Cross-linked cables, developed and produced using this physical method, are home and construction wiring with environmental-friendly, safe, long-lasting features. This product holds a significant share in the construction market in Western countries and is one of the ideal construction cables globally.

Soak the wire core or cable in hot water to observe the change in insulation resistance. Normally, the insulation resistance should not drop sharply and remain above 0.1 megohms/Km after immersion in 90-degree water.

If the insulation resistance rapidly drops and is even below 0.009 GΩ/Km, it indicates that the cable has not been properly processed with the appropriate radiation crosslinking technique and is not a radiation crosslinked low-smoke halogen-free flame-retardant cable.

Polyethylene or cross-linked polyethylene insulated materials are not suitable for identification by this method.