Construction electrical hazards
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Published by SALUSTo ensure safety from electrical hazards in construction, several key practices and requirements should be followed:
- Use of Protective Equipment: Employees working near exposed energized parts must use protective shields, barriers, or insulating materials to prevent accidental contact and protect against shock, burns, or other injuries [1].
- Alerting Techniques: Safety signs, symbols, or accident prevention tags should be used to warn employees about electrical hazards. Barricades should be used to prevent access to areas with uninsulated energized conductors [1].
- Personal Protective Equipment (PPE): Employees must be provided with appropriate electrical protective equipment, such as insulated gloves and nonconductive head protection, to protect against potential electrical hazards [2].
- Handling Conductive Materials: Conductive materials and equipment should be handled in a way that prevents contact with exposed energized conductors. This includes using insulation, guarding, and proper material handling techniques [3].
- Portable Ladders: When used near exposed energized parts, portable ladders must have nonconductive siderails to prevent electrical contact [3].
- Housekeeping and Maintenance: Employees should not perform housekeeping duties near live parts unless adequate safeguards are provided. Additionally, all electrical equipment should be maintained in proper working condition and tested according to the manufacturer's recommendations [3].
- Confined Spaces: In confined or enclosed spaces containing exposed energized parts, protective shields, barriers, or insulating materials must be used to avoid inadvertent contact [3].
By adhering to these guidelines, construction sites can significantly reduce the risk of electrical hazards and ensure a safer working environment for all employees.
Sources used for this answer
[1] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)
Page 491
Open source documentSource excerpt
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (B) Ropes and handlines used near exposed energized parts must be nonconductive. - (ii) You must use protective shields, protective barriers, or insulating materials to protect each employee from shock, burns, or other electrically related injuries while that employee is working near exposed energized parts which might be accidentally contacted or where dangerous electric heating or arcing might occur. When normally enclosed live parts are exposed for maintenance or repair, they must be guarded to protect unqualified persons from contact with the live parts. - (2) Alerting techniques . You must use the following alerting techniques to warn and protect employees from hazards which could cause injury due to electric shock, burns, or failure of electric equipment parts: - (a) Safety signs and tags . You must use safety signs, safety symbols, or accident prevention tags where necessary to warn employees about electrical hazards which may endanger them. - (b) Barricades . You must use barricades in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas exposing employees to uninsulated energized conductors or circuit parts. Conductive barricades may not be used where they might cause an electrical contact hazard. - (c) Attendants . If signs and barricades do not provide sufficient warning and protection from electrical hazards, you must station an attendant to warn and protect employees. - (3) Design requirements . Insulating blankets, ,matting, covers, line hose, gloves, and sleeves made of rubber must meet the following requirements: ## (a) Manufacture and marking . - (i) Blankets, gloves, and sleeves must be produced by a seamless process. - (ii) Each item must be clearly marked as follows: - (A) Class …
[2] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)
Page 490
Open source documentSource excerpt
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (I) The employer ensures that the employee who applied the lock or tag is not available at the workplace; and - (II) The employer ensures that the employee is aware that the lock or tag has been removed before he or she resumes work at that workplace. - (D) You must provide a visual determination that all employees are clear of the circuits and equipment. [Statutory Authority: RCW 49.17.010, .040, .050, and .060. 15-24-100 (Order 15-04), § 296-24-975, filed 12/01/2015, effective 01/05/2016 Statutory Authority: RCW 49.17.010, .040, .050, and .060. 04-15-105 (Order 03-12), § 296-24-975, filed 07/20/04, effective 11/01/04. [Statutory Authority: Chapter 49.17 RCW. 94-15-096 (Order 94-07), 296-24-975, filed 7/20/94, effective 9/20/94; 91-24-017 (Order 91-07), 296-24-975, filed 11/22/91, effective 12/24/91.] ## WAC 296-24-980 Safeguards for personnel protection. ## (1) Use of protective equipment . - (a) Personal protective equipment . - (i) You must provide employees working in areas where there are potential electrical hazards with electrical protective equipment that is appropriate for the specific parts of the body to be protected and for the work to be performed, and you must ensure that they use such protective equipment. - Note: Personal protective equipment requirements are contained in chapter 296-24 WAC Part L, and WAC [redacted identifier]. - (ii) You must maintain protective equipment in a safe, reliable condition and you must periodically inspect or test it, as required by chapter 296-24 WAC Part L, and WAC [redacted identifier]. - (iii) If the insulating capability of protective equipment may be subject to damage during use, you must protect the insulating material. (For example, an outer covering of leather is sometimes used for the p…
[3] Safety Standards for General Safety and Health Standards (Chaper 296-24 WAC)
Page 483
Open source documentSource excerpt
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ - (c) Employees standing on the ground must not contact the vehicle or mechanical equipment or any of its attachments, unless: - (i) The employee is using protective equipment rated for the voltage; or - (ii) The equipment is located so that no uninsulated part of its structure (that portion of the structure that provides a conductive path to employees on the ground) can come closer to the line than permitted in this section. - (d) If any vehicle or mechanical equipment capable of having parts of its structure elevated near energized overhead lines is intentionally grounded, employees working on the ground near the point of grounding must not stand at the grounding location whenever there is a possibility of overhead line contact. You must take additional precautions, such as the use of barricades or insulation, to protect employees from hazardous ground potentials, depending on earth resistivity and fault currents, which can develop within the first few feet or more outward from the grounding point. ## (9) Illumination . - (a) Employees must not enter spaces containing exposed energized parts, unless illumination is provided that enables the employees to perform the work safely. - (b) Where lack of illumination or an obstruction precludes observation of the work to be performed, employees must not perform tasks near exposed energized parts. Employees must not reach blindly into areas which may contain energized parts. - (10) Confined or enclosed work spaces . When an employee works in a confined or enclosed space (such as a manhole or vault) that contains exposed energized parts, you must provide, and the employee must use, protective shields, protective barriers, or insulating materials as necessary to avoid inadvertent contact with these parts. Doo…
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