Huawei PDU8000 User Manual page 11

PDU8000 Isolation Transformer Cabinet
User Manual

The risks are particularly high if conductive materials have entered the channel in the
isolation transformer, relevant auxiliary equipment, or component.

Potential risks include damage to the installed isolation transformer and subsequent power
derating and power failure of loads at critical positions.

Huawei uses IP21 standard in isolation transformer design to ensure that live parts are not
in contact with the exterior and that no foreign objects will enter the equipment during
operation.

However, when the isolation transformer baffle plate and cover are open and the electrical
wiring terminals are exposed by the electrical contractor or installation personnel who are
setting up a power line connection, Huawei cannot ensure that no foreign object will enter
the equipment during onsite installation.

It is common to have someone working in the same room as the isolation transformer
during onsite installation. Sometimes some people may be working above the isolation
transformer and relevant auxiliary equipment or components.

To avoid serious damage to the onsite operation, property hazards, and personal injury
including fatal injury, it is the responsibility of each equipment manager or construction
manager to ensure that no foreign object enters the isolation transformer, relevant auxiliary
equipment, or components.
Issue 01 (2019-03-07) Copyright © Huawei Technologies Co., Ltd.
1 Safety Precautions
5