Standards

Standards Code Specification Description International Standards Mandatory requirement
SLS 1522
(2016)
Sri Lanka Standards Code of Practice for Grid Connected PV Power Systems. This Technical Standards defines the minimal information and documentation required to be handed over to a customer following the installation of a grid connected PV system. This standard also describes the installation, testing and commissioning procedure and documentation expected to verify the safe installations and correct operation of the system.
It is for use by system designers and installers of grid connected net energy metered solar PV systems as a template to provide effective documentation to a customer. By detailing the expected installation, testing & commissioning procedure, it is also intended to assist in the verification / inspection of a grid connected PV system after installation and for subsequent re-inspection, maintenance or modifications.
Additional, it is written for grid connected net energy metered solar PV systems only and not for AC module systems or systems that utilize energy storage (e.g. batteries) or hybrid systems.
None Yes
SLS 1542 (2016) Electric Cable for Photovoltaic System. This Technical Standard specifies cables for use in PV System, for installation at the Direct Current (DC) side. These cables are suitable for permanent outdoor use for many years under variable demanding climate conditions. Relatively stringent requirements are set for these products in line with the expected harsh usage conditions. It is applies to low smoke halogen free, flexible, single core power cables with cross link insulation and sheath.
In particular for use at the DC side of photovoltaic system, with a nominal DC voltage of 1.5kV between conductors and between conductor and earth. The cables are suitable to be used with Class II equipment. The cable are design to operate at a nominal maximum conductor temperature of 90 °C, but for a maximum of 20 000 hours a maximum conductor temperature of 120 °C at a maximum ambient temperature of 90 °C is permitted.
EN 50818 (2014) Yes
SLS 1543 Safety of Power Converts for Use in Photovoltaic Power System This Sri Lanka Standard Specification is published in two parts. IEC 62109 Yes
Part 1 (2016) General Requirements Applies to the power conversion equipment (PCE) for use in Photovoltaic (PV) systems where a uniform technical level with respect to safety is necessary. This standard defines the minimum requirements for the design and manufacture of PCE for protection against electric shock, energy, fire, mechanical and other hazards. This standard provides general requirements applicable to all types of PV PCE. IEC 62109-1(2010) Edition 1.0 Yes
Part 2 (2016) Particular Requirements for Investors Covers the particular safety requirements relevant to DC to AC (Alternating Current) inverter products as well as products that have or perform inverter functions in addition to other functions, where the inverter is intended for use in photovoltaic power systems. Inverters covered by this standard may be grid-interactive, stand-alone, or multiple mode inverters may be supplied by single or multiple photovoltaic modules grouped in various array configurations, and may be intended for use in conjunction with batteries or other forms of energy storage. IEC 62109-2 (2011) Edition 1.0. Yes
SLS 1544 Terrestrial Photovoltaic Design Qualification and Type Approval This Sri Lanka Standard Specifications for is published in different parts although only part of it has been used IEC 61215 Yes
Part 1 (2016) Test Requirements Lays down requirements for the design qualification and type approval of terrestrial photovoltaic (PV) modules suitable for long-term operation in general open-air climates, as defined in IEC 60721-2-1 (unwritten in this document). IEC 61215-1 (2016) Edition 1.0 Yes
Part 1-1 (2016) Special Requirements for Testing of Crystalline Silicon Photovoltaic Modules. This part of IEC 61215 lays down IEC requirements for the design qualification and type approval of terrestrial photovoltaic (PV) modules suitable for long-term operation in general open-air climates, as defined in IEC 60721-2-1. This standard is intended to apply to all terrestrial flat plate module materials such as crystalline silicon module types as well as thin-film Cd Te modules. This standard does not apply to modules used with concentrated sunlight although it may be utilized for low concentrator modules (1 to 3 suns). For low concentration modules, all tests are performed using the current, voltage and power levels expected at the design concentration. This standard does not address the particularities of PV modules with integrated electronics, nit may however be used as a basis for testing such PV modules. The objective of this test sequence is to determine the electrical and thermal characteristics of the module and to show, as far as possible within reasonable constaints of cost and time, that the module is capable of withstanding prolonged exposure in climates described in the scope. The actual lifetime expectancy of modules so qualified will depend on their design, their environment and the conditions under which they are operated.
The standard defines PV technology dependent modifications to the testing procedures and requirements per IEC 61215-1:2016 and IEC 61215-2:2016.
IEC 61215-1-1 (2016) Edition 1.0 Yes
Part 2 (2016) Test Procedures This is similar to the above standard, therefore is intended to apply to all terrestrial flat plate module materials such as crystalline silicon module types as well as thin-film modules.
The objective of this test sequence is to determine the electrical and thermal characteristics of the module and to show, as far as possible within reasonable constraints of cost and time, that the module is capable of withstanding prolonged exposure in gneral open-air climates. The actual lifetime expectancy of modules so qualified will depend on their design, their environment and the conditions under which they are operated.
IEC 61215-2 (2016) Edition 1.0 Yes
SLS 1545 Photovoltaic Modules Performance Testing and Energy Rating This Sri Lanka Standard Specification for is published in two parts
Part 1 (2016) Irradiance and Temperature Performance Measurements and Power Rating. This part of IEC 61853 describes requirements for evaluating PV module performance in terms of power (watts) rating over a range of irradiances and temperatures. IEC 61853-2 describes test procedures for measuring the performance effect of angle of incidence; the estimation of module temperature from irradiance, ambient temperature and wind speed; and impact of spectral response on energy production. IEC 61853-3 describes the calculations of PV module energy (watt-hours) ratings. IEC 61853-4 describes the standard time periods and weather conditions that can be utilized for calculating standardized energy ratings.
The object of this part of IEC 61853 is to define a testing and rating system, which provides the PV module power (watts) at maximum power operation for a set of defined conditions. A second purpose is to provide a full set of characterization parameters for the module under various values of irradiance and temperature. This set of measurements is required in order to perform the module energy rating described in IEC 61853-3.
IEC 61853-1 2011) Edition 1.0. Yes
Part 2 (2017) Spectral Responsivity, Incidence Angle and Module Operating Temperature Measurements. The IEC 61853 series establishes IEC requirements for evaluating PV module performance based on power (watts), energy (watt-hours) and performance ratio (PR). It is written to be applicable to all PV technologies, but may not work well for any technology where the module performance changes with time (e.g. modules change their behaviour with light or thermal exposure), or which experience significant non-linearities in any of their characteristics used for the modelling.
The purpose of this part of IEC 61853 is to define measurement procedures for measuring the effects of angle of incidence of the irradiance on the output power of the device, to determine the operating temperature of a module for a given set of ambient and mounting conditions and measure spectral responsivity of the module. A second purpose is to provide a characteristic set of parameters which will be useful for detailed energy predictions. The described measurements are required as inputs into the module energy rating procedure described in IEC 61853-3.
Edition 1.0. Yes
SLS 1546 Photovoltaic System Power Conditioners – Procedure for Measuring Efficiency. Describes guidelines for measuring the efficiency of power conditioners used in stand-alone and utility-interactive photovoltaic systems, where the output of the power conditioner is a stable AC voltage of constant frequency or a stable DC voltage. IEC 61683 (1999) Edition 1.0 Yes
SLS 1547 (2016) Photovoltaic System – Characteristic of the Utility Interface Applies to utility-interconnected photovoltaic (PV) power systems operating in parallel with the utility and utilizing static (solid-state) non-islanding inverters for the conversion of DC to AC. Lays down requirements for interconnection of PV systems to the utility distribution system. It is describes specific recommendations for systems rated at 10 kVA or less, such as may be utilized on individual residences single or three phases. This standard applies to interconnection with the low voltage utility distribution system. IEC 61727 (2004) Edition 1.0 Yes
SLS 1553 Photovoltaic Module Safety Qualification This Sri Lanka Standard Specification for is published in two parts
Part 1 (2017) Requirements for construction Specifies and describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This part 1 of SLS 1553 (IEC 61730) pertains to the requirements of construction. PV modules covered by this standard are limited to a maximum DC system voltage of 1500 V. IEC 61730-1 (2016) Edition 2.0.
Part 2 (2017) Requirements for Testing Defines the requirements of testing. This International Standard series lays down IEC requirements of terrestrial photovoltaic modules suitable for long-term operation in open-air climates.
The sequence of tests required in this standard may not test for all possible safety aspects associated with the use of PV modules in all possible applications. This standard utilizes the best sequence of tests available at the time of its writing. There are some issues, such as the potential danger of electric shock posed by a broken PV module in a high voltage system, which should be addressed by the system design, location, restrictions on access and maintenance procedures.
The objective of this standard is to provide the testing sequence intended to verify the safety of PV modules whose construction has been assessed by IEC 61730-1. The test sequence and pass criteria are designed to detect the potential breakdown of internal and external components of PV modules that would result in fire, electric shock, and/or personal injury. The standard defines the basic safety test requirements and additional tests that are a function of the PV module end-use applications. Test categories include general inspection, electrical shock hazard, fire hazard, mechanical stress, and environmental stress.
IEC 61730-2 (2016) Edition 2.0. Yes
SLS 1554 Low-Voltage Switchgear and Control gear This Sri Lanka standard specification for is published in three parts:
Part 1 (2017) General Rules. The purpose of this standard is to harmonize as far as practicable all rules and requirements of a general nature applicable to low-voltage switchgear and control gear to obtain uniformity of requirements and tests throughout the corresponding range of equipment and to avoid the need for testing to different standards.
All those parts of the various equipment standards which can be considered as general have therefore been gathered in this standard together with specific subjects of wide interest and application, e.g. temperature-rise, dielectric properties, etc.
IEC 60947-1 (2014) Edition 5.2 Yes
Part 2 (2017) Circuit-Breakers This part of IEC 60947 series applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1000 V AC or 1500 V DC; it also contains additional requirements for integrally fused circuit-breakers.
Circuit-breakers rated above 1000 V AC but not exceeding 1500 V AC may also be tested to this standard.
It applies whatever the rated currents, the method of construction or the proposed applications of the circuit-breakers may be.
IEC 60947-2 (2016) Edition 5.0 Yes
Part 3 (2017) Switches, Disconnectors, Switch-Disconnectors and Fuse-Combinations Units. This part of IEC 60947 applies to switches, disconnectors, switch-disconnectors and fuse combination units to be used in distribution circuits and motor circuits of which the rated voltage does not exceed 1000 V AC or 1 500 V DC.
The manufacturer shall specify the type, ratings and characteristics according to the relevant standard of any incorporated fuses.
This part does not apply to equipment coming within the scope of IEC 60947-2, IEC 60947-4-1 and IEC 60947-5-1. However, when switches and fuse-combination units coming into the scope of this part are normally used to start, accelerate and/or stop an individual motor they shall also comply with other additional requirements,
IEC 60947-3 (2017) Edition 3.2. IEA 60947-4-1 IEA 60947-5-1 Yes
SLS-IEC 62446-1 (2017) Photovoltaic System Requirements for Testing, Documentation and Maintenance. This Technical Standards is published in one part for grid connected system, documentation, commissioning tests and inspection. IEC 62446-1 (2017) Edition 1.0. Yes
IEC 61701 Salt mist corrosion testing of photovoltaic (PV) modules Describes test sequences useful to determine the resistance of different PV modules to corrosion from salt mist containing Cl- (NaCl, MgCl2, etc.). No
IEC 60068-2 Environmental testing This part of IEC 60068 deals with cold tests applicable to both non heat-dissipating and heat dissipating specimens. For non heat-dissipating specimens, Tests Ab and Ad do not deviate essentially from earlier issues. Test Ae has been added primarily for testing equipment that requires being operational throughout the test, including the conditioning periods. The object of the cold test is limited to the determination of the ability of components, equipment or other articles to be used, transported or stored at low temperature. No
IEC 602272 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V - Part 1: General requirements TApplies to rigid and flexible cables with insulation, and sheath if any, based on polyvinyl chloride, of rated voltages Uo/U up to and including 450/750 V used in power installations of nominal voltage not exceeding 450/750 V a.c No
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