F. No. JERC -15/2010 . In exercise of the powers conferred on it by Section 181 (1) and 181 (2) read with Section14 of the Electricity Act 2

1 · 1 SHORT TITLES, COMMENCEMENT, EXTENT AND INTERPRETATION:

1 · 2 DEFINITIONS

400 · volts between any two phases under normal conditions subject to the

1 · 3 ABBREVIATIONS:

1 · 4 INTRODUCTION:

1 · 5 OBJECTIVES:

1 · 6 APPLICABILITY:

1 · 7 IMPLEMENTATION:

1 · 8 CONFIDENTIALITY

1 · 9 COMPLIANCE:

1 · 10 PROCEDURES TO SETTLE DISPUTES:

2 · 1 OBJECTIVE:

2 · 2 DISTRIBUTION CODE REVIEW PANEL:

2 · 3 FUNCTIONS OF THE REVIEW PANEL:

2 · 4 REVIEW AND REVISIONS:

3 · 1 OBJECTIVES

3 · 2 PLANNING POLICY

3 · 3 LOAD DATA

1 · The Distribution Licensee shall develop load curves for the area fed by the concerned substation of the Transmission Licensee from the metering data available at the Connection Point/ Interface Point. Such data shall be compiled for the entire Area of Supply combining the load curves of each substation feeding its Distribution System. The Distribution Licensees shall collect data and map the power factor of network (feeder wise as well as consumer category wise by installing meters on typical distribution transformers.)

2 · The actual energy drawn by the Distribution System as recorded in the energy meters installed at Connection Points / Interface Points shall be reconciled with the actual energy sales in overall Area of Supply. The aggregate distribution losses computed from these data shall be furnished to the Commission every quarter.

3 · All the Users with Demands of 1 MW and above seeking connection shall furnish their load data/characteristic of the load and other relevant details to the Distribution Licensee as detailed in Annexure 1.

3 · 4 FORECAST METHODOLOGY

1 · The Distribution Licensee shall formulate a short-term demand forecast (to enable the State Transmission Utility (STU) or SLDC in drawing down the annual planning process corresponding to a 5 years forward annual plan for intra state transmission system). This shall be formulated after considering the previous financial year as base and projecting the demand for the succeeding 5 years, considering the overall development of various sectors in his Area of Supply in succeeding five years. He should follow prudent practices to arrive at load forecast for succeeding five years after considering all the aspects viz. government policy/ economic development etc. During this process he shall also review the status of loads materializing as per the previous load forecast. Further these forecasts shall be in line with the plan to be developed at national level by CEA. The variation to the forecast shall be incorporated by the Distribution Licensee, as and when it is known to Distribution Licensee and revise the forecast annually.

2 · Energy sales in each tariff class shall be projected in the forecast period over the corresponding figures relating to the base year by adopting an appropriate statistical method.

3 · The projections shall take into account the assumed normal growth for non-specific loads, specific and identified loads of 1 MW and above, and the effects of demand side management, if any, and energy conservation.

4 · The peak load requirements at each Connection Point/ Interface Point shall be estimated. The peak load requirement at each Connection Point / Interface Point will essentially ensure that the Transmission Utility or SLDC may determine the corrective measures to be taken to maintain the capacity adequacy in the Transmission System up to the Connection Point /Interface Point. This will facilitate the Transmission Utility (STU) to develop the compatible Transmission System. However, if the Distribution Licensee receive power at a number of Connection Points / Interface Points in a compact area, which are interconnected in a ring, then such Distribution Licensee shall forward the overall short term Demand forecast at each Connection Point / Interface Point with the variation or tolerance as mutually discussed and agreed upon with the Transmission Utility.

5 · The aggregate energy and peak load requirements for the Area of Supply shall be estimated. The Distribution Licensee shall forward the short term demand forecast or each Connection Point/ Interface Point for peak load requirement as well as aggregate energy and peak load demand for Area of Supply on annual basis to the Transmission Utility (STU) and Commission along with the following details on the basis of which the forecast is made:

6 · It shall be the responsibility of all the Distribution Licensees to fully co-operate with the Transmission Licensees in preparation of demand forecasts for their area of supply. The Distribution Licensee shall furnish the necessary peak load and energy forecasts to Transmission Utility (STU) for a period succeeding 5 years and submit the same annually by 31 st March to STU in order to enable Transmission Utility or SLDC in formulating the perspective plan, as detailed out in JERC (State Grid Code) Regulations, 2010.

7 · The licensee shall supply whole system data to the transmission Utility (STU) and other distribution system participants on the formats as devised by the STU under the JERC (State Grid Code) Regulations, 2010.

3 · 5 TECHNICAL AND DESIGN CRITERIA:

1 · The load demand of all the existing Users connected to the Distribution Licensee's system and all Users seeking connection with the Distribution Licensee's system shall be taken into consideration. All the Apparatus and Circuits shall have adequate capacity to cater to their needs of electricity in a safe, economical and reliable manner.

2 · The Distribution Licensee shall assess and forecast the load demand of each category of Consumers in his Area of Supply on annual basis or more frequently as decided by the Commission.

3 · The Distribution Licensee shall have a thorough knowledge of the nature of electricity usage by the Consumers and the way they use electrical energy and other alternative sources of energy in his area. The load forecasting shall take into account all these along with other conservation programs and the demand side management or off-peak usage programs which the Licensee may sponsor, resulting in reduction of energy used and peak demand of the Consumers over the years.

4 · The Distribution Licensee shall implement an appropriate load fore cast program for the systematic collection of data describing Consumers' energy usage patterns and analysis of these data for energy and demand forecast. For this purpose, the Consumers shall be divided into all the tariff classes and may be broadly in the following classes:

5 · The load fore cast program shall assess the following:

6 · Based on the results of the above analysis the load forecast shall be made using the appropriate modern forecasting tools wherever applicable.

7 · The optimum Circuit loading and the maximum number of Circuits at any electrical interface between the Distribution and Transmission Systems shall conform to the Distribution System Planning and Security Standard as mentioned under Attachment –1 of this code, Distribution System under Power System Management and Operating Standard and Distribution System under Power System Safety Standard as prescribed by authority under Electricity Act 2003.

8 · As far as practicable, separate Circuits shall be provided for the following:

9 · The loads shall be arranged as far as possible in discrete load blocks to facilitate load management during emergency operations.

10 · Load flow and other system studies shall be conducted to locate the position of outlets from substations, capacitor installations, distribution transformers, and to contain voltage variation and energy losses within reasonable limits.

11 · The following parameters of equipments and system designs shall be standardized to facilitate easy replacement and reduction of inventories of spares in stores:

12 · The planning of the Distribution System shall always keep in view the cost effectiveness and reduction in energy losses without sacrificing the requirements of Security Standards and Safety Standards for the Distribution System.

13 · The Distribution Licensee shall plan the Distribution System expansion and reinforcement keeping the following in view along with all other measures to accommodate the advancement in technology prevailing at the time:

3 · 6 ENERGY AUDIT

4 · 1 OBJECTIVES

4 · 2 OPERATIONAL LABELING

4 · 3 SYSTEM PERFORMANCE:

4 · 4 CONNECTION POINT/ INTERFACE POINT:

4 · 5 PROCEDURE FOR APPLICATIONS FOR CONNECTIONS TO THE SYSTEM:

4 · 6 ACCEPTANCE OR REJECTION OF APPLICATION FOR CONNECTION:

4 · 7 CONNECTION AGREEMENTS:

5 · 1 OBJECTIVES:

5 · 2 DEMAND ESTIMATION:

5 · 3 OUTAGE PLANNING:

5 · 4 CONTINGENCY PLANNING:

5 · 5 DEMAND MANAGEMENT AND LOAD SHEDDING:

5 · 6 INTERFACES WITH SMALL GENERATING UNITS INCLUDING CPPS

5 · 7 COMMUNICATION:

5 · 8 MONITORING AND CONTROL OF VOLTAGE, FREQUENCY AND POWER FACTOR:

5 · 9 SAFETY CO-ORDINATION

5 · 10 MAINTENANCE AND TESTING

5 · 11 TOOLS AND SPARES

5 · 12 TRAINING

6 · 1 OBJECTIVES:

6 · 2 OPERATIONAL METERING:

6 · 3 TARIFF AND COMMERCIAL METERING:

6 · 4 MEASUREMENT OF ENERGY IMPORT/ EXPORT:

6 · 5 PROTECTION SYSTEM:

6 · 6 FIRE PROTECTION:

7 · 1 OBJECTIVE:

7 · 2 CONTROL PERSONS AND THEIR RESPONSIBILITY:

7 · 3 PROCEDURE:

7 · 4 SPECIAL CONSIDERATIONS:

8 · 1 OBJECTIVE

8 · 2 MAJOR INCIDENT OR ACCIDENT REPORTING:

8 · 3 REPORTING PROCEDURE

1 · OBJECTIVE

1 · The Distribution System Planning and Security Standard specifies the guidelines for planning methodology of the Distribution System. The scope of this standard covers:

2 · QUALITY OF POWER SUPPLY

3 · LOAD FORECAST:

1 · The Distribution Licensee shall prepare a rolling short - term load forecast annually for a period of five years in his Area of Supply duly estimating the probable load growth and the consumption pattern of the Consumers. The forecast thus made shall be updated every year depending on the actual load that has come in that year and the changes in assumption, if any, required for the next years.

2 · Preliminary Load Estimation/Assessment:

3 · Non-industrial Bulk Supply: The available data regarding the consumption of bulk supply to non-industrial Consumers such as research establishments, port trusts, military engineering services, supply to power projects etc., and the probable future developments in these areas, shall be considered for the forecast.

4 · LOAD FORECAST PROCEDURE

5 · PLANNING PROCEDURE

6 · PLANNING STANDARDS

6 · 1 Standardization of Sizes and Ratings: Adequate provision for future load development shall be made while selecting the sizes of power conductors and rating of distribution transformers. The sizes of power conductors, insulators, lightning arresters, transformers, switchgear, etc. used in the Distribution System shall be standardized with the objective of reducing inventory and standard specifications shall be prepared.

6 · 2 Standardisation of Design and Rating of Distribution Transformers

6 · 3 Standardisation of Sub-Station Layouts

6 · 4 Reactive Compensation

1 · Shunt capacitors un-switched/switched type, shall be installed at the appropriate places in the Distribution System for power factor improvement, maintaining satisfactory voltage profile and reduction of sub-transmission and Distribution losses. The size and location of the capacitor installations shall be determined using an appropriate program, with reliable field data. Suitable precautionary measures, such as automatic switching etc., shall be adopted to avoid over voltages at light load periods.

2 · Optimization studies of shunt compensation shall be conducted by the Distribution Licensee to determine the most appropriate sizes and locations for shunt capacitor installations.

6 · 5 Service Area of a Distribution Network

6 · 6 Service Mains

6 · 7 Metering Cubicles

7 · RELIABILITY ANALYSIS

8 · STANDING COMMITTEE FOR DESIGN, CONSTRUCTION AND MAINTENANCE PRACTICES.-

9 · SECURITY STANDARDS

10 · CONSTRUCTION PRACTICES .-

11 · PREVENTIVE MAINTENANCE SCHEDULE AND INSPECTION MANUAL . -

12 · MAINTENANCE RECORDS .-

13 · ENERGY CONSERVATION .-

3 · In the agriculture sector the licensee shall promote the pump sets and the water delivery system engineered for high efficiency. In the industrial sector, the licensee shall take action for promoting energy efficient technologies as energy conservation measures. Motors and drive system are the major source of high consumption in agricultural and industrial sector. The licensee shall encourage that the consumers use high efficiency motors in agricultural and industrial sector. The licensee shall take effective steps so that energy efficient lighting technologies are adopted in industries, commercial and domestic establishments.

6 · Details of victim(s)

7 · In case the victim(s) is /are employee(s):

8 · In case the victim(s) is/are employee(s) of a licensed contractor