1. No user shall permit the use of and no person shall use a portable electric tool the operating voltage of which exceeds 50 to earth unless -
a. it is connected to a source of electrical energy incorporating an earth leakage protection device, the construction of which meets the requirements of a safety standard incorporated for this purpose in these regulations under section 36 of the Act; or
b. it is connected to a source of electrical energy through the interposition between each tool and the source of an individually double-wound isolating transformer, the secondary winding of which is not earthed at any point and the construction of which meets the requirements of a safety standard incorporated for this purpose in these regulations under section 36 of the Act; or
c. it is connected to a source of high frequency electrical energy derived from a generator which is used solely for supplying energy to such portable electric tool and which arrangement is approved by the chief inspector; or
d. it is clearly marked that it is constructed with double or reinforced insulation.
2. No person shall sell a portable electric tool constructed with double or reinforced insulation referred to in subregulation (1) (d) unless -
a. it is clearly marked that it is constructed with such insulation; and
b. its insulation is constructed in accordance with a safety standard incorporated for this purpose in these regulations under section 36 of the Act.
3. No person shall use or permit the use of a portable electric tool which is not fitted with a switch to allow for easy and safe starting and stopping of the tool.
4. The user shall maintain every portable electric tool, together with its flexible cord and plug, in a serviceable condition.