ASTM D2303绝缘材料液态污染,斜面漏电痕迹和腐蚀标准试验方法

ASTM D2303 Standard Test Methods for Liquid-Contaminant, Inclined-Plane Tracking and Erosion of Insulating Materials
ASTM D2303 绝缘材料液态污染,斜面漏电痕迹和腐蚀标准试验方法

1. Scope
1.1 These test methods cover the evaluation of the relative tracking and erosion resistance of insulating solids using the liquid-contaminant, inclined-plane test. The following test methods also can be used to evaluate the tracking resistance of materials: D 2132 (contaminants: dust and fog) and D 3638 (contaminant: conductive liquid drops).
1.2 Two tracking and one erosion test procedure are described:
1.2.1 A "variable voltage method" to evaluate resistance to tracking.
1.2.2 A "time-to-track method" to evaluate resistance to tracking.
1.2.3 A method for quantitative determination of erosion ().
1.3 While a particular contaminant solution is specified, other concentrations of the same contaminant, or different contaminants may be used to simulate different environmental or service conditions.
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.

2. Referenced Documents (purchase separately)
ASTM Standards
ASTM D374 Test Methods for Thickness of Solid Electrical Insulation
ASTM D1711 Terminology Relating to Electrical Insulation
ASTM D2132 Test Method for Dust- and Fog-Tracking and Erosion Resistance of Electrical Insulating Materials
ASTM D3638 Test Method for Comparative Tracking Index of Electrical Insulating Materials
Index Terms
electrical; erosion; erosion resistance; inclined-plane; liquid contaminant; surface arcing; surface tracking; time-to-track method; track; tracking; tracking resistance; tracking voltage; voltage method; wet tracking.

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 來源：防火網　發布時間：12/17/2013 點擊次數：918