This standard specifies the verification items and technical requirements, verification instruments, verification methods, verification results and treatment of enameled round wire stripping testers. This standard applies to the verification of enameled round wire stripping testers. JB/T 4279.6-1994 Verification methods for enameled winding wire test equipment Stripping tester JB/T4279.6-1994 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Enameled Winding Wire Test Instrument and Equipment Calibration Method Instrument
Peeling Test
Subject Content and Scope of Application
JB/T4279.6
Replaces JR4279.686
This standard specifies the calibration items and technical requirements, calibration instruments, calibration methods, calibration results and processing of enameled round wire peeling test instruments.
This standard is applicable to the calibration of enameled round wire peeling test instruments. Reference Standard
JB/T4279.1 General Rules for Calibration Methods of Enameled Winding Wire Test Instruments
Calibration Items and Technical Requirements
The distance between the two clamps of the enameled round wire residual test instrument can be adjusted to 500±5mm. The rotation speed of the sample twisting should be 60~100r/min. 3.2
The weight of the hanging rod is 5V. The load weight is 5N, 15N, 20V, 55N. The weight error range is 10%.3.3
The torsion counter counts accurately and reliably.
Instruments for verification
Steel tape measure, 2m.
Stopwatch. Graduation value 0.1%.
Electronic scale or table scale, graduation value 5g:
Verification method
General inspection
The enameled round wire peeling tester should be placed horizontally, and the slider can move smoothly on the guide rail. After clamping the sample and hanging the corresponding load, the fixture has no looseness or slippage. The scraper is sharp. The two blades are parallel. There is no gap. The torsion counter is reliable, especially the counting error. 5.2 Measure the distance between the two fixtures.
5.3 Use a stopwatch to measure and record the number of twists n of the tester within time t (greater than 1min). Calculate the twisting speed V according to the following formula: V-60n/t
Where: --- time s;
-t The number of twists within time.
Take the average of 3 calculated values.
5.4 Measure the weight of the hanging rod and the load.
Approved by the Ministry of Machinery Industry on December 9, 1994www.bzxz.net
Implemented on June 1, 1995
Processing of verification results
JB/T 4279.6--94
6.1 A verification certificate shall be issued to the qualified enameled round wire peeling tester. A verification result notice shall be issued to the unqualified one. The cover of the verification certificate and verification result notice is shown in the appendix of JB/T4279.1. 6.2 The initial calibration of the enameled wire peeling tester is carried out according to all the calibration items. During the periodic calibration, only the items specified in Articles 5.1.3.2 and 5.3 of this standard need to be calibrated.
6.3 The calibration cycle of the enameled round wire peeling tester is generally set at 2 years.
Additional instructions:
This standard was proposed and managed by the Shanghai Cable Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery Industry and others, and the main drafter of this standard was Zhu Bing.
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