CN211741539U - Insulation resistance detection capability verification sample - Google Patents
Insulation resistance detection capability verification sample Download PDFInfo
- Publication number
- CN211741539U CN211741539U CN201921830124.7U CN201921830124U CN211741539U CN 211741539 U CN211741539 U CN 211741539U CN 201921830124 U CN201921830124 U CN 201921830124U CN 211741539 U CN211741539 U CN 211741539U
- Authority
- CN
- China
- Prior art keywords
- insulation resistance
- circuit
- sample
- capability verification
- verification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses an insulation resistance detection capability verification sample, which comprises a shell and an insulation resistance capability verification circuit sealed in the shell, wherein a public connecting terminal and a gear connecting terminal are arranged on the shell, one end of the insulation resistance capability verification circuit is electrically connected with the public connecting terminal, and the other end of the insulation resistance capability verification circuit is electrically connected with the gear connecting terminal; the insulation resistance capability verification circuit is composed of a resistance circuit and two voltage stabilizing diodes with opposite polarities, wherein the two voltage stabilizing diodes are connected with the resistance circuit in series. The utility model discloses the sample can standardize the operation of joining the mechanism that the ability was verified, and the mechanism that the restriction was joined in the ability verification utilizes the resistance of insulation resistance tester to test the sample like the standard method of stipulating in the operation instruction book.
Description
Technical Field
The utility model relates to a technical field is verified to the ability, concretely relates to can prevent to verify sample with universal meter test insulation resistance's insulation resistance testing capability.
Background
Capability verification is an activity that uses inter-laboratory alignments to determine the calibration, detection capability of a laboratory or the detection capability of an inspection facility. Competency verification activities refer to any inter-laboratory alignment and measurement audit used to evaluate laboratory competency. Such as activities performed by a national or regional approval agency or cooperative organization thereof, a government or industry organization, or other provider of a formal capacity verification plan.
The development of capability verification activities has a positive effect on relevant aspects related to detection or calibration, and for laboratories, the requirements for meeting the ISO/IEC 17025 standard, internal quality control and external capability certification are met; for the accreditation institution, is an important technical approach to evaluate the accreditation laboratory testing or calibration capability; for the clients of the laboratory, the method is an important basis for proving that the laboratory has certain detection capability; for government authorities, the method is an effective measure for supervising laboratory capacity and level. Therefore, at present, the ability verification activities are widely concerned both internationally and domestically.
The insulation resistance test project of the electrical and electronic products requires that an insulation resistance tester applies direct current voltage with standard requirements to an energy verification sample, the voltage grades are generally direct current 250V, 500V, 1000V and the like, the application time is one minute, and the resistance value after one minute is read as the insulation resistance value of the tested sample. Traditional ability verification sample can obtain accurate resistance value with universal meter or the direct measurement of resistance meter, and based on this, some mechanisms that participate in ability verification directly report as the selective examination data that ability was verified with the test data of universal meter, do not conform to the original purpose of ability verification activity like this. The utility model discloses aim at standardizing the operation step that insulation resistance detectability was verified, tend to make the mechanism that participates in the ability verification unify and carry out the insulation resistance test according to the standard method stipulated in the operation instruction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mechanism that can tend to participate in ability verification unifies the ability verification sample that carries out insulation resistance test according to the standard method stipulated in the operation instruction book.
The purpose of the utility model is realized through the following technical scheme: an insulation resistance detection capability verification sample comprises a shell and an insulation resistance capability verification circuit sealed in the shell, wherein a public wiring terminal and a gear wiring terminal are arranged on the shell, one end of the insulation resistance capability verification circuit is electrically connected with the public wiring terminal, and the other end of the insulation resistance capability verification circuit is electrically connected with the gear wiring terminal; the insulation resistance capability verification circuit is composed of a resistance circuit and two voltage stabilizing diodes with opposite polarities, wherein the two voltage stabilizing diodes are connected with the resistance circuit in series.
The casing includes more than two insulation resistance ability verification circuit, and these circuits are through the difference gear binding post draws forth, but connects one jointly public binding post, and is whole gear binding post sets up on the same surface of casing, and with public binding post is located different surfaces to wiring dislocation when avoiding the test as far as possible.
When the ability verification activity starts each time, a sample is issued, the mechanisms participating in the ability verification test the resistance of the sample according to the standard method specified in the operation instruction, and the data are uploaded to the verification activity development department. Because the utility model discloses the internal circuit of the sample of issuing is provided with two zener diodes that polarity is opposite, when testing the sample resistance with other equipment such as universal meter, owing to can not reach zener diode's reverse breakdown voltage and can not switch on, lead to surveying not going out the resistance to the restriction is waited to verify the department and can only be according to the standard method of stipulating in the operation instruction book like, utilizes the resistance of insulation resistance tester to test the sample.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model discloses the sample can standardize the operation of the mechanism that participates in the ability verification, and the mechanism that limits to participate in the ability verification utilizes the insulation resistance tester to test the resistance value of the sample according to the standard method stipulated in the operation instruction;
(2) the insulation resistance detection capability verification sample of the utility model has simple structure, low manufacturing cost and convenient transportation;
(3) the utility model discloses every insulation resistance ability verification circuit of insulation resistance detectability verification sample sets up two zener diodes that polarity is opposite, and insulation resistance tester test terminal can not need the polarity of branch, uses simplyr.
Drawings
Fig. 1 is a schematic view of an external structure of an insulation resistance detection capability verification sample according to the present invention;
FIG. 2 is a schematic circuit diagram of an insulation resistance capability verification circuit of the insulation resistance detection capability verification sample of FIG. 1;
reference numerals: 1-common wiring terminal, 2-shell, 3-I gear wiring terminal, 4-II gear wiring terminal, 5-circuit common terminal, 6-voltage stabilizing diode, 7-1-resistor, 7-2-resistor, 8-voltage stabilizing diode, 9-circuit I gear terminal, 10-circuit II gear terminal, 11-voltage stabilizing diode, 12-1-resistor, 12-2-resistor and 13-voltage stabilizing diode.
Detailed Description
The invention will be described in further detail with reference to the following drawings and specific embodiments:
as shown in fig. 1, the insulation resistance detection capability verification sample in this embodiment includes a common connection terminal 1, a housing 2, an I-stage connection terminal 3, and an II-stage connection terminal 4; the upper surface of the shell 2 can be printed with a unit LOGO, and the side surface can be printed with sample names and serial numbers; two gear binding post 2 and 3, a public binding post 1 partial shipment are on two relative terminal surfaces of casing 2, and the terminal adopts bolt type binding post.
In the embodiment, each surface of the shell 2 is made of the same material, so that the problem of uneven sample temperature caused by different heat conduction coefficients among different materials is avoided, and the interference on the verification data is avoided.
An insulation resistance detection capability verification circuit is arranged in the insulation resistance detection capability verification sample and is sealed in a shell of the sample. As shown in FIG. 2, the insulation resistance capability verification circuit comprises a circuit common terminal 5, a voltage stabilizing diode 6, a resistor 7-1, a resistor 7-2, a voltage stabilizing diode 8, a circuit I gear terminal 9, a circuit II gear terminal 10, a voltage stabilizing diode 11, a resistor 12-1, a resistor 12-2 and a voltage stabilizing diode 13.
Two insulation resistance ability verification circuits are shown in fig. 2, the utility model discloses set up two zener diodes that polarity is opposite on every insulation resistance ability verification circuit of sample, can avoid participating in the mechanism that ability is verified and adopt equipment such as universal meter direct readout resistance outside the insulation resistance tester of standard requirement to trend them is operated according to standard method. The two voltage stabilizing diodes can also enable the test terminal of the insulation resistance tester not to have polarity division, and the use is simpler. The utility model discloses the sample still has simple structure, low in manufacturing cost, transports convenient characteristics.
The mechanism for participating in capability verification completes the insulation resistance detection capability verification test by using the sample, and comprises the following specific steps:
1) pretreatment: before the test, according to the standard requirement, the sample is put in a reliable environment with the constant temperature of 20 +/-5 ℃ and the relative humidity of 45-75 percent for pretreatment for a sufficient time to ensure that the sample and the environment reach thermal equilibrium;
2) after the sample reaches a thermal stable state specified by a standard, applying DC500V direct current voltage between the wiring terminals 1 and 3 by using an insulation resistance tester, keeping for 1min, and recording the insulation resistance value; and applying DC voltage of DC500V between the wiring terminals 1 and 4 by using an insulation resistance tester, keeping for 1min, recording the insulation resistance value with the unit of M omega, and keeping two digits after decimal point.
In the test process, a test connection picture, a picture of which the tester is debugged (applied voltage value and test time) and a picture of which the last insulation resistance value is displayed need to be taken and submitted together as an investigation file of the capacity verification activity.
In this example, the breakdown voltage of the zener diode used in the sample was 20V.
Utilize the utility model discloses insulation resistance detection capability verifies that the sample carries out the step that the ability was verified as follows:
1) when the capability verification activity starts each time, an insulation resistance detection capability verification sample is distributed to a department to be verified;
2) and evaluating the insulation resistance detection capability of the department to be verified according to the data sent by the department to be verified.
The utility model discloses homogeneity inspection report of sample is verified to insulation resistance detection ability
According to the setting requirements of the samples, 100 samples are ordered, 12 samples are randomly extracted from the samples for uniformity test respectively, the DC500V test voltage is selected, and the test is repeated for 2 times for each sample.
The sample uniformity test results data are shown in table 1.
TABLE 1
The results of the one-way anova are shown in table 2.
TABLE 2
The calculated F statistic value was less than the F cutoff value, indicating that the insulation resistance value of the sample was uniform at a significance level of 0.05.
The insulation resistance detection capability verification sample in the embodiment is suitable for the safety part 1 of GB 4706.1-2005 household and similar-purpose appliances: general requirements, GB/T12350-2009 safety requirements for low-power motors, GB/T2099.1-2008 plug and socket for domestic and similar applications part 1: general requirements, GB/T17465.1-2009 section 1 of appliance couplers for domestic and similar applications: general requirements, GB/T16915.1-2014 "switch part 1 of stationary electric devices for domestic and similar uses: general requirements, GB/T14536.1-2008, general requirements for part 1 of electric automatic controllers for domestic and similar applications, GB/T15092.1-2010, general requirements for part 1 of appliance switches, GB 7000.1-2015, part 1 of light fittings: general requirements and tests and other standard development ability verification items.
The insulation resistance detection capability in this embodiment verifies sample overall structure is simple to can used repeatedly more than 10 ten thousand times, with low costs, small, conveniently accomodate and transport.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (2)
1. An insulation resistance detection capability verification sample is characterized by comprising a shell and an insulation resistance capability verification circuit sealed in the shell, wherein a public wiring terminal and a gear wiring terminal are arranged on the shell, one end of the insulation resistance capability verification circuit is electrically connected with the public wiring terminal, and the other end of the insulation resistance capability verification circuit is electrically connected with the gear wiring terminal; the insulation resistance capability verification circuit is composed of a resistance circuit and two voltage stabilizing diodes with opposite polarities, wherein the two voltage stabilizing diodes are connected with the resistance circuit in series.
2. The insulation resistance testing capability verification sample according to claim 1, wherein the housing includes two or more insulation resistance testing circuits, which are led out through different tap terminals but are commonly connected to one common terminal, and all the tap terminals are disposed on the same surface of the housing and located on different surfaces from the common terminal, so as to avoid wiring misalignment during testing as much as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830124.7U CN211741539U (en) | 2019-10-29 | 2019-10-29 | Insulation resistance detection capability verification sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830124.7U CN211741539U (en) | 2019-10-29 | 2019-10-29 | Insulation resistance detection capability verification sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211741539U true CN211741539U (en) | 2020-10-23 |
Family
ID=72873093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921830124.7U Active CN211741539U (en) | 2019-10-29 | 2019-10-29 | Insulation resistance detection capability verification sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211741539U (en) |
-
2019
- 2019-10-29 CN CN201921830124.7U patent/CN211741539U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102317802B (en) | Integrated unit for electrical/reliability testing with improved thermal control | |
| ES8607571A1 (en) | Testing apparatus. | |
| CN211741539U (en) | Insulation resistance detection capability verification sample | |
| CN108760090B (en) | Simulated environment temperature testing device | |
| CN110927645B (en) | Insulation resistance detection capability verification method | |
| CN103575425A (en) | Automatic compensation-type thermocouple metrological verification polarity extension connector | |
| CN102087149B (en) | Temperature calibrator with temperature difference measurement function | |
| US8174275B2 (en) | Storage battery inspecting system | |
| CN214750770U (en) | Plug discharge capability verification sample of electronic and electrical product | |
| CN102156230A (en) | Temperature-increment testing capability verifying sample | |
| CN103134438A (en) | Compound measurement jig | |
| CN212513375U (en) | Switch cabinet contact temperature measuring sensor detection platform based on controllable constant temperature platform | |
| CN114460449A (en) | Low-temperature testing device and method for electromagnetic relay | |
| CN202189091U (en) | Standby power consumption testing capability verification sample | |
| CN202025050U (en) | Capability verification sample applying to temperature rise test in electrical testing field | |
| CN103808974B (en) | switch plate device | |
| CN211042539U (en) | Testing device | |
| CN211042540U (en) | Testing device | |
| CN211453800U (en) | Input current test capability verification sample | |
| US2233646A (en) | Interconnectible portable indicating instruments | |
| JPH02206249A (en) | Checking device for home bus cable | |
| Dragomir et al. | Temperature logger for electrical equipment's thermal stress monitoring | |
| CN109579998A (en) | The detection method of photovoltaic connector contact resistance | |
| CN218037275U (en) | Automatic batch detection device for electrical performance of capacitor | |
| CN214538308U (en) | Test site temperature data acquisition channel inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |