This part gives the specific requirements for the construction and testing of electrical apparatus with the type of protection encapsulation “m”, parts of electrical apparatus and Ex components.
This part only applies for encapsulated electrical apparatus, encapsulated parts of electrical apparatus and encapsulated Ex components (hereinafter always referred to as “m” apparatus) where the rated voltage does not exceed 10 kV with a relative tolerance of +10 %.
This part supplements the general requirements in GB 3836.1.
1 Scope
2 Normative Reference
3 Terms and Definitions
4 General
5 Requirements for Compounds
6 Temperature
7 Constructional Requirements
8 Type Tests
9 Routine Verifications and Tests
10 Marking
Annex A (Informative) Basic Requirements for Compounds for “m” Apparatus
Annex B (Normative) Allocation of Test Samples
Annex C (Normative) Test Procedure during Thermal Cycling Test