Electrical Standards and Practices - JIS and IEC

Japanese Industrial Standards (JIS)

• Japanese Industrial Standards (JIS) specify standards for industrial activities in Japan.
• The standardization process is coordinated by the Japanese Industrial Standards Committee (JISC) and published through the Japanese Standards Association.

History of JIS

• Meiji Era: Private enterprises were responsible for creating standards.
• The Japanese government did have standards for procurement of certain articles, like munitions.
• World War II: Simplified standards were established to increase material output.
• The present Japanese Standards Association was established after Japan’s defeat.
• 1946: The JIS Committee regulations were promulgated, and new Japanese standards (new JES) were formed.
• 1949: The Industrial Standardization Law was enacted, forming the legal foundation for the present JIS.
• 2004: The Industrial Standardization Law was revised, and the “JIS mark” (product certification system) was changed.
• The new JIS mark has been applied since October 1, 2005, upon re-certification.
• The old mark was allowed to be used until September 30, 2008, for a transition period of 3 years.
• All JIS certified Japanese products must have the new JIS mark after October 1, 2008.

Management of JIS

• The JIS is managed by the Japanese Industrial Standards Committee (JISC) under the Ministry of Economy, Trade and Industry (METI).
• JISC oversees the development, maintenance, and revisions of JIS to ensure they remain relevant to technological and market changes.
• Key Divisions:
  • Technical Committees
  • Standards Development Organizations (SDOs)
  • Certification Bodies
  • Accreditation Bodies

Stages of JIS Development

• Stage 1: Decision to develop a new or revised JIS.
• Stage 2: Deliberation has started under JISC (or Accredited Standard Developing Organization (SDO)).
• Stage 3: Public comment period.
• Stage 4: Public comment period ended.
• Stage 5: JIS has been published.
• There is a public announcement to allow for the comment submission period (at least 60 days) based on article 4.1 of the WTO/TBT Agreement and to collect information on related patents based on JIS patent policy, before establishment and revision of JIS.
• If there are any questions about the reported contents, the related sections of the responsible ministries are ready to deal with inquiries.
• You can view the public announcement on JIS draft undertaken by Accredited SDO through the link included below the list.
• (Note)
• The comment submission period with the following mark - "X" - before the standard title is shortened in cases where urgent problems
• based on Annex 3, L of the WTO/TBT Agreement.

JIS Mark Certification

• Businesses that receive certificates of conformity from accredited certification bodies can display the JIS Mark on their products, electromagnetic record provision documents, or service provision documents.
• As of March 2019, there are 24 JIS-accredited certification bodies, including three outside of Japan, which have issued about 8,700 certifications for JIS Marks.

Coverage of JIS

• JIS covers industrial and mineral products with the exception of:
  1. Medicines
  2. Agricultural chemicals
  3. Chemical fertilizers
  4. Silk yarn
  5. Foodstuffs, agricultural and forest products designated under the Law Concerning Standardization and Proper Labeling of Agricultural and Forestry Products.
• Letter Symbols
  • The letter symbol indicates the technical area (JIS Division).
  • A 4 or 5-digit number is added to locate the JIS within that Division.

Significance of JIS

• JIS ensures products made or imported into Japan meet strict performance and reliability benchmarks.
• It covers critical areas such as materials, electronics, machinery, and consumer products.
• Similar to ISO and ANSI, it provides guidelines tailored to Japan's economic needs, promoting consistency, reliability, and safety.
• This standardization supports domestic trade and facilitates integration into global markets.
• JIS embodies Japan's commitment to quality, enhancing the reputation of manufacturers who adhere to its standards.

Standardization Items Symbols

• JIS C 7501: Most JIS standards have this type of symbol.
• JIS Q 14001: Mainly used when JIS adopts an international standard identically.
• JIS X 5056-1: Used when JIS adopts an international standard but specifies only a part of the necessary requirements.

Examples of JIS Divisions and Standards

• Standards are named like “JIS X 0208: 1997”, where X denotes area division, followed by four digits (or five digits for some of the standards corresponding ISO standards), and the revision release year.
• A - Civil Engineering and Architecture
  • JIS A 1101:2019 – Methods of test for compressive strength of concrete
  • JIS A 4411:2016 – Reinforced concrete pipes
  • JIS A 1416:2017 – Testing methods for thermal insulation materials
  • JIS A 5508:2013 – Particleboards for structural use
  • JIS A 6519:2018 – Roofing tiles – Performance requirements and test methods
• B - Mechanical Engineering
  • JIS B 1176:2022 – Hexagon socket head cap screws
  • JIS B 7502:2016 – Vernier calipers
  • JIS B 8330:2021 – Industrial valves – Pressure testing of metallic valves
  • JIS B 1651:2019 – Roller chains for power transmission
  • JIS B 6015:2018 – Gear pumps for general purposes
• C - Electronic and Electrical Engineering
  • JIS C 61000-3-2:2018 – Electromagnetic compatibility (EMC) – Limits for harmonic current emissions
  • JIS C 8303:2020 – Plug and socket-outlets for domestic use
  • JIS C 8105-1:2020 – General requirements for LED lighting equipment
  • JIS C 8714:2017 – Lithium-ion secondary cells and batteries
• D - Automotive Engineering
  • JIS D 0203:1994 – Water resistance testing for automotive components
  • JIS D 1001:2019 – Automobile engine performance testing
  • JIS D 1601:2021 – Vibration testing methods for automotive parts
  • JIS D 5705:2018 – Safety performance requirements for motorcycles
  • JIS D 9421:2020 – Automobile brake fluid
• E - Railway Engineering
  • JIS E 1101:2016 – Dimensions and tolerances for railway tracks
  • JIS E 4021:2018 – Railway vehicle bogies – General specifications
  • JIS E 5006:2020 – Railway signal systems
  • JIS E 7105:2019 – Performance test methods for train braking systems
  • JIS E 2151:2017 – Railway wheelsets – Dimensional and quality requirements
• F - Shipbuilding
  • JIS F 6600:2021 – Ship steering gear
  • JIS F 7301:2017 – Marine lifeboats
  • JIS F 7207:2016 – Marine mooring ropes
  • JIS F 3012:2018 – Marine diesel engines
  • JIS F 3055:2020 – Marine fire-fighting equipment
• G - Ferrous Materials and Metallurgy
  • JIS G 3101:2017 – General structural steels
  • JIS G 3141:2021 – Cold rolled steel sheets and strips
  • JIS G 3452:2020 – Carbon steel pipes for ordinary piping
  • JIS G 5501:2020 – Grey iron castings
  • JIS G 4805:2019 – Stainless steel bars
• H - Nonferrous Materials and Metallurgy
  • JIS H 4000:2015 – Aluminium and aluminium alloys
  • JIS H 3100:2021 – Copper and copper alloy sheets, strips, and plates
  • JIS H 5111:2018 – Zinc alloy ingots for die casting
  • JIS H 3270:2020 – Titanium and titanium alloy sheets and plates
  • JIS H 7853:2019 – Magnesium alloys
• K - Chemical Engineering
  • JIS K 5400:2017 – Paints and varnishes – General testing methods
  • JIS K 3301:2021 – Hydrogen peroxide for industrial use
  • JIS K 2247-1:2019 – Lubricating oils – Classification and specifications
  • JIS K 7105:2020 – Plastics – Determination of tensile properties
  • JIS K 5600-1-7:2014 – Paints and varnishes – Scratch test methods
• L - Textile Engineering
  • JIS L 1096:2010 – Testing methods for woven fabrics
  • JIS L 1902:2015 – Antibacterial testing for textiles
  • JIS L 0842:2013 – Color fastness to washing
  • JIS L 0217:2020 – Care labeling of textiles
  • JIS L 1058:2019 – Testing methods for moisture absorption of textiles
• M - Mining
  • JIS M 8812:2021 – Testing methods for coal and coke
  • JIS M 8211:2018 – Testing methods for iron ore
  • JIS M 8801:2016 – Classification of coal
  • JIS M 8815:2020 – Proximate analysis of coal
  • JIS M 8209:2017 – Sampling of mineral products
• P - Pulp and Paper
  • JIS P 8111:2020 – Testing methods for paper and board
  • JIS P 4501:2017 – Recycled paper marking
  • JIS P 8120:2018 – Grammage and thickness of paper
  • JIS P 8201:2016 – Methods for determining the brightness of paper
  • JIS P 3801:2019 – Paper for food packaging
• Q- Management System
  • JIS Q 9001:2015 – Quality management systems
  • JIS Q 14001:2015 – Environmental management systems
  • JIS Q 45001:2018 – Occupational health and safety management systems
  • JIS Q 1000:2016 – Guidelines for quality assurance
• R - Ceramics
  • JIS R 6111:2018 – Testing methods for porcelain insulators
  • JIS R 5210:2016 – Portland cement
  • JIS R 1250:2020 – Glass fiber reinforced plastics
  • JIS R 6301:2017 – Ceramic tiles – Definitions, classifications, and specifications
  • JIS R 3206:2015 – Fine ceramics – Fracture toughness testing
• S - Domestic Wares
  • JIS S 2101:2018 – Stainless steel tableware
  • JIS S 6001:2017 – Testing methods for home electrical appliances
  • JIS S 3200-7:2020 – Water purifiers
  • JIS S 2046:2016 – Vacuum cleaners
  • JIS S 1102:2019 – Safety helmets
• T - Medical Equipment and Safety Appliances
  • JIS T 8101:2020 – Safety shoes
  • JIS T 8150:2018 – Protective face masks
  • JIS T 3221:2017 – Syringes for medical use
  • JIS T 9253:2019 – Blood pressure measuring devices
  • JIS T 3266:2016 – Dental implants
• W - Aircraft and Aviation
  • JIS W 4001:2016 – Aerospace – Screws and bolts for aircraft applications
  • JIS W 3403:2020 – Aerospace – Heat-resistant alloys for jet engines
  • JIS W 6002:2017 – Testing methods for aircraft composite materials
  • JIS W 8101:2019 – Aircraft fuel system components
• X - Information Processing
  • JIS X 0208:1997 – Code for the Japanese graphic character set
  • JIS X 0213:2004 – Supplementary Japanese character set for information interchange
  • JIS X 0501:2013 – QR Code (Two-dimensional symbol coding)
  • JIS X 6001:2014 – Optical character recognition (OCR) for printed text
  • JIS X 8341-3:2016 – Web content accessibility guidelines
• Z - Miscellaneous
  • JIS Z 2801:2012 – Antimicrobial testing for surfaces
  • JIS Z 1507:2018 – Packaging materials – General requirements
  • JIS Z 1702:2019 – Corrugated fiberboard boxes
  • JIS Z 8730:2017 – Safety signs and symbols for workplaces
  • JIS Z 7253:2019 – Hazard communication labels for chemicals

Similarities Between JIS and PEC Safety Standards

• Emphasis on Safety: Both emphasize safety, with JIS covering industrial equipment and PEC focusing on electrical systems.
• Regulation of Practices: Both function as regulatory frameworks guiding industries toward safe and standardized practices.
• National Development: Each standard plays a crucial role in supporting its country’s infrastructure, industry, and economy.

Differences Between JIS and PEC

Economic Benefits of JIS

• Enhances Japan’s global competitiveness by ensuring high-quality products.

Safety Advancements of JIS

• Promotes stringent safety measures across industries.

Environmental Considerations of JIS

• Encourages sustainable and eco-friendly industrial practices.

Industrial Growth due to JIS

• Facilitates Japan’s leadership in global technology and manufacturing sectors.

Importance, Role, and Future Impact of JIS

• JIS plays a vital role in Japan’s industrial and technological sectors, ensuring quality, safety, and innovation.
• Its alignment with global standards enhances Japan’s economic growth and competitiveness.
• JIS fosters continuous advancements in product safety, industrial efficiency, and technological innovation.
• Its influence extends beyond Japan, shaping international standards and trade practices.
• As technology evolves, JIS will continue to adapt, ensuring relevance in global industries.
• Strengthening JIS’s integration with international standards will further enhance Japan’s role in global trade and industrial development.

International Electrotechnical Commission (IEC)

• The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes international standards for all electrical, electronic, and related technologies.
• These standards serve as a basis for national standardization and as a reference when drafting international tenders and contracts.

Key Information about IEC

• Standards Organization Website: IEC.ch
• CEO: Philippe Metzger (From Feb 1, 2020)
• Founded: June 26, 1906, London, UK
• Lord Kelvin was elected as the first President of the International Electrotechnical Commission in 1906
• Headquarter: Originally located in London, the Commission moved to its current headquarters in Geneva, Switzerland in 1948.
• Official languages: English, French
• Motto: “Making electrotechnology work for you”
• Subsidiary: ISO/IEC JTC 1

Vision and Mission of IEC

• Vision: IEC everywhere for a safer, more efficient world
• Mission: To achieve worldwide use of IEC International Standards and Conformity Assessment systems to ensure the safety, efficiency, reliability, and interoperability of electrical, electronic and information technologies, to enhance international trade, facilitate broad electricity access and enable a more sustainable world.

Objectives of IEC

• Meet the requirements of the global market efficiently
• Assess and improve the quality of products and services covered by its standards
• Establish the conditions for the interoperability of complex systems
• Increase the efficiency of industrial processes
• Contribute to the improvement of human health and safety
• Help to ensure the protection of the environment

Strategy of IEC

• The Masterplan outlines the IEC strategy
• It takes into account the requirements of the whole IEC community and helps shape long-term objectives and policies.

IEC Management Structure

• Full Member National Committee
• General Assembly (GA)
• IEC Board (B)
• IEC Secretariat (SEC)
• Business Advisory Committee (BAC)
• President's Committee (PresCom)
• Advisory Groups
• Conformity Assessment Board (CAB)
• Management of conformity
• Market Strategy Board (MSB)
• Strategic groups
• Technology watch
• market priorities
• Systems work
• Advisory committees
• Standardization Management Board (SMB)
• Management of international standards
• Technical committees
• Special working
• groupe
• CAB working
• groups
• IECEE
• ECEX
• IECRE

IEC Membership

• IEC Membership Status Across the Globe
  • Full Members - 60
  • Associate Members - 23
  • Affiliates - 87
  • 190 - Countries in IEC Family

IEC Membership Categories and Rights

• Full Member
  • Vote on all TC/SC and Council documents via electronic voting system
  • Comment on all TC/SC and Council documents
  • FULL PARTICIPATION RIGHTS
• Associate Member
  • Authorized to submit votes on documents of 4 selected TC/SCs via electronic voting system
  • Authorized to submit comments only on TC/SC documents but not on the Council documents
  • LIMITED PARTICIPATION RIGHTS
• Affiliate
  • No voting rights
  • Authorized to submit comments on the documents of 10 selected TC/SC by
  • e-mail
  • NOT A MEMBERSHIP
  • ACCESS TO INFORMATION ONLY

Full Members of IEC

• IEC has currently 60 full members.
• The National Committee (NC) of IEC Member country is IEC National Committee.
• IEC National Committees (NCs), appoint experts to participate in IEC standardization and conformity assessment work.
• IEC National Committees are involved at every stage of standards development process.
• IEC publications are developed in over 200 technical committees and subcommittees (TC/SCs) and hundreds of working groups, each responsible for a specific technology area
• *Algeria, Argentina, Australia, Austria, Belarus, Belgium, Brazil, Bulgaria, Canada, Chile, China, Colombia, Croatia, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hungary, India, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Japan, Republic of Korea, , Kuwait, Luxembourg, Malaysia, Mexico, Netherlands, New Zealand, Norway, Oman, Pakistan , Philippines, Poland, Portugal, Qatar, Romania, Serbia, Saudi Arabia , Russian Federation, Singapore, Slovakia, Slovenia, South Africa, Spain, Sweden, Switzerland, Thailand, Turkey, Ukraine, United Arab Emirates, United Kingdom, United States.

Associate Members of IEC

• Associate members have full access to all working documents but limited voting rights in the technical work and no eligibility to managerial functions within the IEC.
• IEC has currently 23 associate members: Albania, Bahrain, Bosnia and Herzegovina, Cuba, Cyprus, Democratic People’s Republic of Korea, Estonia, , Georgia, Iceland, Jordan, Kazakhstan, Kenya, Latvia, Lithuania, Malta, Moldova, Montenegro, Morocco, Nigeria, Sri Lanka, The former Yugoslav, Republic of Macedonia, Tunisia, Vietnam.

IEC Affiliate Country Programme

• Eighty-seven developing and newly industrializing countries participate in the free IEC Affiliate Country Programme (www.iec.ch/affiliates).
• The Programme gives them the opportunity to get involved with the IEC – at no cost and without the burden of membership.
• Countries participating in the Programme benefit from 200+ free IEC International Standards for national adoption.
• They receive support to become more aware of the benefits of using International Standards and verifying conformity.
• Affiliates learn how to monitor relevant working documents, taking a step to step approach to establishing an IEC National Electrotechnical Committee (NEC).

Coordination of Technical Work

• To co-ordinate its technical work, the IEC has hundreds of liaisons with many organizations (www.iec.ch/standardsdev/how).
• It takes into account the requirements of the whole IEC community and helps shape long-term objectives and policies.

Overview of IEC

• IEC is a global, not-for-profit membership organization.
• IEC work facilitates technical innovation, affordable infrastructure development, efficient and sustainable energy access, smart urbanization and transportation systems, climate change mitigation, and increases the safety of people and the environment.
• IEC brings together more than 170 countries and provides a global, neutral and independent standardization platform to 20,000 experts globally.
• It administers 4 Conformity assessment systems whose members certify that devices, systems, installations, services, and people work as required.
• IEC publishes around 10 000 IEC International Standards which together with conformity assessment provide the technical framework that allows governments to build national quality infrastructure and companies of all sizes to buy and sell consistently safe and reliable products in most countries of the world.
• IEC International Standards serve as the basis for risk and quality management and are used in testing and certification to verify that manufacturer promises are kept.
• IEC work directly underpins the targets of all 17 UN Sustainable Development Goals.

Key People in IEC History

• Kelvin, William Thomson (1824 - 1907)
  • Known as Lord Kelvin
  • Invented the international system of absolute temperature.
• Colonel Crompton (1845 - 1940)
  • R. E. B. Crompton was a pioneer of electric lighting and public electricity supply systems.
  • The company he formed, Crompton & Co., was one of the world's first large-scale manufacturers of electrical equipment.
• Giovanni Giorgi (1871 - 1950)
  • Giovanni Giorgi was an Italian physicist and Electrical Engineer
  • Proposed the Giorgi system of measurement and laid the foundation for the modern measurement system, International System of Units.
• Charles Le Maistre (1874 - 1953)
  • Charles Le Maistre served as the evangelizing entrepreneur for extending voluntary consensus standards setting internationally.
  • Known as the father of international standardization.

Standards and Development

• Standards set minimum requirements in terms of safety, reliability, efficiency, and so forth.
• A standard is an agreed way of doing something in a consistent and repeatable way.

Where Standards Are Developed

• IEC Technical Committees (TC) and Subcommittees (SC)
• Working Groups (WG)
• Project Teams/Maintenance Teams (PT/MT)
• National Committees
• USNC Technical Advisory Groups or TAGs

Standards Development Stages

• Preliminary Work Item (PWI)
• New Work Item Proposal (NP)
• Working Draft (WD)
• Committee Draft (CD)
• Committee Draft for Vote (CDV)
• Final Draft International Standard (FDIS)
• International Standard (IS)
• Publication (IS)

IEC Publications

• IEC technical committees and subcommittees (TC/SCs) develop international standards and other types of publications for specific electrical, electronic, and information technology areas.
• IEC publications fall into two broad categories:
  • Normative publications: reflect agreements on technical characteristics to be fulfilled by a product, system, service, or object in question.
  • Informative publications: provide information such as implementation procedures or guidelines
• IEC International Standards are the result of full international consensus among the experts delegated by the IEC Members (National Committees) who actively participate in IEC work and liaison organization, i.e., international, broad regional organizations, consortia, and fora.
• IEC publications are bilingual, English, and French.

Benefits of IEC Standards

• Standards describe the processes and methods to ensure the safety, reliability, and performance of electrical and electronic devices and systems, including information technologies.
• Conformity assessment verifies that the written word is applied in the real world.
• Harmonized solutions enable industry to more easily sell its products in many countries.
• Standards simplify the quality control of components and services throughout the product value chain.
• Standards ensure that products from different manufacturers can work together
• Standards serve as the basis for testing and certification, to verify the performance, safety, efficiency, and reliability of a product.
• Standards help protect people, critical infrastructure, and the environment.
• Standards help avoid island solutions that can hinder the growth of markets.
• Standards reflect the global consensus on state-of-the-art solutions that can be applied by the private and public sectors in both developed and developing countries

Terminology Harmonization

• For avoiding ambiguity, a set of agreed concepts and definitions are used in electrotechnology.
• IEC Technical Committee 1 provides harmonization for all the terminology used by the various other TCs inside the IEC, but more broadly, by anyone interested or working in the electrotechnical field.
• Electropedia
  • Electropedia is produced by IEC, and it is the World’s Online Electrotechnical Vocabulary in 21 languages.
  • Electropedia, also known as the "IEV Online," contains all the terms and definitions in the International Electrotechnical Vocabulary IEV is published also as a set of publications in the IEC 60050 series that can be ordered separately from the IEC webstore

IEC Standards for Transmission & Distribution (T&D) Equipment

• IEC 60027 - Letter symbols to be used in electrical technology
• IEC 60038 - IEC Standard Voltages
• IEC 60050 - International Electrotechnical Vocabulary
• IEC 60059 - IEC standard current ratings
• IEC 60060-1 - High-voltage test techniques
  • Part 1: General definitions and test requirements
• IEC 60071 - Insulation co-ordination
• IEC 60076, all parts - Power transformers
• IEC 60099 - Surge arresters
• IEC 60127 - Miniature fuses
• IEC 60156 - Insulating liquids - Determination of the breakdown voltage at power frequency
• IEC 60214 - Tap-changers
• IEC 60216 - Electrical insulating materials - Thermal endurance properties
• IEC 60247 - Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan δ) and d.c. resistivity
• IEC 60254 - Lead-acid traction batteries
• IEC 60255 - Measuring relays and protection equipment
• IEC 60282 - High-voltage fuses
• IEC 60376 - Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
• IEC 60480 - Guidelines for the checking and treatment of sulfur hexafluoride (SF6) taken from electrical equipment and specification for its re-use
• IEC 60502 - Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV)
• IEC 60529 - Degree of protection provided by enclosure (IP code)
• IEC 60567 - Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
• IEC 60599 - Mineral oil-filled electrical equipment in service - Guidance on the interpretation of dissolved and free gases analysis
• IEC 60617 - Graphical symbols for diagrams
• IEC 60622 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - nickel-cadmium prismatic rechargeable single cells
• IEC 60623 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Vented nickel-cadmium prismatic rechargeable single cells
• IEC 60633 - Terminology for high-voltage direct current (HVDC) transmission
• IEC 60641 - Pressboard and presspaper for electrical purposes
• IEC 62262 - Degree of protection against external mechanical impacts (IK code)
• IEC 60255-1 - Measuring relays and protection equipment - Part 1: Common requirements
• IEC 60885 - Electrical test methods for electric cables
• IEC 60896 - Stationary lead-acid batteries
• IEC 60947, all parts - Low-voltage switchgear and controlgear
• IEC 61439, all parts - Low voltage switchgear and controlgear assemblies
  • (please observe new number of old IEC 60439)
• IEC 61869, all parts - Instrument transformer
• IEC 61643 - Low-voltage surge protective devices
• IEC 62271-1 - High voltage switchgear and controlgear, common specifications
• IEC 62271-200 - AC metal-enclosed switchgear and controlgear
  • (Old IEC 60298)
• IEC 62271-201 - Insulation-enclosed switchgear and controlgear
  • (Old IEC 60466)
• IEC 62271-202 - High-voltage switchgear and controlgear - Part 202: High-voltage/low-voltage prefabricated substation
• IEC 62721, all parts - Classification of environmental conditions

Comparison of IEC and PEC

Benefits of Adopting IEC Standards in the Philippines

• Enhanced Safety and Reliability
  • Adopting internationally recognized safety measures reduces risks of electrical failures and hazards.
• Global Compatibility
  • Standardized electrical systems improve interoperability, allowing Philippine industries