BS 5724-2.7(1987) : 1987

National foreword
Committees responsible
Section One - General
1. Scope and object
1.1 Scope
1.2 Object
1.3 Particular Standards
1.4 Environmental conditions
2. Terminology and definitions
2.12 Miscellaneous
2.12.101 Specified range of compliance
3. General requirements
3.101 Conventional meaning of electrical quantities
3.102 Radiation quantities
4. General requirements for tests
4.1 Type tests and routine tests
4.7 Supply and test voltages, type of current, nature
       of supply, frequency
4.10 Moisture preconditioning treatment
5. Classification
6. Identification, marking and documents
6.1 Marking on the outside of EQUIPMENT and EQUIPMENT
       parts
6.2 Marking on the inside of EQUIPMENT or EQUIPMENT
       parts
6.7 Indicator lights and push-buttons
6.8 ACCOMPANYING DOCUMENTS
7. Power input
Section Two - Safety requirements
8. Basic safety categories
9. Removable protective means
10. Special environmental conditions
11. Special measures with respect to safety
12. SINGLE FAULT CONDITION
Section Three - Protection against electric shock hazards
13. General
14. Requirements related to classification
15. Limitation of voltage and/or current
16. Enclosures and PROTECTIVE COVERS
17. Insulation and PROTECTIVE IMPEDANCES
18. Earthing and potential equalization
19. Continuous LEAKAGE CURRENTS and PATIENT AUXILIARY
     CURRENTS
19.3 Allowable values
20. Dielectric strength
20.3 Values of test voltages
20.4 Tests
Section Four - Protection against mechanical hazards
21. Mechanical strength
22. Moving parts
23. Surfaces, corners and edges
24. Stability and transportability
25. Expelled parts
26. Vibration and noise
27. Pneumatic and hydraulic power
28. Suspended masses
Section Five - Protection against hazards from unwanted
or excessive radiation
29. X-radiation
29.1 X-radiation generated by diagnostic X-RAY
       GENERATORS containing HIGH-VOLTAGE GENERATORS
30. Alpha, beta, gamma, neutron radiation and other
     particle radiation
31. Microwave radiation
32. Light radiation (including visual radiation and
     lasers)
33. Infra-red radiation
34. Ultra-violet radiation
35. Acoustical energy (including ultra-sonics)
36. Electromagnetic compatibility
Section Six - Protection against hazards of explosions
in medically used rooms
37. General
38. Classification, marking and ACCOMPANYING DOCUMENTS
     of ANAESTHETIC-PROOF EQUIPMENT
39. Common requirements for "AP" and "APG" EQUIPMENT
40. Requirements and tests for ANAESTHETIC-PROOF
     EQUIPMENT, EQUIPMENT parts of components (AP)
41. Requirements and tests for ANAESTHETIC-PROOF
     CATEGORY G EQUIPMENT, EQUIPMENT parts or components
Section Seven - Protection against excessive temperatures,
fire and other hazards, such as human errors
42. Excessive temperatures
43. Fire prevention
44. Overflow, spillage, leakage, humidity, ingress of
     liquids, cleaning, sterilization and disinfection
45. Pressure vessels and parts subject to pressure
46. Human errors
47. Electrostatic charges
48. Materials in APPLIED PARTS in contact with the
     body of the PATIENT
49. Interruption of the power supply
Section Eight - Accuracy of operating data and protection
against incorrect output
50. Accuracy of operating data
50.1 Indication of electric and radiation output
50.2 Information on components and sub-assemblies
       forming the X-RAY GENERATOR
50.101 to 50.103 REQUIREMENTS ON OPERATIONAL DATA
50.101 Reproducibility, linearity and constancy of
       radiation output
50.102 Agreement between the indicated and measured
       values of LOADING FACTORS
50.103 Accuracy in AUTOMATIC CONTROL SYSTEMS
50.104 to 50.107 GENERAL REQUIREMENTS ON COMPLIANCE TESTS
50.104 Test conditions
50.105 General on LOADING FACTORS for tests
50.106 Methods of measuring LOADING FACTORS
50.107 Conditions for measuring AIR KERMA
50.108 to 50.110 PRESELECTED LOADING FACTORS FOR TESTS
50.108 Combinations of LOADING FACTORS for the
       determination of COEFFICIENT OF VARIATION
50.109 Combinations of LOADING FACTORS for the
       determination of linearity and constancy
50.110 Combination of LOADING FACTORS for the
       determination of PER CENT AVERAGE ERROR
50.111 to 50.114 DETERMINATION OF REPRODUCIBILITY AND
                 CONSTANCY IN AUTOMATIC CONTROL SYSTEMS
50.111 General requirements for tests in AUTOMATIC
       CONTROL SYSTEMS
50.112 Method of determining constancy
50.113 AUTOMATIC CONTROL SYSTEMS for INTERMITTENT MODE
       with varying IRRADIATION TIME
50.114 AUTOMATIC CONTROL SYSTEMS FOR INTERMITTENT MODE
       with pre-set IRRADIATION TIME
51. Protection against incorrect output
Section Nine - Fault conditions causing overheating and/
or mechanical damage; environmental tests
52. Fault conditions causing overheating and/or
     mechanical damage
53. Environmental tests
Section Ten - Constructional requirements
54. General
55. Enclosures and covers
56. Components and general assembly
56.8 Indicators
56.11 Switches
57. MAINS PARTS, components and layout
57.1 Separation from SUPPLY MAINS
57.9 Mains supply transformers and MEDICAL ISOLATING
       TRANSFORMERS
57.10 CREEPAGE DISTANCES and AIR CLEARANCES
58. PROTECTIVE EARTH TERMINALS
59. Construction and layout
59.3 Excessive current and voltage protection
59.4 Oil containers
Figure 101 TOTAL FILTRATION for the measurement of
             AIR KERMA
Figure 102 Measuring arrangement for the AIR KERMA in
             AUTOMATIC CONTROL SYSTEMS with TRANSMISSION
             CHAMBER
Figure 103 Measuring arrangement for the AIR KEEMA in
             AUTOMATIC COTNROL SYSTEMS with the IMAGE
             RECEPTION AREA in front of the detector
Table 101 Reference values for the APPARENT RESISTANCE
             OF SUPPLY MAINS
Table 102 Duration of dielectric strength test
Appendix AA - Values of the series R'10, ISO Standard 497
Appendix BB - Tables of combinations of LOADING FACTORS
              for tests
Appendix CC - Example for the determination of the
              combination of LOADING FACTORS according
              to Sub-clause 50.109 for tests for
              linearity and constancy
Alphabetical index

Covers voltages 10 - 400 kV. Includes generators used in dentistry.