SANS 10299-6-2009 Development maintenance and management of groundwater resources Part 6 The installation and commissioning of pumping equipment for production boreholes《地下水资源的开发、维.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22190-4 SANS 10299-6:2009Edition 1.2Any reference to SABS 0299-6 is deemedto be a reference to this standard(Government Notice No. 1373 of

4、 8 November 2002)SOUTH AFRICAN NATIONAL STANDARD Development, maintenance and management of groundwater resources Part 6: The installation and commissioning of pumping equipment for production boreholes Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001T

5、el: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS SANS 10299-6:2009 Edition 1.2 Table of changes Change No. Date Scope Amdt 1 2003 Amended to update referenced standards and to delete the definitions, since reference has now been made to SANS 10299-0. Amdt 2 2009 Amended to change the des

6、ignation of SABS standards to SANS standards, to update the introductory paragraph to the normative references clause, to update referenced standards, and to move reference to national legislation to the foreword. Foreword This South African standard was approved by National Committee SABS SC 138B,

7、Water supply and sanitation Equipment and systems Ground water extraction, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This document was published in January 2009. This document supersedes SANS 10299-6:2003 (edition 1.1). Referen

8、ce is made in the note to 5.1.5 to “relevant national legislation”. In South Africa this means the Occupational Health and Safety Act, 1993 (Act No. 85 of 1993). Amdt 2 A vertical line in the margin shows where the text has been technically modified by amendment No. 2. SANS 10299 consists of the fol

9、lowing parts, under the general title Development, maintenance and management of groundwater resources: Part 0: Glossary of terms. Part 1: The location and siting of water boreholes. Part 2: The design, construction and drilling of boreholes. Part 4: Test-pumping of water boreholes. Part 5: The desi

10、gn, selection and performance of pumping equipment for production boreholes. Part 6: The installation and commissioning of pumping equipment for production boreholes. Part 7: The rehabilitation of water boreholes. Part 8: The management of water boreholes. Part 9: The decommissioning of water boreho

11、les. Annex A forms an integral part of this part of SANS 10299. Annex B is for information only. SANS 10299-6:2009 Edition 1.2 1 Contents Page Foreword 1 Scope 3 2 Normative references 3 3 Definitions . 4 4 General requirements . 4 5 Specific installation requirements 5 Annex A (normative) Design in

12、formation and design certificate . 11 Annex B (informative) Bibliography 13 SANS 10299-6:2009 Edition 1.2 2 This page is intentionally left blank SANS 10299-6:2009 Edition 1.2 3 Development, maintenance and management of groundwater resources Part 6: The installation and commissioning of pumping equ

13、ipment for production boreholes 1 Scope 1.1 This part of SANS 10299 covers the installation and commissioning of pumping equipment intended for production boreholes. 1.2 It does not cover equipment for boreholes intended for exploration, dewatering or monitoring purposes. 1.3 It also does not cover

14、the installation or commissioning of any surface delivery piping, distribution systems or storage facilities. NOTE For the installation and commissioning of major distribution systems, it is recommended that designers consult the appropriate part of SANS 1200. 2 Normative references The following re

15、ferenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Information on currently valid national and international standar

16、ds can be obtained from SABS Standards Division. Amdt 2 DIN VDE 0278-623, Power cable accessories with rated voltages U up to 30 kV (Umup to 36 kV) Part 623: Specification for joints, stop ends and outdoor terminations for distribution cables of rated voltage 0,6/1 kV; German version HD 623 S1:1996.

17、 Amdt 1; amdt 2 EN 50393, Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2)kV. Amdt 2 SANS 1507-1, Electric cables with extruded solid dielectric insulation for fixed installations (300/500 V to 1 900/3 300 V) Part 1: General. Amdt 1 SANS 101

18、42-1, The wiring of premises Part 1: Low-voltage installations. Amdt 1 SANS 10299-0, Development, maintenance and management of groundwater resources Part 0: Glossary of terms. Amdt 1 SANS 10299-6:2009 Edition 1.2 4 SANS 10299-4, Development, maintenance and management of groundwater resources Part

19、4: Test-pumping of water boreholes. SANS 10299-5, Development, maintenance and management of groundwater resources Part 5: The design, selection and performance of pumping equipment for production boreholes. SANS 60934/IEC 60934, Circuit-breakers for equipment (CBE). SANS 60947-2/IEC 60947-2, Low-vo

20、ltage switchgear and controlgear Part 2: Circuit-breakers. SANS 62305-3/IEC 62305-3, Protection against lightning Part 3: Physical damage to structures and life hazard. SANS 767-1 (SABS 767-1), Earth leakage protection units Part 1: Fixed earth leakage protection circuit-breakers. SANS 61024-1/IEC 6

21、1024-1 (SABS IEC 61024-1), Protection of structures against lightning Part 1: General principles. Amdt 2 3 Definitions For the purposes of this part of SANS 10299, the definitions given in SANS 10299-0 apply. Amdt 1 4 General requirements 4.1 Design, selection and performance The design, selection a

22、nd performance of the equipment shall be in accordance with the requirements given in SANS 10299-5. 4.2 General installation requirements 4.2.1 General To ensure effective installation and commissioning of the pumping equipment, the specific details of the borehole parameters (see SANS 10299-4) and

23、of the pumping equipment (see SANS 10299-5), together with the design certificate (see annex A), shall be evaluated by the installer during installation. 4.2.2 Details of borehole The test-pumping details of the borehole, determined in accordance with SANS 10299-4, shall be given on the appropriate

24、test certificate described in SANS 10299-4 and shall be made available to the installer by the owner before installation commences. 4.2.3 Details of pumping plant design The information given on the design certificate (see annex A) shall be made available by the owner to the installer in order for t

25、he installation to be carried out efficiently. SANS 10299-6:2009 Edition 1.2 5 4.2.4 Inspection and confirmation Before the installer starts on any installation, he shall a) verify the water level and the depth of the borehole, b) ensure that the borehole is free of any restrictions to its full dept

26、h, c) inspect all equipment on site, to ensure that it complies with the details on the design certificate and with the information given on the various delivery notes, d) ensure that equipment is stored or protected against damage in an acceptable manner, e) ensure that he is in possession of all t

27、he relevant and applicable details and information regarding the borehole pumping equipment and systems design (see SANS 10299-5), and f) in the case of an electric power supply, verify that the supply complies with requested and design criteria in respect of voltage and power. 4.2.5 Water quality a

28、nd protection The installer shall determine (from the owner) a) whether the water quality is to be confirmed before installation commences and, if so required, appropriate water samples shall be collected and tested by an approved test station, and b) whether the surface around the borehole is to be

29、 protected against, or developed for, pollution control in any specific manner. If so required, the appropriate and agreed method of protection shall be applied. NOTE The cost for such evaluation is for the account of the owner. 5 Specific installation requirements The installer shall carry out the

30、installation in an acceptable manner, as follows: 5.1 Installation of mechanical components 5.1.1 Ensure that the materials delivery note, the systems design certificate (see annex A) and the borehole test report (see SANS 10299-4) are available. 5.1.2 From the information on the materials delivery

31、note, the systems design certificate and the borehole test report, verify a) that all the required equipment has been delivered and is on site, b) that the equipment complies with the details indicated, c) that, in the case of plastics rising mains, the type and class of the pipes are correct. Also

32、verify that the surface of the pipework is free of cut marks that might have been caused by the pipes having been dragged along the ground, d) that the equipment is in an acceptable condition and is undamaged, and SANS 10299-6:2009 Edition 1.2 6 e) the condition of the borehole. This might be necess

33、ary if a long time has elapsed since the borehole was drilled or if the borehole is found in an unsealed condition. In such cases it might be necessary to rehabilitate the borehole before any installation commences (see SANS 10299-7). 5.1.3 Make a note of all failures and non-compliances and report

34、these to the owner, in writing. 5.1.4 Ensure that all the failures and non-compliances noted in 5.1.3 have been rectified and that damaged and incorrect material has been replaced before installation commences. 5.1.5 Ensure that the correct installation equipment and tools are available and that the

35、y are in an acceptable condition and state of repair. Take particular care to ensure that the quality and rating of lifting equipment are suitable for the purpose. NOTE Poor and faulty lifting equipment could endanger the lives of installers or cause the loss of equipment refer to the relevant natio

36、nal legislation (see foreword). Amdt 2 5.1.6 Take particular care with the making of joints in any type of rising main. Ensure that the joint is watertight and suitably torqued to guarantee a rigid, durable and permanent connection. Ensure that any sealing compounds, when used, are effectively appli

37、ed and are non-toxic. 5.1.7 Where so specified by the pump supplier or systems designer, as relevant, furnish the rising main with column stabilizers of acceptable quantity and design and installed at the levels indicated by the pump manufacturer. 5.1.8 Ensure that the rising main is rigidly, safely

38、 and efficiently secured at the top of the borehole by means of a pump head, base plate or other delivery connection, which shall be part of the original design. NOTE Rising mains shall be capable of supporting their total filled mass together with the mass of all components of the pumping equipment

39、 without additional means of support such as cables. 5.1.9 Place the inlet of the pump at a depth of at least 3 m above the bottom of the borehole or the higher of the following: a) any slotted casings or screens; and b) the point of inflow. If, in the case of submersible pumps, the depth setting do

40、es not allow upflow of water past the motor, install a flow inducer tube or other acceptable flow inducer around the pump. 5.1.10 If, owing to circumstances, the pump has to be placed at a depth of less than 3 m from the bottom of the borehole, this fact, the actual depth of installation and the rea

41、son for the difference shall be given on the design certificate (see annex A). 5.1.11 When the pump is accompanied by a specific test report (see 7.2 of SANS 10299-5), check the test report and verify the particulars of the pump (and motor) in terms of the report before installation commences. 5.1.1

42、2 In the case of a submersible pump without a non-return valve as an integral part of the pump, furnish the rising main with a non-return valve installed just above the pump in order to prevent any reverse rotation of the pump and motor when the power is switched off. SANS 10299-6:2009 Edition 1.2 7

43、 5.1.13 During the installation of submersible pumps, take care not to damage the drop cable. The cable shall always be free and shall be tied to the rising main at regular intervals (not exceeding 6 m) with acceptable cable ties or bonding material, which will ensure that, if the pump is removed fo

44、r inspection or repair, the cable does not become jammed or damaged. The pump shall be lowered and removed by means of the rising main. No load shall be placed on the drop cable and when the pump has reached its design depth and has been fixed in position, the drop cable shall be allowed an extra fr

45、ee length of at least 1 m. This will ensure that any lowering of the pump owing to the settling of the rising main does not cause stressing of the drop cable. 5.2 Installation of electrical components 5.2.1 Delivery note Ensure that the materials delivery note and the systems design certificate (wit

46、h all electrical details specified) have been made available. 5.2.2 Information From the information on the materials delivery note and the systems design certificate, verify that a) all the required equipment has been delivered, b) the rating and quality comply with the details indicated on the des

47、ign certificate, and c) the equipment has not been damaged. 5.2.3 Cable joints Use submerged cable joints of the encapsulated epoxy type that comply with EN 50393. Amdt 1; amdt 2 5.2.4 Electric motors 5.2.4.1 Motor isolation All surface-mounted electric motors shall be capable of being isolated from

48、 a point within sight of and within 3 m of the motor and the equipment driven by the motor. 5.2.4.2 Protection of electric motors Each electric motor shall be protected by a circuit-breaker that is rated for the full load current of the motor and that is fitted with a magnetic and thermal overload p

49、rotection unit that, after tripping, requires only manual resetting. Circuit-breakers shall comply with SANS 60934 and SANS 60947-2. 5.2.4.3 Overload protection devices Ensure that all overload protection devices are adjusted to trip within 10 s of the development of an electric fault. 5.2.4.4 Three-phase starters Ensure that each three-phase starter is furnished with a nameplate identical with that of the motor. SANS 10299-6:2009 Edition 1.2 8 5.2.4.5 Surge arrestors Ensure that each 220/240 V single-phase system is protected by two surge arrestors, one on t