POWER & DISTRIBUTION TRANSFORMERS · SINCE 2007+91 93310 15264
Transformer core-coil assembly at the OSTL works in Howrah

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QUALITY & TESTING

Confidence starts
with the standard.

Quality credentials and routine testing, clearly presented. A framework for the specifications that matter to your project.

Explore our approach

Our Howrah works

QUALITY & ROUTINE TESTINGStandards before assumptions.

QUALITY CREDENTIALS

A standards-led approach.

OSTL is ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certified, and BIS licensed under IS 1180. Copies available on request.

Management system

ISO 9001:2015

Quality management

Management system

ISO 14001:2015

Environmental management

Management system

ISO 45001:2018

Occupational health & safety

Product standard

BIS IS 1180

Distribution transformer standard

BIS licensed in five major transformer categories. Licences acquired in all five categories in 2020.

Standards are shown as text and original line graphics, not reproduced certificates or certification seals.

IS 1180IS 2026ROUTINE TESTING FRAMEWORK

ROUTINE TESTING

Clear standards.
Clear requirements.

Routine tests are carried out per IS 1180 / IS 2026.

Include any project-specific testing requirements in your enquiry. Discuss the applicable standards, required documentation and any inspection arrangements with OSTL before placing an order.

Discuss testing requirements

FOR YOUR PROJECT

Make the technical brief
work harder.

Be explicit about the standards, testing and documentation your project requires.

Define the specification

State the required rating, voltage and applicable project specifications.

Confirm the test requirements

List any additional testing or inspection requirements for OSTL to confirm.

Align the project details

Share documentation needs and your requested inspection and dispatch timeline.

LET’S TALK ABOUT YOUR PROJECT

A clear brief.
A standards-led conversation.

Share your project-specific testing and documentation requirements.

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