Description:
WISHPOWER has set a standard of excellence for polymer distribution cutouts. Our composite-insulated cutout incorporates an industry recognized silicone rubber insulating material with superior hydrophobic qualities. WISHPOWER offers Type L cutouts in both composite and porcelain designs, which provide reliable overcurrent protection for primary distribution circuits. Overcurrent protection safeguards an electric system from excessive currents produced by abnormal conditions such as faults, line or equipment overloads, or equipment failures. Composite Type L cutouts are ruggedly constructed and will provide full-range overcurrent protection from minimum melt of a given fuse link to the maximum nameplate interrupting current rating of the cutout.
Composite cutouts are available in 12-15.5 kV, 24-27 and 33-38 kV kV voltage ratings. Composite Type L cutouts are available with a 100 A or 200 A fuseholder or with a 300 A disconnect blade.
Composite-insulated and porcelain Type L cutouts have been tested to, and meet or exceed all requirements set forth by IEEE Std C37.41™ and IEEE Std C37.42™ standards.
Application:
Proper cutout application requires several major system considerations: system operating voltage, insulation level, type of system grounding, maximum available fault current the cutout may be subjected to, and anticipated maximum continuous load current.
The composite Type L cutout voltage rating is the maximum design voltage of the cutout. It can be applied, without restrictions, on any three-phase system that has system line-to-line voltage less than or equal to the cutout rating. Type L cutouts can also be applied on single phase or three-phase solidly grounded wye connected circuits. The circuit can have line-to-neutral voltages up to the voltage rating of the cutout as long as the maximum recovery voltage does not exceed the cutout's rating. The Basic Impulse Insulation Level (BIL) of a cutout should be coordinated with the insulation of other connected apparatus. The interrupting rating of a cutout should be greater than or equal to the maximum available system fault current unless used in conjunction with current-limiting fuses. The cutout selected should have a continuous current rating sufficient to handle the expected load. The 100 A rated fuseholder accepts fuse links from a fraction of 1 A to 100 A. The 200 A fuseholder will accept fuse links with ratings above 100 A to 200 A. When selecting a cutout or fuse, it is important to consider future load growth and other planned system expansion.
WISHPOWER offers full-range current-limiting fuses for applications where system fault current exceeds the maximum interrupting rating of an expulsion fuse.
Features:
The backbone of the polymer-insulated Type L cutout is comprised of an E-glass fiberglass rod with crimped-ongalvanized steel hanger and end fittings. The crimping process results in a robust design capable of withstanding numerous opening and closing operations and the severe forces present during fault current interruptions. The frame is over molded with the industry leading, track resistant, silicone rubber polymer-housing. Independent laboratory tests have verified the superiority of silicone rubber in terms of resistance to UV degradation, surface tracking/performance in contaminated environments, and other important insulating properties. The complete cutout assembly works together as a system and will stand up to years of exposure to environmental extremes. The fuseholder is constructed of an epoxy impregnated glass filament wound tube over a moisture-proof inner polymer liner material. A large bronze cast pull ring is utilized for ease of installation and re-fusing. The bronze trunnion, with lifting ring having both front and side accessibility, is silver plated for minimum contact resistance. The grooved flipper assembly controls link tension, assures low-fault current interruption and prevents link breakage on "close-in."
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Audited Supplier 
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