Electrical Safety

Electrical Single Line Diagram (SLD)

Design of Lightning Protection System (LPS)

Thermography survey report

Earth pit Resistance test report (ER)

Insulation Resistance test report (IR)

Transformer oil test report

Preventive maintenance program and schedule

Electrical Safety training initiation documents

People & Property Safety

Lightning Protection System (LPS)

The STONYTRACK Facility Protection System is a comprehensive, coordinated approach to complete Facility Protection from

lightning and transient currents. It incorporates nationally and internationally recognized system designs to completely protect

facilities from all of harmful effects of lightning. We are providing Lightning Protection Design as per NFPA-780, Products

Supply and Installation, Engineering and Education Services.

LPS DESIGN SERVICES ENGINEERING SERVICES

Every year there are 2,500-3,000 million lightning ground strikes affecting 30% of our country

Businesses & causing over $75 million in damage and more than 200 loss of life in Bangladesh

STONYTRACK’s Technical services people are real-

world experience and a scientific, engineering process

to design LPS that meet or exceed any site’s LPS

requirements. With years of combined engineering

experience our team provides unmatched expertise in

all aspects of LPS for your site and facility.

We are dedicated to engineering extraordinary solutions

for our clients. Keep up-to-date on STONYTRACK’s

White Papers, Specifications and Drawings by clicking

on the icons below. Leading the industry with our

comprehensive total site and facility protection systems

and solutions, STONYTRACK continues to heighten the

industry standard with our innovative products and

solutions.

Electrical Single Line Diagram (SLD)

To meet NFPA 70E requirements, STONYTRACK can conduct a comprehensive site survey to

develop single-line diagrams for your facility or to update existing diagrams. Including:

Inventory of equipment

Verify existence of as-built drawings and that they are adequately available

Verify process is in place that ensures the as-built drawings are maintained in a current

condition

Confirm loads connected to emergency/standby feeders

Verify potential single points of failure

Evaluate design redundancy of critical systems (N, N+1, N+2...) and whether all critical

equipment can be maintained without a shutdown

Report that outlines the findings by site along with recommended actions

Update customer-provided single-line drawings down to the 480V Distribution Switchboards

Provide a copy of single-line electrical diagram in AutoCAD format

Post as-built drawings at each facility

An up-to-date single-line diagram is vital for a variety of service activities including:

Short circuit calculations Coordination studies Load flow studies Safety evaluation studies All other engineering studies Electrical safety procedures Efficient maintenance

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Thermography Survey Report

Earth Pit Resistance Test (ER)

Insulation Resistance Test (IR)

Transformer Oil Test Report

STONY TRACK LTD.

2/12 (5th

Floor), Block-B, Humayan Road, Mohammadpur Dhaka-1207, Bangladesh Phone: +88 02 58154542, Hot Line: +880 1766066641, Email: info@stonytrack.com

www.stonytrack.com

By detecting areas of abnormal temperature, STONYTRACK Infrared Thermography Surveys include:

Diagnosing problem areas and determining their severity in electrical systems, mechanical equipment, roofs and building envelopes.

Pinpointing non-uniformity of temperature within process applications to resolve variances and deficiencies.

Realizing substantial and quantifiable operational cost savings through the application of infrared imaging techniques.

Training in-house thermographs’ to ensure they remain up-to-date on the latest technological advances in infrared applications.

Severity and impact ratings for each finding.

On-site report delivery for immediate action.

Summary of findings, equipment inventory listing, trending and business impact analysis, all available through our online data management system.

If the live wire touches the grounded case then the circuit is effectively shorted

and fuse will immediately blow. When the fuse is blown then the dangerous

voltages are away.

To Safety for Human life / Building /Equipment

To Protect Over voltage

To Stabilization Voltage

The earth is the most omnipresent conductive surface, and so it was

adopted in the very beginnings of electrical distribution systems as a nearly

universal standard for all electric systems.

STONYTRACK Insulation Resistance (IR) Includes: 1. IR Value for Electrical Apparatus & Systems 2. IR Value for Transformer 3. IR Value for Tap Changer 4. IR Value for Electric motor 5. IR Value for Electrical cable and wiring 6. IR Value for Transmission / Distribution Line 7. IR Value for Panel Bus 8. IR Value for Substation Equipment 9. IR Value for Domestic /Industrial Wiring 10. Required Precautions

STONYTRACK Oil Test Includes:

Resistance Resistivity

Capacitance Power Factor

Tan-delta Watt-loss

Dielectric Constant Temperature