Megger DELTA4000, Instruction Manual, Page: 20 / 74

M
AVTMDELTA4000-EN Rev 6 April 2018
12
Safety Features
Safety features include;
§
External hand plus foot (second external hand switch is optional)
interlock switches must be closed to energize high-voltage circuit.
§
Dual ground required to energize high-voltage circuit.
§ Circuit breaker for short-circuit protection.
§ All controls at ground potential.
§ Over-voltage protective devices prevent damage to test set in the event
of specimen breakdown.
§
Low-voltage inputs are grounded when the test set is turned off or
between measurements.