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What are the criteria for the classification of A, B, C, D categories for flame retardant cables?

日期: 2017-01-18
source:
Views: 30

Generally refers to the classification of flame retardant cables

But when

GA

-306.1-2007 "Flame-retardant and fire-resistant cables: plastic insulation and fire-resistant cable classification and requirements" is divided into: A, B, C;

And the flame retardant level is divided into four, each class according to flame retardant type is divided into A class, B class, C class, flame retardant level mark are:

Class A Class: ΙA Class II Class A: ΠA; Class 3 Class A: IIIA; Class 4 Class A: IVA

Class B Class: ΙB Class 2 Class B: ΠB; Class 3 Class B: IIIB; Class 4 Class B: IVB

Class C Class: ΙC Class 2 Class C: ΠC; Class 3 Class C: IIIC; Class 4 Class C: IVC

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