Commissioning

List of Checks and Inspections

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E or CSA Z462 or local equivalent. This equipment must only be installed and serviced by qualified electrical personnel. Turn off all power supplying this equipment before working on or inside equipment. Always use a properly rated voltage sensing device to confirm that power is off. Put back all devices, doors, and covers before turning on power to this equipment. Repair the installation immediately if an insulation fault occurs during operation. Failure to follow these instructions will result in death or serious injury.

When starting up new equipment, or following lengthy downtime, a general check takes a few minutes. Such a check helps to remove the risk of a malfunction due to error or oversight.

Many malfunctions result from non-observance of the commissioning instructions or lack of knowledge concerning the equipment and/or switchgear procedures. Schneider Electric instruction sheets, available online, contain clear instructions for operators or maintenance personnel on how to correct malfunctions. The PDF files may be downloaded from the Schneider Electric website.

The following table indicates the checks and inspections to be performed according to the event:

A: Insulation and Dielectric Strength Tests

CAUTION
HAZARD OF EQUIPMENT DAMAGE Insulation and dielectric strength tests must only be carried out by qualified electrical personnel. Failure to follow these instructions can result in injury or equipment damage.

Insulation and dielectric strength tests are carried out before the switchboard is delivered. These tests are subject to the currently applicable standards.

Prior to running the tests, it is absolutely necessary to:

• Disconnect all the electrical auxiliaries of the device (MX, MN).

• Remove the long-time rating plug on the MicroLogic trip units.

Removal of the rating plug disconnects the voltage measurement input.

B: Inspection of the Switchboard

Check that the devices are installed:

• In a clean environment, where no waste has been left behind from assembling the equipment (for example, wiring, tools, shavings, metallic particles).

• In a properly ventilated switchboard (unobstructed ventilation grilles).

C: Compliance With the Installation Diagram

Check that the devices conform with the installation diagram:

• Identification of the feeds on the front of each device.

• Rating and breaking capacities (indicated on the rating plate).

• Identification of the trip unit (type, rating).

• Presence of additional functions (external current sensor, control or indication auxiliaries, locking, sealing).

• Protection settings.

• MicroLogic trip unit: visually check the position of the dials or the main settings.

• Identification of the protected circuit marked on the front of each device.

D: Inspection of Mechanical Equipment

• Check the following body parts (see detailed topic for more information):

  • Case

  • Are chute filters

  • Main contacts

• Check the mounting and mechanical strength of devices in the switchboard and of power connections.

• Check the mounting and mechanical strength of the following auxiliaries and accessories on the devices:

  • Installation accessories (for example, terminal shields, escutcheons)

  • Auxiliary circuit connections (see detailed topic for more information)

  • Chassis and its sliding connections (see detailed topic for more information)

  • Terminal blocks

  • Electrical auxiliaries

• Check the tightening of power connectors and tighten any loose connections (see detailed topic for more information).

• Check the arc chute filters (see detailed topic for more information).

E: Check Connections

Check the tightening torque of the power connections and auxiliary circuit connections, as described in the instruction sheets.

F: Mechanical Operation

• Check the following mechanical operations:

  • Mechanical opening and closing

  • Electrical opening

  • Tripping with the push-to-trip button

  • Resetting

  • Complete closing of device poles

• Check the locking and unlocking of locking accessories (for example, padlocks and keylocks).

• Check the auxiliary wiring and insulation of all auxiliaries (see detailed topic for more information).

• Check the correct operation of the wired and wireless indication auxiliaries (see detailed topic for more information).

• Check the service life of all auxiliaries.

G: Operation of Trip Units and Communication System

• Check the correct operation of the trip unit of each device, by using the respective user guide.

• Check the communication module and accessories (optional) (see detailed topic for more information).

• Test device control and uploading of contact status.

• Test the uploading of the chassis position contacts and address synchronization between BCM ULP and IO module.

• Test data writing to the MicroLogic trip unit via the communication network.

H: Check Pairing of Wireless Devices with Gateway or Panel Server

Check that wireless communication with gateway or panel server is working correctly:

• For PowerTag Energy, LED is blinking green each time data is sent (every 5 seconds by default).

• For wireless indication auxiliaries, LED is blinking green each time data is sent (every 8 hours, or when status changes).

I: Check Communication

Check that the communication through the communication network works correctly. Refer to DOCA0093••ULP (Universal Logic Plug) System - User Guide.

J: Clean Equipment

To avoid dust deposits that could affect the circuit breaker mechanical operation, clean the circuit breakers when performing maintenance:

• For non-metallic parts: always use a dry cloth. Do not use cleaning products.

• For metallic parts: preferably use a dry cloth. If a cleaning product must be used, do not apply or splash the product onto non-metallic parts.