Basic insulation definition

Basic insulation means insulation applied to live parts for protection against direct contact under fault-free conditions.
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Basic insulation means an insulation that protects persons from electrical hazards in systems with protective bonding.
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Basic insulation means insulation of hazardous-live-parts which provides basic protection.
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Examples of Basic insulation in a sentence

  • Basic insulation level (BIL) tests of the standard rated lightning impulse and power frequency withstand voltages were tested at >95 kV and at >38 kV, respectively.

  • Note 1: Basic insulation does not necessarily include insulation used exclusively for functional purposes.

  • Basic insulation: Insulation applied to live parts for protection against direct contact under fault-free conditions Double insulation: Insulation comprising both basic insulation and supplementary insulation Supplementary insulation: independent insulation applied in addition to basic insulation for protection against electric shock in the event of a failure of the basic insulation Reinforced insulation: Insulation of live parts for protection against electric shock equivalent to double insulation.

  • Basic insulation between enabling current paths(Impulse voltage withstand level: 4 kV)A mixture of SELV and PELV is strictly prohibited.

  • Table 1 – Basic insulation [Table C6 of IEC 60255-27:2013] Nominal ratedinsulation voltage or workingvoltage(r.m.s. ord.c.) up to Clearance115011511152115311541155 Linear interpolation may be used between the nearest two points, the calculated minimum CLEARANCE and CREEPAGE DISTANCE being rounded up to the next higher specified increment.

  • A new insulator should therefore be designed, using the above criterion with the following specifications:• Material: unglazed porcelain – to give acceptable performance under light and heavy pollution conditions.• Dimensions: 20 mm wide and deep and 600 mm long – similar dimensions to the fiberglass stay wire insulator currently used (700 mm long) [30].• Basic insulation level (BIL) comparable to the same fiberglass stay wire insulator (150 kV).

  • NOTE - Basic insulation does not necessarily include insulation used exclusively for functional purposes.

  • A general rule of thumb for isolators is that the device must be able to withstand an applied voltage of 2500 Vrms for 1 minute and must provide an isolation barrier insulation resistance of at least 109 Ω to provide basic insulation.Supplemental InsulationA second, independent, insulation that is added to Basic insulation to achieve double insulation.

  • Isolated DC EV charging station, according to the type of insulation between input and output: a) Basic insulation, b) Reinforced insulation, c) Double insulation.

  • Supple- mental insulation could be a grounded chassis or a second independent insulation mechanism.Double InsulationAn insulation system that provides Basic insulation plus an independent “supplemental” insulation that re- duces the risk of shock if the Basic insulation fails.


More Definitions of Basic insulation

Basic insulation means an isolation applied to live parts necessary to provide protection against direct contact (in a no-fault condition)
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Related to Basic insulation

  • Solid insulator means the insulating coating of wiring harnesses, provided in order to cover and prevent the high voltage live parts from any direct contact.

  • Incinerator means any enclosed device that:

  • Encapsulation means the application of an encapsulant.

  • PCBs means polychlorinated biphenyls.

  • Sewage sludge weight means the weight of sewage sludge, in dry U.S. tons, including admixtures such as liming materials or bulking agents. Monitoring frequencies for sewage sludge parameters are based on the reported sludge weight generated in a calendar year (use the most recent calendar year data when the NPDES permit is up for renewal).

  • Polystyrene foam adhesive means an aerosol adhesive designed to bond polystyrene foam to substrates.

  • High global warming potential hydrofluorocarbons means any hydrofluorocarbons in a particular end use for which EPA’s Significant New Alternatives Policy (SNAP) program has identified other acceptable alternatives that have lower global warming potential. The SNAP list of alternatives is found at 40 CFR Part 82 subpart G with supplemental tables of alternatives available at (http://www.epa.gov/snap/).

  • Sewage sludge fee weight means the weight of sewage sludge, in dry U.S. tons, excluding admixtures such as liming materials or bulking agents. Annual sewage sludge fees, as per section 3745.11(Y) of the Ohio Revised Code, are based on the reported sludge fee weight for the most recent calendar year.

  • Engine degreaser means a cleaning product designed to remove grease, grime, oil and other contaminants from the external surfaces of engines and other mechanical parts.

  • Bulk gasoline plant means a gasoline storage and distribution facility with an average daily throughput of 20,000 gallons (76,000 liters) of gasoline or less on a 30-day rolling average.

  • Gasoline means any liquid product prepared, advertised, offered for sale or sold for use as, or commonly and commercially used as, motor fuel for use in a spark-ignition, internal combustion engine, and which meets the specifications provided in Iowa Code section 214A.2.

  • Explosives (1) means solid, liquid or gaseous substances or mixtures of substances which, in their application as primary, booster, or main charges in warheads, demolition and other applications, are required to detonate.

  • Chemical Storage Facility means a building, portion of a building, or exterior area adjacent to a building used for the storage of any chemical or chemically reactive products.

  • Sewage sludge means a solid, semi-solid, or liquid residue generated during the treatment of domestic sewage in a treatment works as defined in section 6111.01 of the Revised Code. "Sewage sludge" includes, but is not limited to, scum or solids removed in primary, secondary, or advanced wastewater treatment processes. "Sewage sludge" does not include ash generated during the firing of sewage sludge in a sewage sludge incinerator, grit and screenings generated during preliminary treatment of domestic sewage in a treatment works, animal manure, residue generated during treatment of animal manure, or domestic septage.

  • Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.