines. The form ends with the inspection and acceptance result of the subcontracting unit and the inspection and acceptance result of the construction unit, each signed by the professional technical person in charge of the project with the year, month and day, and with the acceptance result of the supervision (owner) unit, signed by the supervision engineer (the professional technical person in charge of the project of the owner) with the year, month and day.

4.4 Inspection lot quality acceptance record of a sub-item work. The quality of the dominant items shall be inspected at selected points, and all the inspection points shall comply with the qualified quality provisions; where 75 percent or more of the measuring points among the inspection points comply with the qualified quality provisions, the remaining measuring points shall not affect safe use.

The quality of the general items shall be inspected at selected points; the pass rate of the measuring points of each inspection item shall reach 70 percent or more, and the remaining measuring points shall not affect safe use.

When the dominant items reach 75 percent or more and the general items reach 70 percent or more, the acceptance conclusion of the supervision (owner) unit shall be filled in as acceptance qualified. The inspection lot construction quality acceptance records of the individual sub-item works are given in Table 4 to Table 19.

Table 4, Inspection lot construction quality acceptance record for the sub-item work of shims, anchor bolts and secondary grouting. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the construction unit, the sub-division work, stated as mechanical installation, the project manager, the person in charge of technical matters, the sub-item work, stated as shims, anchor bolts and secondary grouting, the subcontracting unit, the part or section of the inspection lot, the subcontracting project manager, the person in charge of subcontracting technical matters, the standard on which the work is based, the team leader and the date of acceptance.

Table 4, dominant item 1: the strength of the equipment foundation shall comply with the requirements of the design technical documents.

Table 4, dominant item 2: before the equipment is set in place, a layout drawing of the centre line plates and the elevation datum points shall be prepared according to the construction drawing and the survey control network; the centre line plates and the elevation datum points shall be set out according to the layout drawing and shall be marked by survey. Permanent centre line plates and elevation datum points shall be embedded for the main equipment and for continuous production lines.

Table 4, dominant item 3: the specification and the tightening of the anchor bolts shall comply with the requirements of the design documents.

Table 4, dominant item 4: where the shims are placed by the pressure grouting method, the temporary shims shall be removed after the grouting layer has reached 75 percent of the specified strength, and the final alignment and levelling of the mechanical equipment shall then be carried out.

Table 4, dominant item 5: the preparation, the performance and the curing of the grout used for the reserved anchor bolt holes or between the base of the mechanical equipment and the foundation shall comply with the relevant provisions of GB 50119 and JGJ 55.

Table 4, dominant item 6: before the reserved holes are grouted, fine aggregate concrete should be used; its strength shall be the same as, or higher than, the strength of the foundation concrete. The grout shall be tamped compactly during grouting, so that the anchor bolts are not made to incline and the accuracy of the equipment installation is not affected.

Table 4, dominant item 7: the thickness of the grouting layer shall not be less than 20 mm. Where the requirement for contact between the grouting layer and the equipment base is high, non-shrink concrete should be used.

Table 4 (continued), general item 1: the axis position, the elevation and the dimensions of the equipment foundation shall comply with the requirements of the design documents and with the relevant provisions of GB 50231.

Table 4 (continued), general item 2: oil stains, rubble, mud, accumulated water and sundries on the surface of the equipment foundation and in the reserved holes of the anchor bolts shall all be cleaned away, and the threads and the nuts of the embedded anchor bolts shall be well protected.

Table 4 (continued), general item 3: oil stains and oxide scale on the anchor bolts shall be cleaned away, and a suitable amount of grease shall be applied to the threaded part.

Table 4 (continued), general item 4: the anchor bolts in the reserved holes shall be installed vertically; the distance from any part of a bolt to the wall of the hole shall not be less than 15 mm, and the bolt shall not touch the bottom of the hole.

Table 4 (continued), general item 5: after the nuts of the anchor bolts have been tightened, the exposed length of the bolt should be one to five thread pitches, and the exposed lengths shall be consistent with one another.

Table 4 (continued), general item 6: the nuts shall be tightened only after the concrete in the reserved holes has reached 75 percent or more of the design strength, and the tightening force applied to each nut shall be uniform.

Table 4 (continued), general item 7: after grouting, the part of the anchor bolts projecting above the foundation shall be vertical; after the equipment base has been fitted over the anchor bolts there shall be an allowance for adjustment, and none of the anchor bolts shall be jammed.

Table 4 (continued), general item 8: the position of the equipment shims shall comply with the relevant provisions of GB 50231.

Table 4 (continued), general item 9, first requirement for the use of shim sets: the number of layers in a shim set should not exceed five layers, a pair of taper shims counting as one layer.

Table 4 (continued), general item 9, second requirement for the use of shim sets: when flat shims are placed, the thick ones should be placed at the bottom and the thin ones in the middle, and the thinnest should not be less than 2 mm.

Table 4 (continued), general item 9, third requirement for the use of shim sets: except for cast iron shims, the individual shims shall be tack welded firmly to one another.

Table 4 (continued), general item 10: each shim set shall be placed neatly and stably and shall be in good contact.

Table 4 (continued), general item 11, first projection requirement: after the machine has been levelled, flat shims should project 10 mm to 30 mm beyond the edge of the equipment base.

Table 4 (continued), general item 11, second projection requirement: after the machine has been levelled, taper shims should project 10 mm to 50 mm beyond the edge of the equipment base.

Table 4 (continued), general item 11, third projection requirement: the length by which the shim set extends into the ground area under the equipment base shall exceed the centre of the anchor bolts of the equipment.

Table 4 (continued), general item 12: after equipment installed on a steel structure has been levelled, its shims shall be tack welded firmly to the steel structure.

Table 4 (continued), general item 13: outer formwork shall be erected before grouting; the distance from the outer formwork to the outer edge of the equipment base should not be less than 60 mm, and after the formwork has been removed the surface shall be plastered.

Table 4 (continued), general item 14: where the whole area under the equipment base does not need to be grouted but the grouting layer has to bear the load of the equipment, inner formwork shall be erected.

Table 4 (continued), closing blocks: the inspection and acceptance result of the subcontracting unit and the inspection and acceptance result of the construction unit, each signed by the professional quality inspector of the project with the year, month and day, and the acceptance result of the supervision (owner) unit, signed by the supervision engineer (the professional technical person in charge of the project of the owner) with the year, month and day.

Table 5, Inspection lot construction quality acceptance record for the sub-item work of apron feeder installation. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the sub-division work, stated as mechanical installation, and the sub-item work, stated as apron feeder installation, together with the construction unit, the project manager, the person in charge of technical matters, the subcontracting unit, the part or section of the inspection lot, the subcontracting project manager, the person in charge of subcontracting technical matters, the standard on which the work is based, the team leader and the date of acceptance.

Table 5, dominant item 1: the installation of the apron feeder shall comply with the provisions for apron conveying equipment given in Clause 4 of GB 50270-2010.

Table 5, general item 1: the engineering design documents and the technical documents supplied with the machine shall be complete, including the quality acceptance reports and the material analysis reports of key parts such as the chain; the installation positions of the parts and the quality of the wheel bodies shall be consistent with the requirements of the drawings.

Table 5, general item 2: the name, the model, the specification and the quantity of the equipment and the materials shall agree with the equipment packing list, and product certificates of conformity shall be available.

Table 5, general item 3: the equipment shall be free from deformation, damage and corrosion.

Table 5, general item 4: the steel structural members shall have the specified weld inspection records, pre-assembly inspection records and quality certification documents.

Table 5, general item 5: before the equipment is set in place, the as-measured data of the foundation and of the supporting building structure shall be verified against the engineering design construction drawing; the longitudinal and transverse centre lines and the datum elevation of the main apron feeder equipment shall be determined and shall be taken as the datum for the installation of the equipment.

Table 6, Inspection lot construction quality acceptance record for the sub-item work of rail-mounted double toothed roll crusher installation. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the sub-division work, stated as mechanical installation, and the sub-item work, stated as rail-mounted double toothed roll crusher installation, together with the same administrative entries as the preceding forms.

Table 6, dominant item 1: the levelness of the longitudinal and transverse axes of the two rolls of the machine body shall be less than 0.02 percent.

Table 6, dominant item 2, first permissible deviation for the installation of the double toothed roll crusher: longitudinal centre line, not more than 10 mm.

Table 6, dominant item 2, second permissible deviation: transverse centre line, not more than 10 mm.

Table 6, dominant item 2, third permissible deviation: height deviation, plus or minus 20 mm.

Table 6, dominant item 2, fourth permissible deviation: out-of-level of the toothed rolls, not more than 0.015 percent.

Table 6, general item 1: when the rail-mounted double toothed roll crusher is installed, the chassis of the crusher shall be mounted on the track, the rollers shall be in good contact with the rail surface, and the machine body and the chassis shall be connected as required by the product technical documents.

Table 6, general item 2: where the rail-mounted double toothed roll crusher is used in a fixed position, the rail clamps shall be clamped firmly.

Table 6, general item 3, first permissible deviation for the installation of the track of the rail-mounted double toothed roll crusher: longitudinal centre line of the track, not more than 10 mm.

Table 6, general item 3, second permissible deviation: transverse centre line of the track, not more than 20 mm.

Table 6, general item 3, third permissible deviation: elevation of the rail surface, plus or minus 20 mm.

Table 6, general item 3, fourth permissible deviation: difference in height between the front and the rear of the rail surface, not more than 10 mm.

Table 6, general item 3, fifth permissible deviation: gauge, minus 2 mm to 5 mm.

Table 6, general item 3, sixth permissible deviation: straightness of the rail, not more than 0.1 percent.

Table 6, general item 3, seventh permissible deviation: bending over the full length of the rail, not more than 5 mm.

Table 7, Inspection lot construction quality acceptance record for the sub-item work of trackless double toothed roll crusher installation. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the sub-division work, stated as mechanical installation, and the sub-item work, stated as trackless double toothed roll crusher installation.

Table 7, dominant item 1: when the trackless double toothed roll crusher is installed, the lower machine body (the chassis) shall first be levelled and aligned, and the upper machine body shall then be connected to the lower machine body.

Table 7, dominant item 2: the levelness of the longitudinal and transverse axes of the two rolls of the machine body shall be less than 0.02 percent.

Table 8, Inspection lot construction quality acceptance record for the sub-item work of the installation of hydraulic couplings, reducers and belt pulleys. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the sub-division work, stated as mechanical installation, and the sub-item work, stated as installation of hydraulic couplings, reducers and belt pulleys.

Table 8, dominant item 1: the installation of the hydraulic coupling shall comply with the provisions of A.7.11 of GB 51062-2014.

Table 8, dominant item 2: the installation of the reducer shall comply with the relevant provisions of GB 50231.

Table 8, dominant item 3: the assembly of the belt pulley set shall comply with the provisions of A.5 of GB 51062-2014.

Table 9, Inspection lot construction quality acceptance record for the sub-item work of hydraulic station installation. The heading records the unit work, stated as installation of stationary and semi-mobile crusher equipment, the sub-division work, stated as mechanical installation, and the sub-item work, stated as hydraulic station installation.

Table 9, dominant item 1: in addition to complying with 13.7.2 and 13.9.2 of GB 51062-2014, the installation of the hydraulic station shall also include the pickling of each oil pipe; the oil pipes shall be laid smoothly and neatly, and the cylinder bodies and the piston surfaces of the oil cylinders shall be free from scratches and deformation.

5 Acceptance record forms for the installation of belt conveyor equipment

Clause 5 of the standard gives the complete set of acceptance record forms for the sub-division unit belt conveyor equipment installation, arranged in the same four levels as Clause 4 and occupying pages 21 to 37 of the official text.

5.1 Unit work quality completion acceptance record form for belt conveyor equipment installation, on page 21 of the official text.

5.2 Sub-division work quality completion acceptance summary record form for belt conveyor equipment installation, on page 22 of the official text.

5.3 Sub-item work quality acceptance record for belt conveyor equipment installation, on page 23 of the official text.

5.4 Inspection lot quality acceptance records of the sub-item works of belt conveyor equipment installation, beginning on page 24 of the official text.

6 Acceptance record forms for the installation of dewatering system equipment

Clause 6 of the standard gives the complete set of acceptance record forms for the sub-division unit dewatering system equipment installation, arranged in the same four levels as Clause 4 and occupying pages 38 to 52 of the official text.

6.1 Unit work quality completion acceptance record form for dewatering system equipment installation, on page 38 of the official text.

6.2 Sub-division work quality completion acceptance summary record form for dewatering system equipment installation, on page 39 of the official text.

6.3 Sub-item work quality acceptance record for dewatering system equipment installation, on page 40 of the official text.

6.4 Inspection lot quality acceptance records of the sub-item works of dewatering system equipment installation, beginning on page 41 of the official text.

7 Acceptance record forms for the installation of water proofing and drainage system equipment

Clause 7 of the standard gives the complete set of acceptance record forms for the sub-division unit water proofing and drainage system equipment installation, arranged in the same four levels as Clause 4 and occupying pages 53 to 55 of the official text.

7.1 Unit work quality completion acceptance record form for water proofing and drainage system equipment installation, on page 53 of the official text.

7.2 Sub-division work quality completion acceptance summary record form for water proofing and drainage system equipment installation, on page 54 of the official text.

7.3 Sub-item work quality acceptance record for water proofing and drainage system equipment installation, on page 54 of the official text.

7.4 Inspection lot quality acceptance records of the sub-item works of water proofing and drainage system equipment installation, beginning on page 55 of the official text.

8 Acceptance record forms for the installation of power distribution system equipment

Clause 8 of the standard gives the complete set of acceptance record forms for the sub-division unit power distribution system equipment installation, arranged in the same four levels as Clause 4 and beginning on page 56 of the official text.

8.1 Unit work quality completion acceptance record form for power distribution system equipment installation, on page 56 of the official text.

8.2 Sub-division work quality completion acceptance summary record form for power distribution system equipment installation, on page 57 of the official text.

8.3 Sub-item work quality acceptance record for power distribution system equipment installation, on page 57 of the official text.

8.4 Inspection lot quality acceptance records of the sub-item works of power distribution system equipment installation, beginning on page 58 of the official text.

The electrical forms of Clause 8 are supported by the electrical references cited in Clause 2, namely GB/T 7251.1 for low-voltage switchgear and controlgear assemblies, GB 50149 for bus bar installation, GB 50150 for the hand-over testing of electric equipment and GB 50171-2012 for panels, cabinets and secondary circuit wiring.