GSC002 Rev /04/2016

Transcription

1 GLOBAL STANDARD Page 1 of 40 WITH RATED VOLTAGE Uo / U (Um) 0,6/1,0 (1,2) kv Elaborated by Verified by Approved by Solution Development Center L. Foddai R. Emma I. Gentilini Global I&N NT/NCS N. Cammalleri N. Cammalleri G. Egea Brufau F. Giammanco This document is intellectual property of Enel Spa; reproduction or distribution of its contents in any way or by any means whatsoever is subject to the prior approval of the above mentioned company which will safeguard its rights under the civil and penal codes. This document is for Internal Use. Revision Data List of modifications 00 30/01/2014 First emission 01 30/11/2014 Second emission 02 19/02/2015 Third emission 03 03/12/2015 Updated Common List

2 GLOBAL STANDARD Page 2 of 40 INDEX Contenido 1 SCOPE LIST OF COMPONENTS COMMON LIST REFERENCE LAWS AND STANDARDS LAWS INTERNATIONAL STANDARDS LOCAL STANDARDS REPLACED LOCAL STANDARDS TECHNICAL REQUIREMENTS DESIGN AND MANUFACTURE Conductor Insulation Outer Sheath Constructive aspects Current carrying capacity of cables Marking and designation of the cable Characteristics Cable designation Designation example cable TEST Definitions Routine test... 12

3 GLOBAL STANDARD Page 3 of Sample Test Type Test (1/3) Type Test (2/3) Type Test (3/3) EQUIVALENTS STANDARDS: QUALITY REQUIREMENTS ACCEPTANCE TEST SAMPLING Acceptable and rejectable quality level GUARANTEE CONDITIONS OF SUPPLY LOCAL SECTION A B C LATAM: Ampla (Brazil), Chilectra (Chile), Codensa (Colombia), Coelce (Brazil), Edelnor (Perú), Edesur (Argentine) ENDESA DISTRIBUCIÓN ELÉCTRICA (Spain) ENEL DISTRIBUZIONE (Italy), ENEL DISTRIBUTIE: Banat, Dobrogea, Muntenia (Romania) COMMON LIST OF MAIN REQUIREMENTS

4 GLOBAL STANDARD Page 4 of 40 1 SCOPE The aim of this document is to provide technical requirements for the supply of single underground conductor of insulated cables to be used in the distribution networks in Enel Group Distribution Companies, listed below: Ampla (AM) Brazil Chilectra (CH) Chile Codensa (CD) Colombia Coelce (CE) Brazil Edelnor (EN) Perú Edesur (ES) Argentine Endesa Distribución Eléctrica (EE) Spain Enel Distributie Banat (ER) Romania Enel Distributie Dobrogea (ER) Romania Enel Distributie Muntenia (ER) Romania Enel Distribuzione (ED) Italy LATAM EUROPE This document specifies the features and tests that must be accomplished by the aluminium and copper cables of insulated Cross-Linked Polyethylene (XLPE) or polyvinyl chloride (PVC) with rated voltage U/Uo(Umax) 0.6/1 (1,2) kv to be used in low voltage distribution networks of Enel Group Distribution Companies. Specific characteristics are detailed in Local Section This standard replaces all the local standards used up to now by all the Distribution Companies. 2 LIST OF COMPONENTS COMMON LIST The list of components with the main requirements, which is an integral part of the present document, is reported in Low Voltage insulated cables (Common List) attached. 3 REFERENCE LAWS AND STANDARDS 3.1 LAWS See Local Section. 3.2 INTERNATIONAL STANDARDS IEC 60228: Conductors of insulated cables.

5 GLOBAL STANDARD Page 5 of 40 IEC : Power cables with extruded insulation and their accessories for rated voltages from 1 kv up to 30 kv Part 1: cables for rated voltages of 1 kv and 3 kv. IEC 60410: Sampling plans and procedures for inspection by attributes. IEC 60811: Common test methods for insulating and sheathing materials of electric cables HD 603-1: Distribution cables of rated voltage 0,6/1 kv. Part 1: General requirements. European harmonization document. UL 44: Thermoset insulated wires and cables. Under writers Laboratories. UL 83 Thermoplastic-Insulated Wires and Cables. Under writers Laboratories. 3.3 LOCAL STANDARDS See Local Section. 3.4 REPLACED LOCAL STANDARDS See Local Section. 4 TECHNICAL REQUIREMENTS The typical layout of single conductors is shown in Figure 1, the parts showed from inside to out are: Conductor, insulator and outer sheath, the features are seen in detail in section 5. OUTER SHEATH INSULATION Figure 1: Layout of single conductor of insulated cables

6 GLOBAL STANDARD Page 6 of 40 Below are indicated the singles conductors made of aluminium and copper, to be used for different crosssections: TYPE LV - I LV - II LV - III LV - IV Table 1: Types of Cables DESCRIPTION Insulated cable with copper, aluminium or aluminium alloy AA-8000 conductor, with crosslinked polyethylene insulation (XLPE) and outer sheath of polyvinyl chloride (PVC). Insulated cable with copper or aluminium conductor, with cross-linked polyethylene insulation (XLPE) and outer sheath of polyolefin (PO). Insulated cable with copper or aluminium conductor, type RHW-2, with integral cross-linked polyethylene insulation (XLPE) Insulated cable with copper, aluminium or aluminium alloy AA-8000 conductor, types THWN- 2, THHN with polyvinyl chloride insulation (PVC) and outer sheath of nylon (Polyamide) 5 DESIGN AND MANUFACTURE 5.1 Conductor The conductor will be stranded compacted 1 circular, class 2, (reference IEC 60228), and manufactured of aluminium (AAC -1350),aluminium alloy (AA-8000) or soft electrolytic copper wires. If required, the distance between welding points in different wires of the conductor shall not be less than: - Up to 36 wires: 15 m - More than 36 wires: 7.5 m - The homologated sections for the cables of conductors of copper and aluminium are indicated in the Table 2 and the Table 3. 1 Except for 10 mm2 cables that will be not compact circular section

7 GLOBAL STANDARD Page 7 of 40 Table 2: Cross-Sections and electrical resistance of copper conductors 1 Nominal crosssectional area (mm2) Minimum number of wires in the conductor Minimum Diameter of conductors (mm) Maximum Maximum resistance of conductor at 20 C (Ω/km) Table 3: Cross-Sections and electrical resistance of aluminium conductors 2 Nominal crosssectional area (mm2) Minimum number of wires in the conductor Diameter of conductors (mm) Minimum Maximum Maximum resistance of conductor at 20 C (Ω/km) Values are for reference for cables type RHW-2 y THHN, the real value must be according UL44 y UL 83 2 Values are for reference for cables type RHW-2 y THHN, the real value must be according UL44 y UL 83.

8 GLOBAL STANDARD Page 8 of 40 Specific characteristics are detailed in Local Section. 5.2 Insulation The insulating material shall be XLPE, but in case of cables THWN-2 and THHN types, the insulation shall be PVC. The insulation must comply with the characteristics required by the Standards listed in Clause 3 of these Global Standard. In all cases, the insulation must allow maximum conductor temperatures of 90 C in normal operation and 250 C in short circuit 5 seconds at least. Exception: The PVC insulation must allow maximum conductor temperatures of 70 C in normal operation and 160 C in short circuit during 5 seconds at least The minimum thickness of insulation measured and accepted at any point of the cable shall not be less than 90% of the nominal value minus 0.1 mm, and the average of all these measures should not be less than the nominal thickness detailed in Table 4. Where: (t min 0,9 t n - 0,1): t min. : minimum insulation thickness in millimetres t n : nominal thickness in millimetres Specific characteristics are detailed in Local Section. Nominal thickness for cables detailed in Table 4. Table 4: Nominal thickness of insulation 1 1 Values are for reference for cables type RHW-2 y THHN, the real value must be according UL44 y UL 83.

9 GLOBAL STANDARD Page 9 of 40 Cross-section (mm2) RHW-2 (mm) XLPE (mm) THHN, THWN-2 (mm) Outer Sheath. The outer sheath material must be appropriate for normal operation at 90 C. Also, it must be resistant to moisture, abrasion, and solar radiation. The outer sheath material of XLPE-insulated cables may be polyvinyl chloride (PVC) type ST2 in accordance with IEC , or Polyolefin (PO) type DMO1 in accordance with HD The outer-sheath material for cables types THWN-2 or THHN shall be Nylon (polyamide), in accordance with UL 83. Type cables RHW-2 shall have NO outer sheath, in accordance with UL 44. The minimum nominal thickness of PO and PVC sheathing shall be as indicated in Table 5. The minimum thickness of the outer sheath measured and accepted at any point of the cable shall not be less than 0.85 % of the nominal value minus 0.1 mm, and the average of all these measures should not be less than the nominal thickness detailed in Table 5 and Table 6. (t min 0,85t n -0,1):

10 GLOBAL STANDARD Page 10 of 40 Where: t min. : minimum thickness, in millimetres t n : nominal thickness, in millimetres. The minimum thickness of Nylon (polyamide) outer sheath shall be as indicated in Table 6. Specific characteristics are detailed in Local Section Table 5: Nominal thickness of PVC and PO outer sheath Table 6: Minimum thickness of Nylon (polymide) outer sheth (poliamida) Cross-section Type PO y PVC Cross-section THHN, THWN 2 (mm2) (mm) (mm2) (mm) Colour See Local Section. 5.4 Constructive aspects. If the supply cord is requested pre-bound form (duplex or triplex) three unipolar leads constructed and marked according to the manner indicated will be twisted with step less than or equal to 60 times the individual nominal diameter of cable. 5.5 Current carrying capacity of cables See Local Section 5.6 Marking and designation of the cable Characteristics The marking must be indelible paint, easily legible and carried out by printing, engraving or in relief above the surface of the outer sheath in a continuous way.

11 GLOBAL STANDARD Page 11 of 40 Consider HD 603-5X for cables type II. Specific characteristics are detailed in Local Section Cable designation See Local Section Designation example cable See Local Section. 6 TEST 6.1 Definitions Ambient temperature The dielectric tests shall be performed at ambient temperature of 20 ± 15 C and the rest of tests at 20 ± 5 C. Routine test The routine test must be made at 100% the total of spools that are delivered to assess compliance with the requirements of this standard. Sample test The sample tests are carried out over samples taken from a complete cable in order to assess compliance with the requirements of this standard. Acceptance test These are tests carried out by the supplier for the supply Type test Tests performed before marketing a cable of this standard in order to prove their service features match the intended applications. NOTE: These tests are such that, after made, shall not need to be repeated, unless modifications are made in the cable materials, process design or manufacture that affect their service features. (IEC ) Type tests are necessary for homologation of cables. When type test have been successfully performed on a type of cable covered by this standard with a specific conductor cross-sectional area and rated voltage, type approval shall be accepted as valid for cables of the same type with another conductor cross-sectional area and/or rated voltages, if they meet the following conditions: a) Utilize the same materials, ie insulation, sheath, and the same manufacturing process. b) The conductor cross-sectional area is not larger as that of the tested cable c) The rated voltage not exceeds that of the tested cable.

12 GLOBAL STANDARD Page 12 of 40 Note: The approval of the material must meet the current Enel Homologation Procedure. 6.2 Routine test N TEST TYPE OF CABLE I II III IV REQUIREMENTS TEST METHOD 1 Electric resistance of the conductor (A) X X X X IEC IEC Test voltage for 5 minutes X X X X Punctures must not occur IEC Spark test of the external sheath during its extrusion X X Punctures must not occur IEC Legend: Fields marked with: X : The test method applies -- : The test method does not apply 6.3 Sample Test N TEST TYPE OF CABLE I II III IV REQUIREMENTS TEST METHOD 1 Test of conductor X IEC IEC Conformity with the general requirements 3 Cable diameter measurement -- X HD 603-5X 2 X -- X X IEC IEC X HD 603-5X X - X X IEC Visual examination IEC Insulation thickness measurement -- X HD 603-5X ANEXO X -- X X IEC IEC No metallic outer sheath thickness measurement -- X HD 603-5X X IEC IEC Hot set test of the insulation X X HD Table 2A-DIX3 IEC Verification of the length declared by the supplier Length of lay wiring (non-compact conductors X X X X See Local Section See Local Section 6.3 X IEC IEC Legend: Fields marked with: X : The test method applies -- : The test method does not apply 6.4 Type Test (1/3) N TYPE TEST TYPE OF CABLE I II III IV REQUIREMENTS TEST METHOD

13 GLOBAL STANDARD Page 13 of 40 1 Type test, electrical 1.1 Insulation resistance measurement -- X HD Table 2A-DIX 3 HD X -- X X IEC Table 13 IEC Insulation resistance measurement at temperature in normal operation. X IEC Table 13 IEC Voltage test for 4 h. X - X X Punctures must not occur IEC Cable voltage test over complete cable - Test voltage (ca) 1.8kV - Test duration 4 h -- X Punctures must not occur HD 605 Sub-clause (Tests carried out in full cable without removing the cover) 2 Type test, non-electrical Over insulation 2.1 Conformity with the general requirements 2.2 Insulation thickness measurement -- X HD 603-5X 2 X -- X X IEC IEC HD 603-5X X -- X X IEC Visual examination IEC Mechanical properties (tensile strength and tensile elongation at break) a) Without ageing -- X HD Table 2A-DIX3 IEC X -- X X IEC b) After insulation ageing in air oven -- X HD Table 2A-DIX3 X -- X X IEC IEC Hot set test of the insulation -- X HD Table 2A-DIX3 X IEC IEC Water absorption of the insulator -- X HD Table 2A-DIX3 X IEC IEC Legend: Fields marked with: X : The test method applies -- : The test method does not apply 6.4 Type Test (2/3) N TYPE TEST TYPE OF CABLE I II III IV REQUIREMENTS TEST METHOD Over outer sheath

14 GLOBAL STANDARD Page 14 of No metallic outer sheath thickness measurement X IEC IEC Mechanical properties 2.7 a) Without ageing -- X X HD Table 4C DMO IEC IEC X HD Table 4C - DMO 1 b) After insulation ageing in air oven. X IEC IEC X IEC Pressure test at high temperature on the outer sheath -- X HD Table 4C-DMO 1 IEC Subclause 4.4 X IEC IEC Behaviour at low temperature 2.9 Test to be carried out without previous ageing: cold bending test for diameter 12.5 mm. X X HD table 4C-DMO 1 IEC IEC IEC cold elongation test for diameter 12.5 mm X HD Table 4C-DMO Loss of mass test in air oven X IEC IEC Tear resistance test X HD Table 4C-DMO Water absorption of the outer sheath -- X -- X HD Table 4C-DMO 1 HD 605 Subclause IEC X -- X -- IEC Content of heavy metals -- X HD Table 4C-DMO 1 Spectrophotometer 2.14 UV ray resistance -- X -- X HD Table 4C-DMO 1 HD 605 Sub-clause Hot pressure test (indentation) X IEC IEC Over the complete cable 2.16 Impact test on outer sheath and isolation at low temperature -- X HD Table 4C-DMO 1 Legend: Fields marked with: X : The test method applies -- : The test method does not apply 6.4 Type Test (3/3) X IEC IEC N TYPE TEST TYPE OF CABLE I II III IV REQUIREMENTS TEST METHOD

15 GLOBAL STANDARD Page 15 of Ageing test on the complete cable -- X HD Table 4C-DMO 1 X IEC Special bending test of the complete cable -- X Punctures must not occur 2.19 Abrasion resistance test -- X -- X HD Table 4C-DMO 1 IEC HD 605 Sub-clause HD 605 Sub-clause Longitudinal contraction shrinkage test (L= 200mm) -- X HD Table 4C-DMO 1 IEC Non-propagation of flame test -- X IEC Attached A IEC Fume emission Transmittance, minimum 2.23 Corrosiveness - ph, min. -- X % IEC X EN conductivity μs/mm, max -- X Conductor diameter measurement -- X HD 603-5X IEC X -- X X IEC Legend: Fields marked with: X : The test method applies -- : The test method does not apply Note: The data shown are for reference, under any doubt or discrepancy indications of the Standard Reference will prevail. Likewise, any change in the Reference Standards updates this document. 7 EQUIVALENTS STANDARDS: IEC STANDARDS EUROPEAN STANDARDS MERCOSUR STANDARDS IEC EN NM IEC EN NM - IEC QUALITY REQUIREMENTS Shall be evaluated at the Supplier Qualification. 9 ACCEPTANCE TEST For accepting cable in factory routine tests and samples test shall be carry out at the facilities in the country of the manufacturer. The participation of representatives of Enel in the test would be indicated in the bid request. 9.1 SAMPLING

16 GLOBAL STANDARD Page 16 of 40 Acceptance trials and tests shall be carried out based on an amount of samples proportional to the magnitude of the lot, as established in Table 8 and according to Standard IEC or similar standard. 9.2 Acceptable and rejectable quality level Specific characteristics are detailed in Local Section. The lot size shall be the total of drums to be supplied in each reception (partial or complete). The level of acceptance shall be performed following the procedure described in the Standard IEC with 1.5% AQL, level II, simple sampling; rejecting any defect in the revision whether minor, major, or critical. The cost of the rejected materials shall be borne supported by the supplier. The approval or rejection of each one of the samples shall be in accordance with that IEC for each one of the tests. Specifically, if an item does not meet the requirements of the Electrical Resistance test, according to the standards for approval of the referenced Standard, the Inspector may do this test on all units of the batch. Table 8: Samples and grade of acceptance to each of the trials Amountof reels Numbers of samples Acceptable level Rejection level to more If only one (1) drum is acquired, it must be tested according to the indications for a sample. 10 GUARANTEE Requirement of warranty will be indicated in the of request for bids, including periods and standards. 11 CONDITIONS OF SUPPLY See in Local Section.

17 GLOBAL STANDARD Page 17 of 40 A LOCAL SECTION LATAM: Ampla (Brazil), Chilectra (Chile), Codensa (Colombia), Coelce (Brazil), Edelnor (Perú), Edesur (Argentina). ITEM TÍTULO DESCRIPCIÓN 1 SCOPE Edesur (Argentina) To Edesur, the rated voltages are Uo / U (Um) of 0.6/1.1 (1.2) kv INTERNATIONAL STANDARD LOCAL STANDARDS Chilectra (Chile) ICEA S :Crosslinked Polyethylene Insulated Wire & Cable Codensa (Colombia) IEC : Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V Part 3: Non-sheathed cables for fixed wiring Edesur (Argentina) - IRAM 2178 Cables de energía aislados con dieléctricos sólidos extruidos para tensiones nominales de 1,1 a 33 kv. Codensa (Colombia) - RETIE Reglamento Técnico de Instalaciones eléctricas CODENSA 3.4 REPLACED LOCAL STANDARDS Ampla (Brazil),Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) - E-BT-001 Especificación Técnica: Cables unipolares Aislados de Baja Tensión. Ampla (Brazil),Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) The Table indicated the standard cables for LATAM, insulation and outer sheath: COMPANY Ampla XLPE / PVC X XLPE / PO X RHW-2 THWN-2 PVC90 Chilectra X X X (1) 4 TECHNICAL REQUIREMENTS Codensa Coelce X X X X Edelnor X X X XLPE/PVC : cross-linked polyethylene insulation / outer sheath of polyvinyl chloride. XLPE / PO : cross-linked polyethylene insulation / outer sheath of polyolefin RHW-2 : integral cross-linked polyethylene insulation (XLPE) THWN-2 : with Polyvinyl Chloride insulation (PVC) and outer sheath of Nylon (Polyamide) PVC90 : with Polyvinyl Chloride insulation (PVC) temperatura de conductor 90, bajo la norma IEC (1) Consider cable type III with RHW-2 insulation according ICEA S

18 GLOBAL STANDARD Page 18 of 40 ITEM TÍTULO DESCRIPCIÓN Edesur (Argentina) For Edesur consider the following characteristics of the conductor 5.1 Conductor Table 2: Cross-Sections and electrical resistance of copper conductors Nominal crosssectional area (mm2) Minimum number of wires in the conductor Diameter of conductors (mm) Maximum resistance of conductor at 20 C Minimum Maximum Ω/km Table 3: Cross-Sections and electrical resistance of aluminium conductors Nominal crosssectional area (mm2) Minimum number of wires in the conductor Diameter of conductors (mm) resistance of conductor at 20 C Minimum Maximum Ω/km Ampla (Brazil),Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) For Chilectra, cables Type III, consider ICEA S Insulation For Codensa shall be PVC insulation with temperature of conductor at 90ºC, according standard IEC For all LATAM, insulation thicknesses are indicated in the Common List Ampla (Brazil),Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina 5.3 Outer Sheath. The thicknesses of the outer sheath are indicated in the Common List.

19 GLOBAL STANDARD Page 19 of 40 ITEM TITLE DESCRIPTION Ampla (Brazil),Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina OUTER SHEATH COLOUR LAYOUT COMPANY Black, w hite and Red Triplexed in flat formation Edelnor Yellow, blue red and w hite (*) Single cable Codensa Colour Black and w hite Duplex in flat formation Edelnor Ampla Chilectra Black Unipolar Coelce Edelnor Edesur For Edelnor the cable outer sheath must be white, black and red colors for layout parallel triplex, white and black for duplex formation and black color for single core cables. Note: Triplexed and strand types refer to the same type of cable formation, it makes a difference in every Enel Group Distribution Companies by using local terminology. (*) For CODENSA, Colour of the outer sheath shall be according to RETIE. Edelnor (Perú) For Edelnor, consider the following configuration. For parallel cable Duplex formation: 5.4 Constructive aspects.

20 GLOBAL STANDARD Page 20 of 40 For parallel cable Triplex formation: Chilectra (Chile), Codensa (Colombia,Edelnor (Perú), Edesur (Argentina) Nominal crosssectional area Current carrying capacity of cables (ampacity) Copper Cables Current- carrying Aluminum Cables Current- carrying 5.5 Current carrying capacity of cables mm2 (A) (A) Current - carrying capacity of cables from the Table of the NEC, is for directly buried cables, in steady state at 90 C, and ambient temperature of 30 C. Ampla (Brazil), Coelce (Brazil), Current carrying capacity of cables (ampacity) Nominal crosssectional Copper Cables Aluminum Cables area Current- carrying Current- carrying mm2 (A) (A)

21 GLOBAL STANDARD Page 21 of 40 Installation conditions: group of three single-core cables in ducts 5 "; Soil temperature: 20 C; Ambient temperature: 40 C; Mounting Depth: 0.60 m; The distance between the cables in horizontal formation (Cables are installed in the same conduit; Thermal resistivity of soil: 1.0 Km / W; The operating temperature of cable: 90 Ampla (Brazil), Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) The cable shall be marked out on the outer sheath for each meter in length, embossed or indelibly painted on white the following information: Characteristics Name of Distribution Company Name of the Manufacturer Manufactured year Cable Description Maximum voltage between phases Conductor material and insulation Cross-section (in mm²) Footage correlative / marking sequence (when indicated in purchase order) Maximum operating temperature (only Codensa according RETIE) The cables can be presented in unipolar manner, braided and twisted triplex or duplex. Markings with paint shall pass the adherence test, the markings must be perfectly legible often strong rubber with diluents. Note: Triplexed and strand types refer to the same type of cable formation, it makes a difference in every Distributed by using local terminology Ampla (Brazil), Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) Company name: XXXXXXXX Manufacture name: NNN: traded mark of manufacturer Cable designation Type of cable: NA2XY: Aluminium conductor wires compact circular and Class 2 N2XY: Copper conductor wires compact circular and Class 2 Insulation type: XR: reticulated polyethylene XLPE PVC : Polyvinyl Chloride Outer sheath: PEA: Polyethylene extruded in aluminium PO: Polyolefin PVC: Polyvinyl Chloride PE: Polyethylene Nylon

22 GLOBAL STANDARD Page 22 of 40 Nominal cross-sectional area: XXX mm2 Rated voltage: 0.6/1(1.2) kv 0.6/1.1(1.2) kv Year of manufactures AAAA, represented with 4 numbers for year Designation example cable Edelnor (Perú) For EDELNOR S.A.A Manufactured XXXXXXXX NNN NA2XY-XR-PVC 120mm2 0.6/1 kv 2014 Stranded compacted circular conductors and stranded shaped conductors, class 2, XLPE insulation Outer sheath of XLPE of section 120 mm2 Uo/U 0.6/1 kv manufactured in Ampla (Brazil),Coelce (Brazil), For Ampla and Coelce consider the following tests. 6.2 Routine test Routine test N TEST 1 2 Electric resistance of the conductor (A) DC corrected for 20 Test voltage for 5 minutes AC, 3,5kV TYPE OF CABLE I III IV REQUIREMENTS TEST METHOD X IEC IEC X X X Punctures must not occur. IEC IEC Tabla Sample test Ampla (Brazil), Chilectra (Chile), Codensa (Colombia, Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) the length declared by the supplier, take into account: On one of the cable samples on which the conductor electrical resistances is verified, it must be checked, by measurement, that the finished cable length is not shorter than that declared by the Supplier by more than 0.5 m. In the case the verification result is negative, it must be continued on other samples to execute a statistical control for attributes on sample as described in the UNE-ISO 2859/93 standard, adopting the simple sampling plan, ordinary inspection and acceptable quality level 2,5%, general inspection

23 GLOBAL STANDARD Page 23 of 40 Ampla (Brazil), Chilectra (Chile), Codensa (Colombia), Coelce (Brazil), Edelnor (Perú), Edesur (Argentina) PACKAGING AND LABELING The conductor will be delivered by the manufacturer in wood or metal drum, which will not be returned, according to maximum and minimum dimensions shown in Table 9 and according to Figure N 3. The total length of the driver given on each reel may not be less than requested in the purchase order and shall not exceed by more than ±5%. The maximum gross weight of the reel is packed 2,200 kg. It should protect the ends of each cable reel with caps to prevent moisture ingress and must be internally secured to the spool ends, and must be mechanically protected against possible damages from the handling and transport of each reel, leaving both accessible through the use of internal helix or conch in each reel ends. When the distance between the source of manufacture and storage location of the purchaser involving only a means of transport and less than 200 km away, the use of internal propeller only reels of conductors greater than or equal to 120 mm ² section is required ; this restriction does not release moisture protection of both visible ends of the conductor, mechanical protection and careful handling of the reels. 11 CONDITIONS OF SUPPLY The wooden spools will be treated according to international requirements for pest control, avoiding the compound " Pentachlorophenol " and " Creosote ". Treatment should include, at least : high toxicity to decay organisms, high penetration and holding power, chemical stability, non-corrosive to metals and substances affecting physical characteristics of the wood and weather protection. Note: The purchase order could specify a maximum length of cable in drum. Figura N 3 Trial type Table N 9 Trial Dimension. A (1) B C (1) D (2) E mm mm mm mm mm 1730 (3) (4) Notes:

24 GLOBAL STANDARD Page 24 of 40 (1) Maximum value. (2) Minimum value (3) El Double the minimum cable curvature radius for transportation, in accordance with Manufacturer specifications. (4) 300 or 180 mm, in accordance with the type of spool (large or small, respectively) All spools must: 1. Be protected by wooden staves on the exterior, which are to be secured to the wooden spools. An equivalent system is to be used on the metal spools. The staves are to be fastened by steel or plastic bands. 2. Show the correct direction for unwinding the spools, by means of an arrow located on the sides. 3. Have a rustproof nameplate on each side of the spool. Each nameplate will show the following information (as a minimum), in the language of the country where the cable is to be used (Spanish or Portuguese). The following data will be required: Name of the Manufacturer Country of origin of the batch The words: ENEL GROUP Purchase Order number Maximum voltage between lines Conductor Material and insulation type Nominal cross-sectional area (mm²) Number of the spool within the batch Net weight and gross weight, in kg. Length of the conductor, in meters. Edesur (Argentina) For Edesur, the reels must meet the requirements of the IRAM standard

25 GLOBAL STANDARD Page 25 of 40 B LOCAL SECTION ENDESA DISTRIBUCIÓN ELÉCTRICA (Spain) ITEM TITLE DESCRIPTION 3.2 INTERNATIONAL STANDARDS Endesa Distribución Eléctrica (Spain) Norma ISO 2859 Sampling procedures for inspection by attributes Endesa Distribución Eléctrica (Spain) REAL DECRETO 842/2002, de 2 de agosto, por el que se aprueba el Reglamento Electrotécnico para Baja Tensión e Instrucciones Técnicas Complementarias (R.E.B.T.) 3.3 LOCAL STANDARDS EN : Metodos de ensayo para cables eléctricos y cables de fibra óptica sometidos a condiciones de fuego. Parte 1-2: Ensayo de resistencia a la propagación vertical de la llama para un conductor individual aislado o cable. Procedimiento para llama premezclada de 1 kw. HD 605: Additional testing methods for electric cables (Métodos de ensayos adicionales para cables eléctricos). Norma HD 603-5X: Distribution cables of rated voltage 0,6/1 kv. Part 5: XLPE insulated cables unarmoured. Section X: Polyolefin sheathed cables without concentric conductor (Type 5X-1). 3.4 REPLACED LOCAL STANDARDS Endesa Distribución Eléctrica (Spain) Norma Común NCDC Cables BT para Redes Subterráneas Endesa Distribución Eléctrica (Spain) Table 3: Cross-Sections and electrical resistance of aluminium conductors 5.1 Conductor Nominal crosssectional area (mm2) Minimum number of wires in the conductor Diameter of conductors (mm) Mínimum Maximum Maximum resistance of conductor at 20 C (Ω/km) , ,

26 GLOBAL STANDARD Page 26 of 40 Endesa Distribución Eléctrica (Spain) The lower value of the thickness of the six measurements should not be less than the nominal value by more than 15% +0.2 mm. Table 5: Nominal thickness of outer sheath. 5.3 Outer Sheath. Cross-section Thickness Type nominal value (mm2) (mm) Colour Endesa Distribución Eléctrica (Spain) For Endesa the color of outer sheath is black. 5.5 Current carrying capacity of cables Endesa Distribución Eléctrica (Spain) For all uses of cables, the maximum current-carrying permitted for conductors must be in accordance with standard R.E.B.T Characteristics Endesa Distribución Eléctrica (Spain) Consider the standard HD 603-5X for Cables Type II Cable designation Endesa Distribución Eléctrica (Spain) The cable marking must content: Name of the supplier complete cable designation Last two digits of the year of production Design code Marking each meter And acceptable code if is available The separation between the markings must not be greater than 50 cm Designation example cable Endesa Distribución Eléctrica (Spain) The cable designation must content: structural cable characteristics - insulation: X (cross-linked polyethylene) - sheath: Z1 (polyolefin) assigned voltage of the cable expressed in kv: values Uo and U information regarding the conductor. The digit 1, corresponding to only one conductor, followed by the x sign, the nominal section of the conductor expressed in sq. mm and the letter Al that indicates conductor in aluminium is used: Example of cable designation for Endesa: XZ1 (S) 0.6/1 kv 1x150

27 GLOBAL STANDARD Page 27 of 40 ITEM TÍTULO DESCRIPCIÓN Endesa Distribución Eléctrica (Spain) For Endesa considerer the following 6.2 Routine Test N TEST 2 Test voltage for 5 minutes 3 Spark test of the external sheath during its extrusion TYPE OF CABLE II -- X 6.3 Sample Test Endesa Distribución Eléctrica (Spain) the length declared by the supplier, take into account: On one of the cable samples on which the conductor electrical resistances is verified, it must be checked, by measurement, that the finished cable length is not shorter than that declared by the Supplier by more than 0.5 m. In the case the verification result is negative, it must be continued on other samples to execute a statistical control for attributes on sample as described in the UNE-ISO 2859/93 standard, adopting the simple sampling plan, ordinary inspection and acceptable quality level 2,5%, general inspection Ι. Endesa Distribución Eléctrica (Spain) The level of acceptance shall be performed following the procedure described in the Standard with 2.5% AQL, level II, simple sampling; rejecting any defect in the revision whether minor, major, or critical. The cost of the rejected materials shall be borne by the supplier. The approval or rejection of each one of the samples shall be in accordance with that requested in the Standard IEC for each one of the tests. Specifically, if an item does not meet the requirements of the Electrical Resistance test, according to the standards for approval of the referenced Standard, the Inspector may do this test on all units of the batch. 9.2 Acceptable and rejectable quality level Table 8: Samples and grade of acceptance to each of the trials Amountof reels Numbers of samples Acceptable level Rejection level to most If only one (1) drum is acquired, it must be tested according to the indications for a

28 GLOBAL STANDARD Page 28 of 40 sample. Endesa Distribución Eléctrica (Spain) CONDITIONS OF SUPPLY The admitted tolerance for a samples is equal to ± 3% of the length indicated in the order; shorter lengths are admitted up to a maximum of 10% of the cables forming the delivery lot (same transport document), provided that each one is at least 100 m; in calculating the aforesaid 10%, the sample sizes whose length is reduced due to the acceptance tests are excluded. 11 CONDITIONS OF SUPPLY a) Protections The cables must be protected in such a way as to prevent damage or tampering during transport and handling, also within the sphere of ENEL. If you plan to use a type of protection as an alternative to staves, it must not be made with materials that during disposal are classifiable as hazardous waste; in any case, all protections that are alternatives to staves must be explicitly approved by ENEL during certification or during the tender process. The free ends of the cable must be properly protected against the penetration of water and moisture during transport, storage (which may also be outdoors) and lying. The finished and inspected cable drums at the Constructor's plant cannot be parked without staves or equivalent protections in zones exposed to bad weather (sun, rain, etc.) and to accidental impacts unless for the time necessary for their staving or similar protection. Unless otherwise provided in the purchase order letter, the protection (staving or other) of drums must be executed 100%. The spacing between the external layer of the cable and the staving must be sufficient for preventing damage to the cable and in any case never less than 50 mm; to comply with said prescription, sizes of length reduced up to the minimum allowed can be preferred, if necessary. b) Marking and tara. On the outer surface of at least one of the covers of the drum transport, the following information must be indicated in clearly legible and indelible characters, plus ordering information, where applicable - Name of manufacturer - Cable Type. - The effective length of the cable. - Order Number. - Number of drum. - Year of manufacture (last two digits). - Number of production order. - Direction of rotation of the drum (arrow). - Direction of unwinding (if the drum wrapped). - Gross weight, net and tare of the drum. c) Transport. In order to facilitate unloading, drums should be arranged in the vehicle with a distance between the covers for inputting the charging and discharging means, so that either can be discharged with handling means with forks. d) Photographic documentation

29 GLOBAL STANDARD Page 29 of 40 A side view photo and a front view photo showing the empty drum, the drum with wound cable without external cover, the drum complete with external cover (for a total of at least 6 photos) and the detailed view of the identification plate where the drum and supply data are provided (at an enlargement level such as to allow the information photographed to be read).

30 GLOBAL STANDARD Page 30 of 40 C LOCAL SECTION ENEL DISTRIBUZIONE (Italy), ENEL DISTRIBUTIE: Banat, Dobrogea, Muntenia (Romania). ITEM TÍTULO DESCRIPCIÓN Distribuzione Enel (Italy) 3.2 INTERNATIONAL STANDARDS EN : Metodos de ensayo para cables eléctricos y cables de fibra óptica sometidos a condiciones de fuego. Parte 1-2: Ensayo de resistencia a la propagación vertical de la llama para un conductor individual aislado o cable. Procedimiento para llama premezclada de 1kW. HD 603-5X: Distribution cables of rated voltage 0,6/1 kv. Part 5: XLPE insulated cables unarmoured. Section X: Polyolefin sheathed cables without concentric conductor. HD 605: Additional testing methods for electric cables (Métodos de ensayos adicionales para cables eléctricos). Norma ISO 2859 Sampling procedures for inspection by attributes. Distribuzione Enel (Italy) 3.3 LOCAL STANDARDS Standard PVR 006 Operational Note Vendor Rating Control: BARCODES Warranty and Traceability of Enel Distribution Materials. Distribuzione Enel (Italy) 3.4 REPLACED LOCAL STANDARDS Norma Común NCDC4147 Cables BT para Redes Subterráneas. Specifica ENEL: DC4152 Cavi per Bassa Tensione unipolari con conduttori in Alluminio isolati con gomma etilenpropilenica ad alto modulo elástico, o con XLPE, sotto guaina di PVC. Specifica ENEL: DC Distribuzione Enel (Italy) Table 3: Cross-Sections and electrical resistance of aluminium conductors 5.1 Conductor Nominal crosssectional area Minimum number of wires in the conductor Diameter of conductors mm Resistance of conductor at 20 C Minimum Maximum Ω/km

31 GLOBAL STANDARD Page 31 of 40 Distribuzione Enel (Italy) 5.2 Insulation The color of the insulation must be natural or white color

32 GLOBAL STANDARD Page 32 of 40 Distribuzione Enel (Italy) For Enel, the thickness of the outer sheath will be: 5.3 Outer Sheath. Cross-section Nominal thickness (mm2) (mm) 10 1,3 25 1, Distribuzione Enel (Italy) Current carrying capacity of cables (ampacity) Unipolar Cable I. Conductor II - Insulation III - Outer sheath IV - Marking 5.5 Current carrying capacity of cables Capacity (1) per laying Thermal current Country Formation directly in pipe of short Code (n x mm2) In free air In pipe in underground underground circuit (2) (A) air(a) (A) (A) (KA) x x x x x x Quadrupole cable with visible helix Cores laid up with left helix with standard pitch equal to (80± 8) times the maximum value specified for diameter D of the phase cores.

33 GLOBAL STANDARD Page 33 of 40 I. Conductor II - Insulation III - Outer sheath IV - Marking Country Code Formation (n x mm2) In free air (A) Capacity (1) per laying In pipe in air (A) directly undergr ound (A) in pipe undergr ound (A) Thermal current of short circuit (2) (KA) x95+50 N x N x N (1) The capacity values are valid in steady condition for 4 unipolar cables in contact and of the quadrupole cable with visible helix with temperature of the conductors of 90 C and also: - for laying in free air or in pipe in air: ambient temperature 30 C; - for laying directly underground or in underground pipe: laying depth 0.80 m, ground temperature 20 C, ground thermal resistivity 1 C. m/w. (2) The thermal current of short circuit values apply in the following conditions: - short circuit duration: 1s; - initial temperature of the conductors: equal to the maximum admissible temperature in steady condition (see note 1); - final temperature of the conductors: 250 C;

34 GLOBAL STANDARD Page 34 of 40 Distribuzione Enel (Italy) DESIGNATION AND MARKING: Designation: The cable designation envisages what is stated below: structural cable characteristics - conductor in aluminium: A - round rigid corded conductor: R - insulation: E4* (cross-linked polyethylene) - sheath: E - cores laid up with visible helix (if required): X assigned voltage of the cable expressed in kv : values Uo and U nominal section of the cable expressed in sq. mm Example of cable designation: ARE4*E X 0.6/1 kv 95 Marking: Cable The marking must be indelible, easily legible and carried out by engraving or in relief on the sheath. The cable marking envisages what is stated below: property name: Enel cable designation manufacturer name or trademark identification of the production plant with a different letter of the alphabet project index (to choose exponentially 01, 02, 03..) This index must be modified with every construction variation of the single core (phase or neutral). year and month of fabrication can be put on a cable surface other than that of the other inscriptions, observing the maximum step of 1 metre; in this case the inscription can also be made with ink. metric marking. It is put only on the core sheath of "PHASE 1" in the multipolar cables with visible helix. The inscription can be put on a cable surface other than that of the other inscriptions and it can also be made with ink. identification of the cores is put on the sheath of each core and must be repeated at least every 100mm in the intervals between two subsequent series of inscriptions; the inscription can be repeated with a step no greater than 100mm on a cable surface other than that of the inscriptions; in this case it can also be made with ink Designation example cable Distribuzione Enel (Italy) Example of cable marking For Cable Unipolar: ENEL ARE4*E-0.6/1 kv 50 XXXXX B For Multipolar cable with visible hélix Core of PHASE 1: ENEL ARE4*EX-0.6/1 kv 95 XXXXX B PHASE 1 PHASE 1. Core of PHASE 2 or 3: ENEL ARE4*EX-0.6/1 kv 95 XXXXX B PHASE x. PHASE x. 6.2 Routine Test Distribuzione Enel (Italy)

35 GLOBAL STANDARD Page 35 of 40 N TEST 1 TYPE OF CABLE II REQUERIMENTS TEST METHOD Electric resistance of the conductor (A) X X X X HD 605 HD Test voltage for 5 minutes X X X X 3 Spark test of the external sheath during its extrusion X X X X Punctures must not occur Punctures must not occur IEC IEC Nota For test and Is possible to replace with the spark test according IEC Distribuzione Enel (Italy) 6.3 Sample Test the length declared by the supplier, take into account: On one of the cable samples on which the conductor electrical resistances is verified, it must be checked, by measurement, that the finished cable length is not shorter than that declared by the Supplier by more than 0.5 m. In the case the verification result is negative, it must be continued on other samples to execute a statistical control for attributes on sample as described in the UNE-ISO 2859/93 standard, adopting the simple sampling plan, ordinary inspection and acceptable quality level 2,5%, general inspection Distribuzione Enel (Italy) For Enel consider the following tests for acceptance of the lot: 9 ACCEPTANCE TEST

36 GLOBAL STANDARD Page 36 of 40 ITEM CLASS (1) ENSAYO SAM P (2) MOD (3) DESCRIPTION OF THE TEST REQUIREME NTS TEST METHOD 1 A o S Conformity with the general requirements HD 603-5X 2 Visual examination 2 A o R RInsulation resistance measurement at ambient temperature HD tabla 2A- IEC DIX 3 3 A oo R Cable high voltage test: Test voltage: 3.5 kv (AC) or 8.5kV (DC) Test duration : 5 min Perforations must not occur HD 605 Subclause A o R Electric resistance of the conductor (A) IEC HD 605 Subcláusula A l/lote R Verification of the length declared by the supplier See Note E See Note E 6 A o S Cable diameter measurement IHD 603-5X IEC A o S Insulation thickness measurement HD 603-5X IEC A o S No metallic outer sheath thickness measurement HD 603-5X IEC A o S In insulation: Propiedades mecánicas (Mechanical properties (tensile strength and tensile elongation at break). Without ageing HD Table 2A-DIX3 IEC A o S Hot set test of the insulation HD table 2A- IEC DIX3 11 A o S In Outer sheath: : Mechanical properties. Without ageing HD Table 4C DMO 1 IEC (1) A: Acceptance test (2) Sampling plans to adopt for the acceptance tests: o: Simple sampling, reduced inspection, acceptable quality level 2.5% and, to define the numerousness of the sample to take from each lot, inspection level I, according to the UNI ISO 2859 standard. oo: Simple sampling, ordinary inspection, acceptable quality level 1.0% and, to define the numerousness of the sample to take from each lot, inspection level II, according to the UNI ISO 2859 standard. Note: For Supplies in skeins, the sampling can be made on the basis of a conventional numerousness of the lot defined as ratio between the total length of the skeins belonging to the inspection lot and the maximum length envisaged for supplies on drum, and the samples are taken from the skein lot ready for shipment. (3) Method: R= Test to execute on the entire delivery size. If the R is followed by m, is allowed only in the case of cables to be supplied in skeins and provided the continuous verification of

37 GLOBAL STANDARD Page 37 of 40 the insulation with "spark test" is repeated immediately before the cable enters the skeiner machine, execute the control tests on multiple sizes of a maximum length no longer than the maximum length envisaged for the cable supplies on drum. S= Tests to execute on a section of cable, semi-finished product or component. E: On one of the cable sizes on which the conductor electrical resistances is verified, it must be checked, by measurement, that the finished cable length is not shorter than that declared by the Supplier by more than 0.5 m. In the case the verification result is negative, it must be continued on other sizes to execute a statistical control for attributes on sample as described in the UNI-ISO 2859/93 standard, adopting the simple sampling plan, ordinary inspection and acceptable quality level 2,5%, general inspection I. Distribuzione Enel (Italy) 11 CONDITIONS OF SUPPLY Size lengths The nominal size of cable delivery is 500 m. The admitted tolerance for a size is equal to ± 3% of the length indicated in the order; shorter lengths are admitted up to a maximum of 10% of the sizes making up the delivery lot (same transport document), provided that each one is at least 100 m; in calculating the aforesaid 10%, the sample sizes whose length is reduced due to the acceptance tests are excluded. The admitted maximum length, which cannot exceed 1000 m (with relevant weight 1200 kg for divisible cables) is that in the table for the various types of cable, using the specified coil, in observance of the minimum spacing of the cable from the staving indicated in the following paragraphs. Packaging The drum to use for LV cable delivery can be: - to UNI-CEI 2-1 and 2-2 standard (Type A - REUSABLE) - not to UNI-CEI 2-1 and 2-2 standard (Type B - NOT REUSABLE) In addition to what is required in 7.5 of this standard, the wording TYPE A or TYPE B must be put on the external wall of the flange. For both types, in the case of drums or wooden pallets produced outside the European Community, it is necessary that these packaging be made in observance of what is established in the 2000/29/EC directive and subsequent amendments, "Protective measures against the introduction into the Community of organisms harmful to plants or plant products and against their spread within the Community" and be compliant with note ISPM 15 of 18/03/2002. Drums to UNI-CEI 2-1 and 2-2 standard (Type A - REUSABLE) Drums not to UNI-CEI 2-1 and 2-2 standard (Type B - NOT REUSABLE) Due to the cable traceability in the network a bar code shall be applied on the drum. The bar code structure shall complying with technical specification PVR006. Technical report (RT) The technical report (TR) must consist of the documents described below. It is specified that some requirements in the following paragraphs are preceded by the wording Prescription, and others by the wording Indication. In the first case the requirements are normative and therefore satisfying them is a necessary (not sufficient) condition for acceptance during the trial period. In the second case, on the other hand, the content of the required information is not binding for acceptance during the trial period. Technical document: Technical working drawing of the drum, including representation of the two sections