KR101520891B1 - Resistive road bank assembly - Google Patents
Resistive road bank assembly Download PDFInfo
- Publication number
- KR101520891B1 KR101520891B1 KR1020140192776A KR20140192776A KR101520891B1 KR 101520891 B1 KR101520891 B1 KR 101520891B1 KR 1020140192776 A KR1020140192776 A KR 1020140192776A KR 20140192776 A KR20140192776 A KR 20140192776A KR 101520891 B1 KR101520891 B1 KR 101520891B1
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- frame
- mounting hole
- load resistor
- base
- mounting
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Abstract
The present invention relates to a load resistor assembly comprising a load resistor and a mounting frame for mounting the same. The mounting frame includes a lower frame 110, a left frame 120, a right frame 130, an upper frame 140 Each of the lower frame 110, the left frame 120, the right frame 130, and the upper frame 140 is composed of a rectangular base portion and a pair of bent portions at a pair of long sides of the base portion And a short side bent portion bent in the same direction as the long side bending portion so as to connect one end of the pair of long side bending portions at one side of the base portion. The lower frame 110 and the left frame 120 , The right frame 130, and the upper frame 140 are all molded in the same shape. According to the present invention, it is possible to reduce manufacturing cost and improve assembling workability .
Description
The present invention relates to a load resistor, and more particularly, to a load resistor which can reduce manufacturing cost, improve assembling workability, and can be manufactured in a large quantity. In case of the same electrostatic power and rated voltage, Load resistor assembly.
In general, the RESISTIVE ROAD BANK is a resistance device used for testing the load of a generator.
These load resistors are used in such a manner that a plurality of resistance coils are fixedly mounted on the mounting frame in accordance with the rated capacity and the rated voltage.
1 is an exploded perspective view of a mounting frame for a load resistor according to the prior art. As shown in FIG. 1, a mounting frame for a load resistor according to the related art is composed of a
The
The
The
The
A
A
A
A
2 is a conceptual diagram of a state in which a load resistor according to the related art is installed.
2, the load resistor according to the related art has a rod shape, and is provided with a
The
However, the conventional load resistor and the mounting frame for installing the load resistor have the following problems.
First, the
Second, the mounting frame for a conventional load resistor has a problem that installation workability is also very poor.
That is, in order to mount the
The
Fourth, since the
Fifth, since the
Sixth, there is a problem that the load resistor employing the conventional donut-
Therefore, in the case of testing a load resistor having a large load resistance for a generator test with a large generating capacity, there is a problem that it is difficult to be indoors because it is too bulky.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a load resistor assembly,
First, since all four frames are formed in the same shape, the workability is good and the production cost of the product can be lowered,
Second, since all four frames are formed in the same shape and four frames of the same shape can be assembled uprightly, it is possible for a single person to be mounted by himself / herself,
Third, by adopting a special material compound of the present invention based on an unsaturated polyester resin as a main material and performing molding molding, it is possible to mass-produce the product while lowering the production cost,
Fourth, by adopting a special material compound of the present invention based on an unsaturated polyester resin as a main material and molding it by molding, it is possible to prevent the spark of the upper and lower frames from occurring,
Fifth, by adopting a special material compound of the present invention based on an unsaturated polyester resin as a main material and molding it, it is possible to improve the mechanical, electrical and thermal properties,
Sixthly, the resistance coils provided in the load resistors are formed so as to be superimposed while rotating the peculiar triangles of the present invention at intervals of 45 degrees, so that the volume can be remarkably reduced under the same rated power and rated voltage,
Seventh, by providing the elastic member and the spacer in the load resistor, the insulation tube and the resistance coil can be closely attached to each other, thereby preventing the flow of the insulation tube and the resistance coil,
Eighth, it is an object of the present invention to provide a load resistor assembly suitable for easily and easily configuring the electrical connection between the upper and lower resistance coils by the configuration of the conductive pin and the conductive plate.
In order to accomplish the above object, the present invention provides a load resistor assembly comprising a resistive load bank for load testing a generator and a mounting frame for mounting the load resistor, the load resistor assembly comprising:
Wherein the mounting frame comprises a lower frame, a left frame, a right frame, and an upper frame, the load resistor being installed over the left frame and the right frame,
Wherein each of the lower frame, the left frame, the right frame and the upper frame includes a rectangular base portion, a pair of long bend portions curved at a pair of long sides of the base portion, And a short-side bent portion bent in the same direction as the long-angle bending portion so as to connect the end of the negative portion,
The left frame is mounted on the lower frame in a state where the short side bend of the lower frame is in contact with the lower side of the base portion of the left frame and the short side bend of the right frame is abutted on the right end of the base portion of the lower frame, The left frame is mounted on the lower frame, the left end of the upper frame is mounted on the left frame while the left end of the base frame is supported on the left frame by abutting against the uneven bend of the left frame, And the right frame is mounted on the right side of the upper frame in a state where the short side bend of the right frame contacts the other end of the base portion of the right frame.
The load resistor assembly according to the present invention is characterized in that a first lower mounting hole is formed in the step portion of the lower frame and a second lower mounting hole is formed in the base portion of the lower frame opposite to the step portion,
Wherein a first left mounting hole is formed in the single curved portion of the left frame and a second left mounting hole is formed in a base portion of the left frame opposite to the single curved portion of the left frame,
And a second right mounting hole is formed in the base portion on the opposite side of the single elongated valley portion of the right frame,
A second upper mounting hole is formed in a base portion of the upper frame opposite to the end portion of the curved portion of the upper frame,
The second left mounting hole and the first lower mounting hole are fastened by a first fastening screw so that the left frame is mounted on the lower frame while the short side bend of the lower frame is in contact with the lower side of the base of the left frame,
The second lower mounting hole and the first right mounting hole are fastened by a second fastening screw so that the left frame is mounted on the lower frame while the short side bend of the right frame is in contact with the right end of the right end of the base of the lower frame, ,
The second upper mounting hole and the first left mounting hole are fastened by a third fastening screw in a state in which the left end of the base part of the upper frame is in contact with the stepped curved part of the left frame and is supported on the left frame, Is mounted on the left frame,
The first upper mounting hole and the second right mounting hole are fastened by a fourth fastening screw so that the upper frame and the left frame are mounted while the short side bend of the upper frame is in contact with the other end of the base portion of the right frame .
The load resistor assembly according to the present invention is characterized in that the lower frame, the left frame, the right frame and the upper frame have the same shape and are molded and molded.
The load resistor assembly according to the present invention is characterized in that the lower frame, the left frame, the right frame, and the upper frame are formed of unsaturated polyester resin, glass fiber, a filler and a curing agent, and is characterized in that it is produced by molding a compound composed of an inter mold re-dase agent and a toner.
The load resistor assembly according to the present invention is a compound for molding the lower frame, the left frame, the right frame, and the upper frame, which comprises 20 to 25% by weight of a unsaturated polyester resin, 18 to 18% by weight, 46 to 56% by weight of a filler, 4 to 15% by weight of a curing agent, 2 to 3% by weight of an intermolding agent and 2 to 3% by weight of a toner. .
The load resistor assembly according to the present invention is characterized in that the lower frame and the upper frame are repeatedly formed in the left frame and the right frame so as to be pierced in a longitudinal direction and spaced apart from the lower frame, And a second installation hole is formed in the left frame and the right frame in the same number as the upper fastening holes spaced apart from the upper fastening holes. By tightening the screw with the support rod fastening nut, A support rod extending through the installation hole and extending from the left frame to the right frame; an insulation tube extruded to the support rod; and a resistance coil wound around the insulation tube, one end of each of which is connected to both ends of the resistance coil And a pair of upper and lower fastening holes And a conductive pin fastening nut for fastening the conductive pin to the conductive pin of the conductive plate by screwing the conductive pin to the conductive pin of the conductive plate, .
The load resistor assembly according to the present invention is characterized in that the load resistor assembly is extrapolated to the support rod, one end is mounted on the insulation tube and the other end is mounted on a spacer to prevent the insulation tube from flowing, Elastic member; And a spacer for extruding the elastic member from the support rod so as to be positioned between the other end of the elastic member and the right and left frames to elastically support the elastic member.
The load resistor assembly according to the present invention is characterized in that the resistance coil is repeatedly formed in the form of a triangular coil layer rotated by 45 degrees in one direction.
A load resistor assembly according to the present invention includes a first coil piece having a straight shape, a second coil piece having a linear shape bent at an acute angle with the first coil piece, and a third coil piece having a straight shape bent from the second coil piece toward the first coil piece. A fourth coil piece bent from the third coil piece toward the second coil piece, a fifth coil piece bent from the fourth coil piece toward the third coil piece, and a fourth coil piece bent from the fifth coil piece toward the fourth coil piece. The sixth coil piece being bent in the direction of the fifth coil piece from the sixth coil piece and the eighth coil piece being bent toward the sixth coil piece in the seventh coil piece, .
The load resistor assembly having the above-described structure according to the present invention has the following effects.
First, since all four frames are formed in the same shape, the processability is good and the production cost of the product can be lowered.
Second, since all four frames are formed in the same shape and four frames of the same shape can be assembled uprightly, it is possible for a worker of a single person to mount it alone, thereby improving the assembly workability.
Third, the molding material can be molded by adopting a special material compound of the present invention based on an unsaturated polyester resin as a main material, so that mass production can be achieved while lowering the production cost.
Fourth, by adopting a special material compound of the present invention based on an unsaturated polyester resin as a main material and molding it by molding, it is possible to prevent the spark from occurring in the upper and lower frames.
Fifth, by adopting a special material compound of the present invention having an unsaturated polyester resin as a main material and molding it, it is possible to improve the mechanical, electrical and thermal properties.
Sixth, the resistance coil provided in the load resistor is formed so as to be superposedly formed by rotating the peculiar triangular shape of the present invention at intervals of 45 degrees, so that the effect of remarkably reducing the volume under the same rated power and rated voltage have.
Seventh, by providing the elastic member and the spacer in the load resistor, the insulation tube and the resistance coil can be closely attached to each other, thereby preventing the flow of the insulation tube and the resistance coil and improving the product reliability.
Eighth, there is an effect that the electrical connection between the upper and lower resistance coils can be easily and simply formed by the configuration of the conductive pin and the conductive plate.
1 is an exploded perspective view of a mounting frame for a load resistor according to the prior art.
2 is a conceptual diagram of a state in which a load resistor according to the related art is installed.
3 is a cross-sectional view of a mounting frame in a load resistor assembly according to an embodiment of the present invention.
4 is an exploded perspective view of a mounting frame in a load resistor assembly according to an embodiment of the present invention.
5 is a partial front view and a partial enlarged view of a load resistor assembly according to an embodiment of the present invention, in which a load resistor is mounted on a mounting frame.
6 is a left side view of a load resistor assembly according to an embodiment of the present invention, in which a load resistor is mounted on a mounting frame.
7 is a partially exploded perspective view of a load resistor assembly according to an embodiment of the present invention, in which a load resistor is mounted on a mounting frame.
8 is a side view of a
FIG. 9 is a front view of a load resistor assembly according to an embodiment of the present invention in which a
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a load resistor assembly according to the present invention will now be described in detail with reference to the accompanying drawings.
As shown in the drawings, the load resistor assembly according to an embodiment of the present invention includes a resistive load bank for load testing a generator and a mounting frame for mounting the load resistor.
The mounting frame may include a
Each of the
At this time, an opening portion having no curved surface or bending portion is formed at the opposite end of each of the
More specifically, the
The
At this time, an opening portion where no bent surface or bent portion is formed is formed at the opposite position of the single-
The
At this time, an opening portion where no bent surface or bent portion is formed is formed at the opposite side of the single-
The
At this time, an opening portion where no bent surface or bent portion is formed is formed at the opposite side of the single deflection curved
In the load resistor assembly according to an embodiment of the present invention, the unidirectional
According to the above-described structure of the mounting frame, it is possible to reduce assembling time and assembling workability, thereby improving assembling workability, and also it is possible for one person's worker to perform assembling work, thereby reducing labor costs.
In the load resistor assembly according to an embodiment of the present invention, a pair of first lower mounting
A second
In the load resistor assembly according to an embodiment of the present invention, the unidirectional curved portion 110b of the lower frame 110 contacts the lower side of the base portion 120a of the left frame 120, The second left mounting hole 122 and the first lower mounting hole 111 are fastened by the first fastening screw P1 so that the left frame 120 is mounted on the lower frame 110, The first lower mounting hole 112 and the first right mounting hole 131 are in contact with the right end of the base 110a of the lower frame 110 in a state where the first lower mounting hole 112 and the first right mounting hole 131 are in contact with each other, The left frame 120 is fastened to the lower frame 110 by the second fastening screw P2 and the left end of the base portion 140a of the upper frame 140 is fastened to the left frame 120 In a state in which it is in contact with the step portion 120b and is supported by the left frame 120, The upper frame 140 and the first left mounting hole 121 are fastened by the third fastening screw P3 so that the left side of the upper frame 140 is mounted on the left frame 120, The first upper mounting hole 141 and the second right mounting hole 132 are connected to the fourth fastening screw P4 in a state in which the deflection curved portion 140b is in contact with the other end of the base portion 130a of the right frame 130, And the upper frame 140 and the left frame 120 are mounted.
According to the above-described structure, the assembling work can be performed by reducing the assembling time and the assembling workability, and the assembling work can be performed by a single worker. Thus, the labor cost can be reduced.
The
Thereby, there is an advantage that the manufacturing cost and the processing cost of the frame can be lowered.
The
The unsaturated polyester resin is a thermosetting resin obtained by the copolymerization of a linear polyester having an unsaturated group and a vinyl unit, and is advantageous in that molding and molding are easy at room temperature and atmospheric pressure.
The glass fiber has an advantage of high tensile strength, little temperature dependency, good dimensional stability, excellent electrical insulation, high heat resistance, nonflammability, and low water absorption. Preferably, a chop having a diameter of 9 to 15 mu m and a length of 10 mm is used.
The filler prevents the glass fiber from leaking out to provide surface smoothness, has less shrinkage during curing, improves dimensional stability, prevents cracking, adjusts viscosity and flow, There is an advantage in that cracks due to heat generation are prevented because the heat generation temperature is low.
As the filler, for example, calcium carbonate and aluminum hydroxide having an average particle diameter of 2 to 10 mu m may be used.
The above-mentioned toner uses a white pigment and a black pigment.
The curing agent for curing the unsaturated polyester induces a high temperature curing reaction by heat. For example, Tert-butylperoctocate (TBPO) may be used as the organic peroxide.
The mold release agent is advantageous in that it can be easily adhered to a mold, melts during molding and moves to the surface of the molded article to form a mold and a polyester film, thereby facilitating demoulding.
Examples of such release agents include zinc stearate (M.P. 133 DEG C), calcium stearate (M.P. 150 DEG C), magnesium stearate (M.P. 130 DEG C), and the like.
In the load resistor assembly according to an embodiment of the present invention, as a compound for molding the
Depending on the embodiment, a low shrinkage agent may be included in the weight ratio of the unsaturated polyester resin, which is used to attenuate the volume shrinkage of the unsaturated polyester resin.
For example, a method of molding a frame using a compound of the above-mentioned components is a method of impregnating a glass fiber into a liquid unsaturated polyester resin, mixing a mold release agent, a pigment, a filler, and a curing agent and putting them into a mold When heat is applied, the frame is formed by hardening.
A compound is formed in a weight ratio of 20% by weight of an unsaturated polyester resin, 2% by weight of a water-reducing resin, 17% by weight of glass fiber, 50% by weight of a filler, 7% by weight of a curing agent, 2% by weight of a release agent and 2% After the
Mechanical
Property
(Flexural Strength)
(Tensile Strength)
(Compressive Strength)
(Impact Strength)
(Barcol hardness)
Thermal / Physical
Property
(Specific Gravity)
(Absorption Rate)
(Heat Distortion)
(self-test)
(UL Flammability)
Electrical
Property
(Dielectric Strength)
(Insulation Resistance)
(Dielectric Constant)
(dissipation factor)
(Arc Resistance)
(Anti-Tracking)
As can be seen from Table 1, the
In the load resistor assembly according to an embodiment of the present invention, the
In the load resistor assembly according to an embodiment of the present invention, by screwing the support
A lower through
According to this, there is an advantage that the means for conducting between the resistance coils 160 installed on the upper and lower sides can be easily, simply, and accurately realized.
In the load resistor assembly according to one embodiment of the present invention, one end is extruded to the
According to this, there is an advantage that the
In the load resistor assembly according to an embodiment of the present invention, the
Specifically, in the load resistor assembly according to an embodiment of the present invention, the
According to this, even when the same rated power and rated voltage are applied, there is an advantage that the size of the entire resistor can be reduced compared with the conventional one.
It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is self-evident to those who have.
Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.
110:
110b: a stepped curved portion of the lower frame
110c, and 110d:
111: first lower mounting hole 112: second lower mounting hole
120: left
120b: a short curvature portion of the left frame
120c and 120d:
121: first left mounting hole 122: second left mounting hole
123a:
124:
130:
130b: Short curved portion of the right frame
130c, and 130d:
131: first right mounting hole 132: second right mounting hole
134: first mounting
140:
140b: a stepped curved portion of the upper frame
140c, and 140d:
141: first upper mounting hole 142: second upper mounting hole
P1: first fastening screw P2: second fastening screw
P3: Third fastening screw P4: Fourth fastening screw
151: support rod 152: insulating tube
160:
160b:
160d:
160f:
160h: eighth coil piece 171: conductive pin
172:
172b: upper through
174a, 174b: a support rod fastening nut 181: an elastic member
182: Spacer
Claims (4)
The mounting frame includes a lower frame 110, a left frame 120, a right frame 130, and an upper frame 140,
The load resistor is installed across the left frame 120 and the right frame 130,
Each of the lower frame 110, the left frame 120, the right frame 130, and the upper frame 140 includes rectangular base portions 110a, 120a, 130a, 140a and base portions 110a, 120a, 130a 120d, 130c, 130d, 140c, and 140d bent at a pair of long sides of the base portions 110a, 120a, 130a, and 140a and a pair of long bending portions 110c, 110d, 120c, 120d, 130c, 130d, 140c (140d, 140d, 140d, 140d, 140d, 140d, 140d, 140d, 140d, 140d, 140d, 140d) so as to connect one end of the pair of the long- 120b, 130b, and 140b, which are bent in the same direction as the first,
The left frame 120 is mounted on the lower frame 110 in a state in which the single deflection curved portion 110b of the lower frame 110 is in contact with the lower side of the base portion 120a of the left frame 120, ,
The left curved portion 130b of the right frame 130 abuts against the right end of the base portion 110a of the lower frame 110 so that the left frame 120 is mounted on the lower frame 110,
When the left end of the base part 140a of the upper frame 140 is in contact with the uneven bending part 120b of the left frame 120 and is supported by the left frame 120, Mounted on the left frame 120,
The right frame 130 is mounted on the right side of the upper frame 140 in a state in which the transverse curved portion 140b of the upper frame 140 is in contact with the other end of the base portion 130a of the right frame 130,
The lower frame 110, the left frame 120, the right frame 130, and the upper frame 140 are manufactured by molding the same shape,
The lower frame 110, the left frame 120, the right frame 130, and the upper frame 140 may be formed of unsaturated polyester resin, glass fiber, filler, curing agent and a mold comprising a mold composed of an intermold reldase agent and a toner is molded by molding.
A first lower mounting hole 111 is formed in the first curved portion 110b of the lower frame 110 and a second lower mounting hole 111 is formed in the base 110a on the opposite side of the first curved portion 110b of the lower frame 110 2 lower mounting holes 112 are formed,
A first left mounting hole 121 is formed in the first curved portion 120b of the left frame 120 and a second left mounting hole 121 is formed in the base portion 120a on the opposite side of the first curved portion 120b of the left frame 120 Two left mounting holes 122 are formed,
A first right mounting hole 131 is formed in the first curved portion 130b of the right frame 130 and a second right mounting hole 131 is formed in the base portion 130a on the opposite side of the curved portion 130b of the right curved portion 130. [ Two right mounting holes 132 are formed,
A first upper mounting hole 141 is formed in the stepped valley portion 140b of the upper frame 140 and a second upper mounting hole 141b is formed in the base portion 140a on the opposite side of the single valley portion 140b of the upper frame 140. [ Two upper mounting holes 142 are formed,
The first left mounting hole 122 and the first lower mounting hole 120b of the left frame 120 are in contact with the lower portion of the base 120a of the left frame 120, The first frame 111 is fastened by the first fastening screw P1 so that the left frame 120 is mounted on the lower frame 110,
The first lower mounting hole 112 and the first right mounting portion 130b of the right frame 130 are in contact with the right end of the right lower end of the base 110a of the lower frame 110, The hole 131 is fastened by the second fastening screw P2 so that the left frame 120 is mounted on the lower frame 110,
The left upper end of the base part 140a of the upper frame 140 is supported by the left frame 120 while the left end of the base part 140a of the upper frame 140 is in contact with the stepped curved part 120b of the left frame 120, And the first left mounting hole 121 are fastened by a third fastening screw P3 so that the left side of the upper frame 140 is mounted on the left frame 120,
The first upper mounting hole 141 and the second right mounting hole 132 may be formed in a state where the stepped curved portion 140b of the upper frame 140 is in contact with the other end of the base portion 130a of the right frame 130. [ Is fastened by the fourth fastening screw (P4) so that the upper frame (140) and the left frame (120) are mounted.
Priority Applications (1)
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KR1020140192776A KR101520891B1 (en) | 2014-12-29 | 2014-12-29 | Resistive road bank assembly |
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KR1020140192776A KR101520891B1 (en) | 2014-12-29 | 2014-12-29 | Resistive road bank assembly |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200484048Y1 (en) | 2017-03-30 | 2017-07-25 | 백용호 | Resistor of rc filter for electric railway vehicle and resistor assembly thereof |
KR200484047Y1 (en) | 2017-02-20 | 2017-07-25 | 백용호 | Resistance assembly of rc filter for electric railway vehicle |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910015045A (en) * | 1990-01-12 | 1991-08-31 | 원본미기재 | High Resistance Polysilicon Load Resistors |
US5424588A (en) * | 1992-04-07 | 1995-06-13 | Cantor; Thomas L. | Self-contained, portable compact load bank and testing method; compact load bank with improved power handling capability |
KR200388801Y1 (en) * | 2005-04-08 | 2005-07-07 | (주)신성기전 | Assembly with the loading Resistor Box |
KR200452939Y1 (en) * | 2008-12-05 | 2011-04-04 | (주)신성기전 | Loading resistors |
-
2014
- 2014-12-29 KR KR1020140192776A patent/KR101520891B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910015045A (en) * | 1990-01-12 | 1991-08-31 | 원본미기재 | High Resistance Polysilicon Load Resistors |
US5424588A (en) * | 1992-04-07 | 1995-06-13 | Cantor; Thomas L. | Self-contained, portable compact load bank and testing method; compact load bank with improved power handling capability |
KR200388801Y1 (en) * | 2005-04-08 | 2005-07-07 | (주)신성기전 | Assembly with the loading Resistor Box |
KR200452939Y1 (en) * | 2008-12-05 | 2011-04-04 | (주)신성기전 | Loading resistors |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200484047Y1 (en) | 2017-02-20 | 2017-07-25 | 백용호 | Resistance assembly of rc filter for electric railway vehicle |
KR200484048Y1 (en) | 2017-03-30 | 2017-07-25 | 백용호 | Resistor of rc filter for electric railway vehicle and resistor assembly thereof |
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