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Composite Pole EPZ Assessment - Coggle Diagram
Composite Pole EPZ Assessment
Test Arrangements
T1: timber pole with EPZ
C1: composite pole with EPZ
C2: composite pole without EPZ
Electrical Measurements
Applied voltage
Hand to foot voltage
Simulated body current
Cluster bar voltage
Pole leakage current
EPZ bonding current
Earth electrode current
Environmental Conditions
Dry baseline
Controlled wetting
Inland pollution
Coastal pollution
Standardised artificial pollution
ESDD and NSDD
Test Equipment
Controlled test supply
Voltage probes
Current probes
Simulated body resistor
Data system
Environmental application equipment
Safety Controls
Controlled access area
High voltage exclusion zone
Remote operation
Emergency isolation
Main and local earths
No person on the pole during testing
Analysis
Ohm’s law
Comparison ratios
Scenario modelling
Mean and maximum results
Standard devi
Decision Criteria
C1 compared with T1
C2 compared with T1
Dry compared with wet
Pollution sensitivity
Retain, modify or review EPZ
Formal ESBN technical approval