NEC are a range of polyolefin semi-rigid heat shrinkable end caps, which are coated internally with a hot melt adhesive. They offer a quick and very effective method of sealing against moisture in most types of communication and electrical cables. NEC are also resistant to corrosion, abrasion and mechanical damage.
Physical Properties
| Shrink ratio | >2:1 |
| Material | Cross-linked polyolefin with adhesive lining |
| Flexibility | Semi rigid |
| Colours | Black |
| Tensile strength | 14.0N/mm” |
| Ultimate elongation | 300% min |
| Relative density | 1.1 max. |
Thermal Properties
| Operating temperature range | -55°C to + 105°C |
| Shrinkage temperature | >135°C |
| Storage stability | Very good |
Electrical Properties
| Dielectric strength | 11KV/mm |
Chemical Properties
| Water absorption | 0.5% (24h at 25°C) |
| Corrosion | Non-corrosive |
| Flammability | Adhesive not self-extinguishing |
| PRODUCT CODE REF. | Internal Diameter (mm) | Nominal wall thickness (mm) after heating (full recovery) | Standard reel size (mtrs) | |
|---|---|---|---|---|
| Expanded As supplied min. | Recovered after heating max. | |||
| NEC15001 | 10 | 4.5 | 2.2 | 35 |
| NEC15002 | 14 | 6 | 2.2 | 58 |
| NEC15003 | 17 | 9 | 2.5 | 52 |
| NEC15004 | 37 | 17.5 | 2.8 | 98 |
| NEC15005 | 52 | 25 | 3.5 | 140 |
| NEC15006 | 100 | 46 | 3.8 | 176 |
| NEC15016 | 70 | 35 | 3.8 | 165 |