What is BS EN IEC 60684-3-216 - Limited-fire-hazard 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 60684-3-216 gives requirements for four types of heat-shrinkable, flame-retarded, limited-fire-hazard sleeving with a thermal endurance rating of 105 °C as shown below.
- Class A: thin wall shrink ratio 2:1 internal diameter up to 102,0 mm
- Class B: medium wall shrink ratio 2:1 internal diameter up to 60,0 mm
- Class C: thick wall shrink ratio 2:1 internal diameter up to 51,0 mm
- Class D: medium wall shrink ratio 3:1 internal diameter up to 40,0 mm
These sleevings are normally supplied in black, red, green, blue, white, yellow and green/yellow colours. However, the selection of a material by a user for a specific application will be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone.
Who is BS EN IEC 60684-3-216 - Limited-fire-hazard sleeving for ?
BS EN IEC 60684-3-216 on flexible insulating sleeving is relevant to:
- Manufacturers of sleeving
- Electrical installation companies
- Substations
- Power distribution companies
- Telecommunication industry
Why should you use BS EN IEC 60684-3-216 - Limited-fire-hazard sleeving ?
Sleeving is critical to electrical applications as it offers excellent insulation and acts as a corrosion-resistance protective layer.
BS EN IEC 60684-3-216 covers about four types of classes that are available as custom items which has been mentioned in a detailed form including their sizes and colours.
BS EN IEC 60684-3-216 specifies property requirements that include its dimensions, longitudinal change, and temperature which is helpful to determine the properties of the insulating sleeves.
Materials that conform to these specifications meet established levels of performance. Complying with BS EN IEC 60684-3-216 requirements can ensure the sleeving provides excellent electrical insulation and protection against fire hazards, thus minimizing product failures. If you are a manufacturer of sleeving, adopting standardized practices can enhance reliability and credibility of your products.
What’s changed since the last update ?
BS EN IEC 60684-3-216:2019 supersedes BS EN 60684‑3‑216:2005+A2:2014, which is withdrawn. This edition includes the following significant technical change with respect to the previous edition:
- The temperature at which the sleeving is shrunk in a forced-air circulation oven for (5 ± 1) min has been increased from (150 ± 5) °C to (200 ± 5) °C
