JIS-Z-4606-1995-ENG.pdf
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1、621.386.1:620.179.152.1 UDC JIS JAPANESE INDUSTRIAL STANDARD Industrial X-ray apparatus for radiographic testing Translated Japanese Standards Association 1-24, Akasaka 4, Minato-ku Tokyo 107 Japan 0 JSA, 1997 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under lice
2、nse with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 08:15:32 MDTNo reproduction or networking permitted without license from IHS -,-,- UDC 621.386.1:620.179.152.1 JAPANESE INDUSTRIAL STANDARD J I S Industrial X-ray apparatus for radiographic testing Z 4606-199
3、5 1. Scope tus used for the radiographic testing (hereafter referred to as “X-ray apparatus“). T h i s Japanese Industrial Standard specifies the industrial X-ray appara- Remarks 1. The following standards are cited in this Standard. JIS C 1001 JIS 2 4001 JIS 2 4701 JIS 2 4703 JIS Z 4704 2. The unit
4、s and numerical values given in in this Standard are based on the traditional units, and appended for informative reference. Voltage measurement method with sphere gap Glossary of terms used in nuclear energy General rules for medical X-ray equipment General requirements of mechanical units for medi
5、cal X-ray equipment X-ray tube assemblies for medical use 2. given in JIS Z 4001, Z 4701, 2 4703 and 2 4704, the following definitions apply. Definitions For the purposes of this Standard, in addition to the definitions intermittent duty rating X-ray apparatus be used with reciprocally repeating use
6、 time and rest time. The X-ray apparatus which kan continuous duty rating X-ray apparatus be continuously used for 30 minutes or more. The X-ray apparatus which can rated output mum tube current which can be supplied continuously or intermittently to an X-ray apparatus. The maximum tube voltage and
7、the maximum tube current are expressed by wave height value (kV) and mean value (d), respectively. A combination of the maximum tube voltage and the maxi- 360“ type X-ray apparauts in the whole circumferential directions (360“) to the X-ray tube axis. The X-ray apparatus which can radiate X-rays X-r
8、ay sheild box assembly or an X-ray generator is installed. A box used for sheilding X-ray in which an X-ray tube X-ray radiation field aperture. A film part is blacked by X-rays from the radiation Classification of apparatus The X-ray apparatus is classified as follows. Classification on structure (
9、a) Separate type X-ray apparatus (b) Mono-tank type X-ray apparatus PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 08:15:32 MDTNo reproduction or networking permitte
10、d without license from IHS -,-,- 2 Z 4606-1995 (2) Classification on use conditions (a) (b) Intermittent duty rating X-ray apparatus Continuous duty rating X-ray apparatus 4. Power source and earthing 4.1 Power source In principle, the line voltage of power source is AC 100 V, 200 V or 220 V and its
11、 voltage fluctuation is within f10 %. Line frequency is 50 H z or 60 Hz and its fluctuation range is f1 Hz. 4.2 Earthing The earth terminal of the X-ray apparatus should be surely connected to the earth terminal by the 3rd level earthing work which is met to the ministerial ordinance specifying the
12、technical standard of electrical equipment (No.61 1965, Ministerial Ordinance of the Ministry of International Trade and Industry). 5. Performance characteristics 5.1 Tube voltage the test conversion value should be within f5 % at each test point (voltage), in the case where the test is performed in
13、 accordance with the method of 7.3.1. However, a mono-tank X-ray apparatus is excluded. Each error between the tube voltage displaying value and 5.2 Tube current Each error between the tube current displaying value and the actual measured value should be within f10 % at each test point (current) in
14、the case where the test is performed in accordance with the method of 7.3.2. 5.3 Rated output Any abnormalities (overheating, decay of the output power, etc.) on the rated output power should not be observed in the case where the test is performed in accordance with the method of 7.3.3. 5.4 Line vol
15、tage variation case where the test is performed in accordance with the method of 7.3.3. The rated output power should be obtained, in the 5.5 Timer be within I T 1 0 % at each test time in the case where the test is performed in ac- cordance with the method of 7.3.4. Each error between a set time an
16、d the actual measured time should 5.6 X-ray radiation field The difference between the actual X-ray radiation field and its nominal value specified in the instruction manual should be within f15 % in the case where the test is performed in accordance with the method of 7.3.5. 5.7 Insulation and volt
17、age proof 5.7.1 The insulation resis- tance between a line side circuit and an earthed metal portion of apparatus should be 2 MQ or more in the case where the test is performed in accordance with the method of 7.3.6 (1). Insulation resistance of power source side circuit PROTECTED BY COPYRIGHT Copyr
18、ight Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 08:15:32 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 Z 4606-1995 140 160 180 200 5.7.2 A line side circuit should
19、be able to resist for 1 minute in the case where the test is performed in accordance with the method of 7.3.6 (2). Voltage proof of power source side circuit 5.5 6.5 7.5 9.0 5.7.3 able to resist for 1 minute in the case where the test is performed in accordance with the method of 7.3.6 (3). Voltage
20、proof of high voltage side A high voltage side circuit should be 5.8 The leakage dose rate excluding the using beam at the position of 1 m from the focus of the X-ray apparatus should be within 77.4 p3kg-h I300 mR/h) on the apparatus of rated tube voltage of less than 200 kV and within 129 pC/kg.h (
21、500 mRh on the apparatus of rated tube voltage of 200 kV or more, in the case where the test is performed in accordance with the method of 7.3.7. However, the leakage dose rate at the outmost surface of an X-ray shield box should be within 0.52 pC/kg.h I2 mRh in the case where an X-ray apparatus is
22、used in an X-ray shield box. Leakage dose rate of X-ray apparatus 5.9 connect a high voltage generator to an X-ray tube assembly of separate type X-ray apparatus should be able to resist the voltage of 1.2 times the rated voltage for 1 minute. The cable used to connect a controller to an X-ray tube
23、assembly or an X-ray generator should have enough length so as to operate it from a place set up the operation distance specified in Table 1 apart. However, this requirement is not applied in the case where they are installed in an X-ray shield box. High voltage cable and low voltage cable The high
24、voltage cable used to Table 1. The rated tube voltage vs. the operation distance 120 I 5.0 220 I 10.0 240 I 11.5 Remarks: 1. This table is applied in the case where the rated tube current is 5 mA. In case where the rated tube current is a. mA, the opera- tion distance can be obtained by multiplying
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