Paragraph 2 Power
One man submersible craft and atmospheric diving suits shall be:—
provided with a source of power capable of maintaining normal services for a period adequate for the service envisaged and including the minimum life support requirements set out in paragraph 5 of this Schedule;
equipped with means of propulsion adequate for the service envisaged.
Where electrical power is used the craft shall, where appropriate, be:—
fitted with equipment compatible with the special conditions pertaining to marine service. Where practicable all equipment shall be continuously rated;
provided with adequate electrical protection;
fitted with effective means of isolating all poles or phases from every circuit and sub-circuit as may be necessary to minimise shock hazard.
fitted with circuits which do not use hull return;
provided with an earth leakage measuring device;
fitted with gas control safeguards, where applicable, on the compartments containing the power source.