1.1 This standard specifies the electrical and related mechanical safety requirements for the design and construction of the electrical installation in internal combustion engine powered trucks (hereinafter referred to as """"trucks"""") with starter battery nominal voltages up to and including 24 V.NOTE 1 Part 3 of this standard details specific electrical requirements for electrical power transmission systems of internal combustion engine powered trucks.NOTE 2 Reference is made to this standard in other standards which cover the non-electrical requirements of the various industrial truck types.NOTE 3 The special requirements for operation in potentially e