IEC 61326-1-2012 pdf free.Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 1: General requirements.
Computing devices and assemblies and similar equipment within the scope of Information Technology Equipment (ITE) and complying with applicable ITE EMC standards may be used in systems within the scope of this part of lEG 61326 without additional testing, it they are suitable for the intended electromagnetic environment.
It is generally considered that this standard takes precedence over the corresponding generic EMC standards.
The following equipment is covered by this standard.
a) Electrical measurement and test equipment
This is equipment which, by electrical means, measures, indicates or records one or more electrical or non-electrical quantities, also non-measuring equipment such as signal generators, measurement standards, power supplies and transducers.
b) Electrical control equipment
This is equipment which controls one or more output quantities to specific values, with each value determined by manual settings, by local or remote programming, or by one or more input variables. This includes Industrial Process Measurement and Control (IPMC) equipment, which consists of devices such as:
— process controllers and regulators;
— programmable controllers;
— power supply units for equipment and systems (centralized or dedicated);
— analogue/digital indicators and recorders;
— process instrumentation;
— transducers, positioners, intelligent actuators, etc.
c) Electrical laboratory equipment
This is equipment which measures, indicates monitors or analyses substances, or is used to prepare materials, and includes In Vitro Diagnostic (IVD) equipment. This equipment may also be used in areas other than laboratories, for example self-test IVD equipment may be used in the home.
Equipment within the scope of this standard might be operated in different electromagnetic environments; depending on the electromagnetic environment different emission and immunity test requirements are applicable.
This standard considers three types of electromagnetic environments:
• basic electromagnetic environment:
• industrial electromagnetic environment;
• controlled electromagnetic environment.
Corresponding immunity test requirements are described in Clause 6.
In terms of emission requirements, equipment shall be classified in Class A or Class B
equipment, as per the requirements and procedure of CISPR 11. The corresponding emission
requirements are described in Clause 7.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
lEG 60050 (all parts), International Electrotechnical Vocabulary (available at <http://www.electropedia.com>)
IEC 61000-3-2:2005, Electromagnetic compatibility (EMC) — Part 3-2: Limits — Limits for
harmonic current emissions (equipment input current < 16 A per phase)
Amendment 1:2008
Amendment 2:2009
IEC 61000-3-3:2008. Electromagnetic compatibility (EMC) — Part 3-3: Limits — Limitation of voltage changes. voltage fluctuations and flicker in public low-voltage supply systems. for equipment with rated current S 16 A per phase and not subject to conditional connection.IEC 61326-1 pdf free download.