Winding wires for submersible motors are essential for the proper functioning of the motor. These wires are coated with HR PVC insulation to resist heat and moisture. They offer reliable electrical insulation and also prevent short circuits during their operation. These wires for the submersible motors can be used in both domestic and industrial sectors.
To ensure the performance of these wires, the Bureau of Indian Standards has drafted the requirements under IS 8783 (Part 4/Sec 1): 1995. This Indian standard ensures that the wires meet the parameters related to quality and insulation performance. Manufacturers of the PVC-insulated wires must obtain certification to sell their product in the Indian market.
What is IS 8783 (Part 4/Sec 1): 1995?
This is the Indian Standard for PVC-insulated winding wires used in submersible motors. In order to ensure that the wires are safe for use, a few requirements must be met. As per the BIS (Bureau of Indian Standards), winding wires are:
- Tested for thermal ageing and heat shock
- Checked for tensile strength
- Verified for conductor resistance
- Evaluated through high voltage test
PVC Insulated Winding Wires BIS License Eligibility Guide
BIS authorisation under IS 8783 (Part 4/Sec 1): 1995 is required for businesses involved in manufacturing, importing, or supplying Submersible Motor Wires in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the wires are covered under QCO.
- Foreign Manufacturers - Need certification to export the product to India.
- Importers/Brand Owners - Must ensure that the submersible motor winding wire is BIS-certified before selling.
- Sellers/Distributors - Should only sell certified insulated wires.
Testing and Inspection Requirements
To ensure reliable performance of Winding Wires Used in Submersible Motors, the Bureau of Indian Standards outlines the minimum requirements under IS 8783 (Part 4/Sec 1): 1995. This certification ensures that manufacturers maintain uniformity in product quality. It also ensures that the winding wires deliver proper insulation and long-term performance. The BIS testing parameters and quality checks for the wires are listed below:
| Test Group | What is Tested | Purpose |
|---|
| Conductor Tests | Conductor resistance, conductor diameter, annealing test | Ensures proper electrical conductivity, purity, and mechanical strength of the copper conductor |
| Dimensional Tests | Overall diameter, thickness of insulation | Ensures uniform size, correct insulation covering, and compliance with design specifications |
| Electrical Tests | High voltage test (water immersion), insulation resistance (at 27°C and 85°C) | Ensures electrical safety, insulation integrity, and resistance to leakage under operating conditions |
| Mechanical Strength Tests | Tensile strength and elongation at break (before ageing) | Ensures durability, flexibility, and mechanical strength of insulated wires during installation and use |
| Thermal Ageing Tests | Thermal ageing in air oven | Evaluates long-term thermal stability and performance of insulation material under heat exposure |
| Heat Resistance Tests | Heat shock test | Ensures insulation does not crack or fail under sudden temperature changes |
| Deformation & Shrinkage Tests | Hot deformation test, shrinkage test | Ensures insulation maintains shape and performance under heat and stress conditions |
| Moisture Resistance Tests | Water absorption test | Ensures insulation resistance against moisture and prevents degradation in wet environments |
| Electrical Integrity Tests | Volume resistivity (insulation resistance at test temperature) | Ensures consistent electrical insulation performance even at elevated temperatures |
BIS Approval Process for Submersible Motor Winding Wires
The BIS Authorisation process ensures that the motor winding wire meets the required standards for proper and efficient operation. This process is set by the Bureau of Indian Standards (BIS) and includes the following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for measurement accuracy, electrical performance, and insulation strength.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: BIS officials inspect the manufacturing units to verify the production process, safety measures, and quality control system.
- Grant of BIS License: If all the above requirements are satisfactorily met, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: Once approved, the manufacturer can affix the ISI mark on the product with a CM/L number, confirming that the product meets BIS standards.
Documents List for IS 8783 (Part 4/Sec 1): 1995 Certification
| Document Category | Foreign Manufacturer Requirement |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| Raw Material Details | List of Raw Materials, Supplier Details, Raw Material Invoices, Raw Material Test Certificates |
| Testing & Quality Control | List of Testing Equipment, Calibration Certificates, QC/Lab In-charge Appointment Letter & Qualification |
| Production Details | Annual Installed Capacity, Last Year Production Value |
| Product & Packaging Details | Quantity per Package, Nature of Packing, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| Brand & Certification Documents | Trademark / Brand Certificate, Consent Letter from BIS Recognized Laboratory |
| Additional Documents | Weekly Off Details, Hygiene Document (if applicable), Relaxation Letter (if applicable), Any Other Relevant Document |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
Foreign manufacturers are required to appoint an Authorized Indian Representative (AIR) in India. This person is the local point of contact for Bureau of Indian Standards (BIS) and takes care of all rules and compliance work in India.
Marking Requirements & License Validity
Marking Requirements
Once a manufacturer obtains BIS approval, the ISI Mark for PVC-insulated wires must be clearly and permanently marked on its packaging or on the product. In addition to the ISI Mark, essential details such as the manufacturer’s identification and licence number (CM/L) need to be displayed. This ensures the product meets all safety and quality standards. More details are mentioned below:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 8783 (Part 4/Sec 1): 1995 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note: Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
Validity for Submersible Motor Wires BIS License
| particulars | Details |
|---|
| Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillance | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
HR PVC Insulated Winding Wires BIS License Fees
The cost of BIS Approval for a submersible pump motor wire includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- Marking fee depends on the product category and production volume (MSME benefits may apply).
- Testing charges are directly payable to BIS-recognised laboratories.
- Consultancy fees depend on product type and factory location.
Conclusion
The Bureau of Indian Standards has outlined the requirements for winding wires used in submersible motors under IS 8783 (Part 4/Sec 1): 1995. The requirements mentioned in the standard must be followed by the manufacturer of HR PVC insulated winding wires. It also defines certain criteria related to insulation performance and durability to ensure reliable operation in varying conditions. Certification from the Bureau of Indian Standards would enable the company to meet the legal requirements of India. Only those companies are allowed to trade with the winding wires that have their products certified by BIS. EVTL India makes the certification journey stress-free by handling documentation, application filing, coordination with BIS-approved laboratories and avoiding unnecessary delays.
