Ordinance on Industrial Safety and Health
Ministry of Labour Ordinance No. 32 of September 30, 1972
Latest Amendments:
Ministry of Health, Labour and Welfare Ordinance No. 47 of March 30, 2007
In Japanese
掲載日：2008.03.28
Part II Safety Standards
Chapter V Prevention of Dangers Due to Electricity
Section 5 Management
Article 350 (Instruction, etc., in the Case of an Electric Work)
- (1) The employer shall, when carrying out the work set forth in Article 339, paragraph (1) of Article 341, paragraph (1) of Article 342, paragraph (1) of Article 344 or paragraph (1) of Article 345, make the period of the work, the contents of the work and electric circuits handled, and the system of electric circuits close to the said electrical circuits known to the worker engaging in the said work, and designate a leader of the work and have the said leader carry out the following matters:
- (i) To make the method and procedure of the work known to the workers in advance, and supervise the work directly.
- (ii) When carrying out the work set forth in paragraph (1) of Article 345 by taking the measures set forth in item (ii) of the same paragraph, to instruct the commencement of the work after having confirmed installation of a sign, etc., or arrangement of a watcher.
- (iii) When carrying out work after the electrical circuit is opened, to instruct the commencement of the work after having confirmed the state of power cut of the said electrical circuit, the locked switch used for such circuit opening, indication of matters necessary to prohibit electric charge, placement of a watcher, and the state of fitting of appliance for short circuit to ground after the electric circuit has been opened.
Article 351 (Periodical Self-inspections of Personal Insulating Protective Equipment, etc.)
- (1) The employer shall, as regards personal insulating protective equipment, etc., listed in each item of paragraph (1) of Article 348 (for those listed in item (v) of the same paragraph, limited to those used for an charged circuit of low voltage exceeding 300 V in alternative current; hereinafter the same shall apply in this Article), carry out self-inspections for the insulating performance, periodically once every period within six months. However, this shall not apply to the non-use period of personal insulating protective equipment, etc., which is not used for a period exceeding six months.
- (2) The employer shall, as regards the personal insulating protective equipment, etc., set forth in the proviso of the preceding paragraph, carry out self-inspection for the insulating performance before resuming the use.
- (3) The employer shall, when having found any abnormality in the said personal insulating protective equipment, etc., as a result of the self-inspection set forth in paragraph (1) or (2), not use them unless otherwise having repaired or taken other necessary measures.
- (4) The employer shall, when having carried out the self-inspections set forth in paragraph (1) or (2), record the following matters and preserve the records for three years:
- (i) The date of the inspection
- (ii) The method of the inspection
- (iii) The parts of a machine inspected
- (iv) The results of the inspection
- (v) The name of the person who has carried out the inspection
- (vi) When measures such as repair have been taken based on the result of the inspection, their contents.
Article 352 (Checkup, etc., Before Use of Electric Machine and appliance)
- (1) The employer shall, when using the electric machine and appliance listed in the left column of the following table, check the matters listed in the right column of the same table corresponding to the type of the said electric machine and appliance, and immediately repair or replace it when having found any abnormalities.
Types of electric machine and appliance Checking Matters A holder for welding rod, etc., set forth in Article 331 Damage on the insulated protected portion and connected portion of the cable for holders Automatic voltage reducing device for A.C. arc welding machine set forth in Article 332 Condition of operation Earth-leakage circuit breaker for preventing an electric shock set forth in paragraph (1) of Article 333 Motor-driven appliance set forth in Article 333 that are grounded by the method set forth in paragraph (2) of the said Article Abnormalities, such as cutoff grounding conductor and uplift or lift of grounding pole Movable electric cables and their connecting tools set forth in Article 337 Damage on the cover or armor Voltage detector set forth in item (iii) of paragraph (1) of Article 339 Voltage detecting capability Appliance for short circuit to ground set forth in item (iii) of paragraph (1) of Article 339 Damage on fittings and grounding lead wires Personal insulating protective equipment set forth in Articles 341 to 343 Damage such as cracks, splits and breakages , and drying conditions Insulating device set forth in Articles 341 and 342 Live line work equipment set forth in Articles 341 and 343 to 345 Live line work instruments set forth in Articles 341, 343 and 344 Personal insulating protective equipment and live line work instruments set forth in Articles 346 and 347 and insulating device set forth in Article 347 Insulating device set forth in item (iii) of Article 349 and item (vi) of paragraph (1) of Article 570
Article 353 (Checkup, etc., of an Enclosure, etc., of Electric Machine and Appliance)
- (1) The employer shall check damage of the enclosure and insulating cover set forth in Article 329 once or more a month, and immediately repairs it when having found any abnormalities.
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