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In pole mounted substation,what is the ground clearance for transformer?
2 Metre
4 Metre
24 Metre
44 Metre
44 Metre
According to the Indian Electricity Rules and safety standards for distribution infrastructure, the minimum ground clearance for a transformer mounted on an H-pole or single-pole structure is 2.44 meters. This distance is measured from the lowest point of the transformer tank to the ground level to ensure safety for pedestrians and prevent unauthorized access to live components.
According to the Indian Electricity Rules and safety standards for distribution infrastructure, the minimum ground clearance for a transformer mounted on an H-pole or single-pole structure is 2.44 meters. This distance is measured from the lowest point of the transformer tank to the ground level to ensure safety for pedestrians and prevent unauthorized access to live components.
HminтАЛ=2.44┬аm тАФ Minimum vertical clearance mandated by safety standards
The clearance serves as a safety buffer zone, creating a vertical isolation distance between high-voltage apparatus and ground-level personnel. By maintaining this minimum height of 2.44 meters, the design accounts for standard reach heights and ensures that accidental contact with the energized tank or bushings is prevented.
The 2.44m requirement is a safety mandate per Indian Electricity Rules.
This height ensures safety against accidental human contact.
The measurement starts from the base of the transformer tank or the lowest live part.
Higher clearances may be required based on the voltage level and proximity to public spaces.
Prevents accidental touch by unauthorized persons
Ensures compliance with statutory safety regulations
Facilitates easier inspection and maintenance
Increases the height of the mounting structure
Requires stronger pole foundations due to higher center of gravity
Rural electrification projects
Distribution network in suburban areas
Small-scale industrial load centers
In some jurisdictions or specific high-voltage configurations, regulations may mandate higher clearances than 2.44 meters.
Option A (2m) is considered too low for public safety standards.
Option B (4m) is often associated with clearance for overhead lines over roads, not specifically the transformer body mounting height.
D is correct тАФ The minimum ground clearance required for a pole-mounted transformer is 2.44 meters to ensure human safety.
Always verify safety clearance values against the latest CEA (Central Electricity Authority) guidelines as they are periodically updated for enhanced safety.