T/GDWCA 0034-2018 Abolished Group standards

T/GDWCA 0034-2018 High-voltage insulation filler paste

Publish Date: 2018-08-01 Implement Date: 2018-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 20.00

Out of stock

Basic Information

Standard Code: T/GDWCA 0034-2018

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Power transmission and transformation equipment

ICS Name: Cable

Publish Date: 2018-08-01

Implement Date: 2018-09-01

Scope

Scope: This standard specifies a method for determining the insulating materials used in glue-impregnated paper casings. This standard is applicable to semi-fluid paste-like insulating materials with a density of 0.5 g/ml ± 0.02; Main technical content: I. The special insulating materials for glue-impregnated paper casings are thixotropic insulating materials developed by using refined white mineral oil and high-molecular materials through special processes. They have low density, low acid value, anti-corrosion properties, and excellent electrical performance, suitable for hot and cold filling. II. Raw materials: The raw materials for producing special insulating materials for glue-impregnated paper casings shall be white mineral oil of the above grade. III. Performance requirements: 1. Acid value: ≤ 0.3 mg KOH/g 2. Flash point: ≥ 200°C 3. Moisture: ≤ 30 mg/L 4. Oxidation induction period: ≥ 30 min 5. Cone penetration at room temperature @ 25°C: ≥ 350 dmm 6. Cone penetration at room temperature @ -40°C: ≥ 150 dmm 7. Oil separation (80°C, 24 h): ≤ 1.0% 8. Evaporation (80°C, 24 h): ≤ 1.0% 9. Relative dielectric constant (1 MHz, 23°C): ≤ 2.3 Ωcm 10. Breakdown voltage: ≥ 45 kV, etc.