The A470 Trunk Road (Builth Wells to Llangurig, Powys) (Temporary Speed Restrictions & No Overtaking) Order 2019 / Gorchymyn Cefnffordd yr A470 (Llanfair-ym-Muallt i Langurig, Powys) (Cyfyngiadau Cyflymder Dros Dro a Dim Goddiweddyd) 2019

Link:

The A470 Trunk Road (Builth Wells to Llangurig, Powys) (Temporary Speed Restrictions & No Overtaking) Order 2019 / Gorchymyn Cefnffordd yr A470 (Llanfair-ym-Muallt i Langurig, Powys) (Cyfyngiadau Cyflymder Dros Dro a Dim Goddiweddyd) 2019

Source: Legislation .gov.uk

The A44 Trunk Road (Llangurig, Powys to Aberystwyth, Ceredigion) (Temporary Speed Restrictions & No Overtaking) Order 2019 / Gorchymyn Cefnffordd yr A44 (Llangurig, Powys i Aberystwyth, Ceredigion) (Cyfyngiadau Cyflymder Dros Dro a Dim Goddiweddyd) 2019

Link:

The A44 Trunk Road (Llangurig, Powys to Aberystwyth, Ceredigion) (Temporary Speed Restrictions & No Overtaking) Order 2019 / Gorchymyn Cefnffordd yr A44 (Llangurig, Powys i Aberystwyth, Ceredigion) (Cyfyngiadau Cyflymder Dros Dro a Dim Goddiweddyd) 2019

Source: Legislation .gov.uk

BS IEC/IEEE 60255-118-1:2018 Measuring relays and protection equipment Synchrophasor for power systems. Measurements

Voltage fluctuations
Electric power systems
Electric power system disturbances
Electrical protection equipment
Relays
Surge protection
Type testing
Surges (electrical)
Switches
Switchgear
Electrical testing

Link: BS IEC/IEEE 60255-118-1:2018 Measuring relays and protection equipment Synchrophasor for power systems. Measurements
Source: BSI Standards