Forms
sylius_add_to_cart
Errors
This form has no errors.
Default Data
| Property | Value |
|---|---|
| Model Format | same as normalized format |
| Normalized Format | Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#106970 -cart: App\Entity\Order\Order {#13374 …} -cartItem: App\Entity\Order\OrderItem {#106958 #id: null #order: null #quantity: 1 #unitPrice: 0 #originalUnitPrice: 0 #total: 0 #immutable: false #units: Doctrine\Common\Collections\ArrayCollection {#106982 …} #unitsTotal: 0 #adjustments: Doctrine\Common\Collections\ArrayCollection {#106983 …} #adjustmentsTotal: 0 #version: 1 #variant: App\Entity\Product\ProductVariant {#8104 #id: 5441 #code: "IEEE00005174PDF" #product: App\Entity\Product\Product {#7311 #id: 10850 #code: "IEEE00005174" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 #collection: Doctrine\Common\Collections\ArrayCollection {#7918 …} #initialized: true -snapshot: [ …4] -owner: App\Entity\Product\Product {#7311} -association: [ …21] -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …} -backRefFieldName: null -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#245606 …} -isDirty: false } #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751039322 {#7274 : 2025-06-27 17:48:42.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1753969918 {#7322 : 2025-07-31 15:51:58.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 38409 #name: "IEEE 1453.1:2012" #slug: "ieee-1453-1-2012-ieee00005174-242502" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n IEC/TR 61000-3-7:2008 is adopted by this guide. IEC 61000-3-7:2008 provides guidance on the principles that can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV, and EHV power systems (LV installations are covered in other IEC documents). The primary objective of this guide is to provide guidance to system operators or owners on engineering practices that will facilitate adequate service quality for all connected customers. This guide provides a methodology to allocate the capacity of the system to absorb voltage fluctuations (i.e., flicker). However, it does not address how to mitigate voltage fluctuations, nor does it address how to increase the capacity of the system to absorb such disturbances. Since the procedures outlined in this guide are necessarily based on certain simplifying assumptions, the approach will not always provide an optimum solution. The recommended approach should be used with flexibility and engineering judgment, when applying the given assessment procedures in full or in part.<br />\n \t\t\t\t<br />\n This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: * Flicker effect from light sources as a result of voltage fluctuations; * Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. NOTE The boundaries between the various voltage levels may be different for different countries (see IEV 601-01-28) [16]. This report uses the following terms for system voltage: - low voltage (LV) refers to Un = 1 kV; - medium voltage (MV) refers to 1 kV < Un = 35 kV; - high voltage (HV) refers to 35 kV < Un = 230 kV; - extra high voltage (EHV) refers to 230 kV < Un. In the context of this report, the function of the system is more important than its nominal voltage. For example, a HV system used for distribution may be given a "planning level" which is situated between those of MV and HV systems. """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide--Adoption of IEC/TR 61000-3-7:2008, Electromagnetic compatibility (EMC)--Limits--Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1743289200 {#7317 : 2025-03-30 00:00:00.0 Europe/Paris (+01:00) } -lastUpdatedAt: DateTime @1684360800 {#7292 : 2023-05-18 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1341525600 {#7318 : 2012-07-06 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1680127200 {#7316 : 2023-03-30 00:00:00.0 Europe/Paris (+02:00) } -edition: null -coreDocument: "1453.1" -bookCollection: "" -pageCount: 78 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } #optionValues: Doctrine\ORM\PersistentCollection {#8320 …} #position: 0 #createdAt: DateTime @1751041235 {#7283 : 2025-06-27 18:20:35.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1755611995 {#8121 : 2025-08-19 15:59:55.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#8264 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductVariantTranslation {#93381 #locale: "en_US" #translatable: App\Entity\Product\ProductVariant {#8104} #id: 5471 #name: null -shortDescription: null -description: null -notes: null -shippingInformation: "Instant download" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #version: 9 #onHold: 0 #onHand: 0 #tracked: false #weight: 0.0 #width: null #height: null #depth: null #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8136 …} #shippingCategory: null #channelPricings: Doctrine\ORM\PersistentCollection {#8298 …} #shippingRequired: true #images: Doctrine\ORM\PersistentCollection {#8295 …} -apiLastModifiedAt: DateTime @1754517600 {#8103 : 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -publishedAt: null -isbn: "978-0-7381-7285-9" -ean: "9780738172859" -numberOfUsers: 1 -physicalProduct: false -downloadableImmediately: true -downloadable: true -drmViewerUrl: "https://online-viewer.normadoc.com/aBdt4y" -sellable: true -documents: Doctrine\ORM\PersistentCollection {#8132 …} -drmTokens: Doctrine\ORM\PersistentCollection {#8124 …} -enabledForSubscribers: true -currentAreaContext: null } #productName: null #variantName: null } } |
| View Format | same as normalized format |
Submitted Data
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Passed Options
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|---|---|---|
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IEC 61000-3-7:2008 provides guidance on the principles that can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV, and EHV power systems (LV installations are covered in other IEC documents). The primary objective of this guide is to provide guidance to system operators or owners on engineering practices that will facilitate adequate service quality for all connected customers. This guide provides a methodology to allocate the capacity of the system to absorb voltage fluctuations (i.e., flicker). However, it does not address how to mitigate voltage fluctuations, nor does it address how to increase the capacity of the system to absorb such disturbances. Since the procedures outlined in this guide are necessarily based on certain simplifying assumptions, the approach will not always provide an optimum solution. The recommended approach should be used with flexibility and engineering judgment, when applying the given assessment procedures in full or in part.<br />\n \t\t\t\t<br />\n This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: * Flicker effect from light sources as a result of voltage fluctuations; * Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. NOTE The boundaries between the various voltage levels may be different for different countries (see IEV 601-01-28) [16]. This report uses the following terms for system voltage: - low voltage (LV) refers to Un = 1 kV; - medium voltage (MV) refers to 1 kV < Un = 35 kV; - high voltage (HV) refers to 35 kV < Un = 230 kV; - extra high voltage (EHV) refers to 230 kV < Un. In the context of this report, the function of the system is more important than its nominal voltage. For example, a HV system used for distribution may be given a "planning level" which is situated between those of MV and HV systems. """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide--Adoption of IEC/TR 61000-3-7:2008, Electromagnetic compatibility (EMC)--Limits--Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1743289200 {#7317 : 2025-03-30 00:00:00.0 Europe/Paris (+01:00) } -lastUpdatedAt: DateTime @1684360800 {#7292 : 2023-05-18 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1341525600 {#7318 : 2012-07-06 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1680127200 {#7316 : 2023-03-30 00:00:00.0 Europe/Paris (+02:00) } -edition: null -coreDocument: "1453.1" -bookCollection: "" -pageCount: 78 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } #optionValues: Doctrine\ORM\PersistentCollection {#8320 …} #position: 0 #createdAt: DateTime @1751041235 {#7283 : 2025-06-27 18:20:35.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1755611995 {#8121 : 2025-08-19 15:59:55.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#8264 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductVariantTranslation {#93381 #locale: "en_US" #translatable: App\Entity\Product\ProductVariant {#8104} #id: 5471 #name: null -shortDescription: null -description: null -notes: null -shippingInformation: "Instant download" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #version: 9 #onHold: 0 #onHand: 0 #tracked: false #weight: 0.0 #width: null #height: null #depth: null #taxCategory: Proxies\__CG__\App\Entity\Taxation\TaxCategory {#8136 …} #shippingCategory: null #channelPricings: Doctrine\ORM\PersistentCollection {#8298 …} #shippingRequired: true #images: Doctrine\ORM\PersistentCollection {#8295 …} -apiLastModifiedAt: DateTime @1754517600 {#8103 : 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -publishedAt: null -isbn: "978-0-7381-7285-9" -ean: "9780738172859" -numberOfUsers: 1 -physicalProduct: false -downloadableImmediately: true -downloadable: true -drmViewerUrl: "https://online-viewer.normadoc.com/aBdt4y" -sellable: true -documents: Doctrine\ORM\PersistentCollection {#8132 …} -drmTokens: Doctrine\ORM\PersistentCollection {#8124 …} -enabledForSubscribers: true -currentAreaContext: null } #productName: null #variantName: null } } |
same as passed value |
| product | App\Entity\Product\Product {#7311 #id: 10850 #code: "IEEE00005174" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 #collection: Doctrine\Common\Collections\ArrayCollection {#7918 …} #initialized: true -snapshot: [ …4] -owner: App\Entity\Product\Product {#7311} -association: [ …21] -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …} -backRefFieldName: null -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#245606 …} -isDirty: false } #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751039322 {#7274 : 2025-06-27 17:48:42.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1753969918 {#7322 : 2025-07-31 15:51:58.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 38409 #name: "IEEE 1453.1:2012" #slug: "ieee-1453-1-2012-ieee00005174-242502" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n IEC/TR 61000-3-7:2008 is adopted by this guide. IEC 61000-3-7:2008 provides guidance on the principles that can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV, and EHV power systems (LV installations are covered in other IEC documents). The primary objective of this guide is to provide guidance to system operators or owners on engineering practices that will facilitate adequate service quality for all connected customers. This guide provides a methodology to allocate the capacity of the system to absorb voltage fluctuations (i.e., flicker). However, it does not address how to mitigate voltage fluctuations, nor does it address how to increase the capacity of the system to absorb such disturbances. Since the procedures outlined in this guide are necessarily based on certain simplifying assumptions, the approach will not always provide an optimum solution. The recommended approach should be used with flexibility and engineering judgment, when applying the given assessment procedures in full or in part.<br />\n \t\t\t\t<br />\n This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: * Flicker effect from light sources as a result of voltage fluctuations; * Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. NOTE The boundaries between the various voltage levels may be different for different countries (see IEV 601-01-28) [16]. This report uses the following terms for system voltage: - low voltage (LV) refers to Un = 1 kV; - medium voltage (MV) refers to 1 kV < Un = 35 kV; - high voltage (HV) refers to 35 kV < Un = 230 kV; - extra high voltage (EHV) refers to 230 kV < Un. In the context of this report, the function of the system is more important than its nominal voltage. For example, a HV system used for distribution may be given a "planning level" which is situated between those of MV and HV systems. """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide--Adoption of IEC/TR 61000-3-7:2008, Electromagnetic compatibility (EMC)--Limits--Assessment of emission limits for the connection of fluctuating installations to MV, HV and EHV power systems" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1743289200 {#7317 : 2025-03-30 00:00:00.0 Europe/Paris (+01:00) } -lastUpdatedAt: DateTime @1684360800 {#7292 : 2023-05-18 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1341525600 {#7318 : 2012-07-06 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1680127200 {#7316 : 2023-03-30 00:00:00.0 Europe/Paris (+02:00) } -edition: null -coreDocument: "1453.1" -bookCollection: "" -pageCount: 78 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } |
same as passed value |
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|---|---|
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| attr_translation_parameters | [] |
| auto_initialize | true |
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| data | Sylius\Bundle\OrderBundle\Controller\AddToCartCommand {#106970 -cart: App\Entity\Order\Order {#13374 …} -cartItem: App\Entity\Order\OrderItem {#106958 #id: null #order: null #quantity: 1 #unitPrice: 0 #originalUnitPrice: 0 #total: 0 #immutable: false #units: Doctrine\Common\Collections\ArrayCollection {#106982 …} #unitsTotal: 0 #adjustments: Doctrine\Common\Collections\ArrayCollection {#106983 …} #adjustmentsTotal: 0 #version: 1 #variant: App\Entity\Product\ProductVariant {#8104 #id: 5441 #code: "IEEE00005174PDF" #product: App\Entity\Product\Product {#7311 #id: 10850 #code: "IEEE00005174" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 #collection: Doctrine\Common\Collections\ArrayCollection {#7918 …} #initialized: true -snapshot: [ …4] -owner: App\Entity\Product\Product {#7311} -association: [ …21] -em: ContainerHAOxQ06\EntityManagerGhostEbeb667 {#775 …} -backRefFieldName: null -typeClass: Symfony\Component\VarDumper\Caster\CutStub {#245606 …} -isDirty: false } #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751039322 {#7274 : 2025-06-27 17:48:42.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1753969918 {#7322 : 2025-07-31 15:51:58.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 38409 #name: "IEEE 1453.1:2012" #slug: "ieee-1453-1-2012-ieee00005174-242502" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n IEC/TR 61000-3-7:2008 is adopted by this guide. IEC 61000-3-7:2008 provides guidance on the principles that can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV, and EHV power systems (LV installations are covered in other IEC documents). The primary objective of this guide is to provide guidance to system operators or owners on engineering practices that will facilitate adequate service quality for all connected customers. This guide provides a methodology to allocate the capacity of the system to absorb voltage fluctuations (i.e., flicker). However, it does not address how to mitigate voltage fluctuations, nor does it address how to increase the capacity of the system to absorb such disturbances. Since the procedures outlined in this guide are necessarily based on certain simplifying assumptions, the approach will not always provide an optimum solution. The recommended approach should be used with flexibility and engineering judgment, when applying the given assessment procedures in full or in part.<br />\n \t\t\t\t<br />\n This part of IEC 61000 provides guidance on principles which can be used as the basis for determining the requirements for the connection of fluctuating installations to MV, HV and EHV public power systems (LV installations are covered in other IEC documents). For the purposes of this report, a fluctuating installation means an installation (which may be a load or a generator) that produces voltage flicker and / or rapid voltage changes. The primary objective is to provide guidance to system operators or owners on engineering practices which will facilitate the provision of adequate service quality for all connected customers. In addressing installations, this document is not intended to replace equipment standards for emission limits. This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: * Flicker effect from light sources as a result of voltage fluctuations; * Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. NOTE The boundaries between the various voltage levels may be different for different countries (see IEV 601-01-28) [16]. This report uses the following terms for system voltage: - low voltage (LV) refers to Un = 1 kV; - medium voltage (MV) refers to 1 kV < Un = 35 kV; - high voltage (HV) refers to 35 kV < Un = 230 kV; - extra high voltage (EHV) refers to 230 kV < Un. In the context of this report, the function of the system is more important than its nominal voltage. For example, a HV system used for distribution may be given a "planning level" which is situated between those of MV and HV systems. 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This report addresses the allocation of the capacity of the system to absorb disturbances. It does not address how to mitigate disturbances, nor does it address how the capacity of the system can be increased. Since the guidelines outlined in this report are necessarily based on certain simplifying assumptions, there is no guarantee that this approach will always provide the optimum solution for all flicker situations. The recommended approach should be used with flexibility and engineering judgment as far as engineering is concerned, when applying the given assessment procedures in full or in part. The system operator or owner is responsible for specifying requirements for the connection of fluctuating installations to the system. The fluctuating installation is to be understood as the customer's complete installation (i.e. including fluctuating and non fluctuating parts). Problems related to voltage fluctuations fall into two basic categories: * Flicker effect from light sources as a result of voltage fluctuations; * Rapid voltage changes even within the normal operational voltage tolerances are considered as a disturbing phenomenon. The report gives guidance for the coordination of the flicker emissions between different voltage levels in order to meet the compatibility levels at the point of utilisation. This report primarily focuses on controlling or limiting flicker, but a clause is included to address the limitation of rapid voltage changes. NOTE The boundaries between the various voltage levels may be different for different countries (see IEV 601-01-28) [16]. This report uses the following terms for system voltage: - low voltage (LV) refers to Un = 1 kV; - medium voltage (MV) refers to 1 kV < Un = 35 kV; - high voltage (HV) refers to 35 kV < Un = 230 kV; - extra high voltage (EHV) refers to 230 kV < Un. In the context of this report, the function of the system is more important than its nominal voltage. For example, a HV system used for distribution may be given a "planning level" which is situated between those of MV and HV systems. 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