Novatech Bitronics M87X Series, Manual

Page: 15 / 184

ML0021 August 15, 2018
xiv
Copyright 2018 Bitronics, LLC
Voltage and current connections should be made using insulated crimp terminations to
ensure that terminal block insulation requirements are maintained for safety. To ensure
that wires are correctly terminated, the correct crimp terminal and tool for the wire size
should be used.
Before energizing the equipment, it must be grounded (earthed) using the protective
ground (earth) terminal, or the appropriate termination of the supply plug in the case of
plug connected equipment. Omitting or disconnecting the equipment ground (earth) may
cause a safety hazard.
The recommended minimum ground (earth) wire size is 2.5 mm
2 (#12 AWG), unless
otherwise stated in the technical data section of the product documentation.
Before energizing the equipment, the following should be checked:
1.
Voltage rating and polarity
2.
CT circuit rating and integrity of connections
3.
Protective fuse rating
4.
Integrity of ground (earth) connection ( where applicable )
5.
Equipment operating conditions
The equipment should be operated within the specified electrical and environmental limits.
Current transformer circuits
Do not open the secondary circuit of a live CT since the high voltage produced may be
lethal to personnel and could damage insulation.
Insulation and dielectric strength testing
Insulation testing may leave capacitors charged up to a hazardous voltage. At the end of
each part of the test, the voltage should be gradually reduced to zero, to discharge
capacitors, before the test leads are disconnected.
Removal and insertion of modules
All M87x active circuitry is located on removable modules. Unless a Module is specifically
intended for Hot Swap (see documentation), it must not be inserted into or withdrawn from
equipment while it is energized, since this may result in damage. Hot Swap modules may
be installed and removed under power. Refer to the appropriate section or manual to
determine if the particular module is Hot Swap compatible.
For all other modules,
remove all power from the unit before installing or removing any module.
All Hazardous Voltages MUST be removed from the M87x before removing or