Updated on July 15, 2025 01:50:17 PM
Low voltage switchgear and control gear are indispensable accessories in a power distribution and control system which performs such operations as switching, protecting as well as regulating circuits having voltage ratings up to 1000V AC or 1500V DC only. To the extent of India, the BIS has framed particular provisions under the standard for Low-Voltage Switchgear and Controlgear Part 3 related to switches, disconnectors, switch-disconnectors, and fuse-combination units. This standard is crucial to guarantee the safety of these devices together with their performance to protect the installation and its personnel.
The second issuance of this standard incorporates technology and practice changes, focusing on deliberate quality manufacturing and production, sound testing and proving techniques, and stringent certification procedures. BIS certification also improves the credibility of the product and obeys national standards thus should be required by manufacturers who have the intention of penetrating a competitive market. In this blog, we will explore various factors related to this standard such as the process of its production, Performance standards of this part, testing procedures, and the importance of BIS certification for ensuring a Safe and reliable electrical system in India.
BIS Registration Sample
Low-Voltage Switchgear and Controlgear Part 3 is the name of a standard developed by the BIS that deals with the electrical and mechanical characteristics of switches, disconnectors, switch-disconnectors, and fuse-combination units. This standard is important to prevent or minimize risk on electrical forms and to provide reliable and efficient electrical installations. They are essential in regulating electrical circuits and safeguarding apparatus against overloads and short circuits.
The standard covers all aspects of these devices, including the structural design aspect, the performance requirement aspect, the testing and measurement aspect, and the certification aspect of these devices. To achieve the desirable safety and operating standards of the present day, a second version of this standard has been proposed for revising the specifications of these components in order to respond to the technological evolution and better address the current practices.
The process of manufacturing low-voltage switchgear involves several imperative activities before the final products are developed that necessarily conform to the specifications prescribed by BIS. Key stages include:
The performance characteristics of low voltage switchgear are specified as follows, Key performance criteria include:
Testing methods for low-voltage switchgear can be categorized into:
Performed on all units to ensure specific functional requirements of operation.
Conducted on a sample of a population and its results were validated to align with the performance standard set.
These may be done under certain conditioning or when testing a certain facet of performance.
Each test is conducted to standard operating conditions to check the reliability and safety of the equipment or system.
Testing methods for low-voltage switchgear, as explained in more detail below. Various testing methods include:
Labeling and markings are fundamental requirements of BIS standards regarding specifications for low–voltage switchgear and control gear: Part 2 circuit – Breakers. Each product must include:
| General Documents | Technical Documents |
|---|---|
| Business License | Plant Layout |
| Trademark License | List of Manufacturing Equipment |
| Application Form | Manufacturing Process Flow Chart |
| Authorization Letter | Product Literature |
| Laboratory Test Reports | List of testing equipment and machinery |
| MSME Certificate | Product’s Technical Specification |
| List of Calibration Certificate |
The BIS certification process for Low-Voltage Switchgear and Controlgear Part 3 Switches, Disconnectors, SwitchDisconnectors and Fuse-Combination Units (Second Revision ):
Applications are filled including relevant documents that outline the production processes of the manufacturers.
A BIS officer pays a visit to the manufacturing company in order to assess the levels of compliance with set regulations.
The samples from the production batches are analyzed at the BIS-accredited laboratories.
As a result of the evaluation of these facilities and products, BIS grants permission to the manufacturers to use the ISI mark on their products.
To sustain the standards practice, normal assertions are carried out.
This is a process that the manufacturers need to understand so that they can get an efficient certification process.
Importance of BIS Certification
BIS certification is crucial for several reasons:
Conclusion
Low voltage switchgear is considered a vital device in the new electrical network supplying and protecting different processes. The manufacturing processes, testing methods, and certification of these devices that the BIS QCOS standard promotes guarantee that they offer requisite safety and performance protocols. To Indian manufacturers, the BIS certification expands product legitimacy and, in a more saturated economy, promotes consumer confidence.
In this way, the manufacturers would be able to greatly enhance electrical safety in various industries and at the same time encourage advancement in low voltage technology.
At Professional Utilities, we leverage our industry knowledge and expertise to help businesses navigate complex regulations, minimize risks, and optimize operations for maximum efficiency and profitability.
Low voltage switchgear means electrical switching, controlling, or protecting equipment used for circuits with voltage up to 1000V AC or 1500V DC.
Through BIS certification products are recognized for meeting the laid down safety and quality standards of India, boosting market acceptance and access.
The tests are, dielectric tests, temperature rise tests, short circuit tests, and mechanical endurance tests are frequently in use.
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