Dow HFDC-4202 NT is a long-life, water-tree-retardant, unfilled, crosslinkable, low density polyethylene insulation compound designed for medium voltage power cable insulation applications. HFDC-4202 NT has been designed to have a low level of additive bloom for a long storage life, low dusting and an enhanced degree of scorch retardance. The permanent tree-retardant additive provides improved performance in power cables in service involving exposure to moisture while retaining the excellent physical, electrical, and processing attributes of conventional, crosslinkable polyethylene.

HFDC-4202 NT compound provides electric utilities with:

• Advanced "water" tree-retardant technology, consistently outperforming conventional XLPE and conventional TR-XLPE in accelerated cable wet aging tests at ambient and elevated temperatures

• Proven in the field water tree retardance technology for over 25 years, at a broad cross section of geographical conditions, demonstrating excellent reliability and help achieving lowest life cycle costs

• Excellent electrical performance demonstrated by very high aged electrical strength and very low aged dissipation factor and power loss.

HFDC-4202 NT compound represents an advanced water tree-retardant, power cable insulation compound. HFDC-4202 NT is suitable for the insulation of power distribution cables rated up to 46 kV.

Specifications
HFDC-4202 NT tree-retardant compound is designed for use in power distribution cables. HFDC-4202 NT provides improved wet electrical performance and is recommended, with or without moisture barriers, for use as cable insulation up to and including 46 kV applications. Cables insulated with HFDC-4202 EC, using sound commercial fabrication manufacturing practice, would be expected to meet the latest editions of the following specifications and regulations:

• ANSI/ICEA: S-94-649, S-97-682, S-93-639 / NEMA WC74 (TR-XLPE requirements)

• AEIC: CS8

• RUS 50-70 (U-1)

• CEA: WCWG-01, WCWG-02

• UL 1072

• IEC: 60502, 60840

• CENELEC: HD 620 S1

• DIN VDE 0276-620

• BSI BS 6622, 7870-4

• GB/T 12706

• DL/T 1070