BIS Certification for Flexible Cables for Miner’s Cap-Lamps – IS 2593:1984-Qualitance India

BIS Certification for Flexible Cables for Miner’s Cap-Lamps – IS 2593:1984-Qualitance India

BIS Certification for Flexible Cables for Miner’s Cap-Lamps – IS 2593:1984

Flexible cables for miner’s cap-lamps are specialised electrical cables used in mining operations to connect the miner’s cap-lamp headpiece with the battery unit.

These cables play an important role in providing a reliable electrical connection between the battery and the lighting source used by underground mine workers.

Since mining environments involve challenging operating conditions, including moisture, mechanical stress, abrasion and exposure to different environmental conditions, the cables must comply with prescribed electrical, mechanical and physical requirements.

To ensure product quality and safety, the Government of India has made BIS certification mandatory for flexible cables for miner’s cap-lamps covered under the applicable Quality Control Order.

The original applicable Indian Standard was IS 2593:1984 – Specification for Flexible Cables for Miner’s Cap-Lamps (First Revision).

Manufacturers supplying covered products in India must obtain a BIS licence under Scheme-I of the BIS (Conformity Assessment) Regulations, 2018.

Important Standard Update: BIS revised IS 2593:1984 to IS 2593:2023 – Flexible Cables for Miners’ Cap Lamps – Specification (Second Revision). The revised standard was published on 2 January 2024, and the earlier edition was withdrawn on 4 April 2024.

This article explains the BIS certification requirements, product construction, technical requirements, testing parameters, laboratory facilities, documentation and certification process for flexible cables for miner’s cap-lamps.

1. Is BIS Certification Mandatory for Flexible Cables for Miner’s Cap-Lamps?

<badge color=”success”>Mandatory BIS Certification</badge>

Yes. BIS certification is mandatory for flexible cables for miner’s cap-lamps covered under the Cables (Quality Control) Order, 2020.

The Department for Promotion of Industry and Internal Trade (DPIIT), Ministry of Commerce and Industry, notified the Cables Quality Control Order through Notification No. S.O. 280(E), dated 21 January 2020.

The Order requires covered cables to conform to the applicable Indian Standard and bear the BIS Standard Mark under a licence issued by BIS in accordance with Scheme-I.

The implementation date of the Cables Quality Control Order was 1 August 2020.

Goods or articles meant exclusively for export are excluded under the provisions of the Order.

Applicable Standard and Certification Details

Particular	Details
Product	Flexible Cables for Miner’s Cap-Lamps
Original Standard	IS 2593:1984
Original Standard Title	Specification for Flexible Cables for Miner’s Cap-Lamps
Revised Standard	IS 2593:2023
Revision	Second Revision
Certification Scheme	BIS Scheme-I (ISI Mark Scheme)
Applicable QCO	Cables (Quality Control) Order, 2020
QCO Notification	S.O. 280(E), dated 21 January 2020
QCO Implementation Date	1 August 2020
Revised Standard Publication	2 January 2024
Withdrawal of 1984 Edition	4 April 2024
Certification Authority	Bureau of Indian Standards (BIS)
Standard Mark	ISI Mark

Important Update: IS 2593:2023

BIS revised IS 2593:1984 and published IS 2593:2023 as the Second Revision.

Important points include:

• IS 2593:2023 was published on 2 January 2024.
• The revised edition superseded IS 2593:1984.
• IS 2593:1984 was withdrawn on 4 April 2024.
• BIS LIMS now lists IS 2593:2023 for laboratory testing.
• Manufacturers must follow the current applicable standard and BIS implementation instructions.

Therefore, manufacturers planning new BIS certification should use IS 2593:2023 rather than relying on the withdrawn 1984 edition.

2. Applicable BIS Product Manual and Certification Requirements

BIS product-specific documentation and laboratory testing information must be referred to for certification of flexible cables for miner’s cap-lamps.

The following documents and references are relevant:

1. IS 2593:2023 – Flexible Cables for Miners’ Cap Lamps – Specification (Second Revision).
2. IS 2593:1984 – Earlier edition, now withdrawn.
3. Cables (Quality Control) Order, 2020.
4. Applicable BIS product manual and implementation instructions.
5. BIS Laboratory Information Management System (LIMS).

The certification assessment covers:

• Conductor material and construction.
• Insulation material.
• Central strain cord.
• Sheath material.
• Cable dimensions.
• Identification of cores.
• Laying up of cores.
• Electrical resistance.
• Mechanical properties.
• Resistance to heat.
• Resistance to burning.
• Moisture absorption.
• Chemical resistance.
• Resistance to oil.

Licence Scope

The licence scope must identify the product as:

Flexible Cables for Miners’ Cap-Lamps as per IS 2593:2023.

The proposed varieties and construction details should be declared by the manufacturer and assessed by BIS.

The final scope depends on the applicable standard, manufacturing facilities and testing capabilities.

3. What Are Flexible Cables for Miner’s Cap-Lamps?

<AsyncImage query=”miners cap lamp mining helmet LED lamp battery flexible connecting cable industrial mining equipment” aspectRatio=”16:9″ width=”100%” maxHeight={220}/>

Flexible cables for miner’s cap-lamps are special-purpose cables used to connect the lighting headpiece mounted on a miner’s helmet with the battery unit.

The cable allows electrical power to be transmitted from the battery to the lighting source while providing flexibility and suitable mechanical protection.

The original IS 2593:1984 specifically explains that the cable is used to connect the headpiece to the battery of a miner’s cap-lamp assembly.

Major Applications

These cables are associated with:

• Underground coal mining.
• Metal mining operations.
• Underground mineral extraction.
• Mining safety equipment.
• Miner’s cap-lamp assemblies.
• Battery-operated mining lighting systems.
• Replacement cables for existing cap-lamp assemblies.

Major Construction Components

A typical miner’s cap-lamp cable may consist of:

1. Copper conductor – provides electrical conductivity.
2. Insulation – electrically separates the conductors.
3. Central strain cord – provides additional mechanical support.
4. Sheath – provides external protection.
5. Cable identification – helps identify the cable and manufacturer.

The exact construction must comply with the applicable requirements of IS 2593:2023.

4. Technical Requirements Under IS 2593:2023

IS 2593 specifies technical requirements relating to conductor construction, insulation, central strain cord, sheath, dimensions and electrical and physical performance.

Some important requirements include:

A. Conductor Requirements

The conductor must comply with the applicable requirements specified in the standard.

Important parameters include:

• Conductor material.
• Conductor construction.
• Number of wires.
• Wire dimensions.
• Electrical resistance.
• Annealing characteristics, where applicable.

B. Insulation Requirements

The insulation must provide adequate electrical separation between the conductors.

Important characteristics include:

• Insulation material.
• Insulation thickness.
• Average insulation thickness.
• Minimum insulation thickness.
• Electrical insulation properties.
• Resistance to environmental conditions.

C. Central Strain Cord

The central strain cord is an important component of the cable construction.

It provides mechanical support and helps the cable withstand tensile stresses during handling and use.

The material and construction must comply with the relevant provisions of the standard.

D. Sheath Requirements

The sheath provides external mechanical and environmental protection.

The standard specifies requirements relating to:

• Sheath material.
• Sheath thickness.
• Average sheath thickness.
• Minimum sheath thickness.
• Colour identification.
• Overall cable dimensions.

E. Conductor Construction

The conductor construction must comply with the specified requirements.

The manufacturer must maintain suitable control over conductor dimensions and construction.

F. Identification of Cores

The cable cores must be identified according to the applicable requirements of the standard.

G. Laying Up

The conductors and other cable components must be assembled according to the prescribed construction requirements.

H. Electrical Characteristics

The cable must satisfy the applicable electrical performance requirements, including conductor resistance and insulation-related characteristics.

I. Physical and Mechanical Characteristics

The cable insulation and sheath must comply with the applicable physical and mechanical testing requirements.

These characteristics are important for maintaining cable performance under the intended mining operating conditions.

5. Testing Requirements for BIS Certification

Testing is one of the most important stages of BIS certification for flexible cables for miner’s cap-lamps.

The BIS Laboratory Information Management System identifies the following testing parameters for IS 2593.

The test list below includes the testing parameters displayed in BIS LIMS for the 1984 edition and the revised 2023 edition. The applicable clause references must be checked against the relevant edition before testing.

Sr. No.	Test Parameter	Applicable Reference
1	Conductor Test	Clause 3
2	Copper Conductor Resistance	Clause 3.1.2
3	Insulation Test	Clause 4
4	Central Strain Cord	Clause 5
5	Sheath Test	Clause 6
6	Construction – Conductor	Clause 7
7	Nominal Cross-Sectional Area of Conductor	Clause 7
8	Average Insulation Thickness	Clause 8.1
9	Minimum Insulation Thickness	Clause 8.1
10	Identification of Cores	Clause 9.1
11	Laying Up	Clause 10.1
12	Sheath Application	Clause 11.1
13	Average Sheath Thickness	Clause 11.2
14	Minimum Sheath Thickness	Clause 12.2
15	Colour of Sheath	Clause 11.3
16	Overall Diameter	Clause 12.1
17	Annealing Test	Clause 13.1(b)
18	Tensile Strength of Insulation	Clause 13.1(e)(1)
19	Elongation at Break of Insulation	Clause 13.1(e)(1)
20	Tensile Strength of Sheath	Clause 13.1(e)(1)
21	Elongation at Break of Sheath	Applicable physical test provision
22	Resistance to Heat	IS 2593:2023
23	Resistance to Burning	IS 2593:2023
24	Moisture Absorption Test	IS 2593:2023
25	Resistance to Chemical Action	IS 2593:2023
26	Copper Test	IS 2593:2023
27	Resistance to Oil	IS 2593:2023

The exact applicability and clause references must be confirmed against the current edition of IS 2593:2023.

A. Conductor Test

<AsyncImage query=”flexible copper electrical cable conductor strands close up industrial wire manufacturing” aspectRatio=”16:9″ width=”100%” maxHeight={170}/>

This test verifies the conductor material and construction.

The manufacturer must ensure that the conductor conforms to the specified requirements relating to material, construction and dimensions.

B. Conductor Resistance Test

This test determines the electrical resistance of the conductor.

The resistance value is important for evaluating electrical performance and ensuring conformity with the applicable requirements.

C. Insulation Thickness Test

This test verifies the average and minimum insulation thickness.

Suitable measuring instruments are used to evaluate the insulation dimensions.

D. Central Strain Cord Test

This test evaluates the central strain cord used in the cable construction.

The component must comply with the applicable material and construction requirements.

E. Sheath Thickness Test

The average and minimum sheath thickness are verified to ensure conformity with the standard.

F. Identification of Cores

This test verifies the identification and arrangement of cable cores.

G. Laying Up Test

The test evaluates the construction and arrangement of conductors and associated components within the cable.

H. Annealing Test

The annealing test evaluates the applicable physical characteristics of the copper conductor.

I. Tensile Strength and Elongation Test

These tests evaluate the mechanical properties of insulation and sheath materials.

Important parameters include:

• Tensile strength.
• Elongation at break.

J. Resistance to Heat Test

This test evaluates the behaviour of insulation and sheath materials when exposed to the prescribed temperature conditions.

K. Resistance to Burning Test

This test evaluates the burning characteristics of the cable according to the applicable test method.

L. Moisture Absorption Test

The test evaluates the behaviour of cable materials when exposed to specified moisture conditions.

M. Resistance to Chemical Action

This test evaluates the resistance of cable materials to the applicable chemical exposure conditions.

N. Copper Test

The copper test evaluates the applicable requirements relating to conductor material.

O. Resistance to Oil

This test evaluates the behaviour of cable materials under the prescribed oil exposure conditions.

The actual test procedures, acceptance criteria, test conditions and sample preparation requirements must be followed as specified in IS 2593:2023.

6. Sample Quantity Required for BIS Testing

The sample quantity for BIS certification must be determined according to the current product manual, applicable test methods and instructions of the designated laboratory.

The BIS LIMS listing identifies individual test parameters and test-wise charges but does not, in the publicly displayed information reviewed here, establish a complete universal sample quantity for initial licence testing.

Important Sample Submission Requirements

Manufacturers should prepare:

• Representative finished cable samples.
• Details of conductor material.
• Cable construction details.
• Insulation and sheath specifications.
• Central strain cord details.
• Cable dimensions.
• Product identification details.

The exact sample length and quantity should be confirmed with the concerned BIS Branch Office or testing laboratory before dispatch.

This is important because different tests may require different sample preparations and specimen lengths.

7. Product Grouping Guidelines Under IS 2593:2023

Product grouping is important for manufacturers producing different varieties of flexible cables for miner’s cap-lamps.

The manufacturer should declare the proposed varieties and construction details for BIS certification.

The following technical parameters are relevant while preparing the proposed licence scope.

A. Conductor Material

The conductor material must be identified according to the applicable standard.

B. Nominal Cross-Sectional Area

The conductor cross-sectional area must be specified for each proposed cable variety.

C. Conductor Construction

The manufacturer should provide details of the conductor construction and number of wires.

D. Insulation

The insulation material and thickness must be declared.

E. Central Strain Cord

Details of the central strain cord construction and material should be provided.

F. Sheath

The manufacturer should declare the sheath material, colour and thickness.

G. Overall Cable Diameter

The overall cable diameter should be identified for the proposed varieties.

Practical Example of Product Scope Declaration

Consider a manufacturer proposing the following varieties:

Model	Conductor Area	Insulation	Sheath
Model A	As per declared specification	Applicable construction	Applicable construction
Model B	As per declared specification	Applicable construction	Applicable construction
Model C	As per declared specification	Applicable construction	Applicable construction

The manufacturer should submit complete technical specifications and drawings for each variety.

Important: The exact grouping methodology and representative sample selection must be confirmed from the current BIS product manual. Do not assume that testing one conductor size automatically covers all other varieties.

8. Factory Laboratory Requirements

Manufacturers must maintain suitable testing facilities for ensuring conformity with IS 2593:2023.

The laboratory should be capable of conducting the applicable routine and other prescribed tests.

Major Laboratory Equipment

The following equipment is relevant to the testing parameters identified in BIS LIMS.

Equipment	Purpose
Vernier Calliper	Cable Dimensions
Micrometer	Insulation and Sheath Thickness
Measuring Microscope	Conductor and Insulation Dimensions
Kelvin Double Bridge	Conductor Resistance
Digital Resistance Meter	Electrical Resistance
Tensile Testing Machine	Tensile Strength and Elongation
Annealing Test Arrangement	Conductor Annealing
Hot Air Oven	Heat Resistance
Heat Testing Arrangement	Resistance to Heat
Burning Test Apparatus	Resistance to Burning
Water Bath	Moisture Absorption Testing
Chemical Resistance Test Arrangement	Resistance to Chemical Action
Oil Resistance Test Arrangement	Resistance to Oil
Suitable Electrical Testing Equipment	Applicable Electrical Tests

The above list is indicative and must be finalised according to the equipment requirements specified in the current standard and BIS product manual.

Laboratory Management Requirements

Manufacturers should establish:

• Suitable laboratory infrastructure.
• Trained testing personnel.
• Testing procedures.
• Equipment calibration arrangements.
• Equipment maintenance records.
• Inspection and testing records.
• Raw material testing arrangements.
• Finished product inspection procedures.

Calibration Requirements

All measuring and testing equipment must be maintained in working condition.

Calibration should be carried out at suitable intervals, and calibration records must be available during BIS inspection.

9. Scheme of Inspection and Testing (SIT)

Manufacturers must implement the applicable Scheme of Inspection and Testing and quality-control arrangements prescribed by BIS.

The manufacturer should establish a documented Quality Assurance Plan covering incoming materials, production inspection, routine testing and finished cable inspection.

A. Raw Material Inspection

The following raw materials should be controlled:

• Copper conductor.
• Insulation material.
• Central strain cord.
• Sheath material.

The manufacturer should maintain appropriate material specifications and supporting test certificates.

B. In-Process Inspection

In-process inspection should cover:

• Conductor construction.
• Conductor dimensions.
• Insulation application.
• Insulation thickness.
• Core identification.
• Laying up.
• Central strain cord arrangement.
• Sheath application.
• Sheath thickness.
• Overall cable diameter.

C. Finished Product Testing

Finished cable testing should include the applicable requirements for:

• Conductor resistance.
• Dimensional characteristics.
• Insulation performance.
• Sheath performance.
• Mechanical properties.
• Applicable physical and environmental tests.

D. Control Unit

The manufacturer should define the control unit in accordance with the applicable BIS product manual and Scheme of Inspection and Testing.

The control unit should enable traceability between production, raw materials, inspection and testing results.

E. Records to Be Maintained

Manufacturers should maintain:

1. Raw material inspection records.
2. Copper conductor test certificates.
3. Conductor resistance records.
4. Insulation material records.
5. Insulation thickness records.
6. Central strain cord inspection records.
7. Sheath material records.
8. Sheath thickness records.
9. Core identification records.
10. Laying-up inspection records.
11. Overall diameter records.
12. Tensile strength and elongation records.
13. Heat resistance test records.
14. Burning resistance test records.
15. Moisture absorption records.
16. Chemical resistance records.
17. Oil resistance records.
18. Calibration certificates.
19. Production batch records.
20. Non-conforming product records.

Note: The exact control unit definition, sampling frequency and recommended levels of control must be taken from the current BIS product manual and approved quality-control arrangements. The publicly available LIMS test list alone does not establish these frequencies.

10. Packing and Marking Requirements

After obtaining the BIS licence, manufacturers must ensure that flexible cables for miner’s cap-lamps are marked according to IS 2593:2023 and the applicable licence conditions.

A. BIS Standard Mark

The BIS Standard Mark must be applied according to the applicable marking provisions and licence conditions.

The ISI marking should include the relevant CM/L licence number as prescribed by BIS.

B. Manufacturer Identification

The cable or its packaging should carry the applicable manufacturer identification and product details required by the Indian Standard.

C. Product Identification

The manufacturer should ensure suitable identification of:

• Product name.
• Applicable Indian Standard.
• Cable construction details.
• Manufacturer’s name or trademark.
• Batch or production identification.
• BIS licence number.

D. Traceability Requirements

Manufacturers should maintain traceability between:

• Raw material consignments.
• Production batches.
• Finished cable reels.
• Inspection and testing reports.
• BIS marking records.

The exact marking format and location must follow the current edition of IS 2593 and BIS licence conditions.

11. Documents Required for BIS Certification of Flexible Cables for Miner’s Cap-Lamps

Manufacturers should prepare the following documents before submitting their BIS application.

A. Company and Legal Documents

• Certificate of Incorporation / Company Registration.
• PAN Card.
• GST Registration Certificate.
• Factory Address Proof.
• Authorised Signatory Details.
• Authorisation Letter or Board Resolution, wherever applicable.
• Company Profile.
• Ownership or Rent Agreement of Manufacturing Premises.

B. Manufacturing Documents

• Manufacturing Process Flow Chart.
• Detailed Manufacturing Process Description.
• Factory Layout Plan.
• List of Manufacturing Machinery.
• Production Capacity Details.
• Conductor Manufacturing Facilities.
• Insulation Extrusion Machinery Details.
• Central Strain Cord Manufacturing or Procurement Details.
• Sheathing Machinery Details.
• Raw Material Procurement Details.
• Production Process Control Details.

C. Product Technical Documents

• Product Technical Specifications.
• Cable Construction Details.
• Conductor Material Specifications.
• Nominal Cross-Sectional Area.
• Conductor Wire Dimensions.
• Insulation Material Specifications.
• Insulation Thickness Details.
• Central Strain Cord Specifications.
• Sheath Material Specifications.
• Sheath Thickness Details.
• Overall Cable Diameter.
• Core Identification Details.
• Cable Cross-Sectional Drawings.
• Product Photographs.
• Reel and Coil Packaging Details.

D. Quality Control Documents

• Quality Control Manual.
• Quality Assurance Plan.
• Scheme of Inspection and Testing.
• Control Unit Definition.
• List of Testing Equipment.
• Equipment Calibration Certificates.
• In-House Laboratory Details.
• Raw Material Inspection Procedure.
• Conductor Testing Procedure.
• Insulation Testing Procedure.
• Sheath Testing Procedure.
• Dimensional Inspection Procedure.
• Electrical Testing Procedure.
• Physical Testing Procedure.
• Non-Conforming Product Control Procedure.
• Test Records and Inspection Reports.

E. BIS Application Documents

• BIS Application Form and Declarations.
• Product Scope Details.
• Manufacturing Unit Details.
• Product Variety Details.
• Testing Facilities Details.
• Applicable Undertakings and Declarations.
• Prescribed Application and Processing Fee Payment Details.

The exact documentation requirements may vary depending on the manufacturing arrangement, proposed product varieties and applicable BIS instructions.

12. BIS Testing Charges for Flexible Cables for Miner’s Cap-Lamps

Testing charges depend on the applicable standard, laboratory, test scope and product construction.

The BIS Laboratory Information Management System (LIMS) displays the following laboratory-specific testing charges for IS 2593:1984.

Example: BIS LIMS Testing Charges

Test Parameter	Displayed Charge (₹)
Conductor Test	1,000
Copper Sulphate Test	2,000
Conductor Resistance Test	500
Insulation Test	500
Central Strain Cord Test	500
Sheath Test	1,000
Conductor Construction	500
Average Insulation Thickness	500
Minimum Insulation Thickness	500
Identification of Cores	0
Laying Up	0
Sheath Application	0
Average Sheath Thickness	500
Minimum Sheath Thickness	500
Colour of Sheath	1,000
Overall Diameter	1,000
Annealing Test	500
Insulation Tensile Strength	500
Insulation Elongation at Break	500
Sheath Tensile Strength	500

<text color=”secondary” size=”xs”>Source: BIS LIMS listing for IS 2593:1984, Laboratory Scope 1389. Charges are laboratory-specific, excluding taxes, and should not be treated as the current complete test quotation for IS 2593:2023.</text>

Other BIS Certification Costs

The overall certification cost may include:

Cost Component	Description
Application Fee	Prescribed BIS application fee
Factory Inspection	Applicable inspection expenses
Laboratory Testing	Product testing charges
Licence Fee	Annual BIS licence fee
Marking Fee	Applicable minimum and unit marking fee
Sample Transportation	Sample packing and transportation expenses
Laboratory Infrastructure	Testing equipment and calibration expenses
Consultancy Charges	Professional certification support, if engaged

The actual project budget should be prepared after confirming the current standard, testing scope and applicable BIS fee schedule.

13. Step-by-Step BIS Certification Process for Flexible Cables for Miner’s Cap-Lamps

The general process for obtaining BIS certification under Scheme-I is explained below.

Step 1 – Product Applicability Assessment

Confirm that the proposed product falls under the scope of flexible cables for miner’s cap-lamps covered by the applicable Quality Control Order.

Step 2 – Applicable Standard Review

Review IS 2593:2023 and the latest applicable BIS certification requirements.

Step 3 – Product Scope Assessment

Identify conductor material, cross-sectional area, insulation, central strain cord, sheath and other construction details.

Step 4 – Factory Infrastructure Assessment

Review conductor manufacturing facilities, insulation extrusion, stranding, laying-up, sheathing and laboratory arrangements.

Step 5 – Documentation Preparation

Prepare company documents, manufacturing details, product specifications, technical drawings, quality manuals and testing procedures.

Step 6 – BIS Application Submission

Submit the application through the applicable BIS certification portal along with the required documents and prescribed fees.

Step 7 – Factory Inspection

BIS officials inspect the manufacturing premises, production processes, quality-control arrangements and laboratory facilities.

Step 8 – Sample Drawal and Testing

Samples are selected and tested according to the applicable provisions of IS 2593:2023.

Step 9 – Test Report Evaluation

The test results are evaluated to establish conformity with the applicable Indian Standard.

Step 10 – Compliance and Clarifications

The manufacturer addresses any observations, testing issues or non-conformities identified during the certification process.

Step 11 – Grant of BIS Licence

After satisfactory evaluation of the application, factory inspection and testing requirements, BIS may grant the licence to use the ISI Standard Mark for the approved product scope.

Step 12 – Post-Licence Compliance

The manufacturer must maintain production quality, conduct routine testing, maintain inspection records and comply with BIS surveillance and licence renewal requirements.

14. Common Challenges in BIS Certification for Flexible Cables for Miner’s Cap-Lamps

Manufacturers may face several technical and documentation-related challenges during BIS certification.

1. Conductor Resistance Variation

Variations in conductor material or dimensions may affect electrical resistance.

2. Insulation Thickness Non-Conformity

Improper extrusion conditions may result in insulation thickness variations.

3. Central Strain Cord Issues

Incorrect material selection or improper positioning may affect the mechanical characteristics of the cable.

4. Sheath Thickness Failure

Inconsistent sheathing processes may lead to dimensional non-conformity.

5. Overall Cable Diameter Variation

Improper control of conductor arrangement, insulation and sheath application may affect overall cable dimensions.

6. Tensile Strength and Elongation Failure

Insulation and sheath materials may fail to meet the prescribed physical characteristics.

7. Heat Resistance Issues

Inadequate material performance may result in non-conformity during heat-related testing.

8. Burning Resistance Failure

Cable materials must comply with the applicable burning resistance requirements.

9. Moisture Absorption and Chemical Resistance

Inadequate material properties may affect the cable’s performance under specified environmental conditions.

10. Inadequate Laboratory Infrastructure

Manufacturers may not have suitable equipment for conductor resistance, dimensional verification, physical testing and environmental testing.

11. Incomplete Technical Documentation

Incomplete cable drawings, material specifications and construction details may create difficulties during BIS assessment.

12. Use of Withdrawn Standard

Manufacturers relying only on IS 2593:1984 may overlook the requirements of the revised IS 2593:2023.

A proper technical gap assessment before submitting the BIS application can help manufacturers avoid unnecessary delays and additional expenses.

15. How Qualitance India Can Help

Qualitance India provides professional BIS certification consultancy and regulatory compliance support to cable manufacturers and businesses seeking BIS certification in India.

For flexible cables for miner’s cap-lamps under IS 2593, our consultancy support includes:

• BIS certification applicability assessment.
• Review of IS 2593:2023 requirements.
• Review of applicable BIS product manual.
• Product scope and variety assessment.
• Review of conductor material specifications.
• Cable construction and technical drawing review.
• Manufacturing facility gap assessment.
• Laboratory infrastructure assessment.
• Preparation of Quality Control Manual.
• Preparation of Quality Assurance Plan.
• Development of inspection and testing procedures.
• Guidance on testing equipment and calibration.
• Raw material inspection documentation.
• Laboratory testing coordination.
• BIS application documentation.
• Assistance during BIS factory inspection.
• Support in resolving testing non-conformities.
• Assistance with BIS licence grant and post-certification compliance.

Our objective is to help manufacturers establish compliant manufacturing and quality-control systems and manage the BIS certification process efficiently.

Qualitance India – Improving Quality & Competence

Website: https://qualitanceindia.com

Email: info@qualitanceindia.com

Contact: +91 93106 15170

16. Frequently Asked Questions (FAQs)

Q1. Is BIS certification mandatory for flexible cables for miner’s cap-lamps in India?

Yes. BIS certification is mandatory for flexible cables for miner’s cap-lamps covered under the Cables Quality Control Order, 2020.

Q2. Which Indian Standard applies to flexible cables for miner’s cap-lamps?

The original standard was IS 2593:1984. It was revised to IS 2593:2023, which is the current edition.

Q3. What is the applicable BIS certification scheme?

Flexible cables for miner’s cap-lamps are covered under Scheme-I (ISI Mark Scheme) of BIS.

Q4. When did BIS certification become mandatory for these cables?

The Cables Quality Control Order, 2020, came into force on 1 August 2020.

Q5. What is the difference between IS 2593:1984 and IS 2593:2023?

IS 2593:2023 is the Second Revision of the original standard. It was published on 2 January 2024, and the 1984 edition was withdrawn on 4 April 2024.

Q6. What are the major tests required under IS 2593?

The important tests include conductor resistance, insulation thickness, central strain cord, sheath thickness, core identification, laying up, annealing, tensile strength, elongation, heat resistance, burning resistance, moisture absorption, chemical resistance and oil resistance.

Q7. What is the sample quantity required for BIS testing?

The exact sample length and quantity must be confirmed with the concerned BIS Branch Office or laboratory according to the current product manual and applicable test methods.

Q8. Is an in-house laboratory required for BIS certification?

Manufacturers must establish suitable testing arrangements as prescribed by the current BIS product manual and applicable certification requirements.

Q9. Is testing required for conductor resistance?

Yes. Conductor resistance is an important electrical characteristic and must comply with the applicable requirements.

Q10. What is a central strain cord?

A central strain cord is a mechanical support component incorporated in the cable construction to provide additional strength and help withstand tensile stress.

Q11. Is BIS certification applicable to imported miner’s cap-lamp cables?

Covered imported products must comply with the applicable BIS certification requirements. Eligible foreign manufacturers may apply under the Foreign Manufacturers Certification Scheme (FMCS).

Q12. Can a manufacturer apply for BIS certification under IS 2593:1984 now?

Manufacturers should apply against the current edition, IS 2593:2023, because the 1984 edition was withdrawn on 4 April 2024.

Q13. Does BIS certification replace DGMS approval requirements?

No. BIS product certification and DGMS approval are separate regulatory requirements. Where applicable, manufacturers and suppliers must evaluate the relevant DGMS requirements independently.

Q14. Who can assist with BIS certification for flexible cables for miner’s cap-lamps?

Qualitance India provides consultancy support for product scope assessment, technical documentation, laboratory readiness, testing coordination, factory inspection preparation and BIS certification.

Conclusion

BIS certification for flexible cables for miner’s cap-lamps is an important regulatory requirement for manufacturers supplying covered products in the Indian market.

The certification process requires careful attention to conductor construction, insulation, central strain cord, sheath dimensions, electrical resistance, mechanical properties and environmental performance.

With the revision of IS 2593:1984 to IS 2593:2023, manufacturers must ensure that their product specifications, testing arrangements and quality-control systems are aligned with the current standard.

Proper technical documentation, laboratory readiness and product testing can help manufacturers complete the BIS certification process efficiently.

For professional assistance with BIS Certification for Flexible Cables for Miner’s Cap-Lamps, contact Qualitance India.

Qualitance India – Improving Quality & Competence

Website: https://qualitanceindia.com

Email: info@qualitanceindia.com

Phone: +91 93106 15170

 

Free PDF Download

BIS Certification Readiness Checklist 2026

• Documents, testing & factory requirements in one place
• Covers ISI Mark, CRS, FMCS & Hallmarking
• Tick-box format — share it with your team