Specifications

63230-507-201A1 Power Meter 750

03/2007 Section 2—Safety Precautions

SECTION 2— SAFETY PRECAUTIONS

BEFORE YOU BEGIN This section contains important safety precautions that must be followed

before attempting to install, service, or maintain electrical equipment.

Carefully read and follow the safety precautions outlined below.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe

electrical work practices. In the USA, see NFPA 70E.

• Only qualified electrical workers should install this equipment. Such

work should be performed only after reading this entire set of

instructions.

• NEVER work alone.

• Before performing visual inspections, tests, or maintenance on this

equipment, disconnect all sources of electric power. Assume that all

circuits are live until they have been completely de-energized, tested,

and tagged. Pay particular attention to the design of the power system.

Consider all sources of power, including the possibility of backfeeding.

• Turn off all power supplying the power meter and the equipment in

which it is installed before working on it.

• Always use a properly rated voltage sensing device to confirm that all

power is off.

• Before closing all covers and doors, carefully inspect the work area for

tools and objects that may have been left inside the equipment.

• Use caution while removing or installing panels so that they do not

extend into the energized bus; avoid handling the panels, which could

cause personal injury.

• The successful operation of this equipment depends upon proper

handling, installation, and operation. Neglecting fundamental

installation requirements may lead to personal injury as well as damage

to electrical equipment or other property.

• NEVER bypass external fusing.

• NEVER short the secondary of a PT.

• NEVER open circuit a CT; use the shorting block to short circuit the

leads of the CT before removing the connection from the power meter.

• Before performing Dielectric (Hi-Pot) or Megger testing on any

equipment in which the power meter is installed, disconnect all input

and output wires to the power meter. High voltage testing may damage

electronic components contained in the power meter.

• The power meter should be installed in a suitable electrical enclosure.

Failure to follow this instruction will result in death or serious injury