CEI membership discount

Dear customer,
our systems show that your name is connected to a company associated with CEI: you would therefore be entitled to thediscount reserved for our members for CEI products and services. To check the validity of the association and benefit from the discounts, it is necessary to enter the register number assigned to your company in the box below.

Membership register number

VALIDATE AND CONTINUE

You can continue shopping even without entering the membership register number, but you will not have access to dedicated discounts.

CONTINUE WITHOUT DISCOUNTS

Do not ask me for the number of the membership register number, I accept that the list prices will be applied to me.

The membership register number has been correctly entered.
From now on, after logging into your MyNorma account, you can purchase our products at the price reserved for our members.

doneCONTINUE PURCHASING

CEI 34-189

Select a purchase option

BY SUBSCRIPTION

€ 10.00 BASE PRICE

€ 8.00 CEI MEMBERS

PAPER COPY

€ 25.00 BASE PRICE

€ 20.00 CEI MEMBERS

PDF

€ 25.00 BASE PRICE

€ 20.00 CEI MEMBERS

If you want to purchase PDF files that can be used by multiple users at the same time (PDF volume license), contact us at vendite@ceinorme.it.

CEI and other publisher documents are also available by subscription directly from the MyNorma catalogue (CEI Standards) or by contacting abbonamenti@ceinorme.it.

The subscription guarantees, throughout the subscription period, access to the latest edition in force and to any variants and/or corrigenda published. It allows you to access and download the document - in PDF format - for 12 months from the date of activation.
After this period, it will be possible to renew the service. If the subscription is not renewed, the PDF document will be disabled and the user agrees to destroy any printed copies.

Purchase

Current

CEI 34-189

CEI Classification: 34-189

Guida per l'estensione delle misure elettriche e fotometriche per apparecchi di illuminazione a LED

CEI

Guide

Publication Date: 2020-12

ValidFrom: 2021-01

Language: IT

Pages: 14

Issue Num.: 17815

Commitee: CEI-CT34

Starting from € 10.00

See the preview

The publication contains images and text that need color printing for a better reading.

Questa Guida consente il calcolo indiretto o l’interpolazione di parametri elettrici e fotometrici di apparecchi di illuminazione a LED che, per esigenze di costruzione o di gamma, vengono modificati in alcuni parametri elettrici o costruttivi (apparecchi derivati) rispetto ad un apparecchio di illuminazione (apparecchio originatore) per il quale è disponibile una misura completa dei parametri elettrici e fotometrici.
In questo documento si considerano le seguenti possibilità di modifica degli apparecchi derivati rispetto all’apparecchio originatore:
- diversa corrente di alimentazione dei moduli LED;
- uso di moduli LED con CCT diverso (stesse dimensioni, superficie di emissione della luce, distribuzione fotometrica, ecc.);
- uso di moduli LED con CRI diverso (stesse dimensioni, superficie di emissione della luce, distribuzione fotometrica, ecc.);
- uso di moduli LED con diverso flusso (stesse dimensioni, superficie di emissione della luce, distribuzione fotometrica, ecc.);
- uso di diverse unità di alimentazione (driver) con la stessa corrente di uscita. Uso di componenti aggiuntivi che non influiscono sulle prestazioni fotometriche (ad es. sistema di controllo).
Questa Guida fornisce metodi per l'interpolazione di diversi parametri in base a fattori proporzionali derivati da prove. Questo documento è una “guida operativa”.

International Coding Standard (ICS)

29.140.01

Lamps in general

Annotation

Standard Evolution

ICS

International Classification for Standards (ICS) is an international classification system for technical standards.

The ICS is a hierarchical classification organized on three levels.

Level 1 covers the main fields of activity in standardization, e.g. road vehicle engineering, agriculture, metallurgy.

Each field has a two-digit notation, e.g.

  43    Road Vehicle Engineering

The main fields are subdivided into groups (level 2). The notation of a group consists of the field notation and a three-digit group number, separated by a point, e.g.

  43.040    Road vehicle systems

Some groups are further divided into sub-groups (level 3). The notation of a sub-group consists of the group notation and a two-digit number, separated by a point, e.g.

  43.040.20 Lighting, signaling and warning devices

You can identify the ICS code of your interest by typing the code or a keywordword in the dropdown ICS field, and by selecting one of the filtered results.

Search also in the summary/description of the standard

By flagging this control, the search for keywords will not be limited to the Standard Number and Title fields, but will also be performed in the Abstract of the standard.

This way, you will get more results.

You should use this option when you can not find the desired result with the standard approach and it is necessary to extend the scope of the search: by increasing the number of results, you will increase the number of non-relevant elements, as well.