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* Statutory information
STATUTORY INFORMATION
We produce and facilitate the publication of a range of statutory information
for energy consumers, generators and those who connect to the energy networks.
* National Terms of Connection
The electricity you receive from your electricity supplier is delivered using
the distribution system owned or operated by your electricity network
operator. National Terms of Connection (NTOC) is a connection agreement which
governs this process.
Your electricity supplier has been appointed as the agent of your electricity
network operator to obtain a connection agreement with you on the national
terms of connection. This means that, when you enter into your electricity
supply contract with your supplier, you are also entering into a connection
agreement with your electricity network operator on these terms.
SUPPLY CHARACTERISTICS
As required by law, the electricity delivered to your premises through our
distribution system will normally be at one of the voltages set out below and
will have the technical characteristics stated there:
* At 230 volts nominal: normally a single-phase supply, with a permitted
range of voltage variation from plus 10% to minus 6%
* At 400 volts nominal: normally a three-phase supply, with a permitted
range of voltage variation from plus 10% to minus 6%
* At either of the above voltages: the supply frequency will be 50 hertz,
with a permitted nominal variation of plus or minus 1%
COMMON QUESTIONS
What is a network operator?
A network operator is a company that transports electricity from generating
stations to your property, on behalf of your electricity supplier.
Who is my network operator?
You can use our postcode finder tool to find your local network operator.
Note that independent or private network operators also operate networks
throughout the country. Your electricity supplier should be able to advise
you further.
What are the National Terms of Connection?
Unless otherwise agreed, the National Terms of Connection form an agreement
between yourself and the operator of the distribution system through which
electricity is conveyed to your premises.
How do the National Terms of Connection affect me?
Unless otherwise agreed, both you and your network operator are legally bound
by the National Terms of Connection.
* Electricity distribution code
THE DISTRIBUTION CODE (DCODE) SETS OUT THE TECHNICAL DESIGN CRITERIA AND
PROCEDURES APPLICABLE TO NETWORK OPERATORS IN PLANNING AND DEVELOPING THE
DISTRIBUTION SYSTEM.
DCode covers a wide range of requirements and obligations network operators
are subject to in meeting their operational Licence conditions:
* Technical aspects relating to the connection and use of the electricity
distribution licensees’ distribution networks
* Procedures governing the relationship between a distribution licensee and
users of its distribution system for planning and operational purposes in
normal and emergency circumstances
* Specific Grid Code compliance obligations for distribution licensees
The Distribution Code is accompanied by two sets of documents known as Annex
1 and Annex 2.
Energy Networks Association (ENA) is responsible for the administration of
DCode.
DISTRIBUTED GENERATION
Connection guidance and application forms are available from our Resource
library. EREC G98 and EREC G99 both apply to connection generation equipment
to the network. Visit our Connecting to the networks page for detail on these
forms and other supporting documentation.
MODIFICATION PROPOSALS
All DCode modification proposals are overseen by the Distribution Code Review
Panel (DCRP), which ensures consistency across all modifications to the DCode
and the resulting documentation. A full set of these documents are available
at DCode website and the ENA Engineering Document Catalogue.
Further information about areas currently under revision and open
consultations is available from the DCode website.
CODE ADMINISTRATION
Code Administrators are the point of contact for matters relating to the
code, including how to become a party to the code and rules on modifying the
code. All Code Administrators act responsibility and comply with requirements
laid out in accordance with the Code Administration Code of Practice.
CENTRAL MODIFICATIONS REGISTER
Code Administrators have developed and regularly manage the Central
Modifications Register, which details all current modifications across the
eleven codes.
* Gas distribution code
THE JOINT OFFICE OF GAS TRANSPORTERS PUBLISHES INFORMATION REGARDING
TRANSPORTATION CHARGES AS REQUIRED. INDICATIVE AND ACTUAL CHARGES ARE
PUBLISHED ON THEIR WEBSITE, ALONG WITH ANY CONSULTATION PAPER.
Find out more on the Joint Office of Gas Transporters website.
* CiC Code of Practice
THE CIC CODE OF PRACTICE GOVERNS THE WAY IN WHICH OUR NETWORK OPERATORS
PROVIDE INPUT SERVICES TO FACILITATE COMPETITION IN THE ELECTRICITY
CONNECTIONS DISTRIBUTION MARKET.
Ultimately, it helps to create more choice for customers in selecting a
connection provider.
The CiC Code of Practice is approved by Ofgem and includes a process for
review so the code can evolve over time. This includes an industry panel with
representatives from across the industry – network operators, independent
network operators and independent connection providers –charged with
facilitating the code’s objectives and overseeing proposed modifications.
* Gas transporter procedure: Requesting gas service pipe pressures and capacity
information (GDN/PM/GT1)
Gas Transporter documentation can be found in our Resource library.
Regulation 6(8) of the Gas Safety Management Regulations 1986 imposes the
following duty on a person conveying gas in a network...
> “where he is requested to do so by a person proposing to carry out work in
> relation to a gas fitting, provide him with information about the operating
> pressures of the gas at the outlet of a service pipe”
While this regulation is applicable to persons undertaking work downstream of
the emergency control valve (ECV), which terminates the end of a gas supply
pipe (for example when intending to install a gas supply meter installation),
there are other categories of work such as work on service pipes where the
provision of information about the operating pressure of gas is also
important.
Management Procedure for Requesting Gas Service Pipe Pressures and Capacity
Information (GDN/PM/GT1) outlines how the information ought to be requested
and provides the documentation required.
* Gas transporter procedure: Requesting a gas transporter (GDN/PM/GT2)
Gas Transporter documentation can be found in our Resource library.
* Authorise the setting and sealing of regulators
* Authorise the installation of a meter by-pass
* Approve a meter housing design
The Gas Safety (Management) Regulations 1996 place a duty on a Gas
Transporter (GT) to ensure that gas is at a suitable pressure to ensure the
safe operation of any appliance that a consumer could reasonably expect to
operate.
The Gas Safety (Installation and Use) Regulations 1998 require that the
person who installs or adjusts a regulator shall ensure that it is adequately
sealed. This seal is to prevent the setting from being adjusted or interfered
with. No person except the GT or a person authorised to act on his behalf
shall break the seal applied to the regulator.
The HSE have considered that the Gas Safety (Management) Regulations 1996
should be taken as meaning that a GT is deemed to have ‘control of the meter
regulator’. This should ensure the integrity of the system downstream of the
meter regulator, and as far as reasonably practical, ensure that the
downstream system is supplied with a satisfactory pressure to ensure the safe
combustion of gas at a gas appliance.
The Unified Network Code requires that following approval by a Gas Shipper,
the provision and use of a meter by-pass shall be approved by the GT.
The Gas Act 1986 (As amended) requires that where a meter is to be installed
in a meter house, the type and construction of the meter house shall be
approved by the GT. Failure to obtain approval could result in the GT
refusing to connect, or as the case maybe, disconnect the gas supply to the
consumer’s premises.
Where a meter installation is or is intended to be connected to a network
operated by a GT, ‘Authorisation’ applies to any activity associated with:
* Initial setting of a regulator, sealing or breaking a seal and adjustment
of a regulator and any associated pressure control or protection devices
* Installation of a meter by-pass
* Design of meter housing
Management Procedure for Requesting a Gas Transporter (GDN/PM/GT2) [link]
provides details on how to make applications and shall be used by a Meter
Asset Manager (MAM) to request an Authorisation.
* Gas transporter procedure: Sealing of equipment to protect against theft of
gas and tampering (GDN/PM/GT4)
This Management Procedure is for use by Registered Users of the Uniform
Network Code, independent Gas Transporters’ (iGT) Uniform Network Code (UNC)
and their representatives.
This procedure specifies acceptable means to achieve the “isolation” of the
Supply Meter Point under the terms of the UNC, section G and appropriate
section of the iGT UNC.
The supply of gas at a meter installation may cease under the terms of the
Network Code or under Schedule 2B of the Gas Act 1986 as amended 1995. The
terms under which a supply of gas may cease are:
* Discontinuance – An act by a gas supplier as a means of stopping the flow
of gas at a gas supply meter point.
* Disconnection – An act by a GT to ensure that gas cannot be off-taken
through a supply meter point.
The options detailed in this procedure provide an acceptable means to protect
against the theft of gas and tampering in both domestic and non-domestic
installations and are acceptable to the GTs.
Adherence to this procedure is a precondition of amending the Supply Point
Register to set the status of the Supply Meter Point to “isolated” in
accordance with the requirements of the relevant GTs.
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Explore sections within
Industry hub :
* Databases
* Resource library
* Equipment interventions
* Engineering and technical programmes
* Standards and guidance
* Statutory information
Explore sections within
Industry hub :
* Databases
* Resource library
* Equipment interventions
* Engineering and technical programmes
* Standards and guidance
* Statutory information
RELATED NEWS
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* Energy networks
explained
* Creating tomorrow’s
networks
* Open Networks programme
* Gas Goes Green programme
* Biomethane
* Data transition
* Electric vehicles and heat pumps
* Gas-powered vehicles
* Hydrogen
* Innovation
* Next for Net Zero
* Smart meters
* Operating the
networks
* Cyber security
* Emergency planning
* Connecting to the networks
* Environment
* Metal theft
* Safety
* Street work
* The 105 service
* Information for
customers
* Building works and gas pipes
* Care and assisted living providers
* Compensation for power cuts
* Getting extra help and support
* How to prepare for storms and bad weather
* What are electromagnetic fields?
* What are signs of carbon monoxide poisoning?
* What happens during an energy shortage
* What to do if you smell gas
* What to do during a power cut
* Who’s my network operator?
* Wayleaves
* People and careers
in energy
* Developing future leaders
* Smashing the glass ceiling
* Energising people: Kat from SGN
* Pandemic people power
* Innovative initiatives focusing on gender diversity
* Energising people: Victoria from Northern Powergrid
* Making a positive impact
* Writing your own future
* Energising people: Mary from Northern Powergrid
* Identifying talent without bias
* Science, technology, engineering, and mathematics (STEM) ambassador
* About ENA
* Our members
* Leadership team
* Governance and committees
* Careers and culture
* FAQs
* Publications
* Industry hub
* Databases
* Resource library
* Equipment interventions
* Engineering and technical programmes
* Standards and guidance
* Statutory information
* Events
* SHE Management Conference
* Energy Innovation Summit
* Newsroom
* Our campaigns
* Open Networks: Five Years ON
* Tomorrow’s Heat, Today’s Opportunity
* Look Out, Look Up!
* Watch Out, Cables About!
* Think Before You Dig
* Be winter ready
* Contact
Search
The voice of the networks
* Energy networks
explained
* Creating tomorrow’s
networks
* Open Networks programme
* Gas Goes Green programme
* Biomethane
* Data transition
* Electric vehicles and heat pumps
* Gas-powered vehicles
* Hydrogen
* Innovation
* Next for Net Zero
* Smart meters
* Operating the
networks
* Cyber security
* Emergency planning
* Connecting to the networks
* Environment
* Metal theft
* Safety
* Street work
* The 105 service
* Information for
customers
* Building works and gas pipes
* Care and assisted living providers
* Compensation for power cuts
* Getting extra help and support
* How to prepare for storms and bad weather
* What are electromagnetic fields?
* What are signs of carbon monoxide poisoning?
* What happens during an energy shortage
* What to do if you smell gas
* What to do during a power cut
* Who’s my network operator?
* Wayleaves
* People and careers
in energy
* Developing future leaders
* Smashing the glass ceiling
* Energising people: Kat from SGN
* Pandemic people power
* Innovative initiatives focusing on gender diversity
* Energising people: Victoria from Northern Powergrid
* Making a positive impact
* Writing your own future
* Energising people: Mary from Northern Powergrid
* Identifying talent without bias
* Science, technology, engineering, and mathematics (STEM) ambassador
* About ENA
* Publications
* Industry hub
* Events
* Newsroom
* Our campaigns
* Be winter ready
* Contact
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