The voltage test on a new installation shall be made with direct current at the appropriate voltage, specified in Table below, and the leakage current recorded.
The voltage shall be increased gradually to the specified value and maintained for 15 minutes, between each conductor and earth, and between conductors. The test between each conductor and earth shall be done before the tests between conductors.

Далее идет таблица. В шапке одна большая колонка DC Test Voltage, которая делится на две колонки:

Between Each
Conductor and Earth
Note (1)
(+ Volts, To Earth)

и

Between Conductors
(+ To - Volts, Centre Point Earth)

Под шапкой цифровые значения в вольтах.

Под таблицей примечание:

Note (1) For cables having metal sheathing and/or armouring, the voltage shall be applied between each conductor and the earthed sheath/armour.

Заранее спасибо.