112-TP - Pravilnik o zavorah, varnostnih napravah in opremi železniških vozil

This draft European standard specifies requirements for the design and dimensions of the brake disc.
This draft European standard applies to discs mounted at the axle or drive-shaft of railway rolling stock by a cylindrical or conic tapered interference fit.
For each discrete unit so fitted, one or more disc brake rings, each having two axially separated friction faces, may be deployed.

Specifies four intermediate measures due to changes in observation conditions (time, calibration, operator and equipment) within a laboratory. These intermediate measures can be established by an experiment within a specific laboratory or by an interlaboratory experiment. Furthermore, discusses the implications of the definitions of intermediate precision measures, presents guidance on the interpretation and application of the estimates of intermediate precision measures in practical situations, discusses the connections between trueness and measurement conditions.

The purpose is to give some indications of the way in which accuracy data can be used in various practical situations by: giving a standard method of calculating the repeatability limit, the reproducibility limit and other limits, providing a way of checking the acceptability of test results obtained under repeatability or reproducibility conditions, describing how to assess the stability of results within a laboratory over a period of time, describing how to assess whether a given laboratory is able to use a given standard measurement method in a satisfactory way, describing how to compare alternative measurement methods.

Provides basic methods for estimating the bias of a measurement method and the laboratory bias when a measurement method is applied. In order that the measurements are made in the same way, it is important that the measurement method has been standardized. Can be applied only if the accepted reference value can be established as a conventional true value, e.g. by measurement standards or suitable reference materials or by referring to a reference measurement method or by preparation of a known sample.

Amplifies the general principles to be observed in designing experiments for the numerical estimation of the precision of measurement methods by means of a collaborative interlaboratory experiment, provides a detailed practical description of the basic method for routine use in estimating the precision of measurement methods, provides guidance to all personnel concerned with designing, performing or analysing the results of the tests for estimating precision. Annex B provides practical examples of estimating the precision of measurement methods by experiment.

1.1   This European Standard deals with the technical requirements to minimise the risks due to the hazards listed in clause 4, which can arise during installation , operation and maintenance of permanently installed equipment and systems for the power driven parking of motor vehicles, as defined in 3.1 to 3.4 below. Requirements are also given on the provision of information for use, which includes requirements for the drafting of the instructions. Electromagnetic compatibility requirements are also covered.
1.2   This European Standard applies to equipment and systems for the power driven parking of motor vehicles which have four wheels, are within a maximum size envelope of 5,30 m long, by 2,30 m wide, by 2,20 m high and have a mass less than 2500 kg. The equipment can be manually or automatically controlled.
1.3   This standard does not cover:
a) vehicle lifts (see EN 1493);
b) peripheral devices, which do not handle motor vehicles, e.g. parking meters, ticket machines;
c) requirements related to the building even if they support directly stored vehicles;
d) goods only lifts in accordance with EN 81-31;
e) power driven parking equipment intended for lifting and/or transporting any person;
f) transmission and interface of remote controls;
g) automatic parking equipment with transfer areas which move;
h) the use of power driven parking equipment by wheelchair users and deaf persons;
i) the workplace of any attendant.
1.4   This standard does not deal with the following:
a) hazards arising if loads, or other items fall from vehicles;
b) hazards arising if fuel or oil leaks from vehicles;
c) hazards caused by operating the equipment/system in electromagnetic fields outside the range of
EN 61000-6-2;
d) hazards caused by operating the equipment/system in areas subject to special regulations (e.g. explosive atmospheres, fire risks);
e) hazards caused by the use of dangerous/toxic materials, e.g. special hydraulic oil;
f) hazards caused by noise;
g) hazar