Railway applications. Electric equipment for rolling stock. Rules for power resistors of open construction1 Scope and object This International Standard gives the rules for all power resistors (for example, braking, heating, snubber and filter) used in the power and auxiliary circuits on board rolling stock irrespective of the circuit and the type of vehicle where they are used. These resistors are generally of open construction and are used in polluted areas. The construction consists of resistor elements of grids, plates, strips, ribbons or wires. NOTE

2 Values to be achieved

d) safety during transport

low-level communication protocols

Minimizing the probability of failure of safety functions

welding torch or welding blowpipe to produce a weld of acceptable quality

ASTM F2281 and in ASTM A320/A320M

methods of locating leakage source before trench excavation commences and tests to determine the bond strength of the coating

public or private

Gauge wholesome supply

The second part covers how to verify testing machines

Part 1: Processes

which have not been taken into consideration