FUSES Clause Samples
The 'Fuses' clause defines the requirements and standards for the installation and maintenance of electrical fuses within a property or facility. It typically specifies the types of fuses to be used, their ratings, and the responsibilities for ensuring they are properly installed and replaced as needed. For example, it may require that only certified fuses matching the equipment specifications are used and that faulty fuses are replaced promptly by qualified personnel. This clause ensures electrical safety, prevents equipment damage, and reduces the risk of fire or electrical hazards by mandating proper fuse management.
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FUSES i. Fuses shall be HRC, preferably link type with a minimum interrupting capacity equal to the short circuit current.
ii. Fuses shall be furnished complete with fuse base & fittings of such as to permit easy & safe replacement of fuse element. Visible indicated indication shall be provided on blowing of the fuse.
FUSES. 1. Fuses for disconnects to be current limiting UL class J, RK1 or RK5 and of the appropriate voltage, delay or non-delay characteristic, and current rating to provide complete short circuit and overload protection per NEC sections regarding component selection.
2. Fuses located in the combiner boxes protecting PV string branch circuits shall be UL listed 600V or 1000V DC rated, be in “finger-safe” type fuse holders providing load break disconnect capabilities when changing fuses. Midget fuses and fuse holders used in these circuits must be fully DC rated and adequate DC short circuit withstands and let-through capability must be provided for all power situations including “back-fed” conditions.
FUSES. 7.1 Fuse-links shall be of the striker pin type, shall be hermetically sealed and shall be suitable for use under oil.
7.2 The fuse-link carriage shall be suitable to accept either 254 mm or 359mm long fuses both with a diameter of 63,5mm. The carriage shall be adjustable for this purpose and shall not necessitate additional parts.
7.3 Automatic shutters shall be provided to safeguard against inadvertent contact with live parts when the fuse carriage is removed.
7.4 Three spare fuses in addition to the three fuses supplied with the fused oil switch shall be supplied with each unit. The rating of the fuses will be specified in the Detail Technical Specification.
FUSES. For all enclosures except NEMA 7 & 9, fusible switches rated 100 through 600 amperes at 240 volts and 30 through 600 volts shall have a UL approved method of field conversion from standard Class H fuse spacing to Class J. fuse spacing. The switch also must accept Class R fuses and have provisions for field installation of a UL listed rejection feature to reject all fuses except Class R. The UL listed short circuit rating of the switches shall be as required by design calculations when Class R or Class J fuses are used with the appropriate rejection schemes. The UL listed short circuit rating of the switch, when equipped with Class H fuses, shall be 10,000 rms symmetrical amperes. For NEMA 1 and 3R enclosures; 800 and 1200 ampere switches shall have provisions for Class l fuses and shall have a UL listed short circuit rating as required by the design calculations.
FUSES. Where fuses are used, at least one extra fuse of each type and rating used shall be supplied and attached to the applicable units of the equipment. Panel-mounted fuse posts shall be such as to permit renewal of fuses without use of tools.
FUSES. A. Provide all fuses as required. Fuses shall be rated for voltage applied, non- renewable, dual elements, cartridge type, unless otherwise noted.
FUSES. A. Provide all fuses as required. Fuses shall be rated for voltage applied, non- renewable, dual elements, cartridge type, unless otherwise noted.
9. DRY TYPE TRANSFORMERS
A. Furnish and install dry type transformers to provide 120/208 volt, 3-phase, 4-wire power as required.
B. Transformers shall utilize a Class H insulation and shall comply and must be tested in accordance with the requirements of NEMA, ASA and AIEE standards. Transformers shall have ventilated enclosures for natural draft cooling and designed for indoor installation.
C. Transformers shall have universal voltage taps; (4) 2-1/2% below normal and (2) 2% above normal.
FUSES. 6.10.1 Fuses shall comply with BS 2692.
6.10.2 Fuse links shall be of the striker pin type, hermetically sealed and shall be suitable for use under oil.
6.10.3 The fuse link carriage shall be suitable to accept either 254mm or 359mm long fuses both with a diameter of 63,5mm. The carriage shall be adjustable for this purpose and shall not necessitate additional parts.
FUSES. All applicable items above are available for sale on this Contract but only from the following Manufacturers: AB Technology ▇▇▇▇▇▇▇ - Power Systems Reliance Controls ABB ▇▇▇▇▇▇▇ Acme Transformer Rennsteig ACF (Pencom) Ideal Rittal Acme Ideal Tridon Riverside Manufacturing (Faria) Advanced Energy ISO R-K Electronics Advanced Protection Technologies ITE Robertshaw Airpax JIT Manufacturing Rockwell Akron Porcelain & Plastics ▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇ Electrical ▇▇▇▇▇-▇▇▇▇▇▇▇ ▇▇▇▇ Wire Russellstoll Altronix Kaf-tech Safety Technology International American Circuit Breakers KB Electronics Salisbury American Midwest Power (AMP) ▇▇▇▇▇▇▇▇ Samlex America American Power Conversion ▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ Engineering American Presto Corp Klockner ▇▇▇▇▇▇▇ ▇▇ Relays Ametek Kohler Power Sea Dog Line AmRad Engineering ▇▇▇▇▇▇ Gyr Sensata Appleton ▇▇▇▇ Sensata APsystems ▇▇▇▇ USA Sensor Switch Ark-plas L-com Sentry Switch ▇▇▇▇ ▇▇▇▇▇▇ Setra Systems Inc ▇▇▇▇ Technologies ▇▇▇▇▇▇▇ Shurtape Automatic Timing & Controls (ATC) Leviton Sick Optic Avtron Leviton Load Centers Siemens Azuray Technologies Line Hardware Silfab Solar Badger Meter Linemaster SMA Baldor LiquidTight SnapNrack Banner Engineering LIttelfuse Socomec Baumer Loctite Sola Deck ▇▇▇▇ Mag Daddy Sola Hevi-Duty BIC Harnessing Magnecraft Solar Solutions Blue Diamond Pumps Magnitude Products LLC Solar4America Blue Oak PV Mainstream Engineering Corp. SolarEdge Blue Sea Systems Marathon Motors Sol-Ark Bosch Marathon Special Products Solartech Power Bosch Intrusion Marine Tech SolarWorld Bosch Security ▇▇▇▇▇▇ Solectria ▇▇▇▇▇ ▇▇▇▇▇ Bellofram Solmetric Brighton-Best International Master Appliance Sonnen BRK Brands ▇▇▇▇▇▇ SPAN Energy Management BRK-First Alert Mechanical Products Company Square ▇ - ▇▇▇▇▇▇▇▇▇ Broan ▇▇▇▇▇▇▇ International SSAC ▇▇▇▇▇▇ Utility Meltric ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Mencom Star Stainless Cable Ties Unlimited Mennekes Staubli Cable USA ▇▇▇▇▇▇▇ Manufacturing Staubli Electrical Connectors ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Carlisle Micro Switch Stelpro Design Challenger Micron Streamlight ChargePoint Middle Atlantic Products ▇▇▇▇▇▇▇▇▇-▇▇▇▇ Cinch Connectors Midland Metal Sumitomo Citel Midnite Solar SunModo Cobra Wire and Cable Midwest Sunrise Technologies ▇▇▇▇ ▇▇▇▇▇▇ Midwest Electrical Suntech Continental Cordage Milbank Sylvania ▇▇▇▇▇▇ Milwaukee Symcom ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Mission Solar Energy Symmetery Electronics ▇▇▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇ Syncom Technologies ▇▇▇▇▇▇ Power Systems Molex TDK Lambda Americas ▇▇▇▇▇▇-▇▇▇▇▇ Monoprice TE Connectivity ▇...
FUSES. All low voltage fuses for disconnects must be current limiting UL class J, RK1, or RK5 and of the appropriate voltage, delay or non delay characteristic, and current rating to provide both complete short circuit and overload protection per NEC sections regarding component protection. Fuses in the combiner boxes protecting PV string branch circuits must be UL class CC midget type, be in “shock-safe” type fuse holders “touch safe”, providing load break disconnect capabilities when changing fuses. Midget fuses and fuse holders used in these circuits must be fully DC rated and adequate DC short circuits withstand capability must be provided for all power situations including “back-fed” conditions. All fuses and other protective devices and holders must be engineered to safely protect system components under “worst case” expected field conditions including temperature extremes. PV panel strings must be individually protected from short circuit conditions that may originate within the panels themselves.