Vertiv UL891 Istruzioni di installazione e manutenzione

UL891 Switchboard

Installer/User Guide

Technical Support Site

If you encounter any installation or operational issues with your product, check the pertinent section of this

manual to see if the issue can be resolved by following outlined procedures.

Visit https://www.vertiv.com/en-us/support/ for additional assistance.

The information contained in this document is subject to change without notice

and may not be suitable for all applications. While every precaution has been

taken to ensure the accuracy and completeness of this document, Vertiv

assumes no responsibility and disclaims all liability for damages result from use

of this information or for any errors or omissions.

Refer to local regulations and building codes relating to the application,

installation, and operation of this product. The consulting engineer, installer,

and/or end user is responsible for compliance with all applicable laws and

regulations relation to the application, installation, and operation of this product.

The products covered by this instruction manual are manufactured and/or sold

by Vertiv. This document is the property of Vertiv and contains confidential and

proprietary information owned by Vertiv. Any copying, use, or disclosure of it

without the written permission of Vertiv is strictly prohibited.

Names of companies and products are trademarks or registered trademarks of

the respective companies. Any questions regarding usage of trademark names

should be directed to the original manufacturer.

Vertiv™ UL891 Switchboard Installer/User Guide

TABLE OF CONTENTS

1 Important Safety Instructions 1

2 Introduction 1

2.1 General Information 1

2.2 Product Overview 1

2.3 Design Features and Components 3

2.4 Typical Switchboard Layouts 4

2.5 Typical Customer Connections 5

2.6 Typical Ground Layout 8

2.7 Technical Information 10

2.8 Labels and Markings 10

3 Packaging and Handling 13

3.1 Receiving 13

3.2 Handling 13

3.2.1 Unloading from Truck 13

3.2.2 Unloading off Pallet 14

3.3 Storage 20

4 Installation 21

4.1 Pre-Installation Preparation 21

4.2 Anchoring 21

4.3 Considerations for Installation 23

4.4 Joining Sections 24

4.5 Transformer Close Coupled Connection 26

4.6 Electrical Connections 27

4.6.1 Fish Plates 27

4.6.2 Ground Bus Connection 35

4.6.3 Cable Connections 36

4.6.4 Busway 38

5 Energization 39

5.1 Pre-Energization 39

5.1.1 Pre-Energization Tests 39

6 Maintenance 41

6.1 Setting Up a Maintenance Schedule 41

6.2 Maintenance Inspections 41

7 Torque Table 43

8 Accessories 45

8.1 OHLD Installation 46

8.2 OHLD Operation 47

Vertiv™ UL891 Switchboard Installer/User Guide

Appendices 49

Appendix A: Technical Support and Contacts 49

Appendix B: Submittal Drawings 50

Vertiv™ UL891 Switchboard Installer/User Guide

1 Important Safety Instructions

All information provided in this instruction manual and additional referenced documentation should be reviewed and

acknowledged by all personnel responsible for the use of the equipment. All models represented in this manual are for

illustrative purposes only, due to the individual specifications associated with each customer. Vertiv will not assume

responsibility for actual use establish by the models.

Proper installation, operation, and maintenance are critical to the performance of the equipment.

Correct operating conditions in terms of input voltage, current and the fault capacities must be ensured at the time of

installing UL891 switchboard.

Refer ANSI C37.20.1 for abnormal operational conditions.

General instructions

•Read all the instructions included in this IUG before working with the equipment.

•Store and keep this IUG to ensure proper commissioning and maintenance to ensure the prolong use of the

equipment.

•Install the switchboard based on the design limitations as given in this IUG. The design limitations are presented

on the main nameplate and should never be installed in applications that exceed the limits presented by the

nameplate.

•Always follow standard safety protocols set forth by your company.

•Turn off all the power sources and de-energized the equipment before removing the covers and opening of

doors of the equipment. All components should be locked out and tagged in line with standard protocol and

ANSI Standard Z244.1 Control of Hazardous Energy – Lockout/Tagout.

•Wear PPEs while working on the switchboard.

•Only Veritv qualified personnel should work on the Switchboard.

•If additional information is needed, please contact your Vertiv representative.

Vertiv™ UL891 Switchboard Installer/User Guide

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Vertiv™ UL891 Switchboard Installer/User Guide

2 Introduction

2.1 General Information

Vertiv™ UL891 Switchboard range offers a fully customizable solution that improves efficiency, saves space, and enhances

operator safety. The switchboard UL891 is engineered with influence from our proven IEC 60349-1 technology that has been

fully tested and certified to comply with UL891 standards. The Switchboard range also includes power distribution units and

remote power panels.

Features of UL891 Switchboard:

•Fully customized and design for flexibility.

•Type tested arc prevention busbar systems.

•Equipped with Type 1 gasket, and Type 3R enclosures.

•Switchboard ampacity to 6000A.

•Segregation available up to Form 4 type 7 for enhanced user safety and protection.

•Molded case circuit breaker (MCCB) UL489 and air circuit breaker (ACB) UL1066 large selection from main

breaker manufacturers.

•Integration of TVSS, PQM’s, Protective Relays and Controls based on site specific needs.

2.2 Product Overview

Compact

Vertiv manufactures one of the most compact switchboard designs in the North American market. UL891 Switchboard packs

more power into a smaller footprint, with our flexible modular design offering a standard shallow depth of 30.2 in. This

innovative design helps our customer to accommodate the demand for higher power capacity without losing valuable real

estate.

Safe and Reliable

Built and tested with IEC influence, the design of our UL891 Switchboard is focused on achieving the highest standard of

performance reliability and operator safety. Internal segregation as outlined by IEC 61439-2 reduces operator risk by limiting

the propagation of internal arc fault and preserves uptime during maintenance and upgrade operations.

Flexible

Vertiv modular switchboard design facilitates a component agnostic solution, giving the customer more freedom to choose

their preferred components from an extensive range of well known manufacturers. Designs can be customized to fit the most

challenging specifications and site specific needs, while maximizing space and performance.

Vertiv™ UL891 Switchboard Installer/User Guide

Figure 2.1 Typical Switchboard

Figure 2.2 Typical Power Distribution Unit (PDU)

Figure 2.3 Typical Remote Power Panel (RPP)

Vertiv™ UL891 Switchboard Installer/User Guide

2.3 Design Features and Components

Typical switchboards are available with a variety of options. Below shows a typical arrangement with components and

features for a switchboard. PDUs and RPPs use the same typical layouts, but use different components to achieve their

designated goal, such as transformers and panelboards.

Figure 2.4 Rear Internal View

Figure 2.5 Front Internal View

Vertiv™ UL891 Switchboard Installer/User Guide

Sr. No. Item Description

1 Cableway Compartment Designated for customer connections.

2 MCCB Compartment Housing unit for MCCB.

3 MCCB – UL489 fixed mount circuit breaker Equipment designed to break electrical circuit if tripped.

4 ACB – UL1066 draw out circuit breaker Equipment designed to provide protection for overcurrent and short circuits using air.

5 Neutral Busbar Voltage difference to each phase is approximately equal in magnitude and are equally

spaced in phase.

6 Main Busbar Carries the majority of the current.

7 Panel Flange Connection Connection point between switchboard and busway route in a facility.

8 Ground Busbar Ground network for the lineup with taps.

9 Instrument Compartment Designated as the metering and control section.

2.4 Typical Switchboard Layouts

Switchboards provide typical layouts for ACBs and MCCBs within the lineup. Typical layouts include front and rear access,

with single and double stack ACBs in individual sections. See Figure 2.6 below .

Standard MCCB columns with MCCBs stacked on top of each other in individual sections. See Figure 2.7 on the facing page .

MCCB’s use rotary handles for turning the breakers on and off. In a front access only switchboard, there is a cableway for field

termination.

Figure 2.6 Typical ACB Layout

Front Access - Single ACB Front Access -Double ACB Rear Access - Single ACB Rear Access - Double ACB

Vertiv™ UL891 Switchboard Installer/User Guide

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