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1、BRITISH STANDARD BS CECC 45004:1977 Specification for Harmonized system of quality assessment for electronic components Blank detail specification Disc seal power tubes Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (
2、c) BSI BS CECC 45004:1977 BSI 10-1999 ISBN 0 580 35656 6 Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 45004:1977 BSI 10-1999i Contents Page Na
3、tional forewordii Forewordiii Text of CECC 450041 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 45004:1977 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction
4、of the Electronic Components Standards Committee. It is identical with CENELEC Electronic Components Committee (CECC)45004 “Blank detail specification: Disc Seal Power tubes”. This standard is a harmonized specification within the CECC system. Terminology and conventions. The text of the CECC specif
5、ication has been accepted as suitable for publication, without deviation, as a British Standard. Certain terminology and conventions are used, however, that are not identical with those used in British Standards. Attention is particularly drawn to the following. The comma has been used throughout as
6、 a decimal marker. In British Standards it is current practice to use a full point (as a full stop on the baseline) as the decimal marker. Cross references The British Standard harmonized with CECC 00100 is BS 9000 “General requirements for electronic components of assessed quality”. For each of the
7、 following references to other International Standards that are given in the text, the equivalent British Standard is indicated below: Scope This standard lists the ratings, characteristics and inspection requirements which shall be included as mandatory requirements in accordance with BS CECC 45000
8、. Detail specification layout In the event of conflict between the requirements of this specification and the provisions of Section 3 of BS 9000-2, the latter shall take precedence. In particular the British Standards Institutions prescribed layout for the heading of the detail specification is give
9、n in this section. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Reference to Internati
10、onal StandardEquivalent British Standard IEC 67BS 448 Dimensions of electronic tubes and valves IEC 134BS 3494 Recommendations on semiconductor devices Part 1: Essential electrical and mechanical ratings and characteristics. CECC 45000BS CECC 45000 Harmonized system of quality assessment for electro
11、nic components: Generic specification for space-charge controlled tubes CECC 00111No BS equivalent Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the CECC title page, pages ii to iv, pages 1 to 5 and a back cover. This standard has been updated (see co
12、pyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: London South Bank
13、University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 45004:1977 ii BSI 10-1999 Contents Page Forewordiii 1General1 2Identification of the harmonized detail specification1 3Identification of the tube1 4Supplementary information1 5Data (not f
14、or inspection purposes)1 6Test schedule and inspection requirements3 7Delayed delivery4 Appendix A Layout for the front page of harmonization detail specification5 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BS
15、I BS CECC 45004:1977 BSI 10-1999iii Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of assessed quality. T
16、he object of the System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under the System are the
17、reby accepted by all member countries without further testing. This document has been formally approved by the CECC, and has been prepared for those member countries taking part in the System who wish to issue national harmonized specifications for DISK SEAL POWER TUBES. It should be read in conjunc
18、tion with document CECC 00100: Basic Rules (1974). At the date of printing of this document, the member countries of the CECC are Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Sweden, Switzerland and the United Kingdom, and copies of it can be obtained from the National
19、 Committees of the CENELEC in these countries. Preface This blank detail specification was prepared by CECC Working Group 14: “SPACE-CHARGE CONTROLLED TUBES”. It is one of a series of blank detail specifications for space-charge controlled tubes, all relating to the generic specification printed as
20、CECC 45000. The text of this specification was circulated to the CECC for voting in document CECC(Secretariat)414 in August 1975 and was formally approved by the CECC for printing as a CECC Specification. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03
21、GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 45004:1977 BSI 10-19991 1 General The basic data detailed in paragraph 2 to 5 shall appear in the harm
22、onized detail specification. Appendix A shows the basic layout of the front page of such a specification. 2 Identification of the harmonized detail specification 2.1 Name of the National Standards Organization under whose authority the detailed specification is drafted. 2.2 The CECC symbol and the C
23、ECC number allotted to the national detail specification. 2.3 The number and issue number of the national generic specification. 2.4 The national number of the detail specification, date of issue and any other information required by the national system. 3 Identification of the tube 3.1 Brief descri
24、ption of the tube, type of cathode, type of heating, method of cooling and tube function. 3.2 Type designation. 3.3 Outline drawing giving principal dimensions. 4 Supplementary information Detail specification shall include supplementary information, such as: 4.1 Marking 4.2 Ordering information 4.3
25、 Related documents referred to in the detail specification 4.4 Requirements for certified test records (where certified test records are considered inappropriate, this shall be clearly indicated by the statement “not applicable”) 4.5 Structural similarity. 5 Data (not for inspection purposes) 5.1 Ge
26、neral and Mechanical data 5.1.1 Dimensioned engineering drawing, if possible in accordance with IEC 67. 5.1.2 Mass (Weight). 5.1.3 Mounting position and accessories. 5.1.4 Cooling requirements. 5.1.5 Maximum temperatures of the envelope, the seals and the terminations. 5.1.6 Maximum values for shock
27、 and vibration (if application requires). 5.1.7 Maximum altitude of operation without pressurizing or minimum air pressure (if application requires). 5.2 Electrical data Nominal values 5.2.1 Capacitances. 5.2.2 Amplification factor. 5.2.3 Mutual conductance at prescribed conditions 5.2.4 Output powe
28、r at one or more operating frequencies. 5.2.5 Characteristic curves. 1) Anode current, screen grid current and control grid current as a function of anode voltage for prescribed control grid voltages and screen grid voltages. 2) Constant current diagram (Control grid voltage as a function of anode v
29、oltage for prescribed screen grid voltages and anode currents or screen grid currents or control grid currents. In the case of grounded grid connection, anode and screen grid voltages are given with respect to the control grid instead of cathode). Licensed Copy: London South Bank University, London
30、South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS CECC 45004:1977 2 BSI 10-1999 3) Power dissipation as a function of flow for various coolant inlet conditions (when relevant). 5.2.6 Operating conditions. 1) Below recommended highest operating frequency. 2) At
31、recommended highest operating frequency. 3) Reduction of heater voltage for operation at high frequencies (when relevant). 5.3 Electrical data-Limiting values. 5.3.1 Limiting values. Absolute maximum rating system in accordance with IEC 134. 1) Minimum warn-up time. 2) Maximum heater surge current (
32、when relevant). 3) Limiting value of heater current for nominal value of the heater voltage. 4) Maximum control grid external resistance. 5.3.2 Limiting values at specified frequencies. Absolute maximum rating system in accordance with IEC 134. 1) Operating tolerances of heater voltage. 2) Maximum a
33、node voltage d.c. 3) Maximum screen grid voltage d.c. 4) Maximum negative control grid voltage d.c. 5) Maximum mean control grid current. 6) Maximum mean cathode current. 7) Maximum mean anode current. 8) Maximum mean screen grid current. 9) Maximum anode power dissipation. 10) Maximum screen grid p
34、ower dissipation. 11) Maximum total control grid power dissipation (the actual grid dissipation can be much higher than the apparent value given by positive peak grid voltage x mean grid current). Additional limiting values in the case of pulsed anode operation at specified pulse duration(s) and dut
35、y factor(s) 12) Maximum anode voltage pulse amplitude. 13) Maximum cathode current pulse amplitude. 14) Maximum control grid current pulse amplitude. Additional limiting value in the case of pulsed grid operation at specified pulse duration(s) and duty factor(s) 15) Maximum positive control grid vol
36、tage pulse amplitude. 16) Maximum cathode current pulse amplitude. 17) Maximum screen grid current pulse amplitude. 18) Maximum anode current pulse amplitude. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS
37、CECC 45004:1977 BSI 10-19993 6 Test schedule and inspection requirements The harmonized detail specification shall contain the following groups of tests indicated according to the layout shown below: Group A Inspection (lot-by-lot) Test D ND Condition of test (References are to CECC 45000) I L A Q L
38、 Performance Requirement (References are to CECC 45000) Sub-Group A1 Visual examinationNDSee 4.3100 % Negative control grid current at stated anode voltage, control grid voltage (or anode current) and screen grid voltage. NDSee 4.5.2100 %max Sub-Group A2 Dimension for interchangeabilityNDSee 4.4II1
39、%See 4.4 Anode current at stated anode voltage, control grid voltage (or cathode resistor) and screen grid voltage. NDSee 4.5.4II1 %min/max R.F. power output at stated conditions of operation. NDSee 4.5.15II1 %min Heater voltage or currentNDSee 4.5.1II1 %min/max Pulse emissionNDSee 4.5.7II1 %min Gai
40、n at stated conditions of operation (amplifier tubes only when relevant) NDSee 4.5.12II1 %min Insulation of electrodes (Leakage current) NDSee 4.5.13II1 %max Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS C
41、ECC 45004:1977 4 BSI 10-1999 7 Delayed delivery Each tube held for a period exceeding twelve months following quality conformance inspection shall be re-examined before delivery by the test on negative control grid current. Group C Inspection (periodic) Test D ND Condition of test (References are to
42、 CECC 45000) I L A Q L Performance Requirement (References are to CECC 45000) Sub-Group C1 (one month intervals) CapacitancesNDSee 4.5.14S-46,5 %min/max Intermodulation at stated conditions of operation (linear amplifier tubes only if required) NDSee 4.5.11S-46,5 %min Sub-Group C2 (six months interv
43、als) Detailed dimensions for control purposes NDSee 4.4S-36,5 %See 4.4 Group D Inspection for qualification approval (to be specified in the national detail specification) Test D ND Condition of test (References are to CECC 45000) Sample size and criterion of acceptance (post conditioning tests shal
44、l be specified) Performance Requirement (References are to CECC 45000) Robustness of terminations, (If application requires) DSee 4.6.1 Shock (If application requires) DSee 4.6.2 Vibration (If application requires) DSee 4.6.4 Climatic test (If application requires) D See 4.6.5 EnduranceDSee 4.7 NOTE
45、For the definition of the inspection groups, see CECC 00111. D= destructive test ND= non-destructive test IL= inspection level AQL = acceptable quality level Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS C
46、ECC 45004:1977 BSI 10-19995 Appendix A Layout for the front page of harmonization detail specifications (1) Page . of . pages (2) (3) Electronic components of assessed quality in accordance with . (4) (7) (5) Detail specification for . (6) See the relevant Qualified Products List for availability of
47、 components under this detail specification. NOTEReferences for the above numbers are as follows: (1) see 2.1 (2) see 2.2 (3) see 2.3 (4) see 2.4 (5) see 3.1 (6) see 3.2 (7) see 3.3 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 17:03:03 GMT+00:00 2006, Uncontr
48、olled Copy, (c) BSI BS CECC 45004:1977 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Roy
49、al Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating se