IEC 62382:2006

Electrical and instrumentation loop check

describes the steps recommended to complete a loop check, which comprises the activities between the completion of the loop construction (including installation and point-to-point checks) and the start-up of cold commissioning. Is applicable for the construction of new plants and for expansion/retrofits (i.e. revamping) of E&I installations in existing plants (including PLC, BAS, DCS, panel-mounted and field instrumentation). It does not include a detailed checkout of power distribution systems, except as they relate to the loops being checked (i.e. a motor starter or a power supply to a four-wire transmitter).

General Information

• Status: Published
• Publication Date: 14-Nov-2006
• ICS: 25.040.01 - Industrial automation systems in general
• Technical Committee: SC 65E - Devices and integration in enterprise systems
• Drafting Committee: WG 3 - TC 65/SC 65E/WG 3
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 08-Nov-2012

Relations

• Replaces: IEC PAS 62382:2004 - Electrical and instrumentation loop check
• Effective Date: 05-Sep-2023
• Revised: IEC 62382:2012 - Control systems in the process industry - Electrical and instrumentation loop check
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD 62382
First edition
2006-11
Electrical and instrumentation loop check

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INTERNATIONAL IEC
STANDARD 62382
First edition
2006-11
Electrical and instrumentation loop check
© IEC 2006 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
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International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 62382 © IEC:2006(E)
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Terms and definitions.6
3 Abbreviations .7
4 The order of loop check and cold commissioning in the project schedule.7
5 Loop-check content .8
5.1 Included activities.8
5.2 Excluded activities.10
6 Loop check procedure .10
6.1 Documentation check .10
6.2 Visual inspection .10
6.3 Function check .11
6.4 Checkout of E&I infrastructure and E&I concepts.11
6.5 Additional tests – Quality and safety relevant loops.12
7 Documents and test sheets .12
7.1 Input documents.12
7.2 Test sheets .12
7.3 Documents generated upon completion of loop check .13
7.4 Loop-check results .13
8 Quality assurance.13
9 Safety aspects.13

Annexe A (informative) Test report for analogue input loop.14
Annexe B (informative) Test report for binary input loop.15
Annexe C (informative) Test report for analogue output loop.16
Annexe D (informative) Test report for binary output loop .17
Annexe E (informative) Test report for motors and variable frequency drives .18

62382 © IEC:2006(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL AND INSTRUMENTATION LOOP CHECK

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62382 has been prepared by IEC technical committee 65:
Industrial-process measurement and control.
This standard cancels and replaces IEC/PAS 62382 published in 2004. This first edition
constitutes a technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
65/386/FDIS 65/395/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 62382 © IEC:2006(E)
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
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A bilingual version of this publication may be issued at a later date.

62382 © IEC:2006(E) – 5 –
INTRODUCTION
The inspection and verification of the individual measurements and controls in conjunction
with the control systems used to monitor these devices (DCS, PLC, etc.) is referred to as loop
check. In industry, numerous methods and philosophies are used to check the instrumentation
and controls after mechanical installation within projects for modified or new facilities.
This standard was created to provide a better understanding of what loop check consists of
and also to provide a standard methodology for executing loop check.
The annexes of this standard contain forms which may be used in the check procedures.
Buyers of this publication may copy these forms for their own purposes only in the required
amount.
For application in the pharmaceutical or other highly specialized industries, additional
guidelines (for example, Good Automated Manufacturing Practice (GAMP)), definitions and
stipulations should apply in accordance with existing standards, for example, for GMP
Compliance 21 CFR (FDA) and the Standard Operating Procedure of the European Medicines
Agency (SOP/INSP/2003).
– 6 – 62382 © IEC:2006(E)
ELECTRICAL AND INSTRUMENTATION LOOP CHECK

1 Scope
This International Standard describes the steps recommended to complete a loop check,
which comprises the activities between the completion of the loop construction (including
installation and point-to-point checks) and the start-up of cold commissioning. This standard
is applicable for the construction of new plants and for expansion/retrofits (i.e. revamping) of
E&I installations in existing plants (including PLC, BAS, DCS, panel-mounted and field
instrumentation). It does not include a detailed checkout of power distribution systems, except
as they relate to the loops being checked (i.e. a motor starter or a power supply to a four-wire
transmitter).
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
2.1
precommissioning
phase, during which the activities of non-operating adjustments, cold alignment checks,
cleaning, and testing of machinery take place.
NOTE Please refer to the enclosed annexes as an example.
2.2
mechanical completion
milestone, which is achieved when the plant, or any part thereof, has been erected and
tested in accordance with drawings, specifications, instructions, and applicable codes and
regulations to the extent necessary to permit cold commissioning
NOTE This includes completion of all necessary electrical and instrumentation work. This is a milestone marking
the end of the precommissioning activities.
2.3
cold commissioning
phase, during which the activities associated with the testing and operation of equipment or
facilities using test media such as water or inert substances prior to introducing any chemical
in the system take place
2.4
start-up
milestone marking the end of cold commissioning.
NOTE At this stage, the operating range of every instrument loop is already adjusted to reflect the actual working
condition.
2.5
hot commissioning
phase, during which the activities associated with the testing and operation of equipment or
facilities using the actual chemical process prior to making an actual production run take
place
2.6
start of production
milestone marking the end of hot commissioning.
NOTE At this stage, the plant is ready for full and continuous operation.

62382 © IEC:2006(E) – 7 –
2.7
performance test
milestone at which time the production plant runs to its design capacity
NOTE This test, carried out by the owner’s personnel with the help and supervision of the contractor, should
demonstrate the contractor’s process performance and consumption guarantees as specified in the contract.
2.8
acceptance of plant
milestone at which the formal turn over of the plant from the contractor to the owner is carried
out
2.9
basic software
software which, at a minimum, contains the graphic faceplates, base-level alarms and switch
points, basic interlocking and analogue control. In the case of safety loops, any safety switch
point should be included i
...