Tag: communications

Posted on

PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to condensation and pollution

Pollution
Indoor electric equipment
Switchgear
Rated voltage
Electrical equipment
Electric control equipment
Protected electrical equipment
Classification systems
Condensation
Testing conditions
Environment (working)
Insulating enclosures
High-voltage equipment

Link: PD IEC TS 62271-304:2019 High-voltage switchgear and controlgear Classification of indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV related to the use in special service conditions with respect to condensation and pollution
Source: BSI Standards

Posted on

BS EN IEC 62271-109:2019 High-voltage switchgear and controlgear Alternating-current series capacitor by-pass switches

Type testing
Alternating current
Electrical testing
Electric current control
Rated current
Outdoor electric equipment
Electric power distribution
Capacitors
Circuit-breakers
Short-circuit currents
Switchgear
Electric control equipment
Switches
Electrical equipment
Ratings
Electrical protection equipment
Switch-fuses
High-voltage equipment

Link: BS EN IEC 62271-109:2019 High-voltage switchgear and controlgear Alternating-current series capacitor by-pass switches
Source: BSI Standards

Posted on

BS EN ISO 6721-2:2019 Plastics. Determination of dynamic mechanical properties Torsion-pendulum method

Torsion testing
Plastics and rubber technology
Test equipment
Testing conditions
Torsion pendulums
Specimen preparation
Mechanical testing
Polymers
Error correction
Precision
Mechanical properties of materials
Modulus of elasticity
Plastics
Mathematical calculations
Test specimens
Dynamic testing

Link: BS EN ISO 6721-2:2019 Plastics. Determination of dynamic mechanical properties Torsion-pendulum method
Source: BSI Standards

Posted on

BS EN 50194-2:2019 Electrical apparatus for the detection of combustible gases in domestic premises Electrical apparatus for continuous operation in a fixed installation in recreational vehicles and similar premises. Additional test methods and performance requirements

Electronic equipment and components
Caravans
Vapours
Performance testing
Detectors
Boats
Gasoline
Safety measures
Continuous operation
Visual signals
Performance
Electrical equipment
Household equipment
Liquefied petroleum gas
Domestic
Electromagnetic compatibility
Audible warning devices
Cut-out devices
Instructions for use
Alarm systems
Caravanettes
Gas detectors

Link: BS EN 50194-2:2019 Electrical apparatus for the detection of combustible gases in domestic premises Electrical apparatus for continuous operation in a fixed installation in recreational vehicles and similar premises. Additional test methods and performance requirements
Source: BSI Standards

Posted on

BS EN 50341-2-15:2019 Overhead electrical lines exceeding AC 1 kV National Normative Aspects (NNAs) for the Netherlands (based on EN 50341-1:2012)

Electric cables
Electric power transmission
Northern Ireland
Scotland
Alternating-current power transmission
Electric power transmission lines
Alternating current
Wales
Structural design
Overhead power lines
Electric power distribution lines
Electrical equipment
Electric power systems
Power cables
Overhead line conductors
High-voltage equipment
Loading
England
United Kingdom
Overhead contact lines

Link: BS EN 50341-2-15:2019 Overhead electrical lines exceeding AC 1 kV National Normative Aspects (NNAs) for the Netherlands (based on EN 50341-1:2012)
Source: BSI Standards