BS EN 61249-2-27:2013
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
| Označení normy: | BS EN 61249-2-27:2013 |
| Počet stran: | 26 |
| Vydáno: | 2013-04-30 |
| ISBN: | 978 0 580 69327 4 |
| Status: | Standard |
BS EN 61249-2-27:2013
This standard BS EN 61249-2-27:2013 Materials for printed boards and other interconnecting structures is classified in these ICS categories:
- 31.180 Printed circuits and boards
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.
| Type A : Medium wall, | internal diameter up to 200,0 mm typically |
| Type B : Thick wall, | internal diameter up to 200,0 mm typically |
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.