JB/T 4279.16-2008 PDF English
US$80.00 · In stock · Download in 9 secondsJB/T 4279.16-2008: Verification procedure for test equipment of enamelled winding wire. Part16: Static friction coefficient tester Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid
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| JB/T 4279.16-2008 | English | 80 |
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Verification procedure for test equipment of enamelled winding wire. Part16: Static friction coefficient tester
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JB/T 4279.16-2008: Verification procedure for test equipment of enamelled winding wire. Part16: Static friction coefficient tester
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/JBT4279.16-2008
JB
MACHINERY INDUSTRY STANDARD
ICS 29.060
K 12
Record number. 23114-2008
Verification procedure for test equipment of enamelled
winding wire - Part 16.Static friction coefficient tester
Issued on: FEBRUARY 01, 2008
Implemented on: JULY 01, 2008
Issued by. National Development and Reform Commission
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Verification items and technical requirements... 5
4 Verification instruments... 6
5 Verification method... 6
5.1 General inspection... 6
5.2 Measurement of size of the base plate (slide plate)... 6
5.3 Measurement of size of the moving plate (slide block)... 6
5.4 Measurement of test speed... 7
5.5 Check of the tester angle or static friction coefficient error... 7
5.6 Measurement of mass... 8
6 Processing of verification results... 8
Verification procedure for test equipment of enamelled
winding wire - Part 16.Static friction coefficient tester
1 Scope
This Part of JB/T 4279 specifies the verification items and technical requirements,
verification instruments, verification methods and processing of verification results for
the static friction coefficient tester of enameled round wire.
This Part is applicable to the verification of static friction coefficient tester of enameled
round wire.
2 Normative references
The clauses in the following documents become the clauses of this Part through
reference in this Part of JB/T 4279.For dated references, all subsequent amendments
(not including errata content) or revisions do not apply to this Part. However, parties to
agreements that are based on this Part are encouraged to study whether the latest
versions of these documents can be used. For undated references, the latest edition
applies to this Part.
JB/T 4279.1-2008, Verification procedure for test equipment of enamelled winding
wire - Part 1.General
3 Verification items and technical requirements
3.1 The base plate (slide plate) of the tester for placing samples shall be flat, not less
than 300 mm in length and not less than 80 mm in width, and shall be able to fix the
enameled wire sample.
3.2 The moving plate (slide block) of the tester for placing samples shall be flat, not
less than 80 mm in length and not less than 80 mm in width, and shall be able to fix the
enameled wire sample.
3.3 If the tester displays the static friction coefficient by angle, its angular velocity shall
be 1 (°)/s ± 0.5 (°)/s; if it displays the static friction coefficient by changing the static
force, the speed of changing the force shall be 0 N/s ~ 0.1 N/s.
3.4 During the test, when the sample moving plate (slide block) of the tester slides on
the base plate (slide plate), the base plate (slide plate) of the tester shall stop moving
and display the angle or static friction coefficient. The angle error at an inclination angle
of 10° shall be less than 20’; the error of static friction coefficient at an inclination angle
of 10° shall be less than 0.005.
3.5 The mass of the moving plate (slide block) of the tester on which the sample is
placed shall consist of the basic moving plate (slide block) and the load moving plate
(slide block). The mass of the basic moving plate (slide block) is 50 g ± 5 g; the mass
of the load moving plate (slide block) can be composed of multiple load moving plates
(slide blocks) (500 g ± 50 g).
4 Verification instruments
4.1 Vernier caliper, 125 mm, graduation value 0.02 mm.
4.2 Steel measuring tape, 2 m, graduation value 1 mm.
4.3 Vernier protractor, graduation value 5'.
4.4 Mount pan balance, graduation 0.1 g; Class III.
4.5 Stopwatch, graduation value 0.1 s.
4.6 Q-1 enameled wire tester (referred to as Q-1 tester).
5 Verification method
5.1 General inspection
5.1.1 Visually inspected, the base plate (slide plate) and moving plate (slide block) of
the tester shall be flat, without any obstruction to the normal sliding of the moving plate
(slide block), and shall not deform for a long time.
5.1.2 After the moving plate (slide block) of the tester moves, the digital display of the
tester shall be able to immediately record the value before the moving plate (slide block)
moves.
5.2 Measurement of size of the base plate (slide plate)
Use a vernier caliper to measure the size of the base plate (slide plate), which shall meet
the requirements of 3.1.
5.3 Measurement of size of the moving plate (slide block)
Use a vernier caliper to measure the size of the moving plate (slide block), which shall
meet the requirements of 3.2.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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