Electrical Design

Thursday, November 19, 2009

INDIAN STANDARDS

LIST OF APPLICABLE ELECTRICAL STANDARDS
The relevant applicable standards Indian as well the international are listed below. In case the bidder offers the product of international make then the product shall confirm to the corresponding international standards viz. IEEE/IEC/NEMA etc. Or alternatively the product offered should confirm to Indian Standard.
A. INDIAN STANDARDS
1. General Requirements :
IS – 732 - Code of practice for electrical wiring installations ( System voltage not extending 650 volts )
IS – 900 - Code of practice for installation and maintenance of Induction Motors
IS – 1271- Classification of insulting materials for electrical machinery and apparatus in relation to their thermal stability in service
IS – 1646 - Code of practice for fire safety of buildings (general) Electrical Installations
IS – 1866 - Code of practice for maintenance of insulating oil.
IS – 1882 - Code of practice for outdoor installation of public address systems.
IS – 1886- Code of practice for installation and maintenance of Transformers
IS – 1913- General and safety requirements of electric lighting fittings
IS – 2032- Graphical symbols used in electric technology.
IS – 2165- Guide for insulation coordination
IS – 2274- Code of practice for electrical wiring installations (System voltage exceeding 658 volts)
IS – 2309- Code of practice for the protection of buildings and Allied structures against lightning.
IS – 3034 - Code of practice for fire safety of industrial buildings – Electrical generating and distributing stations.
IS – 3043 - Code of practice for earthing
IS-3072 - Part -1 Code of practice for installation and maintenance of switchgear (System voltage not exceeding 1000 volts)
IS – 3106 - Code of practice for selection, installation and maintenance of fuses (voltage not exceeding 650 volts)
IS – 3638 - Application guide for gas-operated relays.
IS – 3646 - Code of practice for interior illumination.
IS – 3716 - Application guide for insulation coordination – Equipment located in hazardous situations.
IS – 3842 - Application guide for electrical relays for AC system.
IS – 4004 - Application guide for non-linear resisted type lightning arrestors for AC system
IS – 4146 - Application guide for voltage transformers.
IS – 4201- Application guide for current transformers.
IS – 5571- Guide for selection of electrical equipment in hazardous area.
IS – 5572 - Classification of hazardous areas for electrical installations.
IS – 5780 - Intrinsically safe electrical apparatus and circuits.
IS – 5908- Method of measurement of electrical installations in buildings.


A. EQUIPMENT
1. Switchgear
(a) General :
IS – 375 - Marking and arrangement for switchgear bus-bars, main connections and auxiliary winding.
IS – 694 - Part 1 PVC insulated cables ( for voltages up to 100v) with copper conductors.
IS – 1248 - Direct acting electrical indicating instruments.
IS – 2147 - Degrees of protection provided for enclosures for low voltage switchgear and control gear.
IS – 2208 - HRC cartridge fuse links up to 650 V.
IS – 2705 - Part I, II & III – Current transformers.
IS – 3156 - Part I, II & III – Voltage transformers.
IS – 3202- Code of practice for climate proofing of electrical equipment.
IS – 3231 - Electrical relays of power system protection.
IS – 4047- Heavy duty air break switches and composite units of air-break switches and fuses for voltages not exceeding 1000 volts.
IS – 4237 - General requirements for switchgear and control gear for voltages not exceeding 1000V.
IS – 5987 - Code of practice for selection of switches (voltage not exceeding 1000V)

(b) 6.6 KV
IS – 335 - Insulating oil for transformers and switchgear.
IS – 2516 –Part 1 - Sec.2 Alternating current circuit breakers – Requirements and tests for voltage ranges 1000 to 11000 volts.
IS – 3427 - Metal enclosed switchgear and controlgear for voltages above 1000 V but not exceeding 11000 V.

(c) 415 Volts :
IS – 722 - AC electricity meters.
IS – 1951- PVC sleeving for electrical purposes.
IS – 2516 - Part 1- sec.1
Part II/Sec.2- AC circuit breakers – requirements and tests for voltages not exceeding 1000 V.
IS – 2419 - Dimensions of electrical indicating instruments.
BS – 4752 - Circuit breakers of rated voltage up to and including 1000 volts and 1200 volts dc.
BS – 6231 - PVC insulated cables for switchgear wiring.
IEC – 157 - Low voltage distribution switchgear circuit breakers.

(d) M.C.C. :
IS – 1554 -Part I PVC insulated (heavy duty) electric cables for working voltages up to and including 1100 volts.
IS – 1822 - AC motor starters of voltage not exceeding 1000 volts.
IS – 2959 - AC contactors of voltage not exceeding 1000 V.
IS – 3961-Part II Recommended current ratings for PVC insulated and PVC sheathed cables.
IS – 5124 - Code of practice for installation and maintenance of AC induction motor starters (voltage not exceeding 1000V).
IS – 2959 - AC contactors of voltage not exceeding 1000 V.

(e) Invertors :
IS – 391 - Mains transformers for electronic equipment.

2. Transformers :
IS – 335 - Insulating oil for transformers and switchgear.
IS – 2026 - Power transformers.
IS – 2099 - High voltage porcelain bushings.
IS – 3070 - Lightning arrestors for AC systems.
IS – 3637 - Gas operated relays.
IS – 3639 - Fittings and accessories for power transformers

3. Motors :
IS – 325 - Three phase induction motors.
IS – 4691- Degrees of protection provided by enclosures for rotating electrical machinery.
IS – 4722 - Rotating electrical machines

4. Batteries :
IS – 1652 - Stationery cells and batteries, lead-acid type (with plants positive plates).
BS – 440 - Stationery batteries

5. Cables :
IS – 1554 -Part I & II PVC insulated (heavy duty) electric cables for working voltages up to and including 1100 volts and for upto 33 KV.
IS – 1753 - Aluminium conductors for insulated cables.
IS – 3961 - Part II – Recommended current ratings for cables.
IS – 3975 - Mild steel wires, strips and tapes for armouring cables.
IS – 5819 - Recommended short-circuit ratings of high voltage cables.
IS – 5831 - PVC insulation and sheaths of electric cables

6. Altornators :
IS – 7132 - 1973 Guide for testing synchronous machines
IS – 5422 - 1996 Turbine type generators
IS – 7306 - 1974 Methods for determining synchronous machine quantities from tests.
IEC 60028 Ed. - 2.0 b: 1925 International standard of resistance for copper
IEC 60034-1 Ed.11.0 b:2004 Rotating electrical machines – Part 1 : Rating and performance
IEC 60034-11 Ed.2.0 b: 2004 Rotating electrical machines – Part 11 : Thermal protection.
IEC 60034-12 - Ed.2.0 b: 2002 Rotating electrical machines – Part 12 : Starting performance of single-speed three-phase cage induction motors.
IEC 60034-14 -Ed.3.0 b:2003 “Rotating electrical machines – Part 14 : Mechanical vibration of certain machines with shaft heights 56 mm Higher – Measurement, evaluation and limits of vibration severity.
IEC 60034-15 - Ed.2.0 b : 1995 Rotating electrical machines – Part 15 : Impulse voltage withstand levels of rotating a.c.machines with form-wound stator coils.
IEC 60034-16-1 - Ed.1.0 b:1991 Rotating electrical machines – Part 16 : Excitation systems for synchronous machines – Chapter 1 : Definitions.
IEC 60034-18-1 Ed.1.0 b : 1992 Rotation electrical machines – Part 18 : Functional evaluation of insulation systems – Section 1 : General guidelines & Section 21 : Test procedures.
IEC 60034-18-31 Ed 1.0 b : 1992 Rotating electrical machines – Part 18 : Functional evaluation of insulation systems – Section 31 : Test procedures for form-wound windings – Thermal evaluation and classification of insulation systems used in machines up to and including 50 MVA and 15 kV
IEC 60034-2 Ed.3.0 b : 1972 Rotating electrical machines Part 2 : Methods for determining l losses and efficiency of rotating electrical machinery from tests (excluding machines for traction vehicles)
IEC 60034-2A Ed. 1.0 b : 1974 Rotating electrical machines – Part 2 : Methods for determining Losses and efficiency of rotating electrical machinery form tests (excluding machines for traction vehicles) – First supplement : Measurement of losses by the calorimetric method.
IEC 60034-3 Ed. 5.0 b : 2005 Rotating electrical machines – Part 3 : Specific requirements for cylindrical rotor synchronous machines
IEC 60034-4 Ed.2.0 b : 1985 Rotating electrical machines – Part 4 : Methods for determining synchronous machine quantities from tests.
IEC 60034-5 Ed 4.0 b : 2000 Rotating electrical machines – Part 5 : Degrees of protection provided by the integral design of rotating electrical machines (IP code) – Classification.
IEC 60034-6 Ed.2.0 b : 1991 Rotating electrical machines – Part 6 : Methods of cooling (IC code).
IEC 60076-1 Ed.2.1 b : 2000 Power transformers – Part 1 : General
IEC 60076-11 Ed.1.0 b : 2004 Power transformers – Part 11 : Dry-type transformers
IEC 60076-2 Ed.2.0 b: 1993 Power transformers – Part 2 : Temperature rise
IEC 60076-8 Ed.1.0 b:1997 Power transformers – Part 8 : Application guide
IEC 60079-0 Ed.4.0 b:2004 Electrical apparatus for explosive gas atmospheres – Part 0 : General requirements
IEC 60079-10 Ed.4.0 b:2004 Electrical apparatus for explosive gas atmospheres – Part 10 : Classification of hazardous areas
IEC 60086-1 Ed.9.0 en:2000 Primary batteries – Part 1: General
IEC GUIDE III Selection of Rotating Machinery
IEC/TS 60034-16 Power Transformer – General, Selection, Testing etc.
IEC- 62026 Low Voltage Switchgear
IEC-62040 Uninterrupted Power Supplies
IEC-60502 Power Cables Upto 30 Kv-General Requirement, Selection
IEC-60287 Power Cables – Testing
IEC-60255 Requirements For Protective Relays

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