Securing your electrical installations Prisma,

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1 Securing your electrical installations Prisma, an optimised solution for type tested low voltage switchboards up to 3200 A

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3 Table of contents Developing installation safety 4 Prisma P * Electrical switchboards up to 3200 A 5 A complete safety of type tests 6 Several configurations 8 Schneider products inside Prisma P 10 General technical Connection by cables Sizing of protective conductor PE 11 Prisma G * Electrical switchboards up to 630 A 12 General technical information: * Degree of protection IP code 14

4 Developing installation safety in commercial & industrial buildings With the Prisma P & G, Schneider Electric proposes highperformance technical solutions, with enhanced robusteness, looks and aesthetics to produce low voltage electrical switchboards up to 3200 A, in commercial and industrial buildings. Prisma P & G switchboards capitalize on the experience gained over 30 years, during which thousands of switchboards have been built and operated. Prisma P up to 3200 A Prisma G up to 630 A 4

5 Prisma P up to 3200 A From the simplest through to the highly sophisticated, these simple yet dependable solutions are tailored to meet customers needs. The modular building blocks are designed with a strict eye on details to ensure a professional result. Electrical switchboards... For a dependable electrical installation Total compatibility between Schneider Electric switchgear devices and the Prisma system helps build dependability into every electrical installation, that has been validated by type tests in compliance with standard IEC An electrical installation capable of evolving Modular in structure, Prisma can keep pace with evolving switchboard needs and integrate new functional units as required. Maintenance operations are fast and easy with total access to all switchgear devices. Total safety for users Switchgear devices are installed behind a protective front plate that leaves only the operating handle visible. General characteristics material: sheet steel, anti-corrosion surface treatment: anti-corrosion coating, thermal polymerised polyester-epoxy powder. Colour Prisma beige / dark busbar insulating supports: all plastic parts withstand fire or excessive heat caused by internal electrical phenomena, as per IEC : s/30s for supports for live metal parts. Building up installations Functional Prisma components can be used to build switchgear assemblies in compliance with: standards IEC with the following electrical specifications: ; rated insulation voltage for the main busbars: 1000 V ; rated current 3200 A ; peak withstand current: Ipk 187 kâ ; short time withstand current: Icw 85 ka rms / 1sec ; frequency 50 / 60 Hz. Prisma P functional system With the Prisma P cubicles, the same components, whether for switchgear installation, current distribution, cable running, etc., may be installed depending on the installation site, with the following IP 31, IP Form 1 & may be may be joined side by 4 basic widths: 700, 900, 1100, basic depths: 400, 600 mm and 2 back to back depths: 800, 1000 frame height: 2000 mm 5

6 A complete safety of type tests A dual guarantee The Prisma switchboard, tested and produced according to standards, offers its operator a dual use of dependable components, with platform tested rigorous final inspection. Schneider Electric offers Prisma switchboard series on which the 7 type tests have been conducted. Schneider Electric s Certified Prisma Partners, who assemble & test the Prisma switchboard, also attest to quality by carrying out the 3 individual routine tests specified in the international standard IEC These 10 tests guarantee the switchboard s operational safety, as well as the safety of people and equipment from switchboard commissioning onwards and throughout switchboard service life. IEC standard defines 7 type tests and 3 individual routine tests which offer the best long term safety and reliability guarantees to electrical installation. 10 tests to certify installation 7 type tests conducted on Prisma P which are: 1- temperature rise limit, 2- dielectric properties, 3- short-circuit withstand, 4- protection circuit efficency, 5- clearances and creepage distance, 6- mechanical operation, 7- degree of Certified Prisma Partners attest to the quality of each switchboard by carrying out the 3 individual routine tests specified in the international standard IEC : 1- cabling and electrical operation, 2- dielectric testing, 3- protection measures. 7 type tests conducted in the laboratory + 3 routine tests carried out by Certified Prisma Partner = a 100 % validated switchboard 6

7 70 80 Choice of Prisma P enclosures Depth = 400 mm cubicles (1) W = 700 mm W = 900 mm (1) or W = 1100 mm W = 1300 mm (1) (1) The cable or bar duct can be installed on the right or left side of the frame in which the devices are mounted. Depth = 600 mm cubicles (1) W = 700 mm W = 900 mm (1) or W = 1100 mm (1) 200 W = 1300 mm (1) The cable or bar duct can be installed on the right or left side of the frame in which the devices are mounted. Depth = 800 / 1000 mm (back to back) cubicles A depth of 800 or 1000 is obtained by installing the basic frames in all existing widths back to back. In the back to back layout, cubicle sides are covered by normal end panels according to the combination. D = 800 mm D = 1000 mm Two basic frames side by side Two basic frames of different depths can be joined directly together. + Two basic frames 7

8 Prisma P several configurations Upper horizontal basbar Breaker with incoming top busduct. Incoming circuit breaker Breaker with incoming top cables. 8

9 Breaker with bottom cable connection. Outgoing functional units Cable compartment Cable tie bars in width 200 & 400 mm. 9

10 Schneider products inside Prisma Prisma P switchboards are leveraged by an unparalleled lineup of products. These products are the building bricks of various solutions for electric distribution, power monitoring, motor control and protection and power factor Power metering & monitoring unit PowerLogic PM Air circuit breaker 630 A 1600 A Masterpact NT Air circuit breaker 800 A 3200 A Masterpact NW correction. Molded case circuit breaker 100 A 630 A New Compact NSX Molded case circuit breaker 100 A 400 A EasyPact We are committed to developing competitive, compatible products that are easy to install & operate. DIN rail products Miniature circuit breakers, residual current devices, earth leakage protection, etc. Domae Our products and systems optimize electrical installations, make them safer and more flexible, while complying with prevailing standards. Thermal magnetic circuit breaker GV2-ME, GV2-P Monitoring relays Zelio Control RM Low voltage capacitor banks Varplus 2 LV power factor controllers Varlogic 10

11 General technical information Connection by cables Practical rules: Schneider Electric recommends cabling according to the circuit breaker rating. The following tables take into account the installation conditions related to the type of device (permissible temperatures near the connection terminals, etc.). They ensure consistency with the temperature derating values of the installed devices. Connection of circuit-breaker by copper cables. Device NS100 NS160 NS250 NS400/NS630 Section (mm 2 ) straps or bars Permissible current with cables secured individually Current (A) IP Cable Section (mm 2 ) Permissible current with cables secured in bundles Current (A) IP Cable Section (mm 2 ) Connection of other devices by copper cables. Permissible current with cables secured individually Current (A) IP Cable Section (mm 2 ) Permissible current with cables secured in bundles Current (A) IP Cable Section (mm 2 ) Sizing of protective conductor PE Optimised method: Use the calculation formula given by standard IEC : S PE = I 2 t S PE : cross-sectional area of PE in mm I 2 : value of the phase-to-earth fault current = 60% of the value of the phase-to-phase fault current (standard IEC t: duration of the fault current in k: a factor depending on the conductor material. k = 143 for a PVCinsulated copper PE conductor. Simplified method (based on the above Use the table Depending on the Isc of the device, determine the cross-sectional area of the PE conductor. Cross-sectional area of the PE conductor (mm) Masterpact NWH3 with a 0.5 sec. time delay Other Schneider Electric device Isc 40 ka 1 bar 25 x 5 1 bar 25 x 5 40 < Isc < 50 ka 1 bar 50 x 5 1 bar 25 x 5 Isc u 50 ka 1 bar 50 x 5 1 bar 50 x 5 11

12 Prisma G up to 630 A Prisma G, the innovation of a complete functional system, is designed for the production of electrical switchboards up to 630 A and intended for harsh environments. Being sealed, sturdy, dismountable and combinable, Prisma G is enriched with new solutions satisfying our customers needs. Standards Prisma G complies with the main international IEC : relating to construction of low voltage switchgear and controlgear IEC 60529: defining the degree of protection provided by IEC : defining resistance to salt IEC : defining resistance to damp IEC : defining a type tested bus bar provided by the enclosure. Metal frame: folded sheet Paint: epoxy powder polymerized at high Standard color: beige Surface finish: Plastic components: self extinguishing in particular the supports for bare life conductors. Installation & cable Wall Semi-flush wall Directly on Canalis busduct, as a multi-feeder tap-off Indoor Exists in single or double cells Cable entries are from top or bottom. Fixed motor control Power panels: main, tertiary and final Lighting Fuse Busduct Canalis tap-off Control and automation. 3 or 4 MCB & MCCB up to 630A 12

13 A dual guarantee The Prisma G enclosure, produced according to IEC standards, offers its operator a dual use of dependable rigorous final inspection done by Schneider Electric s Certified Prisma Partners. Electrical characteristics rated insulation voltage (V a.c Hz) 1000 rated operational voltage (V a.c.) 690 rated short-time withstand current (ka / 1 sec) up to 25 rated peak withstand current (ka) up to 53 rated current (A) up to 630 Mechanical characteristics partitioning form 1 degree of protection - indoor type IP42 - IP54 Dimensions Width mm single cell configuration 580 double cell configuration 1160 Depth mm without door knobs or logo 230 Height (without plinth) mm 11 modules modules modules modules % of panelbuilders and contractors using Prisma P & G solutions can prove that their switchboards are tested and compliant with IEC standards. 13

14 General technical information Degree of protection IP code Standard IEC lists and codes a large number of external influences to which an electrical installation may be subjected: presence of water, presence of solid bodies, risk of impacts, vibrations, presence of corrosive substances. These influences are exerted with an intensity varying according to installation conditions: the presence of water may be simply a few drops falling or complete immersion. Standard IEC indicates the degrees of protection provided by an enclosure for electrical devices against access to hazardous parts, against penetration of solid foreign objects and against penetration of water. These standards do not apply for the protection against the risks of explosion or conditions such a humidity, corrosive vapour, fungus or vermin. The IP code is made up of two digits and can include an additional letter when the actual protection against access to the hazardous parts is better than that indicated by the first digit. The first digit characterises the protection provided by the enclosure against the ingress of solid foreign objects. The second digit characterises the protection provided against the ingress of water with harmful effects. 1st digit Protection against ingress of solid objects 1 Protected against solid foreign objects larger than 50 mm Ø 50 mm 2nd digit Protection against ingress of water 1 Protected against vertically falling water drops (condensation) 2 Protected against solid foreign objects larger than 12.5 mm Ø 12,5 mm 2 Protected against vertically falling water drops when enclosure tilted up to Protected against solid foreign objects larger than 2.5 mm Ø 2,5 mm 3 Protected against spraying water up to 60 from vertical 60 4 Protected against solid foreign objects larger than 1 mm Ø 1 mm 4 Protected against splashing water from all directions 5 Protected against dust (dust protected) 5 Protected against water jets from all directions 6 Dust tight 6 Protected against powerful water jets from all directions 7 Protected against the effects of temporary immersion in water 8 Protected against the effects of continuous immersion in water 14

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16 Schneider Electric Egypt & NE Africa Head Office Land Plot no. 291 & 292, Second District, Fifth Settlement, New Cairo, Egypt Postal code Tel : Fax: Customer Care Center (CCC) Hotline: customer.care@eg.schneider-electric.com Design & production: Communication - SEE Printing: Horizon Graphic As standard specifications and designs change from time to time, please ask for confirmation of the information given in this publication. SEE / E