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125 West Park Loop NW (Huntsville, AL)

Main Facility
125 West Park Loop NW,
Huntsville, AL 35806
T: +1.256.722.8500
Email: qtquotes@curtisswright.com

Electrical Splicing Accessories

Curtiss-Wright Nuclear supplies safety-related and environmentally qualified electrical interconnection products, known under the brand name EGS. Manufactured in Huntsville, Alabama, all EGS electrical devices are qualified by test for the harshest conditions, inside and outside containment areas, in PWR, BWR, and CANDU reactors. EGS is comprised of a broad range of products, from Class-1E compact splices up to reactor cable assemblies, and has become internationally known as a world leader in the supply of safety-related connection devices.

All EGS products are manufactured in accordance with ANSI N45.2, 10CFR50 Appendix B, and 10CFR21, in addition to being NQA-1, NUPIC, and NIAC audited.

Models

    Compact Splice CANDU

    The Compact Splice is a light-weight, simple solution to single-conductor splicing needs. This splice can be installed, in plant, with little training and the use of a crimp tool and heat gun. The Compact Splice has been CSA qualified for use with both solid conductor and stranded wire.

    Qualification Levels

    • Qualified life: 40 years at 62.6°C (150°F)
    • Radiation: tested to 8.31E7 rads gamma
    • LOCA: tested to 171°C (340°F) and 15.2 psig (206.2 kPa)

    Qualification Standards

    • 10CFR50.49
    • IEEE 323-1974/83
    • IEEE 383-1974
    • NRC Regulatory Guide 1.89
    • ANSI N45.2
    • 10CFR50/Appendix B
    • 10CFR21
    • NQA-1

    Compact Splice PWR/BWR

    The Compact Splice is a light-weight, simple solution to single- conductor splicing needs. This splice can be installed, in plant, with little training and the use of a crimp tool and heat gun. The Compact Splice has been CSA qualified for use with both solid conductor and stranded wire.

    Qualification Levels

    • Qualified life: 40 years at 150°F (65.6°C)
    • Radiation: tested to 2.30E8 rads gamma
    • LOCA: tested to 448°F (231°C) and 126 psig (970.1 kPa)

    Qualification Standards

    • 10CFR50.49
    • IEEE Standards (vary per applicable EQ Qualification Report)
    • NRC Regulatory Guide 1.89
    • ANSI N45.2
    • 10CFR50/Appendix B
    • 10CFR21
    • NQA-1

    Conformal Coating (PECC)

    PECC is a transparent resin solution that offers excellent dielectric properties, moisture resistance, and thermal shock properties. PECC’s primary usage is as a coating applied to terminal blocks and other electrical terminations. PECC eliminates excessive leakage current during postulated accident conditions and minimizes loss of insulation resistance.

    Key Features

    • One-part compound—no mixing or measuring
    • Easy application
    • May be applied to energized circuits
    • Suitable for most qualified non-polystyrene terminal block materials
    • Curable at room temperature
    • Tack-free in one hour
    • Easily removed for later access to circuits

    Qualification Levels

    • Qualified life: 40 years at 194°F (90°C )
    • Radiation: tested to 2E7 rads gamma
    • Seismic: 6.0g ZPA
    • Accident tested to 355°F (179°C), 30 psig (308.2 kPa), and 100% R.H.

    Qualification Standards

    • IEEE 323-1983
    • IEEE 344-1975
    • 10CFR50.49
    • ANSI N45.2
    • 10CFR50/Appendix B
    • MIL-I-46058C qualified
    • IPC-CC-830A qualified

    Electrical Splicing Tape

    An easy-to-install alternate for electrical splicing.

    Key Features

    • Self-bonding
    • Easy Installation
    • In-line, “V”, 3-way and parallel
    • Crimped or bolted
    • 600 volt (LOCA)
    • 266°F (130°C) tape rating
    • EQ tested
    • No maintenance
    • Low current leakage
    • High insulation resistance
    • No adhesives
    • No special cleaners
    • No special tools
    • Flame resistant
    • Protects against oils, chemicals, ozone, heat and sunlight

    Qualification Levels 600V

    • Qualified life: 40 years at 194°F (90°C)
    • Radiation: tested to 2E8 rads gamma
    • LOCA: tested to 435°F/80 psig (223°C/652.9 kPa), 30-day
    • Chemical spray

    Medium Voltage

    • Qualified life: 40 years at 194°F (90°C)
    • Radiation: tested to 5.2E7 rads gamma
    • HELB: tested to 412°F (211°C) peak, 6 hour duration

    Qualification Standards

    • ANSI N45.2
    • 10CFR50/Appendix B
    • 10CFR50.49
    • 10CFR21
    • NQA-1
    • IEEE Standards (vary per applicable EQ Qualification Report)

    EGS Flexible Metal Conduit

    The EGS Flexible Metal Conduit is another member of the nuclear qualified EGS product line. In many cases, it is necessary to make electrical connections via a flexible conduit. For this application, the EGS Flexible Metal Conduit acts as a leak-tight pressure boundary in an accident environment. The flexible conduit utilizes all metallic construction (321 SST), thus eliminating concern for time-temperature/radiation aging effects. This lightweight conduit is available in 1/2" to 1-1/2" diameters. The ends may be equipped with male and female straight or swivel fittings (300 Series SST) as required. The conduit assembly is comprised entirely of stainless steel and is available in lengths from 18". Units are supplied in lengths as specified by the customer. Curtiss-Wright Nuclear will assist, upon request, in selecting the proper length of conduit based on geometry and bend radius parameters of the various sizes of flexible conduit.

    Key Features

    • All stainless steel/welded construction
    • Leak-tight pressure boundary
    • Conduit diameters from 1/2" to 1-1/2"
    • Lengths available from 18"
    • Styles available with male, female, or swivel fittings and integral reducers
    • Lightweight
    • Easy to install
    • Useable temperature range from cryogenic to in excess of 1000°F (537.78°C)

    Qualification Levels

    • Radiation: Not affected by radiation due to all metallic construction
    • Thermal Aging: Not affected by temperature due to all metallic construction
    • Seismic: Tested in excess of 6.0g ZPA
    • LOCA: tested to 412°F (211.1°C), 88 psig (708.1 kPa), chemical spray and 100% R.H.
    • Supplied under a quality assurance program in accordance with ANSI N45.2 and 10CFR50, Appendix B

    Qualification Standards

    • IEEE 323-1974
    • IEEE 344-1975
    • IEEE 382-1980
    • 10CFR50.49

    EGS GRAYBOOT Rack

    The EGS GRAYBOOT rack is a rugged and easy-to-install device that organizes multiple splice areas such as an electrical enclosure. The rack provides easier splice identification for good housekeeping and overall organized appearance.

    Key Features

    • Easy installation/simple assembly procedures
    • Multi-splice capability (up to 6 GB-1 splices per row without cover clamp)
    • Avoids messy and confusing multiple splice locations
    • 304SST
    • Custom mounting footprint available
    • No special tools or preassembly required
    • No maintenance
    • Compatible with ALARA considerations

    Qualification Levels

    • Seismic: ZPA of 6.0g horizontal & 7.3 ZPA vertical
    • Supplied under a quality assurance program in accordance with ANSI
    • N45.2 and 10CFR50, Appendix B

    Qualification Standards

    • IEEE 344-1987

    EGS Splice Rack

    The EGS Splice Rack is a rugged, user-friendly device that organizes multiple splice areas, such as those within electrical enclosures. The rack provides easy splice identification for safety, convenience, and organization.

    Key Features

    • Easy installation/simple assembly procedures
    • Multi-splice capability
    • Avoids messy and confusing multiple splice locations
    • 304SST
    • Custom configurations and mounting footprints available
    • No special tools or preassembly required
    • No maintenance
    • Compatible with ALARA
    • Considerations

    Qualification Levels

    • Seismic: ZPA of 6.0g horizontal & 7.3 ZPA vertical
    • Supplied under a quality assurance program in accordance with ANSI
    • N45.2 and 10CFR50, Appendix B

    Qualification Standards

    • IEEE 344-1987

    EGS Thread Sealant (P-1)

    EGS P-1 is a universally applicable thread sealant for use on many different materials, products, and size ranges. The sealant is an easy-to-apply graphite paste, made in-house in Huntsville, Alabama.

    Key Features

    • Qualified for use on 1/4" to 1-1/2" NPT joint
    • Applicable to stainless steel, brass, galvanized steel, and carbon steel
    • Seals both new and used threads
    • Easy application
    • No curing required

    Qualification Levels

    • Acceptable for service temperatures up to 850°F (454°C)
    • Radiation resistant
    • Seismic: 6.0g ZPA
    • LOCA: tested to 412°F (211°C), 88 psig (708.1 kPa), 100% R.H, and chemical spray

    Qualification Standards

    • IEEE 323-1974
    • IEEE 344-1975
    • 10CFR50.49
    • ANSI N45.2
    • 10CFR50/Appendix B