JY/T 0183-2011Test ball (English PDF)

3.1 Naming rules

The model name of the product is in accordance with JY 0026-1991.

3.2 Nomenclature

The test ball is named.

D - YDQ - J - 10/160 Product main parameters (diameter/length of insulation rod, mm) Product feature code, metal Product name Pinyin prefix, electroscope Product model classification code, special equipment for electromagnetics Model example.

D-YDQ-J-10/160 stands for electric test ball. The ball is made of metal. The diameter of the insulation rod is 10mm and the length is 160mm.

4.1 Working environmental conditions

4.1.1 Working temperature. -10 °C ~ 40 °C.

4.1.2 Relative humidity. not more than 80% RH (40 ° C).

4.2 Appearance and structure requirements

4.2.1 The test ball shall consist of a metal ball and an insulated handle connected to it.

4.2.2 The diameter of the metal ball should be 15mm ± 1mm. The surface of the small ball should be chrome-plated and polished, and there should be no peeling or rusting of the coating.

4.2.3 The diameter of the insulated handle shall be 10mm ± 1mm, and the length shall not be less than 160mm. The surface shall be smooth, free of scratches and burrs, and embedded at one end M4 bolt.

4.2.4 The rest shall comply with Chapters 6 and 7 of JY 0001-2003.

4.3 Insulation performance of the handle

Hold the electroscope and touch the electroscope, there should be no visible leakage phenomenon. According to the test method of 5.2, the opening angle of the foil within 20s should not have Visible change.

5.1 Visual and structural inspection

5.1.1 Visual inspection and sensory inspection of appearance and structure shall meet the relevant requirements of this standard.

5.1.2 The relevant dimensions of the product shall be measured with a vernier caliper with a division value of 0.02mm and a steel ruler with a division value of 1mm, which shall comply with 4.2.

Claim.

5.2 Insulation performance test

The test is performed under the conditions of an ambient relative humidity of 75% to 80%.

First, the ability of the electroscope to remain charged after being charged should be tested. Electrification (foil or pointer) the deflection of the device foil or pointer should not be less than 30°. The electroscope foil or pointer should have no visible drop within 30s. Then hold the test ball to make the test when the ball touches the electroscope, the angle of the foil or pointer of the electroscope decreases during contact, and then there should be no visible drop for 20s.

Under the conditions of the maximum relative humidity specified in this standard, the gold foil electroscope should be charged with an opening angle greater than 30 °. Hold the electroscope in the middle of the insulated handle, the metal ball contacting the metal ball of the gold foil electroscope with a metal ball shall meet the requirements of 4.3.

6.1 Inspection classification

The inspection of this product shall be divided into factory inspection, type inspection and quality supervision inspection.

6.2 Inspection items

The inspection items and inspection methods of the electric inspection ball shall conform to Table 1.

Table 1 Inspection items and inspection methods of electric ball

Item No. Inspection Item Standard Provisions Factory Inspection Type Inspection

1 Appearance and structure 4.2 -

2 Insulation performance 4.3 -

3 Signs, instructions, packaging 7 -Note. "-" in the table means all inspection items, "-" means sampling inspection items, and "-" means no inspection items.

6.3 Sampling method

6.3.1 The factory inspection shall be based on the natural batch of delivery, and the type inspection shall be based on the inventory array.

6.3.2 During the factory inspection, all the inspection items should be inspected first, and then samples should be taken from the qualified products for all inspection items, and the sampling inspection items should be inspected.

6.3.3 The samples for type inspection shall be taken from the products that passed the factory inspection.

6.3.4 The sampling methods for factory inspection and type inspection shall be in accordance with the relevant provisions of JY 0002.

6.4 Non-conformance determination

6.4.1 The determination of sampling inspection shall be in accordance with the relevant provisions of JY 0002.

6.4.2 The criteria for the failure of a single sample shall be in accordance with the relevant provisions of JY 0002.

6.4.3 The inspection of all inspection items shall be determined according to the unqualified criterion of a single sample.

6.4.4 Items 1 and 2 in Table 1 are the main performance indicators.

6.5 Review rules

6.5.1 Unqualified batches and products can be submitted for inspection again after rework.

6.5.2 If the cause of the batch failure is a sampling inspection item, the item shall be changed to a full inspection during the re-inspection.

6.6 Quality supervision inspection

Quality supervision and inspection shall be in accordance with the relevant provisions of JY 0002.

7.1 Signs and instructions

Should comply with the provisions of Chapter 11 of JY 0001-2003.

7.2 Packaging, transportation and storage

7.2.1 The product shall be sealed with plastic bags, and the outer surface of the packaging box shall be marked with "Afraid of Wetness".

7.2.2 The rest shall comply with the provisions of Chapter 12 of JY 0001-2003.