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

Current

IEC 61400-4:2012

Wind turbines – Part 4: Design requirements for wind turbine gearboxes

ISO

Standard

Publication Date: 2012

Commitee: ISO-TC60

Language: EN

Starting from € 13,333.33

See the preview

IEC 61400-4:2012(E) is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This standard applies to wind turbines installed onshore or offshore. It Standard provides guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this standard include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. The standard is based on gearbox designs using rolling element bearings. Also included is guidance on the engineering of shafts, shaft hub interfaces, bearings and the gear case structure in the development of a fully integrated design that meets the rigours of the operating conditions. Lubrication of the transmission is covered along with prototype and production testing. Finally, guidance is provided on the operation and maintenance of the gearbox.

International Coding Standard (ICS)

27.180

Wind turbine energy systems
* Including generation of electrical energy

21.200

Gears

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.