NES 362 Type and Production Testing of Mechanical Equipment Category 3

Ministry of Defence Defence Standard 02-362 (NES 362)

Issue 1 Publication Date 01 April 2000

Incorporating NES 362 Category 3

Issue 3 Publication Date May 1988

Type And Production Testing OfMechanical Equipment

DSTANDStan is now the publishing authority for all Maritime Standards (formerly NESs). Any reference to any other publishing authority throughout this standard should be ignored.Any queries regarding this or any other Defence Standard should be referred to the DStan Helpdesk as detailed at the back of this document.

AMENDMENT RECORD

Amd No Date Text Affected Signature and Date

REVISION NOTE

This standard is raised to Issue 1 to update its content.

HISTORICAL RECORD

This standard supersedes the following:

Naval Engineering Standard (NES) 362 Issue 3 dated May 1988.

Ministry of Defence

Naval Engineering Standard

NES 362 Issue 3 (Reformatted) May 1988

TYPE AND PRODUCTION TESTING OF MECHANICAL EQUIPMENT

This NES Supersedes

NES 362 ISSUE 2

Record of Amendments

AMDT INSERTED BY DATE

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iNAVAL ENGINEERING STANDARD 362

ISSUE 3 (REFORMATTED)

TYPE AND PRODUCTION TESTING OF MECHANICAL EQUIPMENT

The issue and use of this Standard

is authorized for use in MOD contracts

by MOD(PE) Sea Systems and

the Naval Support Command

ECROWN COPYRIGHT

Published by:

Director of Naval ArchitectureProcurement Executive, Ministry of DefenceFoxhill, Bath BA1 5AB

NES 362Issue 3 (Reformatted)

iii

SCOPE

1. This NES applies to the testing of mechanical equipment prior to installation.


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v

FOREWORD

Sponsorship

1. ThisNaval Engineering Standard (NES) is sponsored by theProcurement Executive, Ministryof Defence, Deputy Controller Warship Equipment (DCWE), Section ME 241.

2. It is to be applied as required by any Procurement Executive, Ministry of Defence contract forthe testing of nominated equipment before installation and is applicable to Ship Systems andEquipment.

3. If it is found to be technically unsuitable for any particular requirement the Sponsor is to beinformed in writing of the circumstances.

4. Any user of this NES either within MOD or in outside industry may propose an amendmentto it. Proposals for amendments which are:

a. not directly applicable to a particular contract are to be made to the Sponsor of the NES

b. directly applicable to a particular contract are to be dealt with using existing proceduresor as specified in the contract.

5. No alteration is to be made to this NES except by the issue of a formal amendment.

6. Unless otherwise stated reference in this NES to approval, approved, authorized or similarterms, means by the Procurement Executive, Ministry of Defence.

7. Any significant amendments that may be made to this NES at a later date will be indicatedby a vertical sideline. Deletions will be indicated by 000 appearing at the end of the lineinterval.

8. This NES has been reissued primarily to include changes to departmental nomenclatureconsequent upon the reorganization of the Controllerate, particularly with regard toeliminating references to DG Ships, DGW(N), etc.

Conditions of Release

General

9. This Naval Engineering Standard (NES) has been prepared for the use of the Crown and ofits contractors in the execution of contracts for the Crown. The Crown hereby excludes allliability (other than liability for death or personal injury) whatsoever and howsoever arising(including but without limitation, negligence on the part of the Crown, its servants or agents)for any loss or damage however caused where the NES is used for any other purpose.

10. This document is Crown Copyright and the information herein may be subject to Crown orthird party rights. It is not to be released, reproduced or published without written permissionof the MOD.

11. The Crown reserves the right to amend or modify the contents of this NES without consultingor informing any holder.

MOD Tender or Contract Process

12. ThisNES is the property of the Crown and unless otherwise authorized in writing by theMODmust be returned on completion of the contract, or submission of the tender, in connectionwith which it is issued.


vi

13. When this NES is used in connection with aMOD tender or contract, the user is to ensure thathe is in possession of the appropriate version of each document, including related documents,relevant to each particular tender or contract. Enquiries in this connection may be made ofthe local MOD(PE) Quality Assurance Representative or the Authority named in the tenderor contract.

14. When NES are incorporated into MOD contracts, users are responsible for their correctapplication and for complying with contracts and any other statutory requirements.Compliance with an NES does not of itself confer immunity from legal obligations.

Related Documents

15. In the tender and procurement processes the related documents listed in each section andAnnex A can be obtained as follows:

a. British Standards British Standards Institution,389 Chiswick High Road,London W4 4AL

b. Defence Standards Directorate of Standardization and Safety Policy,Stan 1, Kentigern House, 65 Brown Street,Glasgow G2 8EX

c. Naval Engineering Standards CSE3a, CSE Llangennech, Llanelli,Dyfed SA14 8YP

d. Other documents Tender or Contract Sponsor to advise.

Note: Tender or Contract Sponsor can advise in cases of difficulty.

16. All applications to Ministry Establishments for related documents are to quote the relevantMOD Invitation to Tender or Contract Number and date, together with the sponsoringDirectorate and the Tender or Contract Sponsor.

17. Prime Contractors are responsible for supplying their subcontractors with relevantdocumentation, including specifications, standards and drawings.

Health and Safety

Warning

18. ThisNESmay call for the use of processes, substances and/or procedures thatmay be injuriousto health if adequate precautions are not taken. It refers only to technical suitability and inno way absolves either the supplier or the user from statutory obligations relating to healthand safety at any stage of manufacture or use. Where attention is drawn to hazards, thosequoted may not necessarily be exhaustive.


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CONTENTSPage No

TITLE PAGE i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SCOPE iii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FOREWORD v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sponsorship v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Conditions of Release v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

General v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MOD Tender or Contract Process v. . . . . . . . . . . . . . . . . . . . . . . . . .

Related Documents vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Health and Safety vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warning vi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CONTENTS vii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 1. GENERAL REQUIREMENTS 1.1. . . . . . . . . . . . . . . . .1.1 Site of Tests 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 Test Facilities 1.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 2. TYPE TESTS 2.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.1 Instructions for Type Tests 2.1. . . . . . . . . . . . . . . . . . . . .2.2 Proposals for Type Test Programme 2.2. . . . . . . . . . . . .2.3 Details of Type Tests and Examinations 2.3. . . . . . . . . .2.4 Results of Type Tests 2.6. . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION 3. PRODUCTION TESTS 3.1. . . . . . . . . . . . . . . . . . . . . . .3.1 Instructions for Production Tests 3.1. . . . . . . . . . . . . . .3.2 Details of Production Tests and Examinations 3.1. . . .3.3 Results of Production Tests (Presentation) 3.1. . . . . . . .

SECTION 4. ANCILLARY DRIVES FOR AUXILIARYEQUIPMENT 4.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ANNEX A. RELATED DOCUMENTS A.1. . . . . . . . . . . . . . . . . . . .

ANNEX B. DEFINITIONS B.1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ANNEX C. PROCUREMENT CHECK LIST C.1. . . . . . . . . . . . . . .

ALPHABETICAL INDEX


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1.1

1. GENERAL REQUIREMENTS

a. Detailed requirements for Type and Production testing are given in Sections 2.and 3. respectively.

1.1 Site of Tests

a. Each equipment is to be tested at the works of the equipment manufacturer orelsewhere as approved.

1.2 Test Facilities

a. Machinery supports and holding down arrangements are to simulate as closelyas possible those for onboard installation, unless otherwise approved.

b. Lubrication of equipment during tests is to be similar to the installed onboardarrangements.

c. The test rig is to simulate the associated system so that all functions are subjectto operational conditions unless otherwise approved.

d. Ancillary equipment, eg starter and cut-out switches, is to be the same as thatused in service when available. Where not available slave equipment may beused.

e. Services to be provided by the contractor or test establishment are to includeelectricity, water, drainage and air supplies.

f. Consumable materials can be obtained from Naval Stores andmay include fuel,oil and refrigerant.

g. When fuel has been supplied from other than MOD sources, a sample is to besent to the Superintendent, Naval Petroleum Chemistry and TechnologyDivision, Royal Aircraft Establishment, Fairmile, Cobham, Surrey KT11 1B5for determination of the calorific value.

h. Instrumentation is to be fitted to record each parameter including quantity offlow, temperatures and pressures, and these are to be measured at each pointwhere there is significant variation. Additionally the speed (and torque whereappropriate) are to be measured and recorded from any output shaft.

i. The instrumentation is to be of sufficient accuracy to enable significantvariations to be noted. This is to include a high degree of sensitivity and a rapidresponse to fluctuations. A sensitivity of 1% of the maximum scale valuethroughout the anticipated range is the minimum acceptable recording level.

j. All instruments are to be calibrated prior to the type test and selectedinstruments calibrated after the test. Instruments used for Production Testingare to be calibrated periodically in accordance with AQAP6.

k. Safety precautions are to be in accordance with current requirements.

Note: In general with test facilities, it is also advisable that an equipment istested in conjunction with the specific item(s) with which it will beassociated on the ship whenever the performance of the associated unitsis likely to affect the primary equipment. For example, experience hasshown that it is essential that prototype tests on auxiliary boilers arecarried out using the distilling plant appropriate to the ship fit.


1.2


2.1

2. TYPE TESTS

2.1 Instructions for Type Tests

a. Type Tests are carried out on equipment:

(1) as part of a Development Contract

(2) which already has a Configuration Definition but requires testing tovalidate its performance in a ships environment prior to installation or forinclusion on a preferred equipment list.

b. Noise and Vibration tests are covered in DGS 10008, DGS 10009 and BR 3028with relevant levels for submarines given in DPT Specifications 222, 225 and226.

c. The aim of the Type Test is to:

(1) demonstrate that the equipment is suitable for its intended service andthat it is able to perform its specified functions.

(2) establish the limiting performance characteristics of the equipment.

(3) establish significant performance figures for checking production tests onlater equipment.

d. The Type Test programme is to be completed on one equipment, with theexception of Noise and Vibration tests which are covered in DGS 10008, DGS10009, BR 3028 and for submarines DPT Specifications 222, 225 and 226.

e. MOD(PE) will issue a list of the tests which are to be included in the type test.The list can include those tests given in Details of Type Tests andExaminationsbelow. Testing part of an equipment which has been type tested previously isnotrequired, provided that the limiting performance characteristics of the part arenot exceeded.

f. The equipment maker is to prepare proposals in conjunction with associatedmachinery contractors for the Type Test Programmes below. The ProcurementSpecification is to state the dates by which:

(1) The type test programme proposals are required.

(2) The tests are to be commenced.

(3) The tests are to be completed.

(4) The equipment is to be delivered.

g. The completion date is to allow time, before the equipment delivery date, forexamination of the test results and for possible modification and consequentre-testing which MOD(PE) might require.

h. The contractor is to:

(1) provide MOD(PE) with a list showing:

(a) Name of the Manufacturer of each equipment.

(b) Date of despatch of each list of tests to the equipment manufacturer.

(c) Date nominated for receipt of type test programme proposals.


2.2

(d) Date nominated for completion of tests.

(e) Date nominated for delivery of equipment.

(2) ensure that the tests are carried out in accordance with the type testprogramme.

(3) inform MOD(PE) of progress of the type test.

(4) certify that the tests have been completed.

2.2 Proposals for Type Test Programme

a. The Type Test programme proposals are to include the following information:

(1) Name of equipment to be type tested.

(2) Dates of commencement and completion of the type test.

(3) Despatch date of equipment.

(4) Place of test.

(5) Name and telephone number of person responsible for test.

(6) Itemized list of tests and duration of each.

(7) Specified duties.

(8) Estimates of performance.

(9) Details of holding down arrangements.

(10) Details of each itemized test including measurements to be taken andrecorded.

(11) A sketch of the test rig showing the points at which measurements are tobe taken.

(12) Position of rig in controlled environment tests.

(13) Details of measuring equipment and standard of accuracy.

(14) Methods of ensuring that fluids used conform to specification, togetherwith details of oils and greases which will be used.

b. In formulating proposals, manufacturers are to combine as many testrequirements as practicable to minimize the total number of separate tests.

c. The equipment manufacturer is to forward his completed programme proposalsin duplicate to MOD(PE). Particular attention is to be drawn to any proposalto deviate from the requirements of this NES.

d. The MOD(PE) will ensure that the proposals are suitable and fully meetspecified requirements. MOD(PE) will inform the equipment maker of anyamendments to the test programme and instruct him to proceed with testing.


2.3

2.3 Details of Type Tests and Examinations

a. The following may be included by MOD(PE) in the list of tests comprising thetype test. For further details of each, see subsequent clauses.

(1) Physical data.

(2) Operation of turning gear.

(3) Safety tests.

(4) Control equipment and governor operational tests.

(5) Overspeed tests.

(6) Performance characteristic tests.

(7) Cooling tests.

(8) Noise, vibration (self-induced and environmental) and shock tests.

(9) Manoeuvring tests.

(10) Air pressure tests.

(11) Submerged tests.

(12) Special ambient tests.

(13) Inclined tests.

(14) Endurance tests.

(15) Hydraulic pressure tests.

(16) Examination for wear.

(17) Assessment of work content of scheduled maintenance operations.

b. Physical data:

(1) Assembled weight of equipment dry.

(2) Assembled weight of equipment with fluids at normal working levels.

(3) Weights of individual items of equipment.

(4) Weight of spare gear including separate weights of individual items ofequipment and sub-assemblies. Each component weighed is to beprecisely identified by drawing number and part number or by NATOStock Number (NSN) if known. Attention is to be drawn to any additionsto or omissions from the components weighed.

(5) Determination of centre of gravity, radius of gyration etc when (1)(4) areknown. Drawings and records are to be adjusted accordingly.

(6) Minimum space required around the equipment for maintenance, repairand removal activities.


2.4

c. Before equipment is type tested a record is to be made by direct measurementof the dimensions of wearing parts and clearances, unless these dimensions areavailable from themanufacturing records of the equipment. See Examinationsfor Wear, Clause 2.3n.

d. All protective devices are to be tested to establish satisfactory operation. Teststo establish actuation speeds, pressures and temperatures are to be repeated notless than 5 times and each result recorded. Where appropriate, rapid variationsof speed or pressure are to be imposed to establish the time response of thesystem.

(1) Relief valve: test to establish the pressures at which the relief valve lifts,is fully open and reseats, also establish the flow when fully open andconfirm that the valve is tight at design working pressure before liftingand after reseating, and establish accumulation pressure.

(2) Overspeed emergency trip of rotating machinery:

(a) demonstrate that trip operates within the following limits:

Diesel engines Approved trip speed +0, 2%

Other units bothelectrical and mechanical

Approved trip speed +2%, 2%

(b) demonstrate hand operation and resetting of trip.

(3) Lubricating oil failure emergency trip: demonstrate actuation of the tripat the pre-set pressure and record pressure.

(4) High temperature emergency trip: demonstrate actuation of the trip atthe pre-set temperature and record temperature.

Note: Turbo-generators and main turbines as fitted in submarines have avacuum trip arrangement.

e. Control equipment and governor operational tests: each control device is to betested to establish satisfactory operation over the full range of control. It is tobe demonstrated that the control device can cope with the most severe single orcyclic signal variation that is specified.

f. Overspeed tests:

(1) Diesel and Petrol Engines

On completion of the performance tests, the overspeed trip is to berendered inoperative and the engine run for a period of 15 minutes at aspeed which is either 20% in excess of its nominal full speed or is 5% ofnominal speed greater than the overspeed trip setting, the greater of thesetwo being used. If these requirements are not permissible the actualoverspeed percentage is to be agreed with the engine manufacturerdepending on application. The engine is to be run on no-load and the speedat which this test is run is to be recorded. The overspeed trip is to be resetand retested after this overspeed test is completed.

Note: It can be detrimental to run a diesel in an overspeed condition for aprolonged period. DEF STAN 0755 or the relevant NES provide guidesto acceptable vibration limits.


2.5

(2) Gas Turbines

For each gas turbine driven auxiliary the output turbine disconnectedfrom the dynamometer or auxiliary, is to be run at not less than 15% inexcess of the maximum continuous speed or 5% above the approvedoverspeed emergency trip speed, whichever is the greater, for not less than10 minutes continuously. Where engines have a separate gas generatorline the gas generator is to be run at not less than 10% in excess of the gasgenerator speed corresponding with the maximum specified duty for notless than 10 minutes continuously.

Notes:

1. It may be neither practical nor permissible to run the gas turbine drivenauxiliary at these speeds and the actual permitted percentage overspeedto be used for this test is to be agreed with the turbine or auxiliarymanufacturer.

2. Turbo feed-pumps, turbo generators and main turbines, as fitted insubmarines, have emergency overspeed trip arrangements.

g. Performance characteristic tests: each equipment is to be tested to establish itsconsumption and output over the full range of operating conditions, includingthe performance characteristics defined in the instructions issued byMOD(PE).During performance testing, if it is found necessary to adjust control and safetydevices, the tests specified for these are to be repeated under appropriatelyrevised conditions.

h. Noise vibration and shock tests: to conform to NES 811, NES 20202028, DGS591, DGS 10008, DGS 10009 and BR 3021 and 3028.

i. Air pressure tests: the airbell enclosure of an equipment which is required to betested when submerged is to be subjected to an internal air pressure prior tosubmergence. The air pressure is to be equivalent to the depth of submergenceand it is to be demonstrated by means of a sensitive gauge or manometer thatno leakage will occur during a minimum period of one hour. Suitable closureplates are to be manufactured and used as required.

j. Submerged tests: when an equipment is to be capable of operation undersubmerged conditions, tests are to demonstrate its capability to meet therequirements. See also NES 1004.

k. Ambient tests: when an equipment is to operate under ambient conditions, testsare to demonstrate its capability to meet the requirements. See also NES 1004.

l. Inclined tests: tests are to demonstrate the capability of the equipment to start,stop and operate when inclined over the full range of output. Tests are normallyto be conducted at the inclination (or inclinations) in that direction whichimposes the most severe operating conditions. The length of test will be statedin the procurement specification relevant to the equipment. See also NES 1004.


2.6

m. Endurance tests: the equipment is to be run for a period, including all other testrunning, of not less than 100 hours or more than 1000 hours, but the MODmaychoose to extend their period if considered necessary. The running time will bedetermined having regard to experience of similar equipment, operationalrequirements of the equipment and test facilities available. The total runningtime is to be completed without mechanical defect or undue wear. During thistest a record is to be made of consumption of lubricating oil and fuel oil ifappropriate. The balance of time required to complete the endurance trial, aftercompletion of earlier type testing, is to comprise a series of operation cycles,each one to simulate that likely to be met in service and to include whereapplicable:

(1) Starting.

(2) Stopping.

(3) Idling or minimum power for a defined time.

(4) Full Power.

(5) Rapid increases of power.

(6) Rapid reductions of power.

(7) Reversals of direction of rotation.

(8) Astern power.

(9) Operation at fractions of power ahead.

(10) Operation at fractions of power astern.

n. Examination forwear: on completion of type test the equipment is to be strippedand examined. All critical dimensions are to be recorded and divergence fromthe original noted. Any wear observed is to be described and recorded andphotographic records of unusual wear or defects are to be provided. MOD(PE)will advise when any particular examinations are required. Every equipmentembodying a rotor with fitted blades is to be opened up for examination of theblading after completion of the overspeed test. After refurbishing theequipment is to be subjected to production tests.

o. Assessment of Work Content of Scheduled Maintenance Operations: facilitiesmay be required for MOD(PE) representatives to witness, during or after typetests, some or all of the scheduled maintenance operations to assess their workcontent. Obstructions to simulate space limitations around the machine in theship are to be provided.

2.4 Results of Type Tests

a. The equipment manufacturer is to prepare four copies of the type test resultsin a form agreed by MOD(PE). The report is to include the followinginformation:

(1) Date of report.

(2) Date of tests.

(3) Description of equipment including unique identification number of theequipment and drive motor.


2.7

(4) Comparison of estimated and actual weights.

(5) A statement of specified duties and requirements of the equipment.

(6) A sketch and brief description of the test rig actually used if different fromClause 2.2.a.(10) and (11). Description of each test procedure and itsduration. The date and results of calibration tests of all instruments andthe degree of accuracy of measurements recorded.

(7) Tabular statement of test results and the provision of curves wheregraphical presentation can assist in the interpretation.

(8) Tabular statement of critical dimensions and clearances before and aftertype testing together with a description of the condition of the equipmenton completion of tests.

(9) A statement that the equipment has been found to comply withrequirements. Where the equipment does not fully comply, a statementthat it has complied apart from the exceptions described.

(10) An indication of any deficiencies in operation arising out of the typetesting programme and suggested modifications which would improvedesign and performance, whether or not such deficiencies are within thescope of the specification or test requirements. These deficiencies andsuggestions are to be noted in the report.

(11) The modification state of the equipment during the type test.

(12) Certification by themaker that the test has been conducted in accordancewith the type test requirements.

(13) Type test results are to include tolerances for acceptable standards forlater production tests.

b. Draft copies of the reports are to be sent to MOD who will either issueinstructions for necessary modifications or for further testing, or will indicateacceptance of the equipment. Completed test reports are then to be indexed,bound and forwarded to MOD.


2.8


3.1

3. PRODUCTION TESTS

3.1 Instructions for Production Tests

a. Each equipment completed subsequent to the type tested equipment, includingany equipment supplied as spare gear, is to be production tested. Items ofsub-assemblies, eg circulating water pumps and control equipment, are to betested prior to fitting to the equipment.

b. The aim of the Production Tests is to confirm that the performance of eachequipment conforms to results established by the Type Tests.

c. MOD(PE) or MOD(PE) contractor is to be kept informed of the progress of thetests.

d. MOD(PE) will issue a list of tests which are to be included in the production testfor each equipment. This list is to be forwarded to the equipment manufacturerat the time of order.

e. For the benefit of firms not experienced in production testing, a series of typicalproduction test programmes and of completed production test reports are heldby MOD(PE) and will be made available.

f. The equipment manufacturer is to prepare proposals for the programme andconduct of the production test and submit them to MOD(PE). They are toconform with Clause 2.2.

3.2 Details of Production Tests and Examinations

a. The following tests may be included in the Production Test as applicable:

(1) Operation of turning gear.

(2) Safety tests, see also below.

(3) Control and Governor tests.

(4) Overspeed tests.

(5) Performance tests.

(6) Noise and vibration tests.

(7) Air pressure tests.

b. Where an equipment contains no moving parts, the requirements for theproduction test will be met by normal pressure testing and visual, sonic or X-rayexamination as may be considered appropriate.

c. Safety tests are to be conducted as required for the type test excepting that thetime response of the system need not be established and relief valve flow neednot be measured.

d. Each equipment is to be tested to establish sufficient points, includingmaximum duty points on its characteristic curves to demonstrate that itsconsumption and performance correspond with the type tested equipment.


3.2

e. Examination on completion of tests:

(1) After completion of satisfactory production tests, the machinery unit isnot to be opened up or otherwise disturbed in any way which willinvalidate any tests or checks previously undertaken. A limited openingup is permitted for drying out, packaging or guarantee purposes, but therequirements of the preceding sentence are paramount.

(2) Every equipment embodying a rotor with fitted blades is to be opened upfor examination of the blading after completion of the overspeed test.

3.3 Results of Production Tests (Presentation)

a. Results of tests in tabular and graphical form are to be provided to MOD andare to give the date of the report and the date of the tests.


4.1

4. ANCILLARY DRIVES FOR AUXILIARY EQUIPMENT

a. Ancillary drives for auxiliary equipment will, if fitted, be driven from take-offpoints on the prime equipment, to be loaded to not less than 60% of the full loadcondition of the auxiliary equipment during both type and production testing.


4.2


A.1 ANNEX A.

ANNEX A.

RELATED DOCUMENTS

A.1 Reference is made to:

Referred to inClause

DEF STAN0755

Environmental Testing of ServiceMaterial

2.3f.

AQAP6 NATO Measurement and CalibrationSystem Requirements for Industry

1.2j.

NES 811 Submarine Noise Reduction 2.3h.

NES 1004 Requirement for the Design and Testingof Equipment to meet environmentalconditions

2.3j., 2.3k., 2.3l.

NES 2020 to2028

Specification for Resilient Mounts 2.3h.

BR 3021 Shock Manual, Metric 2.3h.

BR 3028 Vibration Levels for AuxiliaryMachinery

2.1b., 2.1d., 2.3h.

DGS 591 Pt 1(*NES 810)

Noise Reduction Handbook SurfaceShips

2.3h.

DGS 10009(*NES 813)

Self Generated Noise and Vibration ofAuxiliary MachineryProduction andRefit Tests

2.1b., 2.1d., 2.3h.

DGS 10009(*NES 813)

Noise and VibrationType Tests 2.1b., 2.1d., 2.3h.

DPT 22(*NES 832)

SSN0106, SSBN0104 and SS(O & P)Class Submarine Machinery Levels ofVibration

2.1b., 2.1d., 2.3h.

DPT 225(*NES 832)

SSN07 and Class Nuclear SubmarineMachinery Levels of Vibration

2.1b., 2.1d.

DPT 226(*NES 832)

SSN13 and Class Nuclear SubmarineMachinery Levels of Vibration

2.1b., 2.1d.

* In course of preparation. When published will supersede stated document.


A.2ANNEX A.


B.1 ANNEX B.

ANNEX B.

DEFINITIONS

B.1 For the purpose of this NES the following definitions apply:

Component a single part which on its own does not fulfil afunction.

Sub-assembly two or more components fitted together.

Equipment a combination of sub-assemblies or componentsfitted together to perform a specific function withindefined parameters.


B.2ANNEX B.


C.1 ANNEX C.

ANNEX C.

PROCUREMENT CHECK LIST

CHECK LIST

TITLE .....................

REFERENCE .....................

Notes:

1. This Check List is to ensure that certain aspects of this Naval EngineeringStandard are consulted when preparing a statement for a particular application.

2. Clauses where a preference for an option is to be used or where specific data isto be added are included in the Check List.

3. Each item is to be marked either:

= included

NA = not applicable

CHECKNo CHECK

CLAUSENo

orNA

1 If there are specialized test requirements.

2 That the tests to be included in the Type Testare included.

2.1e.

3 That the dates required are stated. 2.1f., 2.2,3.1f.

4 That performance characteristics are defined. 2.3g.

5 That the duration of test is stated in the UnitProcurement Specification.

2.3m.

6 That any examination requirements arestated.

2.3n.,3.2e.

7 That the production tests are listed. 3.2, 3.2d.


C.2ANNEX C.


INDEXINDEX.1

ALPHABETICAL INDEX

AAir pressure, 2.5

Ambient, 2.5

Ancillary drives for auxiliary equipment, 4.1

Ancillary equipment, 1.1

CConsumable materials, 1.1

Contractors services, 1.1

Control equipment, 2.4

EEmergency trips, 2.3

Endurance, 2.5

Equipment, 1.1

Examination after production tests, 3.1

Examinationstype tests, 2.3

FFacilities, 1.1

Fuel samples, 1.1

IInclined, 2.5

Instrumentation, 1.1

LLubrication during tests, 1.1

MMachinery supports, 1.1

Measurements, 2.3

NNoise vibration and shock, 2.5

Non-moving equipment, 3.1


INDEX INDEX.2

OOverspeed, for diesel and petrol engines and gas turbine driven auxiliaries , 2.4

PPerformance characteristics, 2.5

Physical data, 2.3

Pre-installation, 1.1

Production test instructions, 3.1

Programme, 2.2

Protective devices, 2.3

RResults of production testspresentation, 3.2

Results of type testspresentation, 2.6, 2.7

SSafety precautions, 1.1

Safety tests, 3.1

Submerged, 2.5

TTest rig, 1.1

Type test instructions, 2.1

WWear examinations, 2.6

Work content assessment, 2.6

Inside Rear Cover

Crown Copyright 2000

Copying Only as Agreed with DStan

Defence Standards are Published by and Obtainable from:

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Revision of Defence Standards

Defence Standards are revised as necessary by up issue or amendment. It is important thatusers of Defence Standards should ascertain that they are in possession of the latest issue oramendment. Information on all Defence Standards is contained in Def Stan 00-00 Standardsfor Defence Part 3 , Index of Standards for Defence Procurement Section 4 Index of DefenceStandards and Defence Specifications published annually and supplemented regularly byStandards in Defence News (SID News). Any person who, when making use of a DefenceStandard encounters an inaccuracy or ambiguity is requested to notify the Directorate ofStandardization (DStan) without delay in order that the matter may be investigated andappropriate action taken.

CONTENTSTitle PageScopeForewordSponsorshipConditions of ReleaseGeneralMOD Tender or Contract Process

Related DocumentsHealth and SafetyWarning

1. General Requirements1.1 Site of Tests1.2 Test Facilities

2. Type Tests2.1 Instructions for Type Tests2.2 Proposals for Type Test Programme2.3 Details of Type Tests and Examinations2.4 Results of Type Tests

3. Production Tests3.1 Instructions for Production Tests3.2 Details of Production Tests and Examinations3.3 Results of Production Tests (Presentation)

4 Ancillary Drives For Auxillery EquipmentAnnexesAnnex A Related DocumentsAnnex B DefinitionsAnnex C Procurement Checklist

Alphabetical Index