High Tension Line Proximity Check

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HT Line Check

High Tension Line Proximity Check

Check distance to nearest power line · Danger (0-5m), High Risk (5-10m) & Caution (10-20m) zones · Railway Line Check

Click anywhere on the map to check HT line proximity
HT Line Proximity Zones
Danger (0-5m)
High Risk (5-10m)
Caution (10-20m)
Safe (>20m)

Checking HT line proximity...

HT Line Proximity Status
Zone Status -
Distance to HT Line -
Voltage -
Feeder Name -
Substation -
Coordinates -

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Complete Guide to High Tension Line Regulations

Why Check HT Line Proximity?

Properties near high tension power lines are subject to strict regulations under the Indian Electricity Rules 1956 and Central Electricity Authority Safety Regulations. Proximity to HT lines can affect construction approvals, safety, and property value.

Key Considerations
  • Electrical safety clearances are mandatory by law
  • TSSPDCL clearance may be required for construction near HT lines
  • Electromagnetic field (EMF) exposure concerns
  • Property value may be affected by proximity to power lines
  • Future land use restrictions near transmission corridors

Indian Electricity Rules 1956 - Clearance Requirements

The Indian Electricity Rules 1956 specify minimum clearances for electrical lines from buildings and other structures.

Rule 80 - Horizontal Clearance from Buildings
Voltage Level Minimum Horizontal Clearance
Up to 11 kV 1.2 meters
11 kV - 33 kV 2.0 meters
Up to 33 kV 3.7 meters
Extra High Voltage 3.7m + 0.3m per additional 33kV
Rule 77 - Ground Clearance
Location High Voltage Clearance Extra High Voltage
Across street 6.1 meters 6.1m + 0.3m per additional 33kV
Along street 5.8 meters 5.8m + 0.3m per additional 33kV
Elsewhere 5.2 meters 5.2m + 0.3m per additional 33kV

Understanding HT Line Proximity Zones

For practical safety and construction planning, we categorize proximity into the following zones:

Danger Zone (0-5 meters)

Extremely hazardous proximity to high tension power lines.

  • All construction is strictly prohibited
  • Risk of electrical arcing and electrocution
  • No permanent or temporary structures allowed
  • Even maintenance work requires TSSPDCL shutdown
  • Trees and vegetation must be cleared
Status: Construction Prohibited - Immediate Safety Hazard
High Risk Zone (5-10 meters)

Very close proximity requiring special approvals.

  • Construction requires special clearance from TSSPDCL
  • Building height restrictions strictly enforced
  • Safety barriers and warning signs mandatory
  • Not suitable for residential construction
  • High EMF exposure levels
Status: Special Approval Required - Very High Risk
Caution Zone (10-20 meters)

Moderate proximity requiring careful consideration.

  • Consult TSSPDCL before construction
  • Building height may be restricted
  • Moderate EMF exposure
  • Construction equipment must maintain clearance
  • Insurance considerations may apply
Status: Caution - Consult TSSPDCL
Safe Zone (Beyond 20 meters)

Generally safe distance from high tension power lines.

  • Standard building regulations apply
  • Minimal EMF exposure
  • Normal construction permitted
  • Property values not significantly affected
  • Other clearances (ASI, etc.) may still apply
Status: No HT Line Restrictions

TSSPDCL Clearance Process

If your property is within 20m of an HT line, it's advisable to obtain clearance from TSSPDCL.

Required Documents:
  • Land ownership documents (Pahani, Sale Deed)
  • Approved building plan
  • Site plan showing distance from HT line
  • Survey sketch of the property
  • Application form with prescribed fee
Process Steps:
  • Submit application to local TSSPDCL office
  • Site inspection by TSSPDCL engineers
  • Review of building plans for clearance compliance
  • Clearance issued with conditions (if approved)
  • Processing time: 15-30 days

Health and Safety Considerations

Distance from HT Line EMF Level Health Consideration Recommendation
0-10m High Elevated exposure concern Avoid residential use
10-20m Moderate Some exposure Consider alternatives
20-50m Low Minimal concern Generally acceptable
>50m Very Low No significant concern Recommended distance

Frequently Asked Questions (FAQs)

According to Indian Electricity Rules 1956, minimum horizontal clearances vary by voltage: 1.2m for up to 11kV, 2.0m for 11-33kV, and 3.7m for higher voltages. For practical safety and residential construction, we recommend maintaining at least 20 meters distance from HT lines.

Building near HT lines is restricted. Within 5m (Danger Zone), construction is prohibited. Between 5-10m (High Risk), special clearance from TSSPDCL is required. Between 10-20m (Caution), consult TSSPDCL. Beyond 20m is generally safe for residential construction with standard approvals.

Proximity to high voltage power lines exposes residents to electromagnetic fields (EMF). While scientific research is ongoing, some studies suggest potential health concerns with prolonged exposure. Maintaining at least 20 meters distance significantly reduces EMF exposure and provides peace of mind for residential properties.

To obtain TSSPDCL clearance:
  1. Apply to the local TSSPDCL office
  2. Submit construction plans and land documents
  3. Site inspection by TSSPDCL engineers
  4. Clearance issued with conditions (if approved)
  5. Processing typically takes 15-30 days

Yes, HT line proximity can significantly impact property values:
  • Within 20m: 15-25% lower value
  • 20-50m: 5-15% lower value
  • Beyond 50m: Minimal impact
  • Visual impact of transmission towers also affects value
  • Underground cables have less impact on property values

  • High Tension (HT): Voltage above 1000V (typically 11kV, 22kV, 33kV, 110kV, 220kV, 400kV)
  • Low Tension (LT): Voltage below 1000V (typically 230V/415V for residential)
  • HT lines require greater clearance distances
  • HT lines are usually carried on larger poles/towers
  • This tool specifically checks proximity to HT feeder lines (11kV and above)

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