Hi All, we have been asked to install tails from a new DNO 400A TPN cut-out to an existing panelboard. This new DNO supply appears to be TN-S (we are trying to source the quotation to confirm the DNO supply arrangement.) The building is of steel frame cons

The DNO is obliged to give you the information under R.28 of ESQCR 2002:

A distributor shall provide, in respect of any existing or proposed consumer’s installation which is connected or is to be connected to his network, to any person who can show a reasonable cause for requiring the information, a written statement of—

...

(d) the type of earthing system applicable to the connection;

The DNO is obliged to give you the information under R.28 of ESQCR 2002:

A distributor shall provide, in respect of any existing or proposed consumer’s installation which is connected or is to be connected to his network, to any person who can show a reasonable cause for requiring the information, a written statement of—

...

(d) the type of earthing system applicable to the connection;