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1、JIS Ca4606 73 4933608 0536049 829 D JIS UDC 621.31 6.545.027.5:621.316.312 JAPANESE INDUSTRIAL STANDARD 6.6 kV Disconnectors for indoor use JIS C 4 6 0 6 - 1 9 9 3 Translated and Published by Japanese Standards Association Printed in Japan 8s Copyright Japanese Standards Association Provided by IHS
2、under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C*4bOb 93 m 4933608 0516050 540 In the event of any doubt arising, the original Standard in Japanese is to be
3、 final authority. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C+YbOb 93 m q933b08 05Lb051 Y87 W
4、UDC 621.316.545.027.5: 621.316.312 JAPANESE INDUSTRIAL STANDARD J I S 6.6 kV Disconnectors for indoor use C 4606-1993 1. Scope This Japanese Industrial Standard specifies the manually operated 6.6 kV disconnectors for indoor use to be used in the circuits of nominal voltage 6.6 kV and of frequency 5
5、0 H z or 60 Hz at high voltage receiving stations which are used for the consumers to receive electric power from the electric utilities (hereafter referred to as “disconnectors“). Remarks 1. The following standards are cited in this Standard: JIS B 741 1 Etched-stem liquid-in-glass thermometers, to
6、tal immersion type JIS B 7528 Mercury filled thermometers JIS C 1601 Indicating thermoelectric thermometers JIS C 1603 Indicating resistance thermometers JIS 2 8721 Colour specification - Specification according to their three attributes 2. The International Standard corresponding to this Standard i
7、s given below: IEC 129 (1984) Alternating current disconnectors (isolators) and earthing switches 2. Definitions definitions apply: For the purpose of this Standard, the following principal (3) (4) (5) (7) disconnector closing and isolating an electrified circuit, but in principle, not for making an
8、d breaking the load current. rated voltage disconnector under the specified conditions. rated withstand voltage to the disconnector for the specified time without any abnormality. rated frequency comply with the specified requirements. rated current through the disconnector under the rated voltage a
9、nd the rated frequency without exceeding the specified limit of temperature rise and the highest permissible temperature. rated short-time withstand current The limit of current which can be passed through the disconnector for the specified time under the specified circuit conditions without any abn
10、ormality. pole - The pole means the portion in each line of a circuit where opening and closing are performed. It is called single-pole, two-pole, three-pole or multi-pole according to number of lines which can be opened and closed simultaneously. A switching equipment to be used solely for opening,
11、 The limit of service voltage capable of being applied to the The limit of the voltage capable of being applied The frequency at which the disconnector is designed to The limit of current which can be passed continuously Copyright Japanese Standards Association Provided by IHS under license with JSA
12、Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS C+4bOb 93 4933b08 051ib052 313 W 2 C 4606-1993 hooked bar A tool which opens and closes the blades of disconnector without operating
13、mechanism manually by hooking the operating metal fitting of the blade. It is composed of an insulating bar and hook attached to the end of bar. copper contact Such a contact that both contacting surfaces of conductor are composed of copper or the equivalent. silver contact are composed of silver li
14、ning or silver plating whose functions in service are Such a contact that both contacting surfaces of conductor guaranteed. conductive part can flow, it includes all the metallic structural members. main conductive part circuit current is carried. contacting part contact pieces and springs, constitu
15、ting electrical contact. blade (disconnecting blade) The movable conductive part for main circuit or grounding in a disconnector. A movable contact piece is attached to it. contact piece The conductor part of a switching equipment which forms a current carrying part by coming in contact with the mat
16、ing part at the closed position and performs opening and closing of the circuit by means of the relative motion to the mating part. dependent manual operation without use of other power source. remote operation remote position, through a link mechanism. hook bar operation apparatus by means of a hoo
17、k bar. The part of a disconnector through which the current The conductive part through which the main The part which is assembled from such components as Operation made only by human force The dependent manual operation carried out from a The dependent manual operation of a switching 3. Service con
18、ditions 3.1 Normal service condition conditions which satisfies the following, and disconnectors unless particularly specified, shall be used under these conditions. The normal service condition means the service (1) When the disconnector is used in a place where the ambient temperature does not fal
19、l outside the range of 40C at the highest and -5C at the lowest. does not exceed 35C. When the disconnector is used in a place of 1000 m or under in altitude. When the disconnector is used in a place where none of the items of 3.2 applicable. Also it is used in a place where the average value during
20、 a day of 24 h (2) (3) 3.2 Abnormal service condition The abnormal service condition means the service conditions which come under any one of the conditions given below, and in the case of these service conditions, it shall be specified particularly. Copyright Japanese Standards Association Provided
21、 by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS C*YbOb 93 m 4933608 051b053 25T Rated withstand voltage terminals one to others, and between main circu
22、it terminals and ground same phase main circuit Rated voltage 3 C 4606-1993 Insulation level (1) (2) (3) (4) (5) When the disconnector is used in other place than defined in 3.1 in ambient temperature and altitude. When the disconnector is used in a place where it is considerably subjected to sea br
23、eeze. When the disconnector is used in a place where it is in humid condition at all times. When the disconnector is used in a place where excessive vapour or excessive oily vapour exists. When the disconnector is used in a place where explosive, inflammable and other harmful gases exist, and in a p
24、lace where it is liable to be affected by the gases given above. When the disconnector is used in a place where excessive dusts present. a (6) Lightning impulse 60 45 7.2 (7) (8) When the disconnector is used in a place where it is subjected to abnormal vibration or impact. When the disconnector is
25、used under particular conditions other than mentioned above. Power Lightning Power frequency impulse frequency (r.m.s. value) (r.m.c. value) No. 22 70 35 6 A 16 52 25 6 B 4. Ratings 4 . 1 Rated voltage The rated voltage of disconnectors shall be 7.2 kV. 4.2 Rated withstand voltage The rated withstan
26、d voltages and corresponding insulation levels of disconnectors shall be as given in Table 1. 4.4 Rated current Table 2. The rated currents of disconnectors shall be as given in Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Win
27、g, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C*4bOb 93 a 4933b08 0516054 196 W Type of inspection Type inspection Acceptance inspection 4 C 4606-1993 Resistance value between same phase main circuit terminals The value
28、within the range established by the manufacturer The value shall not exceed 1.2 times the resistance value at type inspection. Table 2. Rated current Unit: A Rated current 4.5 Rated short-time withstand current The rated short-time withstand current of disconnectors shall be as given in Table 3. Tal
29、e 3. Rated short-time withstand current Unit: kA Rated short-time withstand current 8 12.5 5. Performances 5.1 Resistance values between same phase main circuit terminals The resistance values between the same phase main circuit terminals of the disconnector subjected to the test in accordance with
30、7.2 shall be as given in Table 4. Table 4. Resistance values between same phase main circuit terminals 5.2 No-voltage switching performance The no-voltage switching performance of the disconnector subjected to the test in accordance with 7.3, shall be such that no abnormality appears on any part. 5.
31、3 Strength to withstand short-time current The strength to withstand short-time current of the disconnector subjected to the test in accordance with 7.4 shall be such that no remarkable damage takes place, and the specimen is capa- ble of passing the rated current continuously regardless of successi
32、ve switching operation. 5.4 Temperature rise subjected to the test in accordance with 7.5, shall not exceed the appropriate value of Table 5. For that to be used in a place where the ambient temperature exceeds 40C such as an enclosed switchboard, the values of Table 5 subtracted by the ambient temp
33、erature in excess of 40C are considered as the limits of temperature rise. The temperature rise of each part of the disconnector Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDT
34、No reproduction or networking permitted without license from IHS -,-,- J I S Cx4bOb 93 m 4733608 05Lb055 O22 m Limit of temperature rise 5 C 4606-1993 Highest permissi- ble temperature Table 5. Limit of temperature rise Unit: C Joint of conductor by clamping with bolt Main circuit terminal joint Pos
35、ition Tin contact 50 90 Copper or aluminium joint 50 90 Silver joint 75 115 Tin joint 65 105 Copper or aluminium joint 50 90 Silver joint 65 105 Tin joint 65 105 portion 30 Accessible outer surface Contact part I Copper contact I 35 75 I 70 65 I 105 I I Silver contact I 95 55 I Mechanical structure
36、Cemented portion of portion I porcelain insulator (1) 50 I lo I PiLr 1 Portion touched metallic with hand I 110 I 70 Inaccessible outer surface Limit of reference ambient temperature I 40 Note ( The limit of temperature rise and the highest permissible temperature of organic insulting materials such
37、 as epoxy resin insulators are subjected to agreement between the purchaser and supplier. Remarks: The limit of temperature rise and the highest permissible temperature of the joint between aluminum conductors are specified same as those between copper conductors. However, for aluminum joint enough
38、care shall be taken on the corrosion proof, oxidation prevention, etc. of the contact surface. 5.5 Dielectric withstand voltage When the dielectric withstand voltage test is carried out as specified in 7.6, neither ground fault nor flashover shall occur, and no abnormality shall take place on any pa
39、rt of the disconnector. 6. Construction 6.1 Operating system of remote operating system or hook bar operating system. The operating system of disconnectors shall be either Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Ber
40、nie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C*4b0b 93 = 4933608 0536056 Tb Rated current A 6 C 4606-1993 6.2 Coating and plating The portions where occurrence of rust is anticipated a shall be sufficiently treated to prevent
41、 rusting, and the coating shall adhere perfectly and shall not peel off easily. sary thickness. The part to be plated shall be pretreated sufficiently and be plated in neces- Number of holes Nominal size of bolt to be used 6.3 Color of coating hue, lightness and saturation specified in JIS 2 8721, a
42、nd shall generally be 5Y7/1. The color of coating shall be expressed based on the 600 6.4 sions at the connecting part of main circuit terminal of disconnectors shall be as Connecting part of main circuit terminal Number of holes and dimen- 1 or 2 M12 given in Table 6 and Fig. 1. 200 I l o r 2 I M10
43、 or M12 400 I l o r 2 I M10 or M12 Fig. 1. Dimensions of connecting part of main circuit terminal Unit: mm Single-hole Double-hole 7. Test methods 7.1 Construction test investigated on the items specified in 6. and 10. In the construction test, the specimen shall be 7.2 Resistance measuring test In
44、the resistance measuring test, the resistance between the main circuit terminals shall be measured in accordance with the d.c. voltage drop method with a d.c. current not less than 10 A passed. and acceptance inspection. Furthermore, the current value shall be the same in both of the type inspection
45、 a a Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:09:06 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS C*I y = minimum center-to-center s acing between
46、adjacent r ,I O &ases Remarks: If it is considered that this is severe because xi is larger as compared with the actual arrange- ment, the arrangement may be revised subject, to agreement between the purchaser and supplier. (b) For single-phase test In the single-phase test, the return circuit shall
47、 be installed at a height equal to that of the blade of specimen and at a distance of the minimum center-to-center distance between adjacent phases. The positions of supporting point and the connecting wires are subjected to an agreement between the purchaser and supplier, but at least the arrangeme
48、nt of Fig. 3 shall be employed and the sag of connecting wire shall be minimized. 7.5 Temperature rise test a place free from influence of ventilation, on the contact parts, terminals, joints of conductors, and other mechanical constructional parts, at an ordinary tempera- ture. This test is carried out after completion of no-voltage switching test and short-time withstand current test. The temperature rise test shall be carried out, in This test of three-pole disconnector may be carried out on a single phase, if a there is no interfe