Applications & Articles

Standards: What Electricians Need to Know.

Standards and codes are the backbone of electrical engineering. They ensure the safety, reliability and efficiency of electrical installations and play a central role in meeting high quality requirements and facilitating the free movement of goods.

Table of Contents.

Overview of Key Standards and Their Application
Measurement and Testing Technology: Guaranteeing Standards Compliance
New Requirements: Safety and Efficiency in Buildings and Energy Systems
Challenges and Solutions
Conclusion and Outlook

For electrical specialists, standards are indispensable guidelines that reflect the current state of the art. They define uniform requirements for materials, procedures and test methods, ensuring the compatibility and interoperability of different components. This reduces technical barriers to trade and promotes exports, as products that comply with international standards gain easier access to global markets.

In addition, the application of standards contributes to cost efficiency. Standardized processes and products can reduce development times and lower production costs. Liability risk is also minimized, as standards are regarded as generally accepted rules of technology and can therefore be used as a reference in legal disputes.

In Switzerland, standards are developed and continuously advanced by organizations such as Electrosuisse. More than 1,000 experts work in over 100 technical committees to ensure that standards reflect the latest technological developments and that safety and quality are maintained in the electrical industry.

For day-to-day practice, this means that electrical installers and test technicians should always maintain up-to-date knowledge of the applicable standards. This not only enables compliance with legal requirements, but also helps optimize their own work processes and ensure a high quality of work performed.

Overview of Key Standards and Their Application.

NIN 2025 (Low-Voltage Installation Standard):
NIN 2025 (SN 411000) regulates the planning, installation and testing of low-voltage electrical installations. It provides clear specifications for safety requirements, protective measures and the operation of such installations. For electrical installers, chapters on overcurrent protection, residual current protection and earthing, for example, are of central importance.

SN EN 61439 (Low-voltage switchgear and controlgear assemblies):
This standard defines requirements for the design, testing and documentation of switchgear and controlgear assemblies. It ensures that systems meet high safety and quality standards and withstand operating loads.

Safety requirements and protective measures:
Standards such as the NIN define safety requirements to protect people, animals and property. These include measures such as protection against electric shock, overcurrent protection and protection in the event of insulation faults. The selection of suitable protective devices and the dimensioning of electrical installations are also key topics.

Testing obligations and documentation:
Standards-compliant testing of electrical installations is essential. It includes visual inspection, testing of the protective conductor system, insulation measurements and residual current tests. Complete documentation is not only required by law, but also facilitates maintenance and troubleshooting.

Importance of measurement and testing technology:
Modern measuring and test instruments play a decisive role in demonstrating standards compliance. Instruments such as insulation testers, earth testers and multifunction testers deliver precise and reliable results. Specialist distributors such as dataTec offer a broad range of such instruments, specifically tailored to the requirements of electrical engineering.

The application of these standards and the use of modern test technology contribute significantly to quality assurance. They support electrical installers in complying with legal requirements and meeting their own standards for professional and safe work.

Testing and Measurement Technology:
Guaranteeing Standards Compliance.

Measuring and test instruments are important tools that support compliance with relevant standards. They ensure the safety of electrical installations, protect against liability risks and help increase the efficiency of energy systems. One of the central tasks is to ensure protective measures. This includes:

Insulation resistance measurement: This measurement ensures that the insulation of cables and equipment is intact in order to prevent dangerous short circuits and electric shocks.
Residual current testing: This test ensures that residual current devices (RCDs) operate reliably and protect human life in the event of a fault.

In addition, measurement and testing technology plays an important role in efficiency testing of energy systems. Photovoltaic systems (PV) and energy storage systems are checked for their performance and efficiency. Such tests are crucial for maximizing yields and detecting potential system faults at an early stage.

Practical Examples

Testing RCDs in accordance with IEC 60364-6:
RCDs are indispensable safety components. Their testing includes tests for tripping current, response time and proper function. Standards-compliant measuring instruments enable these tests to be carried out quickly and precisely and ensure that safety requirements are met.
Measuring power quality in accordance with SN EN 50160:
The SN EN 50160 standard defines requirements for power quality, for example with regard to voltage level, frequency and harmonics. This is particularly relevant in industrial applications, where disturbances caused by poor power quality can lead to production downtime and damage to machinery. Modern power analyzers can accurately record and document these parameters.

Technological Trends

Measurement and testing technology has made major advances in recent years:

Intelligent test technology:
Smart instruments offer automation functions that significantly simplify and accelerate test processes and data analyses.
Digital logging:
Results are recorded digitally and can be integrated directly into test reports. This saves time and reduces the error rate.
Automatic documentation:
Creation of standards-compliant test reports. This not only facilitates documentation obligations, but also contributes to traceability.

To gain an overview of technical innovations in measurement and testing technology and find suitable solutions for individual requirements, manufacturer-independent advice from a specialist distributor is recommended.

New Requirements:
Safety and efficiency in buildings and energy systems.

Technological developments and political strategies such as the Energy Strategy 2050 and climate strategy are creating new requirements for safety and efficiency in electrical engineering. Electrical installers and test technicians face the task of aligning innovative technologies with existing standards and creating future-proof systems.

Challenges arising from technological developments

Energy Strategy 2050 and climate strategy:
Swiss energy policy calls for a drastic reduction in energy consumption and greater integration of renewable energies. This has direct implications for testing requirements:

Systems such as solar installations, energy storage systems and heat pumps must operate efficiently and meet strict legal requirements.
At the same time, requirements for power quality are increasing, as decentralized feed-in from renewable sources can cause potential disturbances in the power grid. Measurement and testing technology helps address these challenges.

Integration of e-mobility:
E-mobility is another key factor in the energy transition. Charging stations for electric vehicles must be tested in accordance with IEC 61851, among other standards, to ensure safety and performance. Tests include, among others:

Testing charging cables and connections.
Verifying current-carrying capacity and protective mechanisms such as DC residual current protection.

Building Technology and Digitalization

Smart building systems:
Digitalization is fundamentally changing building technology. Intelligent controls for lighting, air conditioning and security systems require specific tests to ensure their functionality and energy efficiency.

Networked systems must be tested for interoperability and standards compliance.
Modern test technology enables digital logging and automated documentation of test results, as described, for example, in IEC 60364-8-1.

IEC 60364-8-1 standard for energy-efficient systems:
This standard defines requirements for the energy efficiency of electrical installations. It includes:

Optimization of energy flows in buildings.
Use of energy-efficient devices and intelligent controls.

By applying this standard, electrical installers can actively contribute to reducing energy consumption while also meeting legal requirements.

Challenges and Solutions.

Electrical engineering is a field characterized by continuous technological progress and changing requirements. This presents electrical installers and test technicians with a number of challenges, particularly in the practical implementation of standards and adaptation to new developments. At the same time, practice-oriented solutions are available to successfully meet these requirements.

Complexity of the standards landscape

The large number of international, European and national standards — such as IEC 60364, SN 411000 (NIN), SN EN 50160 or IEC 61851 — makes it difficult to maintain an overview and implement them in practice. Each of these standards has specific requirements that are relevant to varying degrees depending on the application. For specialists, this means:

Extensive standards compliance work: Every installation and every system must be carefully planned, tested and documented to ensure compliance with all specifications.
Rapid technological change: New technologies such as smart building controls, e-mobility and decentralized energy systems introduce additional requirements that are often only incorporated into standards at a later stage.

Digital tools and specialized software help integrate standards efficiently into planning and execution. Associations and specialist distributors provide current information on standards and support users with training and guidelines.

Need for Continuous Training and Professional Development

Regular training and professional development are indispensable in order to keep pace with the dynamically evolving standards landscape. Requirements range from technical details to application-oriented solutions:

Technical training: Topics such as testing smart building systems in accordance with IEC 60364-8-1 or charging stations in accordance with IEC 61851 require in-depth technical understanding, which is conveyed through targeted training.
Standards updates: Changes such as the updated NIN 2025, additions to existing standards or national adaptations make it necessary for specialists to always stay up to date.
Practical workshops: Associations such as SNV or Electrosuisse and specialist distributors such as dataTec organize workshops in which specialists can become familiar with modern measurement and testing technology and train in its application.

Up-to-date knowledge of applicable standards not only enables compliance with legal requirements, but also helps optimize work processes and ensure a high quality of work performed.

Practice-Oriented Solution Approaches

The combination of continuing education, technical equipment and efficient processes enables specialists to manage the complexity of standards:

Partnerships with experts: Cooperation with specialist organizations and independent distributors helps improve understanding of normative requirements.
Investments in intelligent test technology: Modern instruments with digital logging and automation simplify test processes and reduce susceptibility to errors.
Internal knowledge networking: Companies can create internal competence centers in which specialist knowledge is pooled and regularly passed on to employees.

The complexity of the standards landscape and the need for continuous professional development are challenges that can be mastered with the right approaches. Digital tools, smart test technology and well-founded training offerings form the basis for successful implementation in practice. This not only supports compliance with legal requirements, but also increases the efficiency and quality of work.

Conclusion and Outlook.

Standards and codes form the foundation for safety, efficiency and innovation in electrical engineering. They provide clear guidelines for the planning, installation and testing of electrical installations and thereby ensure reliable operation that meets both legal requirements and the demands of modern technologies.
The sections of this article explain how crucial it is for electricians and testing technicians to work in compliance with standards:

Importance of standards: Standards such as NIN 2025, IEC 60364 or SN EN 50160 are indispensable for maintaining safety and quality standards.
Supporting measurement and testing technology: Modern technologies such as intelligent test systems and automated documentation facilitate compliance with standards and improve efficiency.
New requirements: Forward-looking developments, including the integration of e-mobility and digitalization in building technology, create new challenges that can be addressed through innovative test methods and continuous professional development.
Challenges and solutions: The complexity of the standards landscape requires close cooperation with experts, the use of modern tools and regular training in order to always stay up to date.

However, standards compliance is not only a legal necessity, but also a quality attribute and a decisive safety factor. Electrical installers and test technicians who consistently apply standards create trust among their customers, minimize liability risks and support the sustainable development of modern energy systems.

Establishing Standards Compliance

In an industry that is developing rapidly, compliance with standards remains a decisive success factor. Companies and specialists are called upon to embed standards compliance as an integral part of their working methods. This includes:

Using modern measurement and testing technology that is compatible with current standards.
Regular exchange with associations and specialist distributors and participation in training offerings.
Readiness to adapt to new technologies and requirements.

The outlook shows that electrical engineering will continue to play a key role in addressing global challenges such as the energy transition in the future. Standardization remains a reliable guide for reconciling innovation and safety. By working in compliance with standards, electrical installers not only ensure the quality of their work, but also actively contribute to shaping a sustainable and safe future.

Do you have an individual request?

You are not quite sure yet or have further questions about the products? Do not hesitate to contact us. Whether directly on the phone or via online demo conveniently in front of your screen - our experts are there for you.

Do you have questions about a product?

Product number

Start product request

Do you want to use one of our individual services?

Select a category

Start individual request