2038879 Environmantal Guidelines for Instalation of EV Power Systems 1v1

8/10/2019 2038879 Environmantal Guidelines for Instalation of EV Power Systems 1v1

1/8

2038879

Generic Guidelines

Environmental Protection

Eltek Valere DC Power Supply Systems

Outdoor Enclosures


2/8

2 Generic GuidelinesEnvironmental Protection 2038879, Issue 1.1, 2009-03

Information in this document is subject to change without notice and does not represent a commitment onthe part of Eltek Valere.

No part of this document may be reproduced or transmitted in any form or by any means electronic ormechanical, including photocopying and recording for any purpose without the explicit written permissionof Eltek Valere.

Copyright : Eltek Valere, 2009

NS-EN ISO 14001 Certified

Certificate No:11276-2007-AE-NOR-NA

NS-EN ISO 9001 Certified

Certificate No:4072-2007-AQ-NOR-NA

2038879 Issue 1.1, 2009 Mars

Published 2009-03-26

clha/mafe


3/8

Generic GuidelinesEnvironmental Protection 2038879, Issue 1.1, 2009-03 3

Table of Contents

1. Int roduct ion ............................................................................................ 4

2.

Cabinet and Environmental Considerations ....................................... 4

Open Loop (Fan/Filter) Cooling .................................................................................... 4

Standard Filter Class F5 (Mat or Pleated Type) ............................................................. 4Membrane Filter (Gore Pleated Type) ............................................................................ 4

Closed Loop (HEX or Air-Conditioner) Cooling ............................................................ 5

Heat Exchanger (HEX) ................................................................................................... 5

Air-Conditioner (ACU) ..................................................................................................... 5

Enclosure Material Selection Table .............................................................................. 5

3. Follow Installation and Commissioning Guides ................................. 6

4.

Adding Equipment to the Enclosure On Site ...................................... 6

5. Follow Maintenance Guide .................................................................... 7


4/8


1. Introduction

This document describes the environmental guidelines required for an Eltek Valere enclosure. The intentionof this guide is to ensure that Eltek Valere cabinets installed outdoors or in other exposed area are installed,

operated and maintained as required, in order to meet the applicable warranty terms for the product.

2. Cabinet and Environmental ConsiderationsAll Eltek Valere outdoor enclosures are design and verified to meet some mandatory environmental criteria

including:

Dust and water: EN 60950 IP 55 or IP54

Storage: EN 300 019-1-1 class 1.3Transport: EN 300 019-1-2 class 2.3

Operation: EN 300 019-1-4 class 4.1E.

However this does not mean that all cabinets can be used in any location without additional consideration of

the local environment on site. During site planning a few additional basic criteria must be considered. Please

note that MTBF/ lifetime of electronics also depends heavily on the temperature in the enclosure, this has to

be considered when selecting cooling option.

.

Open Loop (Fan/Filter) Cool ingOpen loop cooling systems (fan/filter) are using the ambient air to cool the equipment inside the cabinet.This solution will require maintenance as the filter media will get clogged and will have to be changed on

site. See maintenance section for more details. Note that temperature inside the cabinet will be higher than

ambient temperature (positive delta-t) when using this cooling option.

Standard Filter Class F5 (Mat or Pleated Type)

Recommended used on sites with:

Normal air pollution

Location 1500 meters or more from sea side

Not recommended used on sites with:

Moderate or high air pollution

Location closer than 1500 meters from sea side costal areas

Membrane Filter (Gore Pleated Type)Can be an alternative on sites with:

Normal or moderate air pollution


Not recommended used on sites with:High air pollution


5/8


Closed Loop (HEX or Air-Conditioner) Cool ingClosed loop cooling systems are not using the ambient air to cool the equipment inside the cabinet; it is only

circulating the internal air. The cooling of the air inside the enclosure can be done by using either ambient air

in a sealed channel (HEX) or active components (ACU). This will hence protect the equipment inside the

cabinet from a corrosive and humid environment.Note that temperature inside the cabinet will be higher than ambient temperature (positive delta-t) when

using HEX cooling option, ACU can provide a lower cabinet temperature than ambient temperature

(negative delta-t)

Heat Exchanger (HEX)Recommended used on locations with:

Normal tohigh air pollution


High humidity

Moderate ambient temperature

Not recommended used on sites with:

High ambient temperature

Air-Conditioner (ACU)Recommended used on locations with:

Normal tohigh air pollution


High humidity

Applications where the cabinet temperature is required to be below ambient temperature (negative delta-T)

Enclosure Material Selection Table

Enclosure material specification: Recommended used:

Painted uncoated (black) steel Indoors or other protected area

Painted alu-zinc or galvanized coated steel Outdoors or in other exposed area

Painted aluminium Outdoors or in other exposed area

Note:

Small traces of rust might be visible on the cutting edges of non painted parts made of alu-zinc or pre-

galvanized steel. This is a normal mechanical cutting/punching process phenomenon and will not limit the

product lifetime.


6/8


3. Follow Installation and Commissioning Guides

All Eltek Valere cabinets are electrically tested and visual inspected to secure delivery of a high qualityproduct.

To secure a high quality product also after installation and commissioning all cabinets are delivered with a

user manual (printed and/or electronically on a CD).

It is the customers responsibility that all people working on installation and commissioning have the

necessary technical knowhow and follow all details in the manual. If the manual is missing please contact

your local Eltek Valere company.

In addition to follow the details in the installation and commissioning guides please read and follow the

generic installation guidelines for lightning and surge protection ref. Eltek Valere document number

2024623

4. Adding Equipment to the Enclosure On Site

Some Eltek Valere enclosures might be delivered with additional internal space which can be used for

customer equipment. It will be the customers responsibility that this equipment is designed for the overall

cabinet environmental specifications before integration. Below are a few basic points for general

consideration:

Corrosion protection of the equipment (salt, humidity, air pollution) Temperature range of the equipment

Cooling design of equipment (airflow path, and available space for airflow)

Mechanical design of equipment (mounting, shock and vibration, zone 4)

Make sure you know the max cooling capacity of the cabinet. Do not add more heat load into thecabinet than max capacity.

Please do not limit your total evaluation to the above points, use them only as a rough guide.


7/8


5. Follow Maintenance Guide

To ensure that the expected design lifetime of the enclosure are met and to be within the warranty terms of

the product the owner of the enclosure must adapt and follow a complete maintenance scheme. This scheme

has to be tailored to match the local site and cabinet solution. Eltek Valere recommends general cabinet

maintenance minimum ones a year.Note: ones a year is not applicable for filter maintenance (see separate

section below)

All Eltek Valere cabinets are delivered with a user manual (printed and/or electronically on a CD).

It is the customers responsibility that all people involved in making the maintenance scheme or doing site

maintenance has the necessary technical knowhow and follows the recommendation in the manual. Please

note that the points in the manual have to be tailored by the customer to match the local site condition. If the

manual is missing please contact your local Eltek Valere company.

Below are a few basic points for general consideration. Please do not limit your total evaluation to the below

points.

Cabinet:

Check that no physical damage has been applied to the exterior of the cabinet (dents or scratches)

Use touch-up paint to repair any scratches on painted surfaces of the cabinet

Check that the door gasket has no visible damage

Check that cabinet cable entry points (bottom and/or top) is sealed

Check that the fixing bolts of the cabinet is tighten

Give the hinges of the door a droplet of oil or grease

Check for abnormal traces of dust or water inside the enclosure

Filter Maintenance (when applicable):

Implementation of an air filter preventive maintenance program is one of the most important factors to

protect installed equipment, keep operational cost down and to keep the equipment up running!

Make sure to adapt the filter change interval to the local conditions

It is recommended to inspect frequently in the first period after installation in order to understandand adapt to local conditions

Use only original filters provided by Eltek Valere or in accordance with technical specification

supplied by Eltek Valere Use of non-original filters might partly or completely void the warranty provided by Eltek Valere

See the manual or contact your local Eltek Valere company for further details.

Other maintenance:

Remove any leaves or other items that might block the external airflow (in/out)

Check that the fans are running without any abnormal noise


8/8

www.eltekvalere.com

Eltek Valere

1303 E. Arapaho Rd, Richardson, TX. 75081, USAPhone: +1 (469) 330-9100 Fax: +1 (469) 330-9101

Headquarters:Eltek Valere

Grterudv. 8, Pb 2340 Strms, 3003 Drammen, NorwayPhone: +47 32 20 32 00 Fax: +47 32 20 32 10

Documents

2038879 Environmantal Guidelines for Instalation of EV Power Systems 1v1