Inspect The Network - Check And Mark Wiring Compliance - ABB CPS3200U Product Manual

Remote power system 48 vdc input, +-190 vdc output converter/limiter system

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7. Inspect the Network - Check and Mark Wiring Compliance

The CPS3200U +/-190V system is classified as an A3 circuit tested according to GR-1089-CORE Issue

6. As such, each location in the network where the output is available to be touched must be

protected and marked as an A3 voltage.

Step

Is accessibility to the circuit throughout the network consistent with A3 requirements?

Voltage Class

Is the 5-pin protector marked as a special circuit?

Does the 5-pin protector protect each pair to a level corresponding to a CommScope 3C*EW Gas tube primary pro-

tector? This protector has a

700 Volts. Protectors with a lower voltage breakdown rating will be problematic.

Page 35

General public

A 1

Restricted access

A 3

Inaccessible

Table 7-1 accessibility to continuous class –A voltage

voltage breakdown range of 265-465 Volts and an impulse spark over range of <265-

Action

Employees

Exposed

Inaccessible

Craftsperson's

Exposed

Restricted access

( Exceptions )

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