What is BS EN IEC 60684-3-247 - Heat-shrinkable polyolefin sleeving about ?
BS EN IEC 60684 is an international standard that discusses flexible insulating sleeving for electrical purposes. The main objective of the BS EN IEC 60684 series is to ensure that the insulating sleeving manufactured offers required level of electrical resistance.
BS EN IEC 60684-3-247 gives 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.
Who is BS EN IEC 60684-3-247- Heat-shrinkable polyolefin sleeving for ?
BS EN IEC 60684-3-247 on flexible insulating sleeving is relevant to:
- Manufacturers of heat-shrinkable polyolefin sleeving
- Electrical installation companies
- Substations
- Power distribution companies
- Telecommunication industry
Why should you use BS EN IEC 60684-3-247- Heat-shrinkable polyolefin sleeving ?
Heat-shrinkable polyolefin sleeving is critical to electrical applications as it offers excellent insulation and acts as a corrosion-resistance protective layer.
Since these types of sleeving cover a significantly large range of sizes and wall thicknesses, BS EN IEC 60684-3-247 provides guidance on the range of sizes available.
BS EN IEC 60684-3-247 also covers property requirements, requirements for dielectric strength and breakdown voltage, and standard references for test methods to establish conformity of the same.
Complying with BS EN IEC 60684-3-247 requirements can ensure the heat-shrinking polyolefin sleeving provides excellent electrical insulation and incidents of splitting and product failure, are minimized. If you are a manufacturer of polyolefin sleeving, adopting standardized practices can enhance reliability and credibility of your products.
What’s changed since the last update ?
BS EN IEC 60684-3-247:2019 supersedes BS EN 60684-3-247:2011+A1:2017, which is withdrawn. This edition includes the following significant technical change with respect to the previous edition:
- Removal of the color fastness to light test, as this is covered by the test for carbon black content
- Change of low-temperature flexibility test to -20 °C to align with sheet 214
- Change of final conditioning temperature of peel strength samples to 200 ºC to align with the temperature in Clause 5
- Removal of the fungus resistance test as there is no evidence that fungus growth is an issue either by testing or in use