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6. Special PBT products and related applications
6.1 PBT arc-path resistant
The electronics and electrical sectors remain major consumers of PBTs. Plastics in this field are widely used for their electrical properties, and in particular their high insulating capacity.
Depending on the standard and construction of the electrical parts, and also on the field of application, a number of criteria must be met; these criteria are grouped together in a standard: DIN VDE 0110 (IEC664, 664A). This standard applies to low-voltage currents, in particular up to 1,200 V for direct currents and 1,000 V for alternating currents, with a rated frequency of up to 30 Hz.
Tracking current can be described as the passage of an unwanted current over the surface of an insulating material, resulting in insufficient...
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References
- WAMBACH (A.D.), KRAMER (M.) - Thermoplastics polyesters exhibit stable electrical and mechanical properties in hot, moist environments (Les polyesters thermoplastiques présentent des propriétés électriques et mécaniques stables dans des atmosphères chaudes et humides). - 29 th Annual Technical Conference,...
Standards and norms
Association française de normalisation Afnor http://www.afnor.fr
- Plastiques. Détermination du taux de cendres. Polyalkylène téréphtalates - NF T 51-540 - 11-85
- Poly(éthylène téréphtalate) en granulés. Détermination de la teneur en eau - NF T 51-541 - 10-82
- Plastiques. Détermination du comportement à la fusion (température de fusion ou plage de températures de fusion) des polymères semi-cristallins...
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