BS EN 61249-2-27:2013
$142.49
Materials for printed boards and other interconnecting structures – Reinforced base materials clad and unclad. Bismaleimide/triazine modified with non-halogenated epoxide woven glass laminate sheets of defined flammability (vertical burning test), copper-clad
Published By | Publication Date | Number of Pages |
BSI | 2013 | 26 |
This part of IEC 60684 gives the requirements for two types of heat-shrinkable, polyolefin sleeving, dual wall, not flame retarded with a nominal shrink ratio of 3:1.
This sleeving has been found suitable for use at temperatures of up to 100 °C.
These sleevings are normally supplied in colour black.
Since these types of sleevings cover a significantly large range of sizes and wall thicknesses, Tables A.1 and A.2 provide a guide to the range of sizes available. The actual size shall be agreed between the user and supplier.
Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone.
PDF Catalog
PDF Pages | PDF Title |
---|---|
6 | English CONTENTS |
8 | 1 Scope 2 Normative references 3 Materials and construction 3.1 General 3.2 Resin system |
9 | 3.3 Reinforcement 3.4 Metal foil 4 Internal marking 5 Electrical properties Tables Table 1 – Electrical properties |
10 | 6 Non-electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet 6.1.1 General 6.1.2 Indentations (pits and dents) 6.1.3 Wrinkles 6.1.4 Scratches Table 2 – Indentations |
11 | 6.1.5 Raised areas 6.1.6 Surface waviness 6.2 Appearance of the unclad face 6.3 Laminate thickness Table 3 – Nominal thickness and tolerance of metal-clad laminate |
12 | 6.4 Bow and twist 6.5 Properties related to the copper foil bond 6.6 Punching and machining Table 4 – Bow and twist Table 5 – Pull-off and peel strength |
13 | 6.7 Dimensional stability 6.8 Sheet sizes 6.8.1 Typical sheet sizes 6.8.2 Tolerances for sheet sizes 6.9 Cut panels 6.9.1 Cut panel sizes 6.9.2 Size tolerances for cut panels Table 6 – Dimensional stability |
14 | 6.9.3 Rectangularity of cut panels 7 Non-electrical properties of the base material after complete removal of the copper foil 7.1 Appearance of the dielectric base material Table 7 – Size tolerance for cut panels Table 8 – Rectangularity of cut panels |
15 | 7.2 Flexural strength 7.3 Flammability 7.4 Water absorption Table 9 – Flexural strength Table 10 – Flammability |
16 | 7.5 Measling 7.6 Glass transition temperature and cure factor 8 Quality assurance 8.1 Quality system Table 11 – Water absorption Table 12 – Measling Table 13 – Glass transition temperature and cure factor |
17 | 8.2 Responsibility for inspection 8.3 Qualification inspection 8.4 Quality conformance inspection 8.5 Certificate of conformance 8.6 Safety data sheet 9 Packaging and marking |
18 | 10 Ordering information |
19 | Annex A (informative) Engineering information |
21 | Annex B (informative) Common laminate constructions Table B.1 – Thickness |
22 | Annex C (informative) Guideline for qualification and conformance inspection Table C.1 – Qualification and conformance testing |
23 | Bibliography |