These extensions allow for high wattage 220 vac motion picture lights to be plugged into camtype distribution. Sep 26, 2016 a sample of nec ampacity rating tables. Ampacities are based on single isolated cable in air operated with opencircuited shield. Cable ampacity calculator electrical engineering portal. Aluminum 600v aerial triplex xlp cable is designed for use to supply power, usually from the pole mounted transformer to the users service entrance. Usamp prime insulated cable ampacity software models all types of underground power cables pipetype, extruded, and solid paper. Detailed graphical representation of virtually any type of power cable. New ampacity calculation and physical subviews in the component editor. Currentcarrying conductors in raceway, cable, or earth directly buried, based on ambient temperature of 30 c 86 f. See our innovative products in action and how they can help make your job easier. Overcurrent exists when current exceeds the rating of equipment or the ampacity of a conductor.
Type sc entertainment cable cut by the foot gencable. Gencables snake bite stage pin adapters are made with a 100a group 5 stage pin, 16 series cam lok connectors and ul and cul listed stage cable sc. The trick is selecting the correct overcurrent protection for a specific circuit. What is wire ampacity and how do you find ampacity rating. When designing electrical power systems, it is often necessary to determine underground cable ampacity. These contain the data utilized for the cable ampacity program. Normally the iec 60287 standard 1 is used for static ampacity calculation. Southwire is proud to announce that our company has achieved a spot on the. The cymcap software is dedicated to the calculation of ampacity and temperature rise. The standard employs the concept of thermal equivalent circuit 2. The development of high voltage xlpe cable systems goes back to the since then production and material technology have improved significantly, providing reliable and maintenancefree products to the utility industry. Also suitable for mobile and portable electrical equipment. The cymcap software is dedicated to performing ampacity and temperature rise calculations for power cable installations. Various methods are in use today including computer simulation, ampacity tables, and a.
High voltage xlpe cable systems techincal user guide brugg cables page 2. Determining the maximum current power cables can sustain without deterioration of any of their electrical properties is important for the design of. This rating has been determined by the nec national electrical code, which lists ampacity ratings for reallife installation examples. The cable ampacities tabulated for this paper were calculated with cymcap version 3. The ampacity of underground power cable lines is limited by the maximal allowable temperature of the conductor. Ampacity and other design considerations for medium voltage cables used in renewable energy applications earle c. Ampacity and other design considerations for medium voltage. Welding cable ampacity tables assume a duty cycle and a length, in a continuous application they have the exact same ampacity as building wire types of the same size. Conductor ampacity calculation part seven electrical. The user inputs basic parameters cable type, insulation type. This calculator also provides wire size correction factors for temperature, number of conductors in a raceway, and voltage drop for long wire runs. Custom cable and custom heat shrink shapes are another of our specialties.
When selecting a cable, one must know its wire ampacity rating. Lighting cable ul type sc csa type ppc 600v product construction conductor. The advanced wire ampacity calculator will calculate the maximum ampacity for a wire based on wire gauge, preferred or available wire insulation, conductor type and installation specifications. Number of conductors percentage 4 thru 6 80% 7 thru 9 70% 10 thru 20 50% 21 thru 30 45% 31 thru 40 40% 41 and above 35% insulation minimum temp. Comparison of finite element analysis to iec60287 for.
The aeic cable specifications are builtin to the program. Southwire is an active participant in industry trade shows and events. Most cable manufacturers provide ampacity tables on their websites. Ampacity or current carrying capacity is determined by the cross sectional area and composition of the conductor, the ambient temperature and the maximum allowable increase in temperature of the insulation. The trick is selecting the correct overcurrent protection for a. Underground cable ampacity is difficult to estimate because. The nec standard does not provide cable ampacity derating due to bottom cover or correction of the cable ampacity multiplying factors due to the cumulative effects of combinations of. Mtw conductor ampacity based on cooper conductors with 60c and 75c as specified by nfpa79. Cable design form to scale input of cable designs is facilitated by a cable expert system. Creating underground duct banks and inair installations. The validation of the results obtained with the cymcap software provides increased confidence when upgrading existing power cable installations. Conductors soft annealed stranded tinned copper per astm b 33. Etap electrical engineering software offers a comprehensive set of cable current carrying capacity ampacity and sizing modules based on the following standards and guidelines. Calculate ampacity and temperature rise of power cable installations the cymcap software is dedicated to performing ampacity and temperature rise calculations for power cable installations.
Please call for pricing on long barrel lugs stage lighting cable is a single conductor power cord cable used in the theater industry for superior lighting. The cable ampacity analysis software applies to cables in above ground trays, conduits, and air drop. The type of cable insulation nominal and maximum operating voltage. Ampacities are based on a conductor temperature of 90 c and an ambient air temperature of 40 c. Weight price mtw18bk black 18 awg type mtw copper wire, 16 strands, 600 volts 500 4. Type w portable power cable is suitable for use in industrial and lighttomedium mining applications, heavyduty service, temporary power supply cables, motor, battery and. Enter the information below to calculate the maximum allowable ampacity for currentcarrying conductors. Ati distributes type sc cam lock extensions manufactured by power assemblies.
Power used cyme internationals cable ampacity program cap to model. Other types of single conductor power cables are welding cable, dlo cable and type w cable. Engineers are often called upon to calculate ampacity and temperature rise of. Lead wire reference chart poster electrical cable supply. Cyme power engineering software and solutions power cable. Therefore, complete analysis of the power systems includes detailed analyses of the cable network, especially assessment of the cable ampacities. Maximum operating conductor temperature for our xlp cross linked polyethylene insulation is not to exceed 90c in wet and dry locations. Practical power cable ampacity analysis velimir lackovic, mscee, p. Therefore, complete analysis of the power systems includes detailed analyses of the cable network, especially assessment of the. Generic wire and cables type sc cable entertainment and stage lighting, type sc stage thermoset rubber cord products have evolved over the last 50 years from simple and unsophisticate. As a cable ampacity analysis application, etap engineering software determines the cable current capability based on ieee, iec, icea, nec nfpa, bs, and. Customizable imprint all cable sizes and custom surface print options are also available. Entertainment cable, stage lighting cables, type sc single.
The software examines cable temperature and ampacity in performing analysis of existing systems. Ampacities are based on an ambient temperature of 40 c and a conductor temperature of 90 c taken from. This version of internet explorer is either no longer supported by microsoft, or is obsolete and some features of our store may no longer be supported. The above data is approximate and subject to normal manufacturing tolerances. Allowable ampacity shown above is per the 2005 national electrical code. Type sc cable is abrasion and heat resistant, and the cam lock connectors are nema 3r when connected. Overview of rules implemented in powertools, including nec and recommended industry standard practices. Crosslinked polyethylene commercial southwire southwires commercial team focus on store, hotel, office, casino, ar. Overcurrent devices protect conductors and equipment from overcurrent. Nfpa 70 standard cable ampacity software cable sizing. Southwire recognized on top employer list for 2020. Ampacity and other design considerations for medium.
Cable ampacity tables for direct current traction power. At present, numerous high voltage xlpe cable systems with nominal voltages up to 500 kv and. Cymcap provides the option of performing cable ampacity calculations using dc current zero frequency. Cablesizer cable sizing calculations to iec and nec. A polyester tape separator is used over the conductor. Use of and creating library models for physical cables and ducts. Practical power cable ampacity analysis ced engineering. Products southwire is one of the worlds leading manufacturers of wire and cable, tools, components and assembled solutions. Cable ampacity software cable sizing software cable derating. The accuracy of the calculation provides increased confidence in the design, upgrading, and analysis projects. When multiple cable lines are arranged close together, it is. The calculation determines the proper cable sizes to carry specified loads in designing new systems and upgrading power cable installations. There is a 25 foot minimum length required for all by the foot cable purchases. Nec rules on overcurrent protection for equipment and.
Welding cable or dlo used as feeder circuit in conduit. Iec 60502 cable capacity calculations for power cables per iec 60502. Southwire, an industry leader in wire and cable solutions, and go industries, dba longhorn reels, a texasbased company that manufactures wire and cable solutions, have resolved pending litigation. Programs utilize values of cable constituent thermal. These cables are designed for offshore and onshore environments, and most commonly used in drilling rig applications. Determining the maximum current power cables can sustain without deterioration of any of their electrical properties is important for the design of electrical installations.
Amps nec table 4005 b for 90c outdoor csa type ppc 105c 600 volt ft5 rohs made in usa applications. Rating c neoprene 30 90 hypalon 30 105 epdm 60 150. Conductorcable terms, conductorcable insulation materials terms, conductorcable tests terms, conductorcable manufacturing process terms. Introduction cable network usually forms a backbone of the power system. Type p power cables gexol marine cable houston wire. It has nothing to do with the flexibility, ive seen a lot of people make this mistake and quote skin effect, which is nonsense at 60hz. Conductor ampacity calculation part one electrical knowhow. The user inputs basic parameters cable type, insulation type, voltage rating and conductor area. The values amperes shown are maximums at an ambient or room temperature of 30c 86f. Other organizations that supply ampacity tables include ieee institute of electrical and electronics engineers, which offers more than 3,000 ampacity tables for extruded dielectric power cables rated through 8 kv and laminar dielectric power cables rated through 500 kv. This is a 20 awg entertainment cable used in theatre, television, night clubs, motion pictures, mobile communication vans, spotlights and sound systems. Cable ampacity power system software and arc flash. Type cable magnetic field calculation program to model the.
For example, a 10 awg 4c 600 v cables ampacity would need to be derated by 80 percent according to nec 2014 table 310. This software was developed jointly by ontario hydro hydro one, mcmaster university and cyme international, under the auspices of the canadian electricity association. Type w portable power cable is suitable for use in industrial and lighttomedium mining applications, heavyduty service, temporary power supply cables, motor, battery and generator leads. Cable ampacity software cable sizing software cable. The nec standard does not provide cable ampacity derating due to bottom cover or correction of the cable ampacity multiplying factors due to the cumulative effects of combinations of tray covers and fireproofing. They consider only temperature limited, current carrying capacity of cables.
This authoritative collaboration by iee and mcgrawhill, provides the standard computations and information needed to calculate electric cable ratings. Each type has different awg sizes, voltages and temperature ranges to fit each type of installation. The wire ampacity calculator will quickly calculate the maximum allowable current through a conductor based on wire size awg or kcmil, wire insulation, conductor type and installation method. Use of computer programs for calculation of underground cable ampacity software programs usually use neher mcgrath method for the calculation of the cable ampacity. Gencable type sc stage cable is designed for portable power and lighting applications in the entertainment industry including motion picture, television, theaters, stages and similar locations please note. Providing you the information and recommendations for southwire products.
This is a 4 awg entertainment cable used in theatre, television, night clubs, motion pictures, mobile communication vans, spotlights and sound systems. This can be due to an overload, short circuit, or ground fault art. Gencable type sc stage cable is designed for portable power and lighting applications in the entertainment industry including motion picture, television, theaters, stages and similar locations. Type mtw wire part number color gauge description spoolreel length approx. High voltage xlpe cable systems technical user guide. Other types of single conductor power cables are welding cable, dlo cable and type w.