GB/T 7251.7-2015 Low-voltage switchgear and controlgear assemblies―Part 7:Assemblies for specific applications such as marinas,camping sites,market squares,electric vehicles charging stations
Low-voltage switchgear and controlgear assemblies―Part 7:Assemblies for specific applications such as marinas,camping sites,market squares,electric vehicles charging stations
Note 1: Throughout this part, the terms AMHS (see 3.1.101), ACCS (see 3.1.102), AMPS (see 3.1.103), ACSEV (see 3.1.104) are used for low-voltage switchgear and controlgear assemblies intended for use respectively in marinas and similar locations (AMHS), camping sites and similar locations (ACCS), market squares and other similar external public sites (AMPS), charging stations (ACSEV). The term ASSEMBLIES is used for indicating all the boards.
This part of GB 7251 defines the specific requirements of assemblies as follows:
- assemblies for which the rated voltage does not exceed 1,000V in case of a.c. or 1,500V in case of d.c;
- stationary or movable assemblies with enclosure;
- assemblies intended for use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy consuming equipment;
- assemblies operated by ordinary persons;
- assemblies intended to be installed and used in marinas, camping sites, market squares and other similar external public sites or similar sites;
- assemblies intended for charging stations for electric vehicles.
Note 2: Assemblies intended for charging stations for electric vehicles (ACSEV) are designed to integrate the functionality for electric vehicle conductive charging systems according to IEC 61851-1.
This part is applicable to all assemblies whether they are designed, manufactured and verified on a one-off basis or fully standardised and manufactured in quantity.
The manufacture and/or assembly may be carried out other than by the original manufacturer (see GB 7251.1-2013, 3.10.1).
This part is not applicable to individual electrical equipment and self-contained components, such as circuit breakers, fuse switches, electronic equipment, etc. which comply with the relevant product standards.
Note 3: Where electrical equipment is directly connected to public low voltage supply system and equipped with a meter for billing of the legal provider of the low voltage supply, particular requirements based on national regulations apply, if any.
This part is not applicable to boxes and enclosures for electrical accessories for household and similar fixed electrical installations as defined in IEC 60670-24.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
In addition to the following contents, this clause in GB 7251.1-2013 also applies.
Addition:
GB 7251.1-2013 Low-voltage Switchgear and Controlgear Assemblies - Part 1: General Rules (IEC 61439-1:2011, IDT)
IEC 60068-2-75 Environmental Testing - Part 2-75: Tests - Test Eh: Hammer tests
IEC 60364-4-43 Low-voltage Electrical Installations - Part 4-43: Protection for Safety - Protection Against Overcurrent
IEC 60364-7-708 Low-voltage Electrical Installations - Part 7-708: Requirements for Special Installations or Locations - Caravan Parks, Camping Parks and Similar Locations
IEC 60364-7-709 Low-voltage Electrical Installations - Part 7-709: Requirements for Special Installations or Locations - Marinas and Similar Location
IEC 60364-7-722 Low-voltage Electrical Installations - Part 7-722: Requirements for Special Installations or Locations - Supply of Electric Vehicle )
IEC 60364-7-740 Electrical Installations of Buildings - Part 7-740: Requirements for Special Installations or Locations - Temporary Electrical Installations for Structures, Amusement Devices and Booths at Fairgrounds, Amusement Parks and Circuses
3 Terms and Definitions
In addition to the following contents, this clause in GB 7251.1-2013 also applies.
3.1 General terms
Additional terms:
3.1.101
low voltage switchgear and controlgear assembly for marinas and harbors sites; AMHS
combination of one or more transforming or switching devices together with associated control, measuring, signaling, protective and regulating equipment, with all their internal electrical and mechanical interconnections and structural parts, designed and built for use in all marinas, harbors and similar sites
3.1.102
low voltage switchgear and controlgear assembly for camping and caravan sites; ACCS
combination of one or more transforming or switching devices together with associated control, measuring, signaling, protective and regulating equipment, with all their internal electrical and mechanical interconnections and structural parts, designed and built for use in all camping, caravan and similar sites
3.1.103
low voltage switchgear and controlgear assembly for markets and other external public sites; AMPS
combination of one or more transforming or switching devices together with associated control, measuring, signaling, protective and regulating equipment, with all their internal electrical and mechanical interconnections and structural parts, designed and built for use in all market squares and other similar external public sites
3.1.104
low voltage switchgear and controlgear assembly for electrical vehicles charging stations; ACSEV
combination of one or more transforming or switching devices together with associated control, measuring, signaling, protective and regulating equipment, with all their internal electrical and mechanical interconnections and structural parts, designed and built for electric vehicles charging stations
Note: Electric vehicles conductive charging systems as described in IEC 61851-1 are included.
Modifications:
3.3 External design of assemblies
3.3.1
open-type assembly
This term of GB 7251.1-2013 does not apply.
3.3.2
dead-front assembly
This term of GB 7251.1-2013 does not apply.
3.5 Conditions of installation of assemblies
3.5.4
movable assembly
Addition of a new note to entry:
Note 1: Stationary or movable assemblies are intended to be connected to supply by either fixed or temporary connections e.g. plugs and socket outlets.
Additional terms:
3.5.101
ground-mounted stationary assembly
stationary assembly intended to be installed at ground level on a foundation
3.5.102
transportable assembly
semi-fixed assembly
movable assembly intended for use in a place where it is not permanently fixed; its location may vary during use on the same site
3.5.103
restricted access
access to the assembly, limited e.g. by private housing, private camping areas or similar places
3.5.104
non-restricted access
unlimited access to the assembly for all persons e.g. public areas
3.101
water and other fluids system
part of the assembly which contains water tubes, valves, joins and taps as service to connected user
Examples: Campers, caravans, vessels, etc.
