UL 61010C-1:2002 pdf download Process Control Equipment
1 Scope and object
1.1 Scope
This nternational Standard specifies general safety requirements for electrical equipment intended forprofessional, industrial process, and educational use, including equipment and computing devices for:
– measurement and test;
– control;
– laboratory use;
– accessories intended for use with the above (e.g. sample handling equipment).This Part 1 of the standard applies to the equipment defined in a) to c) below, when used under theenvironmental conditions of 1.4.
a) Electrical measurement and test equipment
This is equipment which by electrical means measures, indicates or records one or moreelectrical or non-electrical quantities, also non-measuring equipment such as signal generators,measurement standards, power supplies, transducers, transmitters, etc
NOTE – All indicating and recording electrical measuring instruments (except those excluded in 1.1.2)fall within the scope of this standard unless they are panel meters designed only for building-in to otherequipment. Built-in panel meters are considered as components and only need to meet the relevantrequirements of IEC 1010, or other standards, as part of the equipment into which they are built.
b) Electrical control equipment
This is equipment which controls one or more output quantities to specific values, with eachvalue determined by manual setting, by local or remote programming, or by one or more input
variables
c) Electrical laboratory equipment
This is equipment which measures, indicates, monitors or analyses substances, or is used toprepare materials.
This equipment may also be used in areas other than laboratories.
1.1DV.1 DE Addition of the following to the scope:
For Clauses 1.1 – 16.1 and Annexes replace the terms measuring equipment,” “measuringinstrument,”and “measuring circuits” with “PROCESS CONTROL EQUIPMENT,””process controlinstruments,”and “control circuits.”
1.1DV.2 DE Modification:
Remove “International” from the scope.
1.1DV.3 DE Modification:
Remove “laboratory equipment;” and “measurement and test equipment;” from the scope.1.1DV.4 DR Addition of the following referencing the National Electrical Code:
This standard applies to equipment to be employed in accordance with NFPA 70, NationalElectrical Code.
1.1.1 Aspects excluded from scope
This part 1 of the standard does not cover:
– reliable function, performance or other properties of the equipment;- effectiveness of transport packaging;
servicing (repair);
– protection of servicing (repair) personnel
NOTE – Servicing personnel are expected to be reasonably careful in dealing with obvious hazards, butthe design should protect against mishap by the use of warning labels, shields for hazardous voltageTERMNALs, segregation of low-voltage circuits from hazardous voltages, etc. More important, servicingpersonnel should be trained against unexpected hazards.